.btn {
          display: inline-flex;
          align-items: center;
          justify-content: center;
          gap: var(--space-xs);
          font-family: var(--font-sans);
          font-weight: var(--font-weight-semibold);
          border-radius: var(--radius-md);
          border: none;
          cursor: pointer;
          transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
          text-decoration: none;
        }

        .btn:hover:not(:disabled) {
          transform: translateY(-2px);
        }

        .btn:active:not(:disabled) {
          transform: translateY(0);
        }

        .btn:disabled {
          opacity: 0.5;
          cursor: not-allowed;
        }

        /* Variants */
        .btn-primary {
          background: var(--gradient-primary);
          color: white;
        }

        .btn-primary:hover:not(:disabled) {
          box-shadow: var(--shadow-lg);
        }

        .btn-secondary {
          background: var(--color-bg-tertiary);
          color: var(--color-text-primary);
        }

        .btn-secondary:hover:not(:disabled) {
          background: var(--color-bg-secondary);
          box-shadow: var(--shadow-md);
        }

        .btn-outline {
          background: transparent;
          color: var(--color-accent-primary);
          border: var(--border-width-thick) solid var(--color-accent-primary);
        }

        .btn-outline:hover:not(:disabled) {
          background: var(--color-accent-primary);
          color: white;
        }

        .btn-ghost {
          background: transparent;
          color: var(--color-text-secondary);
        }

        .btn-ghost:hover:not(:disabled) {
          background: var(--color-bg-secondary);
          color: var(--color-text-primary);
        }

        /* Sizes */
        .btn-sm {
          padding: var(--space-xs) var(--space-md);
          font-size: var(--font-size-sm);
        }

        .btn-md {
          padding: var(--space-sm) var(--space-lg);
          font-size: var(--font-size-base);
        }

        .btn-lg {
          padding: var(--space-md) var(--space-xl);
          font-size: var(--font-size-lg);
        }
      


        .glass-nav {
          margin: 20px 20px 0;
          padding: 16px 32px;
          border-radius: 16px;
          position: sticky;
          top: 20px;
          z-index: 100;
        }

        .nav-container {
          display: flex;
          align-items: center;
          justify-content: space-between;
          gap: 32px;
        }

        .nav-logo {
          text-decoration: none;
        }

        .logo-text {
          font-size: 24px;
          font-weight: 800;
          background: linear-gradient(135deg, #fff 0%, #8b5cf6 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
        }

        .nav-links {
          display: flex;
          align-items: center;
          gap: 32px;
          flex: 1;
          justify-content: center;
        }

        .nav-link {
          color: rgba(255, 255, 255, 0.8);
          text-decoration: none;
          font-size: 15px;
          font-weight: 500;
          transition: color 0.2s;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .nav-link:hover,
        .nav-link.active {
          color: #fff;
        }

        .nav-cta {
          flex-shrink: 0;
        }

        /* Hamburger — hidden on desktop */
        .nav-hamburger {
          display: none;
          flex-direction: column;
          gap: 5px;
          padding: 8px;
          cursor: pointer;
          background: none;
          border: none;
        }

        .hamburger-line {
          display: block;
          width: 24px;
          height: 2px;
          background: rgba(255, 255, 255, 0.9);
          border-radius: 2px;
          transition: transform 0.3s, opacity 0.3s;
        }

        .hamburger-line.open:nth-child(1) {
          transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-line.open:nth-child(2) {
          opacity: 0;
        }

        .hamburger-line.open:nth-child(3) {
          transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile dropdown — hidden on desktop */
        .nav-mobile-dropdown {
          display: none;
        }

        /* ===== MOBILE ===== */
        @media (max-width: 768px) {
          .glass-nav {
            margin: 10px 10px 0;
            padding: 12px 16px;
          }

          .nav-links {
            display: none;
          }

          .nav-cta {
            display: none;
          }

          .nav-hamburger {
            display: flex;
          }

          .nav-mobile-dropdown {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
          }

          .nav-mobile-link {
            display: block;
            padding: 10px 12px;
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
          }

          .nav-mobile-link:hover,
          .nav-mobile-link.active {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
          }

          .nav-mobile-cta {
            margin-top: 8px;
            text-decoration: none;
          }
        }
      


        .fb-banner {
          display: block;
          text-decoration: none;
          margin: 20px 20px 0;
          border-radius: 18px;
          position: relative;
          overflow: hidden;
          border: 1px solid rgba(167, 139, 250, 0.38);
          background:
            radial-gradient(120% 180% at 0% 0%, rgba(139, 108, 240, 0.22) 0%, rgba(103, 232, 249, 0.05) 40%, transparent 72%),
            rgba(13, 8, 40, 0.55);
          backdrop-filter: blur(20px);
          -webkit-backdrop-filter: blur(20px);
          box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 40px -16px rgba(139, 108, 240, 0.6);
          transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }
        .fb-banner:hover {
          transform: translateY(-2px);
          border-color: rgba(167, 139, 250, 0.7);
          box-shadow: 0 12px 44px rgba(0, 0, 0, 0.4), 0 0 56px -12px rgba(139, 108, 240, 0.8);
        }
        .fb-inner {
          display: flex;
          align-items: center;
          justify-content: space-between;
          gap: 24px;
          padding: 16px 28px;
          position: relative;
          z-index: 2;
        }
        .fb-left {
          display: flex;
          align-items: center;
          gap: 18px;
          flex-wrap: wrap;
          min-width: 0;
        }
        .fb-badge {
          display: inline-flex;
          align-items: center;
          gap: 9px;
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 11px;
          letter-spacing: 0.18em;
          text-transform: uppercase;
          font-weight: 700;
          color: #c3b0ff;
          white-space: nowrap;
          padding: 6px 14px;
          border-radius: 999px;
          border: 1px solid rgba(167, 139, 250, 0.45);
          background: rgba(139, 108, 240, 0.16);
        }
        .fb-dot {
          width: 7px;
          height: 7px;
          border-radius: 50%;
          background: #8b6cf0;
          box-shadow: 0 0 10px #8b6cf0;
          animation: fb-pulse 2s infinite;
        }
        @keyframes fb-pulse {
          0%, 100% { opacity: 1; }
          50% { opacity: 0.4; }
        }
        .fb-text {
          font-size: 15px;
          line-height: 1.4;
          color: rgba(232, 232, 238, 0.9);
          font-weight: 500;
        }
        .fb-text b { color: #fff; font-weight: 800; }
        .fb-scarcity { color: rgba(196, 181, 253, 0.95); font-weight: 600; }
        .fb-cta {
          display: inline-flex;
          align-items: center;
          gap: 8px;
          white-space: nowrap;
          font-size: 14px;
          font-weight: 700;
          color: #0c0f2a;
          padding: 11px 22px;
          border-radius: 999px;
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          box-shadow: 0 6px 20px -6px rgba(167, 139, 250, 0.8);
          transition: gap .2s ease;
        }
        .fb-banner:hover .fb-cta { gap: 12px; }
        .fb-arrow { font-weight: 800; }

        @media (max-width: 760px) {
          .fb-inner {
            flex-direction: column;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 20px;
          }
          .fb-cta { align-self: stretch; justify-content: center; }
          .fb-text { font-size: 14px; }
        }
      


