/* FocusedAI — index.html page styles. Design tokens live in theme.css */

    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

    body {
      background: var(--c-bg);
      color: var(--c-text);
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    ::selection { background: rgba(37,99,235,0.18); color: #0f1b2d; }
    ::-webkit-scrollbar { width: 4px; height: 4px; }
    ::-webkit-scrollbar-track { background: var(--c-bg); }
    ::-webkit-scrollbar-thumb { background: var(--c-cyan); border-radius: 2px; }

    /* ── BACKGROUND FX ── */
    .grid-overlay {
      position: fixed; inset: 0; z-index: 0; pointer-events: none;
      background-image:
        linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(ellipse at 50% 0%, #000 35%, transparent 85%);
    }
    .bg-orb { position: fixed; border-radius: 50%; filter: blur(100px); pointer-events: none; z-index: 0; }
    .bg-orb-1 { width: 560px; height: 560px; background: radial-gradient(circle, rgba(14,165,233,0.30), transparent 70%); top: -200px; left: -160px; }
    .bg-orb-2 { width: 520px; height: 520px; background: radial-gradient(circle, rgba(79,70,229,0.22), transparent 70%); top: 38%; right: -200px; }

    .container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
    section { position: relative; z-index: 2; }

    /* skip link */
    .skip-link {
      position: absolute; top: -100px; left: 16px; background: var(--c-cyan); color: var(--c-bg);
      font-weight: 700; font-size: 14px; padding: 12px 20px; border-radius: 0 0 8px 8px;
      z-index: 9999; text-decoration: none; transition: top .2s;
    }
    .skip-link:focus { top: 0; }

    /* ── NAV ── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      padding: 16px 0; transition: background .4s, backdrop-filter .4s, border-color .4s;
      border-bottom: 1px solid transparent;
    }
    nav.scrolled { background: rgba(255,255,255,0.82); backdrop-filter: blur(18px) saturate(1.4); border-bottom-color: var(--c-border); box-shadow: var(--shadow-sm); }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
    .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
    .brand-mark { height: 36px; width: auto; flex-shrink: 0; object-fit: contain; display: block; }
    .brand-text { display: flex; flex-direction: column; line-height: 1; }
    .brand-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; letter-spacing: -0.3px; }
    .brand-name b { background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .brand-name span { color: var(--c-muted); font-weight: 400; }
    .brand-tag { font-family: var(--font-mono); font-size: 8px; letter-spacing: 2.2px; color: var(--c-muted); margin-top: 3px; }

    .nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
    .nav-links a { color: var(--c-muted); text-decoration: none; font-size: 14px; font-weight: 500; letter-spacing: .02em; transition: color .2s; }
    .nav-links a:hover { color: var(--c-cyan); }
    .nav-cta {
      border: 1px solid var(--c-cyan); color: var(--c-cyan) !important; padding: 9px 20px; border-radius: 6px;
      font-size: 13px !important; font-weight: 600 !important; transition: background .2s, color .2s; min-height: 40px; display: inline-flex; align-items: center;
    }
    .nav-cta:hover { background: var(--c-cyan); color: var(--c-bg) !important; }

    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; z-index: 200; }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--c-cyan); border-radius: 2px; transition: transform .3s, opacity .3s; }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .mobile-menu {
      position: fixed; inset: 0; z-index: 150; background: rgba(231,237,244,0.97); backdrop-filter: blur(18px);
      display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px;
      opacity: 0; pointer-events: none; transition: opacity .3s;
    }
    .mobile-menu.open { opacity: 1; pointer-events: all; }
    .mobile-menu a { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--c-text); text-decoration: none; letter-spacing: -.5px; }
    .mobile-menu a:hover { color: var(--c-cyan); }
    .mobile-menu .m-cta { font-size: 16px; background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

    /* ── HERO ── */
    .hero { padding: 150px 0 40px; text-align: center; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px; background: rgba(37,99,235,0.07);
      border: 1px solid rgba(37,99,235,0.2); border-radius: 100px; padding: 7px 16px;
      font-family: var(--font-mono); font-size: 11px; color: var(--c-cyan); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 28px;
    }
    .eyebrow .dot { width: 6px; height: 6px; background: var(--c-cyan); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.6)} }

