/* ============================================================
   SWIFT-WALLET Landing Page - Editorial Design System
   Teal/Emerald Accent | Light Theme | No Gradient Overuse
   ============================================================ */

/* -------------------------
   CSS Custom Properties
------------------------- */
:root {
    /* Primary palette - Teal/Emerald */
    --color-accent: #0d9488;
    --color-accent-hover: #0f766e;
    --color-accent-light: #ccfbf1;
    --color-accent-subtle: #f0fdfa;
    
    /* Secondary palette - Indigo */
    --color-accent-secondary: #4f46e5;
    --color-accent-secondary-hover: #4338ca;
    --color-accent-secondary-light: #e0e7ff;
    --color-accent-secondary-subtle: #eef2ff;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-secondary) 100%);
    --gradient-primary-hover: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent-secondary-hover) 100%);
    --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
                     radial-gradient(ellipse 60% 50% at 80% 50%, rgba(13, 148, 136, 0.12) 0%, transparent 50%),
                     radial-gradient(ellipse 50% 40% at 20% 80%, rgba(79, 70, 229, 0.08) 0%, transparent 50%);
    --gradient-card-glow: 0 0 40px rgba(79, 70, 229, 0.15), 0 0 80px rgba(13, 148, 136, 0.1);
    --gradient-text: linear-gradient(135deg, var(--color-ink) 0%, var(--color-accent-secondary) 50%, var(--color-accent) 100%);
    --gradient-cta-bg: linear-gradient(135deg, #1e1b4b 0%, #0c0a1d 50%, #0f172a 100%);
    
    /* Neutrals */
    --color-ink: #1a1a2e;
    --color-ink-light: #374151;
    --color-ink-muted: #6b7280;
    --color-ink-faint: #9ca3af;
    
    /* Backgrounds */
    --color-bg: #fafafa;
    --color-bg-alt: #f4f4f5;
    --color-bg-card: #ffffff;
    --color-bg-code: #1e293b;
    
    /* Borders */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    /* Feedback */
    --color-success: #059669;
    --color-warning: #d97706;
    --color-error: #dc2626;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Font sizes - fluid scale */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
    --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
    --text-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1rem);
    --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.125rem);
    --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.25rem);
    --text-2xl: clamp(1.375rem, 1.25rem + 0.6vw, 1.5rem);
    --text-3xl: clamp(1.75rem, 1.5rem + 1.25vw, 2rem);
    --text-4xl: clamp(2rem, 1.75rem + 1.25vw, 2.5rem);
    --text-5xl: clamp(2.5rem, 2rem + 2.5vw, 3.5rem);
    
    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --nav-height: 72px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.07);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.08);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.08);
    
    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
  }
  
  /* -------------------------
     Reset & Base
  ------------------------- */
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + var(--space-4));
    overflow-x: hidden;
  }
  
  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
  
  body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-ink);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
  }
  
  img,
  svg {
    display: block;
    max-width: 100%;
    height: auto;
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
  }
  
  ul,
  ol {
    list-style: none;
  }
  
  /* -------------------------
     Typography
  ------------------------- */
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-ink);
    letter-spacing: -0.02em;
  }
  
  h1 { font-size: var(--text-5xl); font-weight: 700; }
  h2 { font-size: var(--text-4xl); }
  h3 { font-size: var(--text-3xl); }
  h4 { font-size: var(--text-2xl); }
  h5 { font-size: var(--text-xl); }
  h6 { font-size: var(--text-lg); }
  
  p {
    color: var(--color-ink-light);
  }
  
  .text-muted {
    color: var(--color-ink-muted);
  }
  
  .text-accent {
    color: var(--color-accent);
  }
  
  .text-center { text-align: center; }
  .text-balance { text-wrap: balance; }
  
  /* -------------------------
     Layout Utilities
  ------------------------- */
  .container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
  }
  
  .container--narrow {
    max-width: var(--container-narrow);
  }
  
  .section {
    padding: var(--space-24) 0;
  }
  
  .section--compact {
    padding: var(--space-16) 0;
  }
  
  .section--alt {
    background: var(--color-bg-alt);
  }
  
  .grid {
    display: grid;
    gap: var(--space-6);
  }
  
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  @media (max-width: 1024px) {
    .grid--4 {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 768px) {
    .grid--2,
    .grid--3,
    .grid--4 {
      grid-template-columns: 1fr;
    }
    