        /* ═══ ANNOUNCEMENT PILL — SERAPH + Workshop (hh-pill) ═══ */
        .hh-pill {
          display: inline-flex; align-items: center; gap: 10px;
          padding: 9px 18px; border-radius: 999px;
          background: rgba(139,92,246,0.10);
          border: 1px solid rgba(167,139,250,0.35);
          margin-bottom: 18px;
          font-family: 'JetBrains Mono', monospace;
          font-size: 12px; letter-spacing: 0.04em;
          flex-wrap: wrap; justify-content: center;
          transition: border-color 200ms, background 200ms;
        }
        .hh-pill:hover { border-color: rgba(167,139,250,0.7); background: rgba(139,92,246,0.16); }
        .hh-pill-badge {
          padding: 2px 9px; border-radius: 999px;
          background: linear-gradient(135deg, rgba(139,92,246,0.9), rgba(99,102,241,0.9));
          color: #fff; font-size: 10px; font-weight: 700; letter-spacing: 0.16em;
          animation: hh-pill-pulse 2.4s ease-in-out infinite;
        }
        @keyframes hh-pill-pulse {
          0%, 100% { box-shadow: 0 0 0 0 rgba(167,139,250,0.5); }
          50%      { box-shadow: 0 0 12px 2px rgba(167,139,250,0.35); }
        }
        .hh-pill-link {
          color: rgba(226,220,255,0.92); text-decoration: none;
          transition: color 160ms;
        }
        .hh-pill-link:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
        .hh-pill-sep { color: rgba(255,255,255,0.25); }
        .hh-pill-arrow { color: rgba(167,139,250,0.85); }
        @media (max-width: 540px) {
          .hh-pill { font-size: 11px; gap: 7px; padding: 8px 14px; }
        }

        /* ═══ HOME HERO — horizontal 2-col, glass card ════════════════════ */
        .hh-section {
          margin: 40px 20px;
          padding: 0;
        }
        .hh-card {
          position: relative;
          border-radius: 24px;
          overflow: hidden;
          isolation: isolate;
          background: rgba(255, 255, 255, 0.03);
          backdrop-filter: blur(20px);
          -webkit-backdrop-filter: blur(20px);
          border: 1px solid rgba(255, 255, 255, 0.1);
          box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .hh-grid {
          display: grid;
          grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
          align-items: center;
          min-height: 580px;
        }

        /* LEFT — copy column. */
        .hh-copy {
          padding: 24px 16px 64px 64px;
          display: flex;
          flex-direction: column;
          justify-content: center;
          align-items: flex-end;
          position: relative;
          z-index: 2;
        }
        .hh-copy > * {
          width: 100%;
          max-width: 760px !important;
          text-align: left;
        }
        .hh-top {
          padding: 64px 56px 24px;
          text-align: center;
          position: relative;
          z-index: 2;
        }
        .hh-eyebrow {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 12px;
          letter-spacing: 0.24em;
          text-transform: uppercase;
          color: rgba(196,181,253,0.95);
          font-weight: 600;
          margin-bottom: 18px;
        }
        .hh-h1 {
          font-size: clamp(44px, 5vw, 76px);
          font-weight: 800;
          line-height: 1.0;
          letter-spacing: -0.025em;
          margin: 0 auto;
          color: #e8e8ee;
          text-shadow: 0 2px 16px rgba(0,0,0,0.5);
          max-width: 920px;
        }
        .hh-h1-grad {
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
        }
        .hh-h2 {
          font-size: clamp(26px, 2.6vw, 34px);
          font-weight: 700;
          letter-spacing: -0.01em;
          margin-bottom: 16px;
          color: #e8e8ee;
          line-height: 1.2;
          max-width: 580px;
        }
        .hh-h2-aria {
          color: rgba(196,181,253,1);
          font-weight: 700;
          letter-spacing: 0.04em;
        }
        .hh-acro {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 11px;
          letter-spacing: 0.24em;
          text-transform: uppercase;
          color: rgba(196,181,253,0.85);
          margin-bottom: 32px;
        }
        .hh-desc {
          color: rgba(232,232,238,0.95);
          font-size: 17px;
          line-height: 1.55;
          font-weight: 600;
          margin-bottom: 12px;
          max-width: 540px;
        }
        .hh-tag {
          color: rgba(232,232,238,0.78);
          font-size: 15.5px;
          line-height: 1.65;
          font-weight: 400;
          margin-bottom: 18px;
          max-width: 540px;
        }
        .hh-tag-strong {
          color: #e8e8ee;
          font-size: 16.5px;
          font-weight: 700;
          line-height: 1.45;
          margin-bottom: 30px;
          max-width: 540px;
          letter-spacing: -0.005em;
        }
        .hh-quote {
          position: relative;
          padding: 18px 22px 18px 28px;
          border-radius: 0;
          border: none;
          border-left: 2px solid rgba(167,139,250,0.55);
          background: transparent;
          margin-bottom: 36px;
          max-width: 540px;
        }
        .hh-quote-text {
          font-style: italic;
          font-size: 15.5px;
          color: rgba(232,232,238,0.9);
          line-height: 1.55;
          font-weight: 400;
          letter-spacing: 0.005em;
        }
        .hh-quote-cite {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 10.5px;
          color: rgba(196,181,253,0.85);
          margin-top: 10px;
          letter-spacing: 0.12em;
          text-transform: uppercase;
          font-style: normal;
        }
        .hh-cta-row {
          display: flex;
          gap: 14px;
          flex-wrap: wrap;
          margin-bottom: 28px;
        }
        .hh-trust {
          display: flex;
          flex-wrap: wrap;
          align-items: center;
          gap: 8px 0;
          font-size: 12.5px;
          color: rgba(232,232,238,0.68);
          letter-spacing: 0.02em;
        }
        .hh-trust span {
          display: inline-flex;
          align-items: center;
          gap: 6px;
        }
        .hh-trust span + span::before {
          content: '·';
          margin: 0 12px;
          color: rgba(167,139,250,0.45);
        }

        /* ═══ RIGHT — screenshot rotator (frame size IDENTICAL to original) ═══ */
        .hh-shot-col {
          position: relative;
          display: flex;
          align-items: center;
          justify-content: flex-end;
          padding: 24px 56px 64px 0;
          overflow: hidden;
        }
        .hh-shot-frame {
          position: relative;
          width: 100%;
          max-width: 880px;
          border-radius: 16px;
          overflow: hidden;
          box-shadow: 0 32px 80px rgba(0,0,0,0.6);
          border: 1px solid rgba(255,255,255,0.06);
          transform: perspective(1400px) rotateY(-4deg) translateY(0);
          animation: hh-float 6s ease-in-out infinite;
          will-change: transform;
        }
        @keyframes hh-float {
          0%, 100% { transform: perspective(1400px) rotateY(-4deg) translateY(0); }
          50%      { transform: perspective(1400px) rotateY(-4deg) translateY(-14px); }
        }
        @media (prefers-reduced-motion: reduce) {
          .hh-shot-frame { animation: none; }
        }

        /* image stack — anchor (first) sets the frame height naturally,
           others overlay at the same dimensions and crossfade in/out */
        .hh-shot-img {
          width: 100%;
          display: block;
          opacity: 0;
          transition: opacity 800ms cubic-bezier(0.22, 1, 0.36, 1);
        }
        .hh-shot-img.hh-shot-anchor {
          position: relative;
          height: auto;
        }
        .hh-shot-img:not(.hh-shot-anchor) {
          position: absolute;
          top: 0;
          left: 0;
          width: 100%;
          height: 100%;
          object-fit: contain;
          object-position: center;
          background: rgba(8, 4, 20, 0.55);
        }
        .hh-shot-img.is-active {
          opacity: 1;
        }

        .hh-shot-frame::before {
          content: '';
          position: absolute;
          inset: 0;
          background: linear-gradient(
            90deg,
            rgba(13,6,40,0.55) 0%,
            rgba(13,6,40,0.2) 6%,
            transparent 14%,
            transparent 100%
          );
          pointer-events: none;
          z-index: 2;
        }
        .hh-shot-frame::after {
          content: '';
          position: absolute;
          inset: 0;
          background: linear-gradient(180deg, rgba(13,6,40,0.3) 0%, transparent 14%, transparent 86%, rgba(13,6,40,0.3) 100%);
          pointer-events: none;
          z-index: 2;
        }
        .hh-shot-caption {
          position: absolute;
          bottom: 28px;
          left: 0;
          right: 56px;
          text-align: center;
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 11px;
          letter-spacing: 0.16em;
          text-transform: uppercase;
          color: rgba(196,181,253,0.85);
          z-index: 3;
          transition: opacity 400ms ease;
        }