    .hero-headline { font-family: var(--font-display); font-size: clamp(34px, 5.2vw, 62px); font-weight: 700; line-height: 1.05; letter-spacing: -1px; margin-bottom: 22px; }
    .hero-headline .grad { background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .hero-sub { font-size: clamp(15px, 1.6vw, 18px); color: var(--c-muted); max-width: 600px; margin: 0 auto 38px; line-height: 1.7; }
    .hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

    .btn-primary {
      display: inline-flex; align-items: center; gap: 9px; background: var(--grad-hero); color: #fff;
      font-weight: 600; font-size: 15px; padding: 14px 26px; border-radius: 8px; text-decoration: none;
      border: none; cursor: pointer; transition: transform .2s, box-shadow .2s; box-shadow: 0 0 40px rgba(37,99,235,0.2); min-height: 48px;
    }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 60px rgba(37,99,235,0.38); }
    .btn-ghost { display: inline-flex; align-items: center; gap: 8px; color: var(--c-text); font-weight: 500; font-size: 15px; text-decoration: none; padding: 14px 18px; transition: color .2s; min-height: 48px; }
    .btn-ghost:hover { color: var(--c-cyan); }
    .btn-ghost .arr { transition: transform .2s; } .btn-ghost:hover .arr { transform: translateX(4px); }

    /* ── CAROUSEL ── */
    .pillars { padding: 64px 0 90px; }
    .section-head { text-align: center; max-width: 620px; margin: 0 auto 44px; }
    .section-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .15em; text-transform: uppercase; color: var(--c-cyan); margin-bottom: 14px; }
    .section-tag::before, .section-tag::after { content:''; height:1px; width:24px; background: var(--c-cyan); opacity:.4; }
    .section-title { font-family: var(--font-display); font-size: clamp(24px, 3vw, 38px); font-weight: 700; letter-spacing: -.3px; line-height: 1.15; margin-bottom: 14px; }
    .section-title .grad { background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .section-sub { font-size: 15px; color: var(--c-muted); line-height: 1.7; }

    .carousel { position: relative; --cardw: 720px; --cardgap: 28px; }
    .carousel-viewport {
      overflow-x: auto; overflow-y: hidden; padding: 12px 0;
      scroll-snap-type: x mandatory; scroll-behavior: smooth;
      -ms-overflow-style: none; scrollbar-width: none;
      overscroll-behavior-x: contain;
    }
    .carousel-viewport::-webkit-scrollbar { display: none; }
    .carousel-track { display: flex; gap: var(--cardgap); }
    /* real flex spacers so first & last cards can fully center (scrollWidth-safe) */
    .carousel-track::before, .carousel-track::after {
      content: ''; flex: 0 0 calc((100% - var(--cardw)) / 2); align-self: stretch;
    }

    .biz-card {
      scroll-snap-align: center;
      flex: 0 0 var(--cardw); max-width: var(--cardw); min-height: 440px;
      background: linear-gradient(160deg, var(--c-surface) 0%, var(--c-bg2) 100%);
      border: 1px solid var(--c-border); border-radius: 24px; padding: 44px;
      text-decoration: none; color: var(--c-text); position: relative; overflow: hidden;
      display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: center;
      transition: transform .4s, border-color .4s, box-shadow .4s, opacity .4s;
      opacity: .45; transform: scale(.94);
    }
    .biz-card.active { opacity: 1; transform: scale(1); }
    .biz-card::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
      background: var(--card-grad); opacity: .9;
    }
    .biz-card::after {
      content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%;
      background: var(--card-glow); filter: blur(60px); top: -120px; right: -100px; pointer-events: none; opacity: .5;
    }
    .biz-card.active:hover { transform: scale(1.01); border-color: var(--card-border-hover); box-shadow: 0 24px 70px -20px var(--card-glow); }

    .card-teach { --card-grad: var(--grad-teach); --card-glow: rgba(14,165,233,0.20); --card-border-hover: rgba(14,165,233,0.45); --card-accent: #0891b2; }
    .card-build { --card-grad: var(--grad-build); --card-glow: rgba(37,99,235,0.18); --card-border-hover: rgba(37,99,235,0.45); --card-accent: #2563eb; }
    .card-dev   { --card-grad: var(--grad-dev);   --card-glow: rgba(79,70,229,0.18); --card-border-hover: rgba(79,70,229,0.45); --card-accent: #6d28d9; }