    .section {
      padding: var(--space-16) 0;
    }
  }
  
  .flex {
    display: flex;
  }
  
  .flex--center {
    align-items: center;
    justify-content: center;
  }
  
  .flex--between {
    align-items: center;
    justify-content: space-between;
  }
  
  .flex--col {
    flex-direction: column;
  }
  
  .gap-2 { gap: var(--space-2); }
  .gap-3 { gap: var(--space-3); }
  .gap-4 { gap: var(--space-4); }
  .gap-6 { gap: var(--space-6); }
  .gap-8 { gap: var(--space-8); }
  
  /* -------------------------
     Skip Link (A11y)
  ------------------------- */
  .skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: 9999;
    padding: var(--space-3) var(--space-5);
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: top var(--duration-fast) var(--ease-out);
  }
  
  .skip-link:focus {
    top: var(--space-4);
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }
  
  /* -------------------------
     Navigation
  ------------------------- */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    transition: box-shadow var(--duration-normal) var(--ease-out),
                background var(--duration-normal) var(--ease-out);
  }
  
  .nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
  }
  
  .nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
  }
  
  .nav__brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-ink);
    transition: opacity var(--duration-fast);
  }
  
  .nav__brand:hover {
    opacity: 0.8;
  }
  
  .nav__brand-logo {
    height: 34px;
    width: auto;
    display: block;
  }
  
  .nav__brand-text {
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #252b36;
  }
  
  .nav__brand-text .brand-accent {
    color: #4c57ee;
  }
  
  .footer__brand-logo {
    width: 160px;
    height: auto;
    display: block;
  }
  
  .nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
  
  .nav__link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-ink-muted);
    border-radius: var(--radius-md);
    transition: color var(--duration-fast), background var(--duration-fast);
  }
  
  .nav__link:hover,
  .nav__link:focus {
    color: var(--color-ink);
    background: var(--color-bg-alt);
  }
  
  .nav__link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }
  
  .nav__menu {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
  
  .nav__cta {
    margin-left: var(--space-4);
  }
  
  /* Mobile nav toggle */
  .nav__toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: var(--color-ink);
    border-radius: var(--radius-md);
    transition: background var(--duration-fast);
  }
  
  .nav__toggle:hover {
    background: var(--color-bg-alt);
  }
  
  .nav__toggle-icon {
    width: 20px;
    height: 14px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  
  .nav__toggle-line {
    display: block;
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform var(--duration-normal) var(--ease-out),
                opacity var(--duration-normal);
  }
  
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(2) {
    opacity: 0;
  }
  
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  
  @media (max-width: 900px) {
    .nav__toggle {
      display: flex;
    }
    
    .nav__menu {
      position: fixed;
      top: var(--nav-height);
      left: 0;
      right: auto;
      width: 100vw;
      height: calc(100dvh - var(--nav-height));
      background: var(--color-bg-card);
      padding: var(--space-6) var(--space-6) var(--space-8);
      display: flex;
      flex-direction: column;
      align-items: stretch;
      gap: var(--space-4);
      transform: translateX(100%);
      transition: transform var(--duration-normal) var(--ease-out), visibility 0s linear var(--duration-normal);
      overflow-y: auto;
      overscroll-behavior: contain;
      visibility: hidden;
      z-index: 1001;
    }
    
    .nav__menu.open {
      transform: translateX(0);
      visibility: visible;
      transition: transform var(--duration-normal) var(--ease-out);
    }
    
    .nav__links {
      flex-direction: column;
      align-items: stretch;
      gap: var(--space-2);
      width: 100%;
    }
    
    .nav__link {
      padding: var(--space-4);
      font-size: var(--text-base);
      display: block;
      width: 100%;
    }
    
    .nav__cta {
      margin-left: 0;
      margin-top: var(--space-4);
      width: 100%;
    }
  }
  
  /* Desktop nav - explicitly override mobile styles */
  @media (min-width: 901px) {
    .nav__toggle {
      display: none !important;
    }
    
    .nav__menu {
      position: static !important;
      transform: none !important;
      background: transparent !important;
      padding: 0 !important;
      flex-direction: row !important;
      overflow: visible !important;
    }
    
    .nav__links {
      flex-direction: row !important;
      align-items: center !important;
    }
    