        /* ═══ RESPONSIVE — MOBILE-ONLY edits, desktop untouched ═══ */
        @media (max-width: 980px) {
          .hh-top {
            padding: 40px 24px 12px;
          }
          .hh-grid {
            grid-template-columns: 1fr;
            min-height: 0;
          }
          .hh-copy {
            padding: 24px 24px 8px;
            align-items: center;
            text-align: center;
          }
          .hh-copy > * {
            text-align: center !important;
            margin-left: auto;
            margin-right: auto;
          }
          .hh-quote {
            border-left: none;
            border-top: 2px solid rgba(167,139,250,0.55);
            padding: 18px 22px;
            text-align: center;
          }
          .hh-cta-row,
          .hh-trust {
            justify-content: center;
          }
          .hh-shot-col {
            padding: 0 16px 40px;
            justify-content: center;
          }
          .hh-shot-frame {
            animation: none;
            transform: none;
            max-width: 480px;
            width: 100%;
            margin: 0 auto;
          }
          .hh-shot-frame::before {
            background: linear-gradient(
              180deg,
              rgba(13,6,40,0.2) 0%,
              transparent 8%,
              transparent 92%,
              rgba(13,6,40,0.2) 100%
            );
          }
          .hh-shot-caption {
            right: 0;
          }
        }
        @media (max-width: 540px) {
          .hh-h1 { font-size: clamp(32px, 9vw, 44px); }
          .hh-h2 { font-size: clamp(22px, 6vw, 28px); }
          .hh-top { padding: 32px 18px 8px; }
          .hh-copy { padding: 18px 18px 4px; font-size: 15px; }
          .hh-shot-frame { max-width: 360px; }
        }
      


        /* ═══ FAMILY TREE — fully scoped, zero collisions ═══════════════ */
        .ft-section {
          position: relative;
          margin: 40px 20px;
          padding: 80px 48px;
          border-radius: 24px;
          background: rgba(255, 255, 255, 0.03);
          backdrop-filter: blur(20px);
          -webkit-backdrop-filter: blur(20px);
          border: 1px solid rgba(255, 255, 255, 0.1);
          box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .ft-container { max-width: 1280px; margin: 0 auto; }
        .ft-eyebrow {
          text-align: center;
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 12px;
          letter-spacing: 0.18em;
          text-transform: uppercase;
          color: rgba(139, 92, 246, 0.85);
          margin-bottom: 16px;
        }
        .ft-title {
          text-align: center;
          font-size: clamp(36px, 5vw, 56px);
          font-weight: 800;
          letter-spacing: -0.02em;
          line-height: 1.05;
          text-shadow: 0 2px 12px rgba(0,0,0,0.6);
          margin-bottom: 16px;
          color: #fff;
        }
        .ft-title-grad {
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
        }
        .ft-subtitle {
          text-align: center;
          font-size: 17px;
          color: rgba(255,255,255,0.7);
          max-width: 760px;
          margin: 0 auto 56px;
          line-height: 1.6;
          text-shadow: 0 1px 4px rgba(0,0,0,0.5);
        }

        /* ═══ SHELLS ════════════════════════════════════════════════════════ */
        .ft-shell {
          position: relative;
          padding: 28px 28px 24px;
          border-radius: 18px;
          border: 1px solid var(--shell-hue, rgba(255,255,255,0.15));
          background: linear-gradient(180deg, color-mix(in srgb, var(--shell-hue) 6%, transparent), transparent);
          margin: 0 auto;
        }
        .ft-shell .ft-shell { margin-top: 14px; }
        .ft-shell-innermost {
          background:
            radial-gradient(ellipse at top, rgba(139,92,246,0.06), transparent 60%),
            rgba(0,0,0,0.15);
        }
        .ft-shell-label {
          position: absolute;
          top: -10px;
          left: 24px;
          padding: 2px 10px;
          background: #0d0628;
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 11px;
          letter-spacing: 0.18em;
          color: var(--shell-hue, rgba(255,255,255,0.7));
          font-weight: 700;
          text-transform: uppercase;
          border-radius: 4px;
          border: 1px solid var(--shell-hue, rgba(255,255,255,0.2));
          text-decoration: none;
          display: inline-block;
          transition: background 200ms ease, transform 200ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 200ms ease;
          cursor: pointer;
        }
        .ft-shell-label:hover {
          background: color-mix(in srgb, var(--shell-hue) 18%, #0d0628);
          transform: translateY(-1px);
          box-shadow: 0 6px 18px color-mix(in srgb, var(--shell-hue) 28%, transparent);
        }
        .ft-shell-label-sub {
          font-family: 'Inter', sans-serif;
          color: rgba(255,255,255,0.55);
          font-weight: 500;
          margin-left: 8px;
          letter-spacing: 0.05em;
          text-transform: none;
        }

        /* ═══ AETHERION — umbrella over the shells + the outward AETHER pillar ═══ */
        .ft-aetherion {
          position: relative;
          padding: 30px 20px 22px;
          border-radius: 20px;
          border: 1px solid rgba(167,139,250,0.28);
          background:
            radial-gradient(ellipse at top, rgba(139,92,246,0.06), transparent 60%),
            linear-gradient(180deg, rgba(103,232,249,0.03), transparent 70%);
          margin: 0 auto;
        }
        .ft-aetherion-head {
          display: flex;
          align-items: baseline;
          flex-wrap: wrap;
          gap: 4px 12px;
          justify-content: center;
          text-align: center;
          margin-bottom: 22px;
        }
        .ft-aetherion-label {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 15px;
          font-weight: 800;
          letter-spacing: 0.28em;
          text-transform: uppercase;
          text-decoration: none;
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
          transition: opacity 200ms ease;
        }
        .ft-aetherion-label:hover { opacity: 0.8; }
        .ft-aetherion-sub {
          font-family: 'Inter', sans-serif;
          font-size: 12px;
          color: rgba(255,255,255,0.55);
          letter-spacing: 0.02em;
        }
        /* AETHER — the 4th pillar, reaching OUTWARD (not a concentric shell) */
        .ft-aether-out {
          display: flex;
          align-items: center;
          justify-content: space-between;
          gap: 14px;
          margin-top: 16px;
          padding: 16px 20px;
          border-radius: 14px;
          border: 1px dashed var(--shell-hue, rgba(110,231,183,0.6));
          background:
            linear-gradient(90deg, color-mix(in srgb, var(--shell-hue) 8%, transparent), transparent 70%);
          text-decoration: none;
          transition: transform 220ms cubic-bezier(0.22,1,0.36,1), border-color 200ms ease, box-shadow 200ms ease, background 200ms ease;
        }
        .ft-aether-out:hover {
          transform: translateY(-2px);
          border-style: solid;
          box-shadow: 0 10px 28px color-mix(in srgb, var(--shell-hue) 26%, transparent);
        }
        .ft-aether-out-main { display: flex; flex-direction: column; gap: 4px; text-align: left; min-width: 0; }
        .ft-aether-out-label {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 13px;
          font-weight: 700;
          letter-spacing: 0.18em;
          text-transform: uppercase;
          color: var(--shell-hue, rgba(110,231,183,0.95));
        }
        .ft-aether-out-reach {
          font-size: 12.5px;
          color: rgba(255,255,255,0.62);
          letter-spacing: 0.02em;
          line-height: 1.4;
        }
        .ft-aether-out-arrow {
          font-size: 20px;
          color: var(--shell-hue, rgba(110,231,183,0.95));
          line-height: 1;
          flex-shrink: 0;
          transition: transform 220ms cubic-bezier(0.22,1,0.36,1);
        }
        .ft-aether-out:hover .ft-aether-out-arrow { transform: translateX(5px); }

        /* ═══ GENESIS — encapsulating container card ═══════════════════════ */
        .ft-genesis {
          position: relative;
          padding: 24px 22px 22px;
          border-radius: 16px;
          border: 1px solid rgba(167,139,250,0.28);
          background:
            linear-gradient(180deg, rgba(139,92,246,0.08) 0%, rgba(6,182,212,0.025) 60%, transparent 100%);
          box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
        }
        .ft-genesis-header {
          text-align: center;
          margin-bottom: 22px;
          padding-bottom: 18px;
          border-bottom: 1px solid rgba(167,139,250,0.16);
        }
        .ft-genesis-eyebrow {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 10px;
          letter-spacing: 0.22em;
          text-transform: uppercase;
          color: rgba(255,255,255,0.5);
          margin-bottom: 6px;
        }
        .ft-genesis-name {
          font-size: 26px;
          font-weight: 800;
          letter-spacing: 0.18em;
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
          line-height: 1;
          margin-bottom: 8px;
        }
        .ft-genesis-tagline {
          font-size: 12px;
          color: rgba(255,255,255,0.6);
          font-weight: 500;
          letter-spacing: 0.04em;
        }

