.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;
          }
        }
      


        .cosmic-page {
          position: relative;
          min-height: 100vh;
          overflow-x: hidden;
        }
        .content-layer {
          position: relative;
          z-index: 10;
          padding: 0;
        }
        .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 */
        .aff-hero {
          margin: 20px;
          padding: 100px 0 80px;
          border-radius: 24px;
          text-align: center;
        }
        .hero-badge {
          display: inline-block;
          padding: 8px 20px;
          background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(6, 182, 212, 0.3));
          border: 1px solid rgba(139, 92, 246, 0.4);
          border-radius: 9999px;
          font-size: 13px;
          font-weight: 700;
          letter-spacing: 2px;
          color: rgba(255, 255, 255, 0.9);
          margin-bottom: 24px;
          text-transform: uppercase;
        }
        .hero-title {
          font-size: 56px;
          font-weight: 800;
          color: #fff;
          margin-bottom: 20px;
          line-height: 1.15;
          text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
        }
        .text-gradient {
          background: linear-gradient(135deg, #8b5cf6, #06b6d4);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
        }
        .hero-subtitle {
          font-size: 20px;
          color: rgba(255, 255, 255, 0.7);
          max-width: 640px;
          margin: 0 auto 32px;
          line-height: 1.6;
        }
        .hero-cta {
          display: inline-block;
          padding: 14px 36px;
          background: linear-gradient(135deg, #8b5cf6, #6366f1);
          color: #fff;
          border-radius: 12px;
          font-size: 16px;
          font-weight: 700;
          text-decoration: none;
          transition: all 0.3s;
          box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
        }
        .hero-cta:hover {
          transform: translateY(-2px);
          box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6);
        }

        /* Sections */
        .aff-section {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }
        .section-container {
          max-width: 1200px;
          margin: 0 auto;
          text-align: center;
        }
        .section-title {
          font-size: 40px;
          font-weight: 800;
          color: #fff;
          margin-bottom: 16px;
          text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
        }

        /* Steps */
        .steps-grid {
          display: grid;
          grid-template-columns: repeat(3, 1fr);
          gap: 24px;
          margin-top: 48px;
        }
        .step-card {
          padding: 32px 24px;
          border-radius: 16px;
          text-align: center;
          transition: all 0.3s;
        }
        .step-card:hover {
          transform: translateY(-4px);
          box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }
        .step-number {
          display: inline-block;
          width: 48px;
          height: 48px;
          line-height: 48px;
          background: linear-gradient(135deg, #8b5cf6, #06b6d4);
          border-radius: 50%;
          font-size: 24px;
          font-weight: 800;
          color: #fff;
          margin-bottom: 16px;
        }
        .step-title {
          font-size: 20px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 12px;
        }
        .step-desc {
          font-size: 15px;
          color: rgba(255, 255, 255, 0.8);
          line-height: 1.6;
        }

        /* Benefits */
        .benefits-grid {
          display: grid;
          grid-template-columns: repeat(3, 1fr);
          gap: 24px;
          margin-top: 48px;
        }
        .benefit-card {
          padding: 32px 24px;
          border-radius: 16px;
          text-align: center;
          transition: all 0.3s;
        }
        .benefit-card:hover {
          transform: translateY(-4px);
          box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }
        .benefit-icon {
          font-size: 40px;
          margin-bottom: 16px;
        }
        .benefit-title {
          font-size: 18px;
          font-weight: 700;
          color: #fff;
          margin-bottom: 8px;
        }
        .benefit-desc {
          font-size: 14px;
          color: rgba(255, 255, 255, 0.75);
          line-height: 1.6;
        }

        /* Commission Structure */
        .commission-grid {
          display: grid;
          grid-template-columns: repeat(4, 1fr);
          gap: 24px;
          margin-top: 48px;
        }
        .commission-card {
          padding: 32px 24px;
          border-radius: 16px;
          text-align: center;
          transition: all 0.3s;
        }
        .commission-card:hover {
          transform: translateY(-4px);
          box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }
        .commission-rate, .commission-rate-symbol {
          font-size: 48px;
          font-weight: 800;
          background: linear-gradient(135deg, #8b5cf6, #06b6d4);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
          background-clip: text;
          margin-bottom: 4px;
        }
        .commission-rate-symbol::before {
          content: '€';
          font-size: 28px;
        }
        .commission-label {
          font-size: 14px;
          font-weight: 600;
          color: rgba(255, 255, 255, 0.7);
          margin-bottom: 12px;
          text-transform: uppercase;
          letter-spacing: 1px;
        }
        .commission-desc {
          font-size: 14px;
          color: rgba(255, 255, 255, 0.6);
          line-height: 1.5;
        }

        /* Auth Section */
        .auth-subtitle {
          font-size: 18px;
          color: rgba(255, 255, 255, 0.7);
          margin-bottom: 32px;
        }
        .auth-box {
          max-width: 480px;
          margin: 0 auto;
          padding: 32px;
          border-radius: 16px;
        }
        .auth-toggle {
          display: flex;
          gap: 0;
          margin-bottom: 24px;
          background: rgba(255, 255, 255, 0.05);
          border-radius: 10px;
          padding: 4px;
        }
        .toggle-btn {
          flex: 1;
          padding: 10px;
          border: none;
          background: transparent;
          color: rgba(255, 255, 255, 0.6);
          font-size: 14px;
          font-weight: 600;
          cursor: pointer;
          border-radius: 8px;
          transition: all 0.2s;
        }
        .toggle-btn.active {
          background: linear-gradient(135deg, #8b5cf6, #6366f1);
          color: #fff;
        }
        .auth-error {
          padding: 12px;
          background: rgba(239, 68, 68, 0.15);
          border: 1px solid rgba(239, 68, 68, 0.3);
          border-radius: 8px;
          color: #f87171;
          font-size: 14px;
          margin-bottom: 16px;
          text-align: left;
        }
        .auth-form {
          display: flex;
          flex-direction: column;
          gap: 16px;
        }
        .form-row {
          display: grid;
          grid-template-columns: 1fr 1fr;
          gap: 16px;
        }
        .form-group {
          text-align: left;
        }
        .form-group label {
          display: block;
          font-size: 13px;
          font-weight: 600;
          color: rgba(255, 255, 255, 0.7);
          margin-bottom: 6px;
        }
        .form-group input, .form-group select {
          width: 100%;
          padding: 10px 14px;
          background: rgba(255, 255, 255, 0.06);
          border: 1px solid rgba(255, 255, 255, 0.15);
          border-radius: 8px;
          color: #fff;
          font-size: 14px;
          outline: none;
          transition: border-color 0.2s;
          box-sizing: border-box;
        }
        .form-group input::placeholder {
          color: rgba(255, 255, 255, 0.3);
        }
        .form-group input:focus, .form-group select:focus {
          border-color: #8b5cf6;
        }
        .form-group select {
          cursor: pointer;
        }
        .form-group select option {
          background: #1a1a2e;
          color: #fff;
        }
        .auth-submit {
          width: 100%;
          padding: 12px;
          background: linear-gradient(135deg, #8b5cf6, #6366f1);
          color: #fff;
          border: none;
          border-radius: 10px;
          font-size: 15px;
          font-weight: 700;
          cursor: pointer;
          transition: all 0.3s;
          margin-top: 4px;
        }
        .auth-submit:hover:not(:disabled) {
          transform: translateY(-1px);
          box-shadow: 0 4px 20px rgba(139, 92, 246, 0.5);
        }
        .auth-submit:disabled {
          opacity: 0.6;
          cursor: not-allowed;
        }
        .auth-divider {
          display: flex;
          align-items: center;
          gap: 12px;
          margin: 20px 0;
        }
        .auth-divider::before, .auth-divider::after {
          content: '';
          flex: 1;
          height: 1px;
          background: rgba(255, 255, 255, 0.1);
        }
        .auth-divider span {
          font-size: 13px;
          color: rgba(255, 255, 255, 0.4);
        }
        .google-btn {
          display: flex;
          align-items: center;
          justify-content: center;
          gap: 10px;
          width: 100%;
          padding: 11px;
          background: rgba(255, 255, 255, 0.08);
          border: 1px solid rgba(255, 255, 255, 0.15);
          border-radius: 10px;
          color: rgba(255, 255, 255, 0.85);
          font-size: 14px;
          font-weight: 600;
          text-decoration: none;
          cursor: pointer;
          transition: all 0.2s;
        }
        .google-btn:hover {
          background: rgba(255, 255, 255, 0.12);
          border-color: rgba(255, 255, 255, 0.25);
        }

        /* Footer */
        .aff-footer {
          margin: 40px 20px;
          padding: 60px 48px;
          border-radius: 24px;
        }
        .footer-inner {
          max-width: 1200px;
          margin: 0 auto;
        }
        .footer-content {
          display: grid;
          grid-template-columns: 2fr 1fr 1fr 1fr;
          gap: 48px;
          margin-bottom: 48px;
        }
        .footer-logo-text {
          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;
        }

        /* Responsive */
        @media (max-width: 968px) {
          .steps-grid, .benefits-grid {
            grid-template-columns: 1fr;
          }
          .commission-grid {
            grid-template-columns: repeat(2, 1fr);
          }
        }
        @media (max-width: 768px) {
          .hero-title { font-size: 36px; }
          .section-title { font-size: 28px; }
          .aff-hero, .aff-section, .aff-footer {
            margin: 12px;
            padding: 40px 20px;
          }
          .form-row {
            grid-template-columns: 1fr;
          }
          .commission-grid {
            grid-template-columns: 1fr;
          }
          .footer-content {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
          }
        }