    .card-body { position: relative; z-index: 2; }
    .card-num { font-family: var(--font-mono); font-size: 12px; color: var(--card-accent); letter-spacing: .1em; opacity: .7; margin-bottom: 18px; }
    .card-verb { display: inline-block; font-family: var(--font-mono); font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: var(--card-accent); background: color-mix(in srgb, var(--card-accent) 10%, transparent); border: 1px solid color-mix(in srgb, var(--card-accent) 25%, transparent); padding: 6px 14px; border-radius: 100px; margin-bottom: 20px; }
    .card-title { font-family: var(--font-display); font-size: 30px; font-weight: 700; letter-spacing: -.5px; line-height: 1.1; margin-bottom: 14px; }
    .card-desc { font-size: 15px; color: var(--c-muted); line-height: 1.7; margin-bottom: 22px; }
    .card-feats { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
    .card-feats li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #475569; }
    .card-feats li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--card-accent); flex-shrink: 0; }
    .card-link { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: 15px; color: var(--card-accent); }
    .card-link .arr { transition: transform .25s; }
    .biz-card:hover .card-link .arr { transform: translateX(5px); }
    .card-host { font-family: var(--font-mono); font-size: 11px; color: var(--c-muted); margin-top: 6px; }

    /* card visual */
    .card-visual { position: relative; height: 260px; display: flex; align-items: center; justify-content: center; }
    .visual-ring { position: absolute; border-radius: 50%; border: 1px solid color-mix(in srgb, var(--card-accent) 30%, transparent); }
    .vr-1 { width: 230px; height: 230px; animation: spin 22s linear infinite; }
    .vr-2 { width: 160px; height: 160px; animation: spin 15s linear infinite reverse; }
    .vr-3 { width: 95px; height: 95px; animation: spin 9s linear infinite; }
    .visual-ring::before { content: ''; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--card-accent); top: -4px; left: 50%; transform: translateX(-50%); box-shadow: 0 0 12px var(--card-accent); }
    @keyframes spin { from { transform: rotate(0) } to { transform: rotate(360deg) } }
    .visual-core { width: 76px; height: 76px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 34px; background: color-mix(in srgb, var(--card-accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--card-accent) 30%, transparent); }

    /* controls */
    .carousel-nav { display: flex; align-items: center; justify-content: center; gap: 22px; margin-top: 36px; }
    .car-btn { width: 50px; height: 50px; border-radius: 50%; border: 1px solid var(--c-border); background: var(--c-surface); color: var(--c-text); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: border-color .2s, background .2s, transform .2s; }
    .car-btn:hover { border-color: var(--c-cyan); color: var(--c-cyan); transform: translateY(-2px); }
    .car-btn:active { transform: scale(.94); }
    .car-dots { display: flex; gap: 10px; }
    .car-dot { width: 9px; height: 9px; border-radius: 50%; border: none; background: var(--c-dim); cursor: pointer; padding: 0; transition: background .25s, width .25s; }
    .car-dot.active { background: var(--c-cyan); width: 28px; border-radius: 5px; }

    /* ── ABOUT / ECOSYSTEM STRIP ── */
    .eco { padding: 84px 0; }
    .eco-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--c-border); border: 1px solid var(--c-border); border-radius: 18px; overflow: hidden; }
    .eco-item { background: var(--c-surface); padding: 34px 28px; }
    .eco-num { font-family: var(--font-display); font-size: 34px; font-weight: 700; background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: -1px; line-height: 1; margin-bottom: 8px; }
    .eco-label { font-size: 13px; color: var(--c-muted); letter-spacing: .03em; }

    /* ── WHY ── */
    .why { padding: 84px 0; }
    .why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
    .why-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 16px; padding: 30px; transition: transform .3s, border-color .3s; }
    .why-card:hover { transform: translateY(-4px); border-color: rgba(37,99,235,0.25); }
    .why-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 18px; background: rgba(37,99,235,0.08); border: 1px solid rgba(37,99,235,0.18); }
    .why-title { font-family: var(--font-display); font-size: 17px; font-weight: 600; margin-bottom: 10px; }
    .why-desc { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