    .nav__link {
      padding: var(--space-2) var(--space-4) !important;
      font-size: var(--text-sm) !important;
    }
    
    .nav__cta {
      margin-left: var(--space-4) !important;
      margin-top: 0 !important;
    }
  }
  
  /* -------------------------
     Buttons
  ------------------------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.4;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
  }
  
  .btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }
  
  .btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25), 
                0 4px 16px rgba(13, 148, 136, 0.15),
                inset 0 1px 0 rgb(255 255 255 / 0.15);
    position: relative;
    overflow: hidden;
  }
  
  .btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
  }
  
  .btn--primary:hover {
    background: var(--gradient-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35), 
                0 8px 24px rgba(13, 148, 136, 0.2);
  }
  
  .btn--primary:hover::before {
    left: 100%;
  }
  
  .btn--primary:active {
    transform: translateY(0);
  }
  
  .btn--secondary {
    background: var(--color-bg-card);
    color: var(--color-ink);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: relative;
  }
  
  .btn--secondary:hover {
    background: var(--color-bg-alt);
    border-color: var(--color-accent-secondary);
    color: var(--color-accent-secondary);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.1);
  }
  
  .btn--ghost {
    background: transparent;
    color: var(--color-ink-light);
  }
  
  .btn--ghost:hover {
    background: var(--color-bg-alt);
    color: var(--color-ink);
  }
  
  .btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
  }
  
  .btn i {
    font-size: 0.9em;
  }
  
  /* -------------------------
     Hero Section
  ------------------------- */
  .hero {
    padding-top: calc(var(--nav-height) + var(--space-16));
    padding-bottom: var(--space-20);
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero), var(--color-bg);
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
      radial-gradient(circle at 15% 50%, rgba(79, 70, 229, 0.03) 0%, transparent 25%),
      radial-gradient(circle at 85% 30%, rgba(13, 148, 136, 0.04) 0%, transparent 25%);
    pointer-events: none;
  }
  
  .hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
  }
  
  .hero__content {
    max-width: 560px;
  }
  
  .hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent-secondary-light) 100%);
    color: var(--color-accent-secondary);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
    border: 1px solid rgba(79, 70, 229, 0.15);
    animation: badgePulse 3s ease-in-out infinite;
  }
  
  @keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.1); }
    50% { box-shadow: 0 0 20px 2px rgba(79, 70, 229, 0.15); }
  }
  
  .hero__badge i {
    font-size: 0.75rem;
  }
  
  .hero__title {
    margin-bottom: var(--space-6);
    line-height: 1.1;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .hero__subtitle {
    font-size: var(--text-xl);
    color: var(--color-ink-muted);
    margin-bottom: var(--space-8);
    line-height: 1.6;
  }
  
  .hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
  }
  
  .hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
  }
  
  .hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
  
  .hero__trust-item i {
    color: var(--color-success);
  }
  
  .hero__visual {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .hero__illustration {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4 / 3;
    background: var(--color-bg-card);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), var(--gradient-card-glow);
    padding: var(--space-8);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
  
  .hero__illustration::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
  }
  
  @media (max-width: 1024px) {
    .hero__inner {
      grid-template-columns: 1fr;
      gap: var(--space-12);
      text-align: center;
    }
    
    .hero__content {
      max-width: 640px;
      margin: 0 auto;
    }
    
    .hero__actions {
      justify-content: center;
    }
    
    .hero__trust {
      justify-content: center;
    }
    
    .hero__visual {
      order: -1;
    }
    
    .hero__illustration {
      max-width: 400px;
    }
  }
  
  @media (max-width: 600px) {
    .hero {
      min-height: auto;
      padding-top: calc(var(--nav-height) + var(--space-10));
      padding-bottom: var(--space-12);
    }
    
    .hero__actions {
      flex-direction: column;
    }
    
    .hero__actions .btn {
      width: 100%;
    }
  }
  
  /* -------------------------
     Audience Cards (Business + Devs)
  ------------------------- */
  .audience {
    background: var(--color-bg-alt);
  }
  
  .audience__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
  
  .audience__card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    transition: box-shadow var(--duration-normal), transform var(--duration-normal), border-color var(--duration-normal);
    position: relative;
    overflow: hidden;
  }
  
  .audience__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--duration-normal);
  }
  
  .audience__card:hover {
    box-shadow: var(--shadow-lg), 0 0 40px rgba(79, 70, 229, 0.08);
    transform: translateY(-6px);
    border-color: rgba(79, 70, 229, 0.2);
  }
  
  .audience__card:hover::before {
    opacity: 1;
  }
  
  .audience__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent-secondary-light) 100%);
    color: var(--color-accent-secondary);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: var(--space-6);
    transition: transform var(--duration-normal), box-shadow var(--duration-normal);
  }
  
  .audience__card:hover .audience__icon {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.2);
  }
  
  .audience__title {
    margin-bottom: var(--space-3);
  }
  
  .audience__desc {
    color: var(--color-ink-muted);
    margin-bottom: var(--space-6);
  }
  
  .audience__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
  }
  
  .audience__list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    color: var(--color-ink-light);
    font-size: var(--text-sm);
  }
  
  .audience__list-item i {
    color: var(--color-accent);
    margin-top: 3px;
    flex-shrink: 0;
  }
  
  @media (max-width: 768px) {
    .audience__grid {
      grid-template-columns: 1fr;
    }
    
    .audience__card {
      padding: var(--space-8);
    }
  }
  
  /* -------------------------
     How It Works (Steps)
  ------------------------- */
  .steps__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    position: relative;
  }
  
  .steps__grid::before {
    content: '';
    position: absolute;
    top: 40px;
    left: calc(16.67% + 24px);
    right: calc(16.67% + 24px);
    height: 2px;
    background: var(--color-border);
  }
  
  .step {
    text-align: center;
    position: relative;
  }
  
  .step__number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-weight: 700;
    font-size: var(--text-lg);
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-6);
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
  }
  
  .step__title {
    margin-bottom: var(--space-2);
  }
  
  .step__desc {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
  }
  
  @media (max-width: 768px) {
    .steps__grid {
      grid-template-columns: 1fr;
      gap: var(--space-10);
    }
    
    .steps__grid::before {
      display: none;
    }
  }
  
  /* -------------------------
     Channels Section
  ------------------------- */
  .channels__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
  
  .channel {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: box-shadow var(--duration-normal), transform var(--duration-normal), border-color var(--duration-normal);
    position: relative;
    overflow: hidden;
  }
  
  .channel::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--duration-normal);
  }
  
  .channel:hover {
    box-shadow: var(--shadow-lg), 0 0 30px rgba(79, 70, 229, 0.06);
    transform: translateY(-6px);
    border-color: rgba(79, 70, 229, 0.15);
  }
  
  .channel:hover::after {
    transform: scaleX(1);
  }
  
  .channel__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: var(--space-5);
  }
  
  .channel__icon--paybill {
    background: linear-gradient(135deg, #dbeafe 0%, var(--color-accent-secondary-light) 100%);
    color: #2563eb;
  }
  
  .channel__icon--till {
    background: linear-gradient(135deg, #ffedd5 0%, #fef3c7 100%);
    color: #ea580c;
  }
  
  .channel__icon--bank {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent-secondary-light) 100%);
    color: var(--color-accent);
  }
  
  .channel:hover .channel__icon {
    transform: scale(1.1);
  }
  
  .channel__icon {
    transition: transform var(--duration-normal);
  }
  
  .channel__title {
    margin-bottom: var(--space-2);
  }
  
  .channel__desc {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-5);
  }
  
  .channel__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .channel__feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-ink-light);
    font-size: var(--text-sm);
  }
  
  .channel__feature i {
    color: var(--color-success);
    font-size: 0.75rem;
  }
  
  @media (max-width: 900px) {
    .channels__grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* -------------------------
     Use Cases Section
  ------------------------- */
  .use-cases {
    background: var(--color-bg-alt);
  }
  
  .use-cases__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
  }
  
  .use-case {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    transition: box-shadow var(--duration-normal), transform var(--duration-normal), border-color var(--duration-normal);
  }
  
  .use-case:hover {
    box-shadow: var(--shadow-md), 0 0 20px rgba(79, 70, 229, 0.05);
    transform: translateY(-4px);
    border-color: rgba(79, 70, 229, 0.2);
  }
  
  .use-case:hover .use-case__icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
  }
  
  .use-case__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent-secondary-light) 100%);
    color: var(--color-accent-secondary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    margin: 0 auto var(--space-4);
    transition: all var(--duration-normal);
  }
  
  .use-case__title {
    font-size: var(--text-base);
    margin-bottom: var(--space-2);
  }
  
  .use-case__desc {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    line-height: 1.5;
  }
  
  @media (max-width: 1024px) {
    .use-cases__grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 600px) {
    .use-cases__grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* -------------------------
     API / Developer Section
  ------------------------- */
  .api-section {
    background: var(--color-bg);
  }
  
  .api__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
  }
  
  .api__content h2 {
    margin-bottom: var(--space-4);
  }
  
  .api__content > p {
    color: var(--color-ink-muted);
    margin-bottom: var(--space-8);
    max-width: 480px;
  }
  
  .api__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
  }
  
  .api__feature {
    display: flex;
    gap: var(--space-4);
  }
  
  .api__feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent-secondary-light) 100%);
    color: var(--color-accent-secondary);
    border-radius: var(--radius-md);
    font-size: 1rem;
    flex-shrink: 0;
    transition: transform var(--duration-normal), box-shadow var(--duration-normal);
  }
  
  .api__feature:hover .api__feature-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
  }
  
  .api__feature-content h6 {
    font-size: var(--text-sm);
    margin-bottom: var(--space-1);
  }
  
  .api__feature-content p {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }
  
  .api__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  
  /* Code block */
  .api__code-wrapper {
    position: relative;
  }
  
  .api__code {
    background: var(--color-bg-code);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(79, 70, 229, 0.1);
    border: 1px solid rgba(79, 70, 229, 0.15);
  }
  
  .api__code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .api__code-dots {
    display: flex;
    gap: var(--space-2);
  }
  
  .api__code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
  }
  
  .api__code-dot:nth-child(1) { background: #ff5f57; }
  .api__code-dot:nth-child(2) { background: #ffbd2e; }
  .api__code-dot:nth-child(3) { background: #28ca41; }
  
  .api__code-copy {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast);
  }
  
  .api__code-copy:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
  }
  
  .api__code-copy.copied {
    background: var(--color-success);
    color: white;
  }
  
  .api__code-body {
    padding: var(--space-6);
    overflow-x: auto;
  }
  
  .api__code-body pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.7;
    color: #e2e8f0;
  }
  
  .api__code-body .comment { color: #64748b; }
  .api__code-body .keyword { color: #38bdf8; }
  .api__code-body .string { color: #a5f3fc; }
  .api__code-body .property { color: #22d3ee; }
  .api__code-body .value { color: #fbbf24; }
  .api__code-body .boolean { color: #34d399; }
  
  @media (max-width: 1024px) {
    .api__inner {
      grid-template-columns: 1fr;
      gap: var(--space-10);
    }
    
    .api__content {
      text-align: center;
    }
    
    .api__content > p {
      max-width: none;
    }
    
    .api__features {
      max-width: 480px;
      margin: 0 auto var(--space-8);
      text-align: left;
    }
    
    .api__actions {
      justify-content: center;
    }
  }
  
  /* -------------------------
     FAQ Section
  ------------------------- */
  .faq {
    background: var(--color-bg-alt);
  }
  
  .faq__header {
    text-align: center;
    margin-bottom: var(--space-12);
  }
  
  .faq__header h2 {
    margin-bottom: var(--space-4);
  }
  
  .faq__header p {
    color: var(--color-ink-muted);
    max-width: 560px;
    margin: 0 auto;
  }
  
  .faq__list {
    max-width: var(--container-narrow);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .faq__item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--duration-normal), box-shadow var(--duration-normal);
  }
  
  .faq__item:hover {
    border-color: rgba(79, 70, 229, 0.2);
  }
  
  .faq__item.open {
    border-color: rgba(79, 70, 229, 0.3);
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.08);
  }
  
  .faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    text-align: left;
    font-weight: 600;
    color: var(--color-ink);
    transition: background var(--duration-fast);
  }
  
  .faq__question:hover {
    background: var(--color-bg-alt);
  }
  
  .faq__question:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
  }
  
  .faq__icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-ink-muted);
    transition: transform var(--duration-normal) var(--ease-out);
    flex-shrink: 0;
  }
  
  .faq__item.open .faq__icon {
    transform: rotate(180deg);
  }
  
  .faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out);
  }
  
  .faq__item.open .faq__answer {
    max-height: 300px;
  }
  
  .faq__answer-inner {
    padding: 0 var(--space-6) var(--space-6);
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    line-height: 1.7;
  }
  
  /* -------------------------
     Final CTA Section
  ------------------------- */
  .final-cta {
    background: var(--gradient-cta-bg);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  
  .final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
      radial-gradient(ellipse 80% 60% at 50% 120%, rgba(79, 70, 229, 0.4) 0%, transparent 50%),
      radial-gradient(ellipse 60% 40% at 20% 0%, rgba(13, 148, 136, 0.2) 0%, transparent 40%),
      radial-gradient(ellipse 50% 30% at 80% 20%, rgba(79, 70, 229, 0.15) 0%, transparent 40%);
    pointer-events: none;
  }
  
  .final-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(79, 70, 229, 0.5) 50%, transparent 100%);
  }
  
  .final-cta__inner {
    position: relative;
    z-index: 1;
  }
  
  .final-cta h2 {
    color: white;
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 50%, #5eead4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .final-cta p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    margin: 0 auto var(--space-8);
    font-size: var(--text-lg);
  }
  
  .final-cta__actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
  }
  
  .final-cta .btn--secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
  }
  
  .final-cta .btn--secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
  }
  
  .final-cta__trust {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-6);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
  }
  
  .final-cta__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
  
  .final-cta__trust-item i {
    color: #5eead4;
  }
  
  .final-cta .btn--primary {
    background: linear-gradient(135deg, #5eead4 0%, #4f46e5 100%);
    box-shadow: 0 4px 20px rgba(94, 234, 212, 0.3), 
                0 8px 30px rgba(79, 70, 229, 0.2);
  }
  
  .final-cta .btn--primary:hover {
    box-shadow: 0 6px 25px rgba(94, 234, 212, 0.4), 
                0 12px 40px rgba(79, 70, 229, 0.3);
    transform: translateY(-3px);
  }
  
  /* -------------------------
     Footer
  ------------------------- */
  .footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
  }
  
  .footer__grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: var(--space-10);
    margin-bottom: var(--space-12);
  }
  
  .footer__brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-ink);
    margin-bottom: var(--space-4);
  }
  
  .footer__brand-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.2);
  }
  
  .footer__about p {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
    max-width: 280px;
  }
  
  .footer__social {
    display: flex;
    gap: var(--space-3);
  }
  
  .footer__social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    color: var(--color-ink-muted);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast);
  }
  
  .footer__social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
  }
  
  .footer__col h6 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .footer__link {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    transition: color var(--duration-fast);
  }
  
  .footer__link:hover {
    color: var(--color-accent);
  }
  
  .footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
  }
  
  .footer__bottom-links {
    display: flex;
    gap: var(--space-6);
  }
  
  .footer__bottom-links a {
    color: var(--color-ink-muted);
    transition: color var(--duration-fast);
  }
  
  .footer__bottom-links a:hover {
    color: var(--color-accent);
  }
  
  @media (max-width: 1024px) {
    .footer__grid {
      grid-template-columns: repeat(3, 1fr);
    }
    
    .footer__about {
      grid-column: 1 / -1;
      text-align: center;
    }
    
    .footer__about p {
      max-width: none;
    }
    
    .footer__social {
      justify-content: center;
    }
  }
  
  @media (max-width: 600px) {
    .footer__grid {
      grid-template-columns: 1fr 1fr;
      gap: var(--space-8);
    }
    
    .footer__bottom {
      flex-direction: column;
      gap: var(--space-4);
      text-align: center;
    }
  }
  
  /* -------------------------
     Section Headers
  ------------------------- */
  .section-header {
    text-align: center;
    margin-bottom: var(--space-12);
  }
  
  .section-header h2 {
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, var(--color-ink) 0%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .section-header p {
    color: var(--color-ink-muted);
    max-width: 640px;
    margin: 0 auto;
    font-size: var(--text-lg);
  }
  
  /* -------------------------
     Reveal Animations
  ------------------------- */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
  }
  
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .reveal-delay-1 { transition-delay: 100ms; }
  .reveal-delay-2 { transition-delay: 200ms; }
  .reveal-delay-3 { transition-delay: 300ms; }
  .reveal-delay-4 { transition-delay: 400ms; }
  
  /* -------------------------
     Utility: Visually Hidden
  ------------------------- */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }