/* =============================================
       CSS CUSTOM PROPERTIES
    ============================================= */
    :root {
      /* Backgrounds */
      --bg-void:       #0a0a0f;
      --bg-deep:       #0d0d14;
      --bg-base:       #12121a;
      --bg-surface:    #1a1a2e;
      --bg-card:       #16162a;
      --bg-card-hover: #1e1e38;
      --bg-glass:      rgba(22, 22, 42, 0.6);

      /* Threat color language */
      --red:           #ef4444;
      --red-bright:    #ff3b30;
      --red-glow:      rgba(239, 68, 68, 0.25);
      --green:         #22c55e;
      --green-bright:  #34d399;
      --green-glow:    rgba(34, 197, 94, 0.25);
      --amber:         #f59e0b;
      --amber-bright:  #fbbf24;
      --amber-glow:    rgba(245, 158, 11, 0.25);
      --cyan:          #06b6d4;
      --cyan-bright:   #22d3ee;
      --cyan-glow:     rgba(6, 182, 212, 0.25);
      --purple:        #a855f7;
      --purple-glow:   rgba(168, 85, 247, 0.25);
      --orange:        #f97316;
      --orange-glow:   rgba(249, 115, 22, 0.25);
      --blue:          #3b82f6;
      --blue-glow:     rgba(59, 130, 246, 0.25);

      /* Text */
      --text-primary:   #f0f0f8;
      --text-secondary: #8888aa;
      --text-muted:     #4a4a6a;
      --text-code:      #22d3ee;

      /* Borders */
      --border-subtle:  rgba(255,255,255,0.06);
      --border-mid:     rgba(255,255,255,0.1);

      /* Fonts */
      --font-display: 'Instrument Serif', Georgia, serif;
      --font-body:    'DM Sans', system-ui, sans-serif;
      --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

      /* Transitions */
      --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* =============================================
       RESET & BASE
    ============================================= */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-body);
      background-color: var(--bg-void);
      color: var(--text-primary);
      overflow-x: hidden;
      line-height: 1.6;
      /* Noise texture overlay */
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.035'/%3E%3C/svg%3E");
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      max-width: 100%;
    }

    /* =============================================
       SCROLL-REVEAL SYSTEM
    ============================================= */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }

    /* =============================================
       NAVIGATION
    ============================================= */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(10, 10, 15, 0.6);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-subtle);
      transition: background var(--transition), border-color var(--transition);
    }

    .navbar.scrolled {
      background: rgba(10, 10, 15, 0.92);
      border-bottom-color: var(--border-mid);
    }

    .nav-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      height: 64px;
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      text-decoration: none;
    }

    .nav-logo img {
      width: 32px;
      height: 32px;
      object-fit: contain;
    }

    .nav-logo-text {
      font-family: var(--font-body);
      font-weight: 700;
      font-size: 15px;
      color: var(--text-primary);
      letter-spacing: -0.02em;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      list-style: none;
      flex: 1;
    }

    .nav-links a {
      display: block;
      padding: 6px 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      border-radius: 6px;
      transition: color var(--transition), background var(--transition);
    }

    .nav-links a:hover {
      color: var(--text-primary);
      background: rgba(255,255,255,0.05);
    }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn-nav-secondary {
      padding: 7px 16px;
      font-family: var(--font-body);
      font-size: 13px;
      font-weight: 600;
      color: var(--text-secondary);
      background: transparent;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      transition: color var(--transition);
    }

    .btn-nav-secondary:hover {
      color: var(--text-primary);
    }

    /* Mobile hamburger */
    .nav-hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      margin-left: auto;
    }

    .nav-hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-secondary);
      border-radius: 2px;
      transition: all var(--transition);
    }

    .nav-mobile {
      display: none;
      flex-direction: column;
      padding: 12px 24px 20px;
      border-top: 1px solid var(--border-subtle);
      gap: 4px;
    }

    .nav-mobile.open {
      display: flex;
    }

    .nav-mobile a {
      padding: 10px 12px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      border-radius: 8px;
      transition: all var(--transition);
    }

    .nav-mobile a:hover {
      color: var(--text-primary);
      background: rgba(255,255,255,0.05);
    }

    /* =============================================
       HERO SECTION
    ============================================= */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding: 100px 24px 80px;
      position: relative;
      overflow: hidden;
    }

    /* Grid pattern overlay */
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
      background-size: 60px 60px;
      pointer-events: none;
    }