    /* ── FAQ ── */
    .faq { padding: 84px 0; }
    .faq-grid { max-width: 800px; margin: 44px auto 0; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; transition: border-color .2s; }
    .faq-item:hover, .faq-item:focus-within { border-color: rgba(37,99,235,0.25); }
    .faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 26px; background: none; border: none; color: var(--c-text); font-family: var(--font-body); font-size: 16px; font-weight: 600; text-align: left; cursor: pointer; min-height: 44px; transition: color .2s; }
    .faq-q:hover { color: var(--c-cyan); }
    .faq-ic { font-size: 22px; color: var(--c-cyan); flex-shrink: 0; font-weight: 300; transition: transform .3s; }
    .faq-item.open .faq-ic { transform: rotate(45deg); }
    .faq-answer { padding: 0 26px 20px; color: var(--c-muted); font-size: 15px; line-height: 1.75; }
    .faq-answer[hidden] { display: none; }
    .faq-answer strong { color: var(--c-text); }

    /* ── CTA ── */
    .cta { padding: 90px 0; }
    .cta-inner { position: relative; background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(79,70,229,0.12)); border: 1px solid rgba(37,99,235,0.2); border-radius: 24px; padding: 70px 48px; text-align: center; overflow: hidden; }
    .cta-inner::before { content: ''; position: absolute; top: -1px; left: 20%; right: 20%; height: 1px; background: var(--grad-hero); }
    .cta-glow { position: absolute; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(37,99,235,0.16), transparent 70%); top: -120px; left: -80px; pointer-events: none; }
    .cta-title { font-family: var(--font-display); font-size: clamp(26px, 3.2vw, 42px); font-weight: 700; letter-spacing: -.4px; line-height: 1.15; margin-bottom: 18px; position: relative; z-index: 1; }
    .cta-title .grad { background: var(--grad-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .cta-sub { font-size: 17px; color: var(--c-muted); max-width: 500px; margin: 0 auto 34px; line-height: 1.6; position: relative; z-index: 1; }
    .cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }
    .cta-contact { margin-top: 28px; font-size: 14px; color: var(--c-muted); position: relative; z-index: 1; }
    .cta-contact a { color: var(--c-cyan); text-decoration: none; }

    /* ── FOOTER ── */
    footer { padding: 60px 0 30px; border-top: 1px solid var(--c-border); }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
    .footer-tagline { font-size: 14px; color: var(--c-muted); line-height: 1.7; margin: 16px 0 22px; max-width: 280px; }
    .footer-social { display: flex; gap: 10px; }
    .soc { width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--c-border); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--c-muted); text-decoration: none; transition: all .2s; }
    .soc:hover { border-color: var(--c-cyan); color: var(--c-cyan); background: rgba(37,99,235,0.08); }
    .footer-col h4 { font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 18px; }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
    .footer-col a { color: var(--c-muted); text-decoration: none; font-size: 14px; transition: color .2s; }
    .footer-col a:hover { color: var(--c-cyan); }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 30px; border-top: 1px solid var(--c-border2); }
    .footer-copy, .footer-legal a { font-size: 13px; color: var(--c-muted); font-family: var(--font-mono); }
    .footer-legal { display: flex; gap: 22px; }
    .footer-legal a { text-decoration: none; } .footer-legal a:hover { color: var(--c-cyan); }

    /* ── REVEAL ── */
    .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .rd1 { transition-delay: .1s } .rd2 { transition-delay: .2s } .rd3 { transition-delay: .3s }

    /* ════ RESPONSIVE ════ */
    @media (max-width: 1024px) {
      .carousel { --cardw: 600px; }
    }
    @media (max-width: 900px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .biz-card { grid-template-columns: 1fr; gap: 24px; min-height: 0; }
      .card-visual { height: 180px; order: -1; }
      .why-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 768px) {
      .carousel { --cardw: 86vw; --cardgap: 16px; }
      .biz-card { padding: 32px 26px; opacity: .5; }
      .biz-card.active { opacity: 1; }
      .eco-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 480px) {
      .container { padding: 0 16px; }
      .hero { padding: 124px 0 28px; }
      .pillars { padding: 40px 0 64px; }
      .card-title { font-size: 24px; }
      .card-visual { height: 150px; }
      .vr-1 { width: 160px; height: 160px; } .vr-2 { width: 110px; height: 110px; } .vr-3 { width: 64px; height: 64px; }
      .visual-core { width: 60px; height: 60px; font-size: 26px; }
      .eco, .why, .faq, .cta { padding: 56px 0; }
      .cta-inner { padding: 44px 22px; }
      .cta-actions { flex-direction: column; align-items: stretch; }
      .btn-primary, .btn-ghost { justify-content: center; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
      .car-btn { width: 44px; height: 44px; }
      .brand-tag { display: none; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    }