        /* ═══ FLOW ═════════════════════════════════════════════════════════ */
        .ft-flow {
          display: grid;
          grid-template-columns: auto auto 1fr;
          align-items: center;
          gap: 16px;
        }
        .ft-flow-card {
          padding: 20px 22px;
          border-radius: 14px;
          text-align: center;
          min-width: 140px;
          border: 1px solid rgba(255,255,255,0.12);
          background: rgba(255,255,255,0.03);
          backdrop-filter: blur(12px);
          -webkit-backdrop-filter: blur(12px);
        }
        .ft-flow-genesis {
          background:
            linear-gradient(135deg, rgba(139,92,246,0.18) 0%, rgba(6,182,212,0.10) 100%),
            rgba(255,255,255,0.03);
          border-color: rgba(255,255,255,0.18);
          box-shadow: 0 0 40px rgba(139,92,246,0.18);
          min-width: 160px;
        }
        .ft-flow-aria {
          background:
            radial-gradient(ellipse at top, rgba(139,92,246,0.20), transparent 70%),
            rgba(255,255,255,0.03);
          border-color: rgba(139,92,246,0.35);
          box-shadow: 0 0 30px rgba(139,92,246,0.18);
        }
        .ft-flow-label {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 10px;
          letter-spacing: 0.22em;
          text-transform: uppercase;
          color: rgba(255,255,255,0.45);
          margin-bottom: 6px;
        }
        .ft-flow-label-aria { color: rgba(167,139,250,0.85); }
        .ft-flow-name {
          font-size: 22px;
          font-weight: 800;
          letter-spacing: 0.16em;
          margin-bottom: 6px;
          color: #fff;
        }
        .ft-flow-name-grad {
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
          font-size: 24px;
        }
        .ft-flow-tagline {
          font-size: 11.5px;
          color: rgba(255,255,255,0.7);
          font-weight: 500;
          line-height: 1.4;
        }
        .ft-flow-arrow {
          font-size: 32px;
          color: rgba(167,139,250,0.65);
          font-weight: 300;
          padding: 0 4px;
          user-select: none;
        }
        .ft-flow-arrow-fan { color: rgba(103,232,249,0.65); }

        /* ═══ SYSTEM NODES — static, no interaction ════════════════════════ */
        .ft-flow-systems { padding-left: 8px; }
        .ft-systems-grid {
          display: grid;
          grid-template-columns: repeat(4, 1fr);
          gap: 8px;
        }
        .ft-node {
          position: relative;
          padding: 10px 12px 10px;
          border-radius: 10px;
          border: 1px solid rgba(255,255,255,0.10);
          background:
            radial-gradient(ellipse at top, rgba(139,92,246,0.06), transparent 65%),
            rgba(255,255,255,0.025);
          text-align: left;
          overflow: hidden;
          transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1),
                      border-color 240ms ease,
                      background 240ms ease,
                      box-shadow 240ms ease;
        }
        .ft-node::before {
          content: '';
          position: absolute;
          top: 0; left: 0; right: 0;
          height: 1px;
          background: linear-gradient(90deg, transparent, rgba(139,92,246,0.6), transparent);
          opacity: 0;
          transition: opacity 240ms ease;
        }
        .ft-node:hover {
          transform: translateY(-2px);
          border-color: rgba(167,139,250,0.45);
          background:
            radial-gradient(ellipse at top, rgba(139,92,246,0.14), transparent 65%),
            rgba(255,255,255,0.04);
          box-shadow: 0 10px 28px rgba(139,92,246,0.22);
        }
        .ft-node:hover::before { opacity: 1; }
        .ft-node-highlighted {
          border-color: rgba(167,139,250,0.7);
          background: rgba(139,92,246,0.12);
          box-shadow: 0 0 24px rgba(139,92,246,0.30);
        }
        .ft-node-name {
          font-size: 12.5px;
          font-weight: 700;
          letter-spacing: -0.005em;
          color: #fff;
          margin-bottom: 2px;
          line-height: 1.15;
        }
        .ft-node-agent {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 10px;
          color: rgba(167,139,250,0.85);
          font-weight: 500;
          line-height: 1.3;
        }

        /* Explore card — distinct from system bubbles, IS interactive */
        .ft-node-explore {
          display: flex;
          align-items: center;
          gap: 10px;
          padding: 10px 12px;
          border-radius: 10px;
          border: 1px dashed rgba(167,139,250,0.5);
          background:
            radial-gradient(ellipse at top right, rgba(139,92,246,0.10), transparent 60%),
            rgba(255,255,255,0.02);
          color: inherit;
          text-decoration: none;
          transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
                      border-color 220ms ease,
                      background 220ms ease,
                      box-shadow 220ms ease;
        }
        .ft-node-explore:hover {
          transform: translateY(-2px);
          border-color: rgba(167,139,250,0.85);
          border-style: solid;
          background: rgba(139,92,246,0.10);
          box-shadow: 0 8px 22px rgba(139,92,246,0.22);
        }
        .ft-node-explore-icon {
          width: 26px;
          height: 26px;
          flex-shrink: 0;
          display: flex;
          align-items: center;
          justify-content: center;
          border-radius: 50%;
          border: 1px solid rgba(167,139,250,0.55);
          background: rgba(139,92,246,0.12);
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 14px;
          font-weight: 700;
          color: rgba(167,139,250,1);
          line-height: 1;
        }
        .ft-node-explore-text {
          display: flex;
          flex-direction: column;
          min-width: 0;
        }
        .ft-node-explore-name {
          font-size: 12.5px;
          font-weight: 700;
          color: #fff;
          line-height: 1.15;
          margin-bottom: 2px;
        }
        .ft-node-explore-sub {
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 10px;
          color: rgba(167,139,250,0.85);
          line-height: 1.3;
        }

        /* ═══ FLOOR ════════════════════════════════════════════════════════ */
        .ft-floor {
          margin: 40px auto 0;
          text-align: center;
          font-size: 13.5px;
          color: rgba(255,255,255,0.55);
          max-width: 760px;
          line-height: 1.7;
        }
        .ft-floor-accent {
          color: rgba(167,139,250,0.95);
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 12.5px;
          margin-left: 6px;
        }

        /* ═══ RESPONSIVE ═══════════════════════════════════════════════════ */
        @media (max-width: 1100px) {
          .ft-flow {
            grid-template-columns: 1fr;
            gap: 12px;
            justify-items: center;
          }
          .ft-flow-arrow { transform: rotate(90deg); }
          .ft-flow-systems { width: 100%; padding-left: 0; }
          .ft-systems-grid { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 720px) {
          .ft-section { padding: 56px 22px; }
          .ft-shell { padding: 22px 18px 18px; }
          .ft-shell-label { left: 14px; font-size: 10px; }
          .ft-genesis { padding: 22px 16px 18px; }
          .ft-genesis-name { font-size: 22px; }
          .ft-systems-grid { grid-template-columns: repeat(2, 1fr); }
        }
      


        /* Hero Section */
        .hero {
          padding: var(--space-4xl) 0;
          background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
        }

        .hero-content {
          max-width: 1200px;
          margin: 0 auto;
          text-align: center;
        }

        .hero-title {
          font-size: var(--font-size-6xl);
          font-weight: 800;
          color: var(--color-text-primary);
          margin-bottom: var(--space-md);
          line-height: 1.1;
        }

        .hero-headline-mark {
          background: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
          letter-spacing: 0.02em;
          font-weight: 900;
        }

        .hero-subtitle {
          background: var(--gradient-primary);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
        }

        .hero-acronym {
          font-size: 15px;
          letter-spacing: 3px;
          text-transform: uppercase;
          color: rgba(139, 92, 246, 0.7);
          margin-top: 8px;
          margin-bottom: 24px;
          font-weight: 500;
        }