    /* Radial glow behind hero content */
    .hero::after {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 800px;
      height: 600px;
      background: radial-gradient(ellipse, rgba(239,68,68,0.06) 0%, transparent 65%);
      pointer-events: none;
    }

    .hero-inner {
      max-width: 1200px;
      margin: 0 auto;
      width: 100%;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .hero-content {
      max-width: 540px;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 500;
      color: var(--red);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      padding: 6px 12px;
      background: rgba(239,68,68,0.08);
      border: 1px solid rgba(239,68,68,0.2);
      border-radius: 100px;
      margin-bottom: 28px;
    }

    .hero-eyebrow::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--red);
      box-shadow: 0 0 6px var(--red);
      animation: pulse-dot 2s infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--red); }
      50% { opacity: 0.5; box-shadow: 0 0 12px var(--red); }
    }

    .hero-headline {
      font-family: var(--font-display);
      font-size: clamp(42px, 5.5vw, 72px);
      font-weight: 400;
      line-height: 1.08;
      letter-spacing: -0.02em;
      color: var(--text-primary);
      margin-bottom: 20px;
    }

    .hero-headline em {
      font-style: italic;
      color: var(--red-bright);
    }

    .hero-sub {
      font-size: 17px;
      font-weight: 400;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 36px;
      max-width: 420px;
    }

    .hero-ctas {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      font-family: var(--font-body);
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      background: var(--red);
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: all var(--transition);
      text-decoration: none;
    }

    .btn-primary:hover {
      background: #dc2626;
      box-shadow: 0 4px 24px rgba(239,68,68,0.4);
      transform: translateY(-1px);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      font-family: var(--font-body);
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      background: transparent;
      border: 1px solid var(--border-mid);
      border-radius: 8px;
      cursor: pointer;
      transition: all var(--transition);
      text-decoration: none;
    }

    .btn-secondary:hover {
      background: rgba(255,255,255,0.04);
      border-color: rgba(255,255,255,0.2);
      transform: translateY(-1px);
    }

    /* =============================================
       PHISHING EMAIL DISSECTION
    ============================================= */
    .hero-email-panel {
      position: relative;
    }

    .email-dissect-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      overflow: hidden;
      opacity: 0;
      animation: fade-in-up 0.8s ease 0.2s forwards;
    }

    @keyframes fade-in-up {
      from { opacity: 0; transform: translateY(20px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    .email-toolbar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 12px 16px;
      background: rgba(255,255,255,0.03);
      border-bottom: 1px solid var(--border-subtle);
    }

    .email-toolbar-dots {
      display: flex;
      gap: 6px;
    }

    .toolbar-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .toolbar-dot:nth-child(1) { background: #ff5f57; }
    .toolbar-dot:nth-child(2) { background: #febc2e; }
    .toolbar-dot:nth-child(3) { background: #28c840; }

    .email-toolbar-label {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--text-muted);
      flex: 1;
      text-align: center;
      padding-right: 24px;
    }

    .email-body-wrap {
      padding: 20px;
    }

    .email-field {
      padding: 8px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }

    .email-field:last-of-type {
      border-bottom: none;
    }

    .email-field-label {
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 500;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 3px;
    }

    .email-field-value {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--text-primary);
      line-height: 1.5;
    }

    .email-field-value .flagged {
      color: var(--red-bright);
      background: rgba(255,59,48,0.1);
      border-radius: 3px;
      padding: 1px 4px;
      position: relative;
    }

    .email-field-value .suspicious-link {
      color: var(--amber-bright);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .email-message-text {
      font-family: var(--font-body);
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-top: 8px;
    }

    /* Annotation pills */
    .annotation {
      position: absolute;
      right: -180px;
      display: flex;
      align-items: center;
      gap: 8px;
      opacity: 0;
    }

    .annotation-line {
      width: 40px;
      height: 1px;
      background: var(--red);
      flex-shrink: 0;
    }

    .annotation-pill {
      background: rgba(239,68,68,0.12);
      border: 1px solid rgba(239,68,68,0.35);
      border-radius: 6px;
      padding: 5px 10px;
      font-family: var(--font-mono);
      font-size: 10px;
      color: var(--red-bright);
      white-space: nowrap;
      line-height: 1.4;
      max-width: 150px;
    }

    /* Staggered annotation animations */
    .annotation-1 {
      top: 50%;
      transform: translateY(-50%);
      animation: slide-in-annotation 0.5s ease 1.0s forwards;
    }
    .annotation-2 {
      top: 50%;
      transform: translateY(-50%);
      animation: slide-in-annotation 0.5s ease 1.5s forwards;
    }
    .annotation-3 {
      top: 50%;
      transform: translateY(-50%);
      animation: slide-in-annotation 0.5s ease 2.0s forwards;
    }
    .annotation-4 {
      top: 50%;
      transform: translateY(-50%);
      animation: slide-in-annotation 0.5s ease 2.5s forwards;
    }

    @keyframes slide-in-annotation {
      from { opacity: 0; transform: translateY(-50%) translateX(-12px); }
      to   { opacity: 1; transform: translateY(-50%) translateX(0); }
    }

    /* =============================================
       SECTION SHARED STYLES
    ============================================= */
    section {
      padding: 100px 24px;
    }

    .section-inner {
      max-width: 1200px;
      margin: 0 auto;
      width: 100%;
    }

    .section-eyebrow {
      display: inline-block;
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 500;
      color: var(--cyan-bright);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      margin-bottom: 16px;
    }

    .section-heading {
      font-family: var(--font-display);
      font-size: clamp(32px, 4vw, 54px);
      font-weight: 400;
      line-height: 1.1;
      letter-spacing: -0.02em;
      color: var(--text-primary);
      margin-bottom: 16px;
    }

    .section-sub {
      font-size: 17px;
      color: var(--text-secondary);
      max-width: 520px;
      line-height: 1.65;
    }

    .section-header {
      margin-bottom: 56px;
      text-align: center;
    }

    .section-header .section-sub {
      margin: 0 auto;
    }

    /* =============================================
       MODULES GRID
    ============================================= */
    .modules-section {
      background: var(--bg-deep);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .modules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .module-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      padding: 28px;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      position: relative;
      overflow: hidden;
      transition: all var(--transition);
      cursor: pointer;
    }

    .module-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--card-accent, var(--cyan));
      opacity: 0.6;
      transition: opacity var(--transition);
    }

    .module-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--card-accent, var(--cyan));
      box-shadow: 0 0 0 1px var(--card-accent, var(--cyan)), 0 8px 32px rgba(0,0,0,0.4);
      transform: translateY(-3px);
    }

    .module-card:hover::before {
      opacity: 1;
    }

    .module-card-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
    }

    .module-icon-wrap {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }

    .module-icon-wrap svg {
      width: 22px;
      height: 22px;
    }

    .module-badges {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .badge {
      font-family: var(--font-mono);
      font-size: 9px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      padding: 3px 8px;
      border-radius: 4px;
    }

    .badge-platform {
      color: var(--text-muted);
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.06);
    }

    .badge-difficulty {
      color: var(--amber-bright);
      background: rgba(245,158,11,0.08);
      border: 1px solid rgba(245,158,11,0.18);
    }

    .badge-difficulty.easy {
      color: var(--green-bright);
      background: rgba(34,197,94,0.08);
      border-color: rgba(34,197,94,0.18);
    }

    .badge-difficulty.hard {
      color: var(--red-bright);
      background: rgba(239,68,68,0.08);
      border-color: rgba(239,68,68,0.18);
    }

    .module-name {
      font-family: var(--font-body);
      font-size: 17px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: -0.01em;
    }

    .module-desc {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
      flex: 1;
    }

    .module-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 14px;
      border-top: 1px solid var(--border-subtle);
    }

    .module-duration {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--text-muted);
    }

    .module-arrow {
      display: flex;
      align-items: center;
      color: var(--card-accent, var(--cyan));
      opacity: 0;
      transform: translateX(-6px);
      transition: all var(--transition);
    }

    .module-card:hover .module-arrow {
      opacity: 1;
      transform: translateX(0);
    }

    /* =============================================
       HOW IT WORKS
    ============================================= */
    .how-section {
      background: var(--bg-void);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: 1fr auto 1fr auto 1fr;
      gap: 0;
      align-items: start;
      margin-top: 64px;
    }

    .step-connector {
      padding-top: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
    }

    .step-connector-line {
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .connector-dot {
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: var(--border-mid);
    }

    .step {
      text-align: center;
      padding: 0 24px;
    }

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 64px;
      height: 64px;
      border-radius: 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      margin-bottom: 20px;
      position: relative;
    }

    .step-number-text {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      color: var(--text-muted);
      position: absolute;
      top: -8px;
      right: -8px;
      background: var(--bg-base);
      padding: 2px 6px;
      border-radius: 4px;
      border: 1px solid var(--border-subtle);
    }

    .step-icon {
      color: var(--cyan-bright);
    }

    .step-title {
      font-family: var(--font-display);
      font-size: 24px;
      font-weight: 400;
      letter-spacing: -0.01em;
      color: var(--text-primary);
      margin-bottom: 10px;
    }

    .step-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* =============================================
       PLATFORM SECTION
    ============================================= */
    .platform-section {
      background: var(--bg-base);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .platform-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    /* Desktop mockup */
    .desktop-mockup {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      overflow: hidden;
    }

    .mockup-titlebar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      background: rgba(255,255,255,0.02);
      border-bottom: 1px solid var(--border-subtle);
    }

    .mockup-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }
    .mockup-dot:nth-child(1) { background: #ff5f57; }
    .mockup-dot:nth-child(2) { background: #febc2e; }
    .mockup-dot:nth-child(3) { background: #28c840; }

    .mockup-url {
      flex: 1;
      font-family: var(--font-mono);
      font-size: 10px;
      color: var(--text-muted);
      text-align: center;
    }

    .mockup-body {
      padding: 16px;
    }

    .mockup-email-row {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px;
      border-radius: 6px;
      background: rgba(255,255,255,0.025);
      border: 1px solid var(--border-subtle);
      margin-bottom: 8px;
    }

    .mockup-sender-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      flex-shrink: 0;
    }

    .mockup-email-info {
      flex: 1;
      min-width: 0;
    }

    .mockup-email-from {
      font-family: var(--font-mono);
      font-size: 10px;
      color: var(--text-secondary);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .mockup-email-subj {
      font-size: 10px;
      color: var(--text-muted);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .mockup-flag {
      font-family: var(--font-mono);
      font-size: 8px;
      padding: 2px 6px;
      border-radius: 3px;
      flex-shrink: 0;
    }

    .mockup-flag.red {
      background: rgba(239,68,68,0.15);
      color: var(--red-bright);
      border: 1px solid rgba(239,68,68,0.3);
    }

    .mockup-flag.green {
      background: rgba(34,197,94,0.1);
      color: var(--green-bright);
      border: 1px solid rgba(34,197,94,0.25);
    }

    .mockup-flag.amber {
      background: rgba(245,158,11,0.1);
      color: var(--amber-bright);
      border: 1px solid rgba(245,158,11,0.25);
    }

    /* Platform center text */
    .platform-center {
      text-align: center;
    }

    .platform-center .section-heading {
      font-size: clamp(26px, 3vw, 40px);
      margin-bottom: 14px;
    }

    .platform-center .section-sub {
      font-size: 14px;
      max-width: 280px;
      margin: 0 auto 24px;
    }

    /* =============================================
       STATS BAR
    ============================================= */
    .stats-section {
      padding: 60px 24px;
      background: var(--bg-deep);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--border-subtle);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      overflow: hidden;
    }

    .stat-item {
      background: var(--bg-card);
      padding: 36px 24px;
      text-align: center;
    }

    .stat-number {
      font-family: var(--font-mono);
      font-size: clamp(36px, 4vw, 52px);
      font-weight: 700;
      color: var(--cyan-bright);
      text-shadow: 0 0 24px rgba(34,211,238,0.4);
      letter-spacing: -0.03em;
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-secondary);
      font-weight: 500;
    }

    /* =============================================
       ENTERPRISE SECTION
    ============================================= */
    .enterprise-section {
      background: var(--bg-void);
    }

    .enterprise-card {
      background: var(--bg-card);
      border-radius: 16px;
      padding: 56px;
      position: relative;
      overflow: hidden;
    }

    /* Gradient border effect via box-shadow */
    .enterprise-card::before {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: 16px;
      padding: 1px;
      background: linear-gradient(135deg, rgba(239,68,68,0.4), rgba(168,85,247,0.3), rgba(6,182,212,0.3));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      pointer-events: none;
    }

    .enterprise-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .enterprise-content .section-heading {
      margin-bottom: 20px;
      text-align: left;
    }

    .enterprise-bullets {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 32px;
    }

    .enterprise-bullets li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 15px;
      color: var(--text-secondary);
    }

    .enterprise-bullets li::before {
      content: '';
      display: block;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--green-bright);
      flex-shrink: 0;
      box-shadow: 0 0 6px var(--green);
    }

    .enterprise-stats {
      display: flex;
      gap: 32px;
    }

    .ent-stat-num {
      font-family: var(--font-mono);
      font-size: 28px;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1;
      margin-bottom: 4px;
    }

