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

    :root {
      /* Dark theme (default) */
      --bg: #0a0a14;
      --bg-alt: #0e0e1a;
      --bg-card: #12121e;
      --bg-card-hover: #1a1a2e;
      --border: rgba(255,255,255,0.06);
      --border-strong: rgba(255,255,255,0.1);
      --text: #f0f0f5;
      --text-secondary: #c0c0d0;
      --text-muted: #8888a0;
      --primary: #7C3AED;
      --primary-light: #a78bfa;
      --primary-glow: rgba(124, 58, 237, 0.15);
      --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #a78bfa 100%);
      --green: #34d399;
      --amber: #fbbf24;
      --shadow-hero: 0 40px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03);
      --shadow-card: 0 20px 60px rgba(0,0,0,0.4);
      --nav-bg: rgba(10, 10, 20, 0.8);
      --input-bg: rgba(255,255,255,0.05);
      --footer-text: #666;
      --screenshot-dark: block;
      --screenshot-light: none;
      --img-outline: #18181b;
    }

    @media (prefers-color-scheme: light) {
      :root {
        --bg: #f5f5f8;
        --bg-alt: #eeeef2;
        --bg-card: #ffffff;
        --bg-card-hover: #f8f8fc;
        --border: rgba(0,0,0,0.08);
        --border-strong: rgba(0,0,0,0.12);
        --text: #1a1a2e;
        --text-secondary: #3a3a50;
        --text-muted: #6b6b80;
        --primary: #7C3AED;
        --primary-light: #6d28d9;
        --primary-glow: rgba(124, 58, 237, 0.08);
        --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #a78bfa 100%);
        --green: #059669;
        --amber: #d97706;
        --shadow-hero: 0 40px 80px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.05);
        --shadow-card: 0 10px 40px rgba(0,0,0,0.06);
        --nav-bg: rgba(245, 245, 248, 0.85);
        --input-bg: rgba(0,0,0,0.04);
        --footer-text: #999;
        --screenshot-dark: none;
        --screenshot-light: block;
        --img-outline: white;
      }
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a { color: var(--primary-light); text-decoration: none; }
    a:hover { text-decoration: underline; }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Theme-aware screenshot switching */
    .screenshot-dark { display: var(--screenshot-dark); }
    .screenshot-light { display: var(--screenshot-light); }

    /* ===== NAV ===== */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: var(--nav-bg);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
    }

    nav .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.1rem;
      color: var(--text);
    }

    .nav-logo img { width: 32px; height: 32px; }
    .nav-logo .logo-cart { font-weight: 700; }
    .nav-logo .logo-console { font-weight: 300; color: var(--primary-light); }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }

    .nav-links a {
      color: var(--text-muted);
      font-size: 0.875rem;
      font-weight: 500;
      transition: color 0.2s;
    }

    .nav-links a:hover { color: var(--text); text-decoration: none; }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 24px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      text-decoration: none !important;
    }

    .btn-primary {
      background: var(--gradient-primary);
      color: white;
      box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
    }

    .btn-secondary {
      background: var(--input-bg);
      color: var(--text);
      border: 1px solid var(--border-strong);
    }

    .btn-secondary:hover {
      background: var(--bg-card-hover);
      transform: translateY(-2px);
    }

    /* ===== HERO ===== */
    .hero {
      padding: 160px 0 80px;
      text-align: center;
      position: relative;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 800px;
      height: 800px;
      background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 100px;
      background: var(--primary-glow);
      border: 1px solid rgba(124, 58, 237, 0.2);
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--primary-light);
      margin-bottom: 24px;
    }

    .hero-badge .dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--green);
      animation: pulse 2s infinite;
    }

    @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

    .hero h1 {
      font-size: clamp(2.5rem, 6vw, 4.2rem);
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }

    .hero h1 .highlight {
      background: var(--gradient-primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p.hero-sub {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto 40px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .hero-screenshot {
      margin-top: 80px;
      position: relative;
    }

    img.screenshot-dark, img.screenshot-light {
        outline: 6px solid var(--img-outline);
        outline-offset: -4px;
    }

    .hero-screenshot img {
      width: 100%;
      border-radius: 16px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-hero);
    }

    .hero-screenshot::after {
      content: '';
      position: absolute;
      bottom: -40px;
      left: 50%;
      transform: translateX(-50%);
      width: 80%;
      height: 80px;
      background: radial-gradient(ellipse, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
      filter: blur(20px);
    }

    /* ===== SECTION COMMON ===== */
    .section-title {
      text-align: center;
      margin-bottom: 60px;
    }

    .section-title .label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: var(--primary-light);
      margin-bottom: 12px;
    }

    .section-title h2 {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 1.05rem;
      max-width: 560px;
      margin: 0 auto;
    }

    /* ===== HIGHLIGHTS / KEY POINTS ===== */
    .highlights {
      padding: 100px 0;
      background: var(--bg-alt);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
    }

    .highlight-item {
      text-align: center;
      padding: 32px 20px;
      border-right: 1px solid var(--border);
    }

    .highlight-item:last-child { border-right: none; }

    .highlight-item .number {
      font-size: 2.5rem;
      font-weight: 800;
      background: var(--gradient-primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
    }

    .highlight-item .label-text {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-secondary);
      margin-top: 4px;
    }

    .highlight-item .sub-text {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* ===== FEATURES ===== */
    .features { padding: 120px 0; }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 32px;
      transition: all 0.3s ease;
    }

    .feature-card:hover {
      background: var(--bg-card-hover);
      border-color: rgba(124, 58, 237, 0.15);
      transform: translateY(-4px);
    }

    .feature-icon {
      width: 48px; height: 48px;
      border-radius: 12px;
      background: var(--primary-glow);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 1.4rem;
    }

    .feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
    .feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

    /* ===== DEEP DIVE ===== */
    .deep-dive { padding: 120px 0; background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

    .deep-dive-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      margin-bottom: 100px;
    }

    .deep-dive-block:last-child { margin-bottom: 0; }
    .deep-dive-block.reverse { direction: rtl; }
    .deep-dive-block.reverse > * { direction: ltr; }

    .deep-dive-text .tag {
      display: inline-block;
      font-size: 0.7rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--primary-light);
      background: var(--primary-glow);
      padding: 4px 12px;
      border-radius: 100px;
      margin-bottom: 16px;
    }

    .deep-dive-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .deep-dive-text p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .deep-dive-text ul {
      list-style: none;
    }

    .deep-dive-text ul li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-secondary);
      padding: 6px 0;
    }

    .deep-dive-text ul li .icon { flex-shrink: 0; font-size: 1rem; }

    .deep-dive-visual img {
      width: 100%;
      border-radius: 16px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
    }

    /* ===== SCREENSHOTS ===== */
    .screenshots { padding: 120px 0; }

    .screenshots-carousel {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding: 20px 0;
      -ms-overflow-style: none;
      scrollbar-width: none;
    }

    .screenshots-carousel::-webkit-scrollbar { display: none; }

    .screenshot-item {
      flex: 0 0 80%;
      max-width: 800px;
      scroll-snap-align: center;
    }

    .screenshot-item img {
      width: 100%;
      border-radius: 16px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease;
    }

    .screenshot-item img:hover { transform: scale(1.02); }

    .screenshot-item .caption {
      text-align: center;
      margin-top: 16px;
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* ===== VIDEO ===== */
    .video-section { padding: 120px 0; background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

    .video-container {
      max-width: 900px;
      margin: 0 auto;
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-hero);
      position: relative;
      background: var(--bg-card);
      aspect-ratio: 16/9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .video-placeholder { text-align: center; color: var(--text-muted); }

    .video-placeholder .play-btn {
      width: 80px; height: 80px;
      border-radius: 50%;
      background: var(--gradient-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
    }

    .video-placeholder .play-btn:hover {
      transform: scale(1.1);
      box-shadow: 0 12px 40px rgba(124, 58, 237, 0.5);
    }

    .video-placeholder .play-btn svg { width: 32px; height: 32px; fill: white; margin-left: 4px; }

    /* ===== PRICING ===== */
    .pricing { padding: 120px 0; }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
      max-width: 780px;
      margin: 0 auto;
    }

    .pricing-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 40px 32px;
      position: relative;
      transition: all 0.3s ease;
    }

    .pricing-card:hover { transform: translateY(-4px); }

    .pricing-card.popular {
      border-color: var(--primary);
      box-shadow: 0 0 0 1px var(--primary), 0 20px 60px rgba(124, 58, 237, 0.15);
    }

    .popular-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--gradient-primary);
      color: white;
      padding: 4px 20px;
      border-radius: 100px;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .pricing-card .plan-name { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
    .pricing-card .plan-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }

    .pricing-card .price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 8px; }
    .pricing-card .price .currency { font-size: 1.4rem; font-weight: 700; color: var(--text-muted); }
    .pricing-card .price .amount { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
    .pricing-card .price .period { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
    .pricing-card .billing-note { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 28px; }

    .pricing-card .savings {
      display: inline-block;
      background: rgba(52, 211, 153, 0.1);
      color: var(--green);
      padding: 4px 12px;
      border-radius: 100px;
      font-size: 0.75rem;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .pricing-card ul { list-style: none; margin-bottom: 32px; }

    .pricing-card ul li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 8px 0;
    }

    .pricing-card ul li .check {
      width: 18px; height: 18px;
      border-radius: 50%;
      background: rgba(52, 211, 153, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .pricing-card ul li .check svg { width: 10px; height: 10px; stroke: var(--green); stroke-width: 3; fill: none; }
    .pricing-card .btn { width: 100%; justify-content: center; }

    /* ===== FOUNDERS BANNER ===== */
    .founders-banner {
      max-width: 780px;
      margin: 40px auto 0;
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(167, 139, 250, 0.05) 100%);
      border: 1px solid rgba(124, 58, 237, 0.2);
      border-radius: 16px;
      padding: 28px 32px;
      text-align: center;
    }

    .founders-banner h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
    .founders-banner p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 12px; }

    .founders-banner .code {
      display: inline-block;
      background: var(--input-bg);
      border: 1px dashed var(--border-strong);
      padding: 8px 24px;
      border-radius: 8px;
      font-family: 'SF Mono', 'Fira Code', monospace;
      font-size: 1.1rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      color: var(--primary-light);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .founders-banner .code:hover { background: rgba(124, 58, 237, 0.15); }
    .founders-banner .code-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 8px; }

    /* ===== FAQ ===== */
    .faq { padding: 120px 0; background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

    .faq-grid {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-item:last-child { border-bottom: none; }

    .faq-question {
      width: 100%;
      background: none;
      border: none;
      color: var(--text);
      font-family: inherit;
      font-size: 1rem;
      font-weight: 600;
      text-align: left;
      padding: 24px 0;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: color 0.2s;
    }

    .faq-question:hover { color: var(--primary-light); }

    .faq-question .chevron {
      width: 20px; height: 20px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
      color: var(--text-muted);
    }

    .faq-item.open .faq-question .chevron { transform: rotate(180deg); }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
      padding-bottom: 24px;
    }

    .faq-answer p {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    /* ===== CONTACT ===== */
    .contact { padding: 120px 0; }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 60px;
      max-width: 900px;
      margin: 0 auto;
    }

    .contact-info h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
    .contact-info p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; margin-bottom: 24px; }

    .contact-info .contact-detail {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 0;
      font-size: 0.9rem;
      color: var(--text-secondary);
    }

    .contact-info .contact-detail .contact-icon {
      width: 40px; height: 40px;
      border-radius: 10px;
      background: var(--primary-glow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group { display: flex; flex-direction: column; gap: 6px; }
    .form-group label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }

    .form-group input,
    .form-group textarea {
      background: var(--bg-card);
      border: 1px solid var(--border-strong);
      border-radius: 10px;
      padding: 12px 16px;
      font-family: inherit;
      font-size: 0.9rem;
      color: var(--text);
      transition: border-color 0.2s;
      outline: none;
    }

    .form-group input:focus,
    .form-group textarea:focus { border-color: var(--primary); }
    .form-group textarea { resize: vertical; min-height: 120px; }

    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

    .form-success {
      display: none;
      text-align: center;
      padding: 40px 20px;
      color: var(--green);
      font-weight: 600;
    }

    /* ===== FOOTER ===== */
    footer {
      padding: 60px 0;
      border-top: 1px solid var(--border);
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 1rem;
      color: var(--text);
    }

    .footer-logo img { width: 24px; height: 24px; }
    .footer-logo .logo-cart { font-weight: 700; }
    .footer-logo .logo-console { font-weight: 300; color: var(--primary-light); }

    .footer-links {
      display: flex;
      gap: 24px;
      list-style: none;
    }

    .footer-links a { color: var(--text-muted); font-size: 0.8rem; font-weight: 500; }
    .footer-links a:hover { color: var(--text); text-decoration: none; }

    footer .copyright { color: var(--footer-text); font-size: 0.8rem; width: 100%; text-align: center; margin-top: 16px; }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hero { padding: 120px 0 60px; }
      .hero-screenshot { margin-top: 48px; }
      .screenshot-item { flex: 0 0 90%; }
      .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
      .features-grid { grid-template-columns: 1fr; }
      .highlights-grid { grid-template-columns: repeat(2, 1fr); }
      .highlight-item:nth-child(2) { border-right: none; }
      .highlight-item { border-bottom: 1px solid var(--border); }
      .deep-dive-block, .deep-dive-block.reverse { grid-template-columns: 1fr; direction: ltr; }
      .contact-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .footer-inner { justify-content: center; text-align: center; }
      .footer-links { justify-content: center; }
    }

/* GDPR Cookie Banner */
.cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  z-index: 9999;
  box-shadow: var(--shadow-hero);
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.cookie-content p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
}

.cookie-buttons {
  display: flex;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .cookie-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}