        .hero-description {
          font-size: var(--font-size-xl);
          color: var(--color-text-secondary);
          margin-bottom: var(--space-xl);
          line-height: var(--line-height-relaxed);
        }

        .hero-quote {
          font-size: var(--font-size-lg);
          font-style: italic;
          color: var(--color-accent-primary);
          margin: var(--space-xl) auto;
          padding: var(--space-lg);
          max-width: 600px;
          border-left: 3px solid var(--color-accent-primary);
          background: rgba(var(--color-accent-primary-rgb), 0.05);
          border-radius: var(--radius-md);
        }

        .hero-quote cite {
          display: block;
          font-size: var(--font-size-sm);
          color: var(--color-text-tertiary);
          margin-top: var(--space-sm);
          font-style: normal;
        }

        .hero-cta {
          display: flex;
          gap: var(--space-md);
          justify-content: center;
          margin-bottom: var(--space-lg);
        }

        .hero-trust {
          font-size: var(--font-size-sm);
        }

        .hero-trust p {
          color: #fff;
          margin: 0;
        }

        /* Stats Section */
        /* Ticker Strip */
        .ticker-strip {
          margin: 40px 20px;
          padding: 24px 0;
          border-radius: 16px;
          overflow: hidden;
          position: relative;
        }

        .ticker-track {
          display: flex;
          width: fit-content;
          animation: scroll 30s linear infinite;
        }

        .ticker-content {
          display: flex;
          align-items: center;
          gap: 32px;
          padding: 0 16px;
          white-space: nowrap;
        }

        .ticker-item {
          font-size: 18px;
          font-weight: 600;
          color: #fff;
          text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
        }

        .ticker-separator {
          color: rgba(139, 92, 246, 0.6);
          font-size: 20px;
        }

        @keyframes scroll {
          0% {
            transform: translateX(0);
          }
          100% {
            transform: translateX(-50%);
          }
        }

        .ticker-strip:hover .ticker-track {
          animation-play-state: paused;
        }

        /* Features Section */
        /* Fractal Section */
        .fractal-section {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }

        .fractal-container {
          max-width: 1200px;
          margin: 0 auto;
        }

        .fractal-intro {
          text-align: center;
          margin-bottom: 48px;
        }

        /* GLOBAL — restored to original values (used by Testimonials, ARIA Advantage,
           CTA, Why ARIA — every section h2 on the home page). Do NOT modify here.
           Scope changes per-section via descendant selectors below (e.g. .fractal-section .section-title). */
        .section-title {
          font-size: 56px;
          font-weight: 800;
          color: #fff;
          margin-bottom: 16px;
          text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
        }

        .section-subtitle {
          font-size: 22px;
          color: rgba(255, 255, 255, 0.8);
          margin-bottom: 24px;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
        }

        /* WHY ARIA — layout C: centered header + 2 paragraph cards + punch */
        .why-aria-header {
          text-align: center;
          max-width: 820px;
          margin: 0 auto 48px;
        }

        .why-aria-eyebrow {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 12px;
          font-weight: 700;
          letter-spacing: 0.24em;
          text-transform: uppercase;
          color: rgba(167, 139, 250, 0.75);
          margin-bottom: 22px;
        }

        .why-aria-kicker {
          font-size: clamp(28px, 4vw, 42px);
          font-weight: 800;
          line-height: 1.2;
          letter-spacing: -0.02em;
          margin: 0 0 22px;
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
          filter: drop-shadow(0 0 32px rgba(139, 92, 246, 0.35));
        }

        .why-aria-sub {
          font-size: 18px;
          line-height: 1.6;
          color: rgba(255, 255, 255, 0.78);
          margin: 0;
        }

        .why-aria-grid {
          display: grid;
          grid-template-columns: repeat(2, 1fr);
          gap: 24px;
          max-width: 1100px;
          margin: 0 auto 48px;
          padding: 0 32px;
        }

        .why-aria-card {
          position: relative;
          padding: 32px 30px;
          border-radius: 18px;
          background:
            radial-gradient(ellipse at top, rgba(139, 92, 246, 0.10), transparent 65%),
            rgba(255, 255, 255, 0.025);
          border: 1px solid rgba(255, 255, 255, 0.08);
          transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1), border-color 280ms, box-shadow 280ms;
          overflow: hidden;
        }

        .why-aria-card::before {
          content: '';
          position: absolute;
          top: 0; left: 0; right: 0;
          height: 1px;
          background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.6), transparent);
          opacity: 0;
          transition: opacity 280ms;
        }

        .why-aria-card:hover {
          transform: translateY(-4px);
          border-color: rgba(167, 139, 250, 0.45);
          box-shadow: 0 18px 48px rgba(139, 92, 246, 0.22);
        }

        .why-aria-card:hover::before { opacity: 1; }

        .why-aria-card p {
          font-size: 16px;
          line-height: 1.75;
          color: rgba(255, 255, 255, 0.82);
          margin: 0;
          text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
        }

        .why-aria-punch {
          text-align: center;
          font-size: clamp(22px, 2.6vw, 28px);
          font-weight: 800;
          line-height: 1.4;
          letter-spacing: -0.01em;
          max-width: 820px;
          margin: 0 auto 24px;
          background: linear-gradient(135deg, #fff 0%, rgba(167, 139, 250, 0.85) 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
        }

        .tabs-hint {
          text-align: center;
          font-family: 'JetBrains Mono', ui-monospace, monospace;
          font-size: 11px;
          color: rgba(167, 139, 250, 0.7);
          margin-top: 32px;
          letter-spacing: 0.18em;
          text-transform: uppercase;
          font-style: normal;
          font-weight: 600;
        }

        /* Fractal Tabs */
        .fractal-tabs {
          display: flex;
          gap: 12px;
          margin-bottom: 32px;
          justify-content: center;
          flex-wrap: wrap;
        }

        .fractal-tab {
          position: relative;
          background: rgba(255, 255, 255, 0.025);
          border: 1px solid rgba(255, 255, 255, 0.08);
          border-radius: 999px;
          padding: 10px 18px;
          display: inline-flex;
          align-items: center;
          cursor: pointer;
          transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1), border-color 240ms, background 240ms, box-shadow 240ms;
          color: rgba(255, 255, 255, 0.7);
        }

        .tab-badge {
          position: absolute;
          top: -8px;
          right: -10px;
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 9px;
          font-weight: 800;
          letter-spacing: 0.1em;
          text-transform: uppercase;
          color: #fff;
          background: linear-gradient(135deg, rgba(139, 92, 246, 0.95), rgba(167, 139, 250, 0.95));
          padding: 3px 7px;
          border-radius: 999px;
          border: 1px solid rgba(167, 139, 250, 0.6);
          box-shadow: 0 4px 12px rgba(139, 92, 246, 0.45);
          animation: tab-badge-pulse 2.4s ease-in-out infinite;
          pointer-events: none;
        }

        @keyframes tab-badge-pulse {
          0%, 100% { box-shadow: 0 4px 12px rgba(139, 92, 246, 0.45); }
          50% { box-shadow: 0 4px 18px rgba(139, 92, 246, 0.75); }
        }

        .fractal-tab:hover {
          background: rgba(255, 255, 255, 0.05);
          border-color: rgba(167, 139, 250, 0.3);
          transform: translateY(-2px);
        }

        .fractal-tab.active {
          background:
            radial-gradient(ellipse at top, rgba(139, 92, 246, 0.22), transparent 70%),
            rgba(167, 139, 250, 0.08);
          border-color: rgba(167, 139, 250, 0.55);
          color: #fff;
          box-shadow: 0 8px 22px rgba(139, 92, 246, 0.22);
        }

        .tab-label {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 12px;
          font-weight: 700;
          letter-spacing: 0.08em;
          text-transform: uppercase;
        }

        /* Fractal Content */
        .fractal-content-area {
          min-height: 300px;
        }

        .fractal-content {
          padding: 48px;
          border-radius: 16px;
          background: transparent;
        }

        /* Show only active tab, hide others (but keep in DOM for SEO) */
        .fractal-content.hidden {
          display: none;
        }

        .fractal-content.active {
          display: block;
          animation: fadeIn 0.4s ease-in-out;
          border: none;
        }

        @keyframes fadeIn {
          from {
            opacity: 0;
            transform: translateY(10px);
          }
          to {
            opacity: 1;
            transform: translateY(0);
          }
        }

        .content-title {
          font-size: clamp(28px, 3.5vw, 40px);
          font-weight: 800;
          color: #fff;
          margin-bottom: 28px;
          letter-spacing: -0.015em;
          line-height: 1.1;
          text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
        }

        .content-body {
          font-size: 16px;
          line-height: 1.75;
          color: rgba(255, 255, 255, 0.78);
        }

        /* Structured Content Styles */
        .content-structured {
          display: flex;
          flex-direction: column;
          gap: 32px;
        }

        .intro-paragraph {
          font-size: 17px;
          line-height: 1.7;
          color: rgba(255, 255, 255, 0.9);
          margin-bottom: 16px;
          letter-spacing: -0.005em;
          text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        /* Problem Items */
        .problem-item {
          display: flex;
          gap: 24px;
          align-items: flex-start;
        }

        .problem-number {
          font-size: 48px;
          font-weight: 800;
          color: rgba(139, 92, 246, 0.3);
          line-height: 1;
          min-width: 60px;
        }

        .problem-details h4 {
          font-size: 22px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 8px;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
        }

        .problem-details p {
          font-size: 16px;
          line-height: 1.7;
          color: rgba(255, 255, 255, 0.8);
          text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        /* Memory Features */
        .memory-feature {
          display: flex;
          gap: 20px;
          align-items: flex-start;
        }

        .feature-emoji {
          font-size: 40px;
          min-width: 50px;
        }

        .memory-feature h4 {
          font-size: 20px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 8px;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
        }

        .memory-feature p {
          font-size: 16px;
          line-height: 1.7;
          color: rgba(255, 255, 255, 0.8);
          text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        /* Security Layers */
        .security-layer {
          display: flex;
          gap: 20px;
          align-items: flex-start;
        }

        .layer-badge {
          background: rgba(139, 92, 246, 0.3);
          border: 1px solid rgba(139, 92, 246, 0.5);
          border-radius: 8px;
          padding: 8px 16px;
          font-size: 14px;
          font-weight: 700;
          color: #fff;
          white-space: nowrap;
          text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
        }

        .security-layer h4 {
          font-size: 20px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 8px;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
        }

        .security-layer p {
          font-size: 16px;
          line-height: 1.7;
          color: rgba(255, 255, 255, 0.8);
          text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        /* Safety Sections */
        .safety-section {
          margin-bottom: 56px;
        }

        .section-header {
          position: relative;
          font-size: 22px;
          font-weight: 800;
          color: #fff;
          margin: 0 0 28px;
          padding-bottom: 16px;
          letter-spacing: -0.01em;
          border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .section-header::after {
          content: '';
          position: absolute;
          bottom: -1px;
          left: 0;
          width: 60px;
          height: 2px;
          background: linear-gradient(90deg, #a78bfa 0%, #67e8f9 100%);
          border-radius: 2px;
        }

        /* Engine Categories — locked card pattern */
        .engine-category {
          position: relative;
          padding: 28px 26px;
          border-radius: 18px;
          background:
            radial-gradient(ellipse at top, rgba(139, 92, 246, 0.10), transparent 65%),
            rgba(255, 255, 255, 0.025);
          border: 1px solid rgba(255, 255, 255, 0.08);
          transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1), border-color 280ms, box-shadow 280ms;
          overflow: hidden;
        }

        .engine-category::before {
          content: '';
          position: absolute;
          top: 0; left: 0; right: 0;
          height: 1px;
          background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.6), transparent);
          opacity: 0;
          transition: opacity 280ms;
        }

        .engine-category:hover {
          transform: translateY(-4px);
          border-color: rgba(167, 139, 250, 0.45);
          box-shadow: 0 18px 48px rgba(139, 92, 246, 0.22);
        }

        .engine-category:hover::before { opacity: 1; }

        /* LLM Comparison Table */
        .llm-comparison-table {
          margin: 40px 0;
          overflow-x: auto;
        }

        .table-updated {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 11px;
          font-weight: 700;
          letter-spacing: 0.18em;
          text-transform: uppercase;
          color: rgba(167, 139, 250, 0.65);
          margin: 0 0 14px;
          text-align: right;
        }

        .llm-comparison-table table {
          width: 100%;
          border-collapse: collapse;
          background: rgba(255, 255, 255, 0.03);
          border-radius: 12px;
          overflow: hidden;
        }

        .llm-comparison-table th {
          background: rgba(139, 92, 246, 0.2);
          padding: 16px;
          text-align: left;
          font-weight: 700;
          font-size: 14px;
          text-transform: uppercase;
          letter-spacing: 0.5px;
          border-bottom: 2px solid rgba(139, 92, 246, 0.4);
        }

        .llm-comparison-table td {
          padding: 14px 16px;
          border-bottom: 1px solid rgba(255, 255, 255, 0.05);
          font-size: 15px;
        }

        .llm-comparison-table tbody tr:hover {
          background: rgba(255, 255, 255, 0.05);
        }

        .llm-comparison-table .excellent {
          color: #10b981;
          font-weight: 600;
        }

        .llm-comparison-table .good {
          color: #8b5cf6;
          font-weight: 600;
        }

        .llm-comparison-table .moderate {
          color: #f59e0b;
          font-weight: 600;
        }

        .llm-comparison-table .table-note {
          margin-top: 12px;
          font-size: 13px;
          color: rgba(255, 255, 255, 0.6);
          font-style: italic;
        }

        /* Warning Card — red theme variant of locked pattern */
        .engine-category.warning {
          background:
            radial-gradient(ellipse at top, rgba(239, 68, 68, 0.12), transparent 65%),
            rgba(255, 255, 255, 0.025);
          border-color: rgba(239, 68, 68, 0.3);
        }

        .engine-category.warning::before {
          background: linear-gradient(90deg, transparent, rgba(239, 68, 68, 0.6), transparent);
        }

        .engine-category.warning:hover {
          border-color: rgba(239, 68, 68, 0.5);
          box-shadow: 0 18px 48px rgba(239, 68, 68, 0.22);
        }

        .engine-category.warning h4::after {
          background: linear-gradient(90deg, #EF4444 0%, rgba(239, 68, 68, 0.2) 100%);
        }

        .engine-category h4 {
          position: relative;
          font-size: 18px;
          font-weight: 800;
          color: #fff;
          margin: 0 0 16px;
          padding-bottom: 14px;
          display: flex;
          align-items: center;
          gap: 12px;
          flex-wrap: wrap;
          letter-spacing: -0.01em;
          line-height: 1.3;
        }

        .engine-category h4::after {
          content: '';
          position: absolute;
          bottom: 0;
          left: 0;
          width: 28px;
          height: 2px;
          background: linear-gradient(90deg, #a78bfa 0%, #67e8f9 100%);
          border-radius: 2px;
        }

        .badge {
          background: rgba(139, 92, 246, 0.12);
          border: 1px solid rgba(139, 92, 246, 0.35);
          border-radius: 4px;
          padding: 4px 10px;
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 10.5px;
          font-weight: 700;
          letter-spacing: 0.14em;
          color: rgba(167, 139, 250, 0.95);
          text-transform: uppercase;
          white-space: nowrap;
        }

        .whitepaper-link {
          color: rgba(139, 92, 246, 0.9);
          text-decoration: underline;
          font-weight: 600;
          transition: color 0.2s;
        }

        .whitepaper-link:hover {
          color: rgba(139, 92, 246, 1);
        }

        .engine-category p {
          font-size: 14.5px;
          line-height: 1.75;
          color: rgba(255, 255, 255, 0.75);
          margin: 0;
        }

        .engine-category p + p {
          margin-top: 12px;
        }

        /* Use Case Grid */
        .usecase-grid {
          display: grid;
          grid-template-columns: repeat(2, 1fr);
          gap: 20px;
        }

        .usecase-card {
          padding: 24px;
          background: rgba(255, 255, 255, 0.03);
          border-radius: 12px;
          border: 1px solid rgba(255, 255, 255, 0.08);
          transition: all 0.3s;
        }

        .usecase-card:hover {
          background: rgba(255, 255, 255, 0.05);
          border-color: rgba(139, 92, 246, 0.3);
          transform: translateY(-2px);
        }

        .usecase-icon {
          font-size: 36px;
          margin-bottom: 12px;
        }

        .usecase-card h4 {
          font-size: 18px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 8px;
          text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
        }

        .usecase-card p {
          font-size: 14px;
          line-height: 1.6;
          color: rgba(255, 255, 255, 0.7);
          text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        /* Problem Section */
        .problem {
          padding: var(--space-4xl) 0;
          background: var(--color-bg-secondary);
        }

        .problem-content {
          max-width: 700px;
          margin: 0 auto;
          text-align: center;
        }


        /* ARIA Advantage Section */
        .aria-advantage {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }

        .advantage-container {
          max-width: 1200px;
          margin: 0 auto;
        }

        .advantage-header {
          text-align: center;
          max-width: 820px;
          margin: 0 auto 56px;
        }

        .advantage-eyebrow {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 12px;
          font-weight: 700;
          letter-spacing: 0.24em;
          text-transform: uppercase;
          color: rgba(167, 139, 250, 0.75);
          margin-bottom: 22px;
        }

        .advantage-kicker {
          font-size: clamp(36px, 5vw, 52px);
          font-weight: 800;
          line-height: 1.1;
          letter-spacing: -0.02em;
          margin: 0;
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
          filter: drop-shadow(0 0 32px rgba(139, 92, 246, 0.35));
        }

        .cost-comparison {
          display: grid;
          grid-template-columns: 1fr auto 1fr;
          gap: 48px;
          align-items: stretch;
          padding: 48px 40px;
          margin-bottom: 56px;
          border-radius: 20px;
        }

        .comparison-side {
          text-align: center;
          padding: 8px 16px;
        }

        .comparison-side h3 {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 12px;
          font-weight: 700;
          letter-spacing: 0.22em;
          text-transform: uppercase;
          margin: 0 0 24px;
        }

        .saas-model h3 {
          color: rgba(239, 68, 68, 0.85);
        }

        .aria-model h3 {
          color: rgba(167, 139, 250, 0.9);
        }

        .cost-amount {
          font-size: 30px;
          font-weight: 800;
          margin-bottom: 28px;
          line-height: 1.15;
          letter-spacing: -0.02em;
        }

        .saas-model .cost-amount {
          color: #ef4444;
          text-decoration: line-through;
          text-decoration-color: rgba(239, 68, 68, 0.4);
          text-decoration-thickness: 2px;
        }

        .aria-model .cost-amount {
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
          filter: drop-shadow(0 0 24px rgba(139, 92, 246, 0.4));
        }

        .cost-details {
          text-align: left;
          font-size: 15px;
          line-height: 1.7;
          color: #fff;
          display: flex;
          flex-direction: column;
          gap: 10px;
          max-width: 280px;
          margin: 0 auto;
        }

        .cost-details p {
          margin: 0;
          padding-left: 22px;
          position: relative;
          color: #fff;
        }

        .cost-details p::before {
          content: '';
          position: absolute;
          left: 0;
          top: 9px;
          width: 6px;
          height: 6px;
          border-radius: 50%;
        }

        .saas-model .cost-details p::before {
          background: rgba(239, 68, 68, 0.7);
        }

        .aria-model .cost-details p::before {
          background: linear-gradient(135deg, #a78bfa 0%, #67e8f9 100%);
          box-shadow: 0 0 8px rgba(139, 92, 246, 0.5);
        }

        .comparison-divider {
          font-family: 'JetBrains Mono', 'Courier New', monospace;
          font-size: 14px;
          font-weight: 700;
          letter-spacing: 0.2em;
          color: rgba(255, 255, 255, 0.4);
          align-self: center;
        }

        .differentiators {
          display: grid;
          grid-template-columns: repeat(3, 1fr);
          gap: 24px;
        }

        @media (max-width: 968px) {
          .cost-comparison {
            grid-template-columns: 1fr;
            gap: 24px;
          }

          .comparison-divider {
            transform: rotate(90deg);
          }

          .differentiators {
            grid-template-columns: 1fr;
          }
        }

        /* CTA Section */
        .cta {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }

        .cta-container {
          max-width: 1200px;
          margin: 0 auto;
          text-align: center;
        }

        .cta-subtitle {
          font-size: 22px;
          color: rgba(255, 255, 255, 0.8);
          margin-bottom: 48px;
          text-align: center;
        }

        .cta-cards {
          display: grid;
          grid-template-columns: repeat(3, 1fr);
          gap: 24px;
          margin-bottom: 48px;
        }

        .cta-card {
          padding: 32px 24px;
          border-radius: 16px;
          text-align: center;
        }

        .cta-card-icon {
          font-size: 48px;
          margin-bottom: 16px;
        }

        .cta-card h3 {
          font-size: 20px;
          font-weight: 700;
          margin-bottom: 12px;
          color: #fff;
        }

        .cta-card p {
          font-size: 15px;
          color: rgba(255, 255, 255, 0.8);
          line-height: 1.6;
        }

        .cta-buttons {
          display: flex;
          gap: var(--space-md);
          justify-content: center;
        }

        /* Testimonials */
        .testimonials-section {
          padding: var(--space-3xl) var(--space-xl);
        }

        .testimonials-container {
          max-width: 1200px;
          margin: 0 auto;
          text-align: center;
        }

        .testimonials-section .section-subtitle {
          text-align: center;
          color: rgba(255,255,255,0.5);
          margin-bottom: var(--space-2xl);
          font-size: 1.1rem;
        }

        .testimonial-ticker {
          overflow: hidden;
          position: relative;
          margin: 0 -var(--space-xl);
          mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
          -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
        }

        .testimonial-track {
          display: flex;
          width: fit-content;
          animation: testimonialScroll 45s linear infinite;
        }

        .testimonial-ticker:hover .testimonial-track {
          animation-play-state: paused;
        }

        .testimonial-track-inner {
          display: flex;
          gap: 20px;
          padding: 0 10px;
        }

        @keyframes testimonialScroll {
          0% { transform: translateX(0); }
          100% { transform: translateX(-50%); }
        }

        .testimonial-card {
          background: rgba(255,255,255,0.03);
          border: 1px solid rgba(255,255,255,0.06);
          border-radius: 16px;
          padding: 24px;
          backdrop-filter: blur(20px);
          transition: border-color 0.3s;
          width: 360px;
          min-width: 360px;
          flex-shrink: 0;
        }

        .testimonial-card:hover {
          border-color: rgba(255,255,255,0.12);
        }

        .testimonial-card.featured {
          border-color: rgba(139, 92, 246, 0.4);
        }

        .testimonial-card.featured:hover {
          border-color: rgba(139, 92, 246, 0.6);
        }

        .testimonial-stars {
          color: #F59E0B;
          font-size: 1.1rem;
          margin-bottom: var(--space-sm);
          letter-spacing: 2px;
        }

        .testimonial-content {
          color: rgba(255,255,255,0.8);
          font-size: 0.95rem;
          line-height: 1.7;
          margin: 0 0 var(--space-lg) 0;
          font-style: italic;
        }

        .testimonial-author {
          display: flex;
          align-items: center;
          gap: var(--space-sm);
          flex-wrap: wrap;
        }

        .testimonial-avatar {
          width: 40px;
          height: 40px;
          border-radius: 50%;
          background: linear-gradient(135deg, rgba(139,92,246,0.3), rgba(59,130,246,0.3));
          border: 1px solid rgba(139,92,246,0.3);
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 0.75rem;
          font-weight: 700;
          color: rgba(255,255,255,0.8);
          flex-shrink: 0;
        }

        .testimonial-info {
          display: flex;
          flex-direction: column;
          flex: 1;
          min-width: 0;
        }

        .testimonial-info strong {
          color: rgba(255,255,255,0.9);
          font-size: 0.9rem;
        }

        .testimonial-info span {
          color: rgba(255,255,255,0.4);
          font-size: 0.8rem;
        }

        .testimonial-agent-badge {
          font-size: 0.7rem;
          padding: 3px 10px;
          border-radius: 20px;
          background: rgba(139,92,246,0.15);
          border: 1px solid rgba(139,92,246,0.3);
          color: rgba(139,92,246,0.9);
          white-space: nowrap;
        }

        @media (max-width: 640px) {
          .testimonial-card {
            width: 300px;
            min-width: 300px;
          }
        }

        /* Testimonial Submit */
        .testimonial-submit-area {
          margin-top: var(--space-2xl);
          display: flex;
          justify-content: center;
        }

        .testimonial-submit-btn {
          padding: 12px 32px;
          border-radius: 12px;
          border: 1px solid rgba(139,92,246,0.3);
          background: rgba(139,92,246,0.08);
          color: rgba(139,92,246,0.9);
          font-size: 1rem;
          cursor: pointer;
          transition: all 0.3s;
        }
        .testimonial-submit-btn:hover {
          background: rgba(139,92,246,0.15);
          border-color: rgba(139,92,246,0.5);
          transform: translateY(-2px);
        }

        .testimonial-success {
          padding: 16px 32px;
          border-radius: 12px;
          border: 1px solid rgba(16,185,129,0.3);
          background: rgba(16,185,129,0.08);
          color: rgba(16,185,129,0.9);
          font-size: 0.95rem;
        }

        .testimonial-form {
          width: 100%;
          max-width: 640px;
          padding: var(--space-xl);
          border-radius: 16px;
          background: rgba(255,255,255,0.03);
          border: 1px solid rgba(255,255,255,0.08);
          backdrop-filter: blur(20px);
        }

        .testimonial-form h3 {
          color: rgba(255,255,255,0.9);
          margin: 0 0 var(--space-lg) 0;
          font-size: 1.1rem;
        }

        .tf-row {
          display: flex;
          gap: 12px;
          margin-bottom: 12px;
        }

        .testimonial-form input,
        .testimonial-form select,
        .testimonial-form textarea {
          flex: 1;
          padding: 10px 14px;
          border-radius: 8px;
          border: 1px solid rgba(255,255,255,0.1);
          background: rgba(255,255,255,0.04);
          color: rgba(255,255,255,0.9);
          font-size: 0.9rem;
          font-family: inherit;
          outline: none;
          transition: border-color 0.2s;
        }
        .testimonial-form input:focus,
        .testimonial-form select:focus,
        .testimonial-form textarea:focus {
          border-color: rgba(139,92,246,0.4);
        }
        .testimonial-form select { cursor: pointer; }
        .testimonial-form select option { background: #1a1a2e; }
        .testimonial-form textarea { resize: vertical; min-height: 80px; }

        .tf-rating {
          display: flex;
          gap: 4px;
          margin-bottom: 12px;
        }
        .tf-star {
          background: none;
          border: none;
          font-size: 1.5rem;
          cursor: pointer;
          color: rgba(255,255,255,0.15);
          transition: color 0.15s;
          padding: 2px;
        }
        .tf-star.active { color: #F59E0B; }
        .tf-star:hover { color: #F59E0B; }

        .tf-footer {
          display: flex;
          align-items: center;
          gap: 12px;
          margin-top: 12px;
          flex-wrap: wrap;
        }
        .tf-chars { font-size: 0.75rem; color: rgba(255,255,255,0.3); }
        .tf-error { font-size: 0.8rem; color: #EF4444; }
        .tf-actions { margin-left: auto; display: flex; gap: 8px; }

        .tf-cancel {
          padding: 8px 20px;
          border-radius: 8px;
          border: 1px solid rgba(255,255,255,0.1);
          background: transparent;
          color: rgba(255,255,255,0.5);
          cursor: pointer;
          font-size: 0.85rem;
        }
        .tf-cancel:hover { color: rgba(255,255,255,0.8); }

        .tf-submit {
          padding: 8px 24px;
          border-radius: 8px;
          border: 1px solid rgba(139,92,246,0.4);
          background: rgba(139,92,246,0.15);
          color: rgba(139,92,246,0.9);
          cursor: pointer;
          font-size: 0.85rem;
          font-weight: 600;
          transition: all 0.2s;
        }
        .tf-submit:hover { background: rgba(139,92,246,0.25); }
        .tf-submit:disabled { opacity: 0.5; cursor: not-allowed; }

        @media (max-width: 640px) {
          .tf-row { flex-direction: column; }
          .tf-actions { margin-left: 0; width: 100%; }
          .tf-submit { flex: 1; }
        }

        /* Footer */
        .footer {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }

        .footer-card {
          max-width: 1200px;
          margin: 0 auto;
        }

        .footer-content {
          display: grid;
          grid-template-columns: repeat(5, 1fr);
          gap: 48px;
          margin-bottom: 48px;
        }

        .footer-section h3 {
          font-size: 24px;
          font-weight: 800;
          margin-bottom: 8px;
          background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
        }

        .footer-tagline {
          font-size: 14px;
          color: rgba(255, 255, 255, 0.6);
        }

        .footer-section h4 {
          font-size: 16px;
          font-weight: 700;
          margin-bottom: 16px;
          color: #fff;
        }

        .footer-links {
          list-style: none;
          padding: 0;
          margin: 0;
        }

        .footer-links li {
          margin-bottom: 12px;
        }

        .footer-links a {
          color: rgba(255, 255, 255, 0.7);
          text-decoration: none;
          font-size: 15px;
          transition: color 0.2s;
        }

        .footer-links a:hover {
          color: #8b5cf6;
        }

        .footer-bottom {
          text-align: center;
          padding-top: 32px;
          border-top: 1px solid rgba(255, 255, 255, 0.1);
          color: rgba(255, 255, 255, 0.5);
          font-size: 14px;
        }

        @media (max-width: 968px) {
          .footer-content {
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
          }

          .cta-cards {
            grid-template-columns: 1fr;
          }
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
          .hero-title {
            font-size: var(--font-size-4xl);
          }

          .hero-cta {
            flex-direction: column;
          }

          .ticker-item {
            font-size: 14px;
          }

          .section-title {
            font-size: 36px;
          }

          .why-aria-grid {
            grid-template-columns: 1fr;
            padding: 0 16px;
          }

          .why-aria-card {
            padding: 26px 22px;
          }

          .why-aria-card p {
            font-size: 15px;
          }

          .advantage-kicker {
            font-size: 32px;
          }

          .differentiators {
            grid-template-columns: 1fr;
          }

          .fractal-tabs {
            flex-direction: column;
            align-items: stretch;
          }

          .fractal-tab {
            justify-content: center;
          }

          .fractal-content {
            padding: 32px 24px;
          }

          .content-title {
            font-size: 28px;
          }

          .problem-item {
            flex-direction: column;
            gap: 12px;
          }

          .problem-number {
            font-size: 36px;
          }

          .usecase-grid {
            grid-template-columns: 1fr;
          }

          .security-layer,
          .memory-feature {
            flex-direction: column;
            gap: 12px;
          }

          .cta-buttons {
            flex-direction: column;
          }
        }

        /* Cosmic Page Layout */
        .cosmic-page {
          position: relative;
          min-height: 100vh;
          overflow-x: hidden;
        }

        .content-layer {
          position: relative;
          z-index: 10;
          padding: 0;
        }

        /* Glassmorphism Effect */
        .glass {
          background: rgba(255, 255, 255, 0.03);
          backdrop-filter: blur(20px);
          border: 1px solid rgba(255, 255, 255, 0.1);
          box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .hero.glass {
          margin: 20px;
          border-radius: 24px;
          padding: 80px 0;
        }

        .hero-title, .hero-subtitle, .hero-description, .hero-quote {
          color: #fff;
          text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
        }

        .hero-quote {
          background: rgba(139, 92, 246, 0.1);
          border-color: rgba(139, 92, 246, 0.3);
        }