    .ent-stat-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    .enterprise-visual {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .ent-chart-row {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ent-chart-label {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--text-muted);
      width: 120px;
      flex-shrink: 0;
    }

    .ent-chart-track {
      flex: 1;
      height: 8px;
      background: rgba(255,255,255,0.04);
      border-radius: 4px;
      overflow: hidden;
      border: 1px solid var(--border-subtle);
    }

    .ent-chart-fill {
      height: 100%;
      border-radius: 4px;
    }

    .ent-chart-pct {
      font-family: var(--font-mono);
      font-size: 10px;
      color: var(--text-muted);
      width: 30px;
      text-align: right;
    }

    /* =============================================
       EMAIL SIGNUP
    ============================================= */
    .signup-section {
      padding: 80px 24px;
      background: var(--bg-base);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .signup-card {
      max-width: 560px;
      margin: 0 auto;
      text-align: center;
    }

    .signup-card .section-heading {
      font-size: clamp(28px, 3.5vw, 44px);
      margin-bottom: 12px;
    }

    .signup-card .section-sub {
      max-width: 380px;
      margin: 0 auto 32px;
      font-size: 15px;
    }

    .signup-form {
      display: flex;
      gap: 10px;
      max-width: 440px;
      margin: 0 auto 14px;
    }

    .signup-input {
      flex: 1;
      padding: 13px 18px;
      background: var(--bg-card);
      border: 1px solid var(--border-mid);
      border-radius: 8px;
      font-family: var(--font-body);
      font-size: 14px;
      color: var(--text-primary);
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .signup-input::placeholder {
      color: var(--text-muted);
    }

    .signup-input:focus {
      border-color: rgba(34,211,238,0.4);
      box-shadow: 0 0 0 3px rgba(34,211,238,0.08);
    }

    .btn-signup {
      padding: 13px 24px;
      font-family: var(--font-body);
      font-size: 14px;
      font-weight: 600;
      color: #fff;
      background: var(--red);
      border: none;
      border-radius: 8px;
      cursor: pointer;
      white-space: nowrap;
      transition: all var(--transition);
    }

    .btn-signup:hover {
      background: #dc2626;
      box-shadow: 0 4px 20px rgba(239,68,68,0.35);
    }

    .signup-fine {
      font-size: 12px;
      color: var(--text-muted);
    }

    .signup-status {
      font-size: 13px;
      min-height: 20px;
      margin-top: 4px;
      transition: color var(--transition);
    }

    /* =============================================
       FOOTER
    ============================================= */
    footer {
      background: var(--bg-deep);
      border-top: 1px solid var(--border-subtle);
      padding: 72px 24px 40px;
    }

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

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 56px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-brand img {
      width: 28px;
      height: 28px;
      object-fit: contain;
    }

    .footer-brand-text {
      font-family: var(--font-body);
      font-size: 14px;
      font-weight: 700;
      color: var(--text-primary);
    }

    .footer-about-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .footer-github-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 500;
      color: var(--text-secondary);
      transition: color var(--transition);
    }

    .footer-github-link:hover {
      color: var(--text-primary);
    }

    .footer-col h4 {
      font-family: var(--font-body);
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--text-secondary);
      transition: color var(--transition);
    }

    .footer-links a:hover {
      color: var(--text-primary);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 32px;
      border-top: 1px solid var(--border-subtle);
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-copy {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }

    .footer-bottom-links a {
      font-size: 13px;
      color: var(--text-muted);
      transition: color var(--transition);
    }

    .footer-bottom-links a:hover {
      color: var(--text-secondary);
    }

    /* =============================================
       RESPONSIVE
    ============================================= */
    @media (max-width: 1024px) {
      .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
      }

      .hero-content {
        max-width: 100%;
        text-align: center;
      }

      .hero-sub {
        max-width: 100%;
      }

      .hero-ctas {
        justify-content: center;
      }

      .hero-eyebrow {
        margin-left: auto;
        margin-right: auto;
      }

      .annotation {
        display: none;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .step-connector {
        display: none;
      }

      .platform-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .platform-center {
        order: -1;
      }

      .enterprise-inner {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 768px) {
      section { padding: 72px 20px; }

      .nav-links,
      .nav-right {
        display: none;
      }

      .nav-hamburger {
        display: flex;
      }

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

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .signup-form {
        flex-direction: column;
      }

      .enterprise-card {
        padding: 32px 24px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (min-width: 769px) and (max-width: 1023px) {
      .modules-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }