/* ============================================================
   webdfw landing — main.css
   Mobile-first. Themes via [data-theme]. WCAG-AA contrast.
   ============================================================ */

/* ---------- Design tokens (default = light/auto) ---------- */
:root {
  --bg: #f6f8fc;
  --bg-2: #eef2f9;
  --surface: #ffffff;
  --text: #0c1426;
  --muted: #50607a;
  --accent: #155cf0;
  --accent-2: #0bb6d6;
  --accent-contrast: #ffffff;
  --border: rgba(12, 20, 38, 0.10);
  --shadow: 0 10px 40px rgba(16, 33, 70, 0.10);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1140px;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", var(--font-body);
  --grad: radial-gradient(1200px 600px at 80% -10%, rgba(11,182,214,0.14), transparent 60%),
          radial-gradient(900px 500px at 0% 0%, rgba(21,92,240,0.12), transparent 55%);
}

/* Auto theme follows the OS when no explicit theme is chosen */
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --bg: #0a1020; --bg-2: #0c1426; --surface: #121c33; --text: #eaf0ff;
    --muted: #9fb0d0; --accent: #5b93ff; --accent-2: #34d3ee; --accent-contrast: #06122c;
    --border: rgba(255,255,255,0.12); --shadow: 0 18px 50px rgba(0,0,0,0.45);
    --grad: radial-gradient(1200px 600px at 80% -10%, rgba(52,211,238,0.16), transparent 60%),
            radial-gradient(900px 500px at 0% 0%, rgba(91,147,255,0.16), transparent 55%);
  }
}

[data-theme="dark"] {
  --bg: #0a1020; --bg-2: #0c1426; --surface: #121c33; --text: #eaf0ff;
  --muted: #9fb0d0; --accent: #5b93ff; --accent-2: #34d3ee; --accent-contrast: #06122c;
  --border: rgba(255,255,255,0.12); --shadow: 0 18px 50px rgba(0,0,0,0.45);
  --grad: radial-gradient(1200px 600px at 80% -10%, rgba(52,211,238,0.16), transparent 60%),
          radial-gradient(900px 500px at 0% 0%, rgba(91,147,255,0.16), transparent 55%);
}

[data-theme="starship"] {
  --bg: #050507; --bg-2: #0a0a0e; --surface: #12101a; --text: #ffd9a8;
  --muted: #c8a7d6; --accent: #ff9f1c; --accent-2: #c39bff; --accent-contrast: #1a0d00;
  --border: rgba(255,159,28,0.30); --shadow: 0 0 0 rgba(0,0,0,0);
  --radius: 4px 22px 22px 4px; --radius-sm: 4px 14px 14px 4px;
  --grad: radial-gradient(1000px 500px at 90% -10%, rgba(195,155,255,0.10), transparent 60%),
          radial-gradient(900px 500px at -5% 0%, rgba(255,159,28,0.10), transparent 55%);
}

[data-theme="terminal"] {
  --bg: #000a04; --bg-2: #001106; --surface: #02160b; --text: #4dffa0;
  --muted: #2fbf78; --accent: #00ff88; --accent-2: #29ffd0; --accent-contrast: #001b0d;
  --border: rgba(0,255,136,0.22); --shadow: 0 0 30px rgba(0,255,136,0.06);
  --font-body: "JetBrains Mono", ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, monospace;
  --font-display: var(--font-body);
  --radius: 6px; --radius-sm: 4px;
  --grad: radial-gradient(900px 500px at 80% -10%, rgba(0,255,136,0.08), transparent 60%);
}

[data-theme="blueprint"] {
  --bg: #061a33; --bg-2: #08203f; --surface: #0a2a52; --text: #d8e9ff;
  --muted: #8fb6e6; --accent: #38bdf8; --accent-2: #7dd3fc; --accent-contrast: #04101f;
  --border: rgba(125,211,252,0.28); --shadow: 0 18px 50px rgba(0,0,0,0.35);
  --grad: linear-gradient(transparent 95%, rgba(125,211,252,0.10) 95%) 0 0 / 28px 28px,
          linear-gradient(90deg, transparent 95%, rgba(125,211,252,0.10) 95%) 0 0 / 28px 28px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }   /* make the hidden attribute authoritative (consent banner) */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  background-image: var(--grad);
  background-attachment: fixed;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -0.01em; margin: 0 0 .4em; }
h1 { font-size: clamp(2rem, 6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 4.2vw, 2.4rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--accent); color: var(--accent-contrast);
  padding: 10px 16px; border-radius: 8px; transition: top .2s;
}
.skip-link:focus { top: 12px; }

/* ---------- Buttons ---------- */
.btn {
  --pad-y: 13px; --pad-x: 22px;
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  padding: var(--pad-y) var(--pad-x); border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer; text-align: center;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, filter .2s;
  min-height: 48px;
}
.btn-sm { --pad-y: 9px; --pad-x: 15px; font-size: .92rem; min-height: 40px; }
.btn-primary { background: var(--accent); color: var(--accent-contrast); box-shadow: 0 8px 24px -8px var(--accent); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); }
[data-theme="terminal"] .btn, [data-theme="starship"] .btn { text-transform: uppercase; letter-spacing: .06em; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text); font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.brand-mark { color: var(--accent); flex: none; }
.brand-accent { color: var(--accent); }
.header-controls { display: flex; align-items: center; gap: 8px; }
.control { display: inline-flex; }          /* theme + language always reachable, incl. mobile */
.control-label { display: none; }
#lang-select, #theme-select {
  font-family: var(--font-body); font-size: .88rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 9px; min-height: 40px; cursor: pointer; max-width: 38vw;
}
/* the header CTA is redundant with the hero form on small screens */
.header-controls .btn-primary { display: none; }
@media (min-width: 600px) { .header-controls .btn-primary { display: inline-flex; } .header-controls { gap: 10px; } }

/* ---------- Hero ---------- */
.hero { padding: 44px 0 24px; }
.hero-grid { display: grid; gap: 32px; align-items: center; }
.eyebrow {
  display: inline-block; font-family: var(--font-display); font-weight: 600;
  font-size: .8rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent-2); margin: 0 0 14px;
}
.hero-copy h1 { margin-bottom: .35em; }
.lead { font-size: clamp(1.05rem, 2.4vw, 1.28rem); color: var(--muted); max-width: 36ch; }
.hero-visual { order: -1; }                 /* image above copy on mobile */
.hero-art { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.hero-art img { width: 100%; }
.hero-glow { position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 50% at 50% 50%, transparent, color-mix(in srgb, var(--bg) 30%, transparent)); }

/* CTA form */
.cta-form { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 10px; max-width: 480px; }
.cta-form input[type="email"] {
  flex: 1 1 200px; min-width: 0; font-family: var(--font-body); font-size: 1rem;
  padding: 13px 15px; min-height: 48px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.cta-form input::placeholder { color: var(--muted); opacity: .8; }
.cta-form .btn { flex: 0 0 auto; }
.cta-micro { font-size: .88rem; color: var(--muted); margin: 0; }

/* Trust strip under hero CTA */
.trust-strip { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 16px; padding: 16px 0 0; margin: 0; }
.trust-strip li { position: relative; padding-left: 22px; font-size: .86rem; color: var(--muted); font-weight: 500; }
.trust-strip li::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background: var(--accent-2); border-radius: 50%;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='black' d='M6.5 11.2 3.3 8l-1 1 4.2 4.2L14 5.7l-1-1z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='black' d='M6.5 11.2 3.3 8l-1 1 4.2 4.2L14 5.7l-1-1z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.cta-form.sent + .cta-micro::before { content: "✓ "; color: var(--accent-2); }

/* ---------- Generic section ---------- */
.section { padding: 56px 0; }
.section-head { max-width: 60ch; margin: 0 auto 36px; text-align: center; }
.section-sub { color: var(--muted); font-size: 1.05rem; }

/* ---------- Flow infographic ---------- */
.flow { margin: 0 auto 30px; max-width: 840px; }
@media (min-width: 720px) { .flow { margin-bottom: 60px; } }
.flow-svg { width: 100%; height: auto; display: block; }
.flow-rail { stroke: var(--border); stroke-width: 2.5; stroke-dasharray: 4 5; fill: none; }
.flow-arrow { fill: var(--accent); }
.flow-env rect { fill: var(--accent); }
.flow-env .flow-flap { stroke: var(--surface); stroke-width: 2; fill: none; }
.flow-threat rect { fill: #ff5c5c; }
.flow-clean rect { fill: var(--accent-2); }
.flow-box { fill: var(--surface); stroke: var(--border); stroke-width: 1.5; }
.flow-shield > path:first-of-type { fill: color-mix(in srgb, var(--accent-2) 14%, transparent); stroke: var(--accent-2); stroke-width: 2; stroke-linejoin: round; }
.flow-check { stroke: var(--accent-2); }
.flow-tray { stroke: var(--accent-2); }
.flow-brand { fill: var(--text); font-family: var(--font-display); font-weight: 700; font-size: 19px; }
.flow-chip { fill: color-mix(in srgb, var(--accent) 14%, transparent); stroke: var(--border); stroke-width: 1; }
.flow-chiptext { fill: var(--accent); font-family: var(--font-body); font-weight: 600; font-size: 12px; }
.flow-label { fill: var(--muted); font-family: var(--font-body); font-weight: 600; font-size: 15px; }
.flow-bad { fill: #ff5c5c; font-family: var(--font-body); font-weight: 600; font-size: 13px; }
.js .flow-rail { animation: flowdash 1.1s linear infinite; }
@keyframes flowdash { to { stroke-dashoffset: -18; } }
@media (prefers-reduced-motion: reduce) { .js .flow-rail { animation: none; } }

/* ---------- Pipeline ---------- */
.pipeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: step; }
.pipe-node {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 18px 18px 60px; box-shadow: var(--shadow);
}
.pipe-node h3 { margin: 0 0 4px; }
.pipe-node p { margin: 0; color: var(--muted); font-size: .96rem; }
.pipe-ico {
  position: absolute; left: 14px; top: 16px; width: 34px; height: 34px;
  display: grid; place-items: center; border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent); font-size: 1.1rem; border: 1px solid var(--border);
}
.pipe-start .pipe-ico, .pipe-end .pipe-ico { background: color-mix(in srgb, var(--accent-2) 20%, transparent); color: var(--accent-2); }
.pipe-end { border-color: color-mix(in srgb, var(--accent-2) 40%, var(--border)); }

/* ---------- Cards ---------- */
.cards { display: grid; gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); transition: transform .2s, border-color .2s; }
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
.card h3 { color: var(--accent); }
.card p { margin: 0; color: var(--muted); font-size: .98rem; }

/* ---------- Compatibility ---------- */
.compat-inner { text-align: center; max-width: 760px; margin: 0 auto; }
.compat-list { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; padding: 0; margin: 18px 0 14px; }
.compat-list li {
  font-family: var(--font-display); font-weight: 600; font-size: .98rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 999px; padding: 8px 16px;
}
[data-theme="starship"] .compat-list li { border-radius: var(--radius-sm); text-transform: uppercase; letter-spacing: .04em; }

/* ---------- AI statement ---------- */
.ai-inner { max-width: 760px; margin: 0 auto; text-align: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 40px 28px; box-shadow: var(--shadow); }
.ai-badge { display: inline-block; font-family: var(--font-display); font-weight: 600; font-size: .78rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--accent-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 5px 13px; margin-bottom: 16px; }
.ai-body { font-size: 1.12rem; color: var(--text); max-width: 56ch; margin: 0 auto; }
.ai-body strong { color: var(--accent); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: grid; gap: 10px; }
.faq-list details {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 4px 18px;
}
.faq-list summary {
  cursor: pointer; font-family: var(--font-display); font-weight: 600; font-size: 1.04rem;
  padding: 14px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; line-height: 1; transition: transform .2s; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { margin: 0 0 16px; color: var(--muted); }

/* ---------- Final CTA ---------- */
.final-cta { text-align: center; }
.final-inner { max-width: 640px; margin: 0 auto;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, var(--surface)), var(--surface));
  border: 1px solid var(--border); border-radius: calc(var(--radius) + 6px); padding: 48px 28px; box-shadow: var(--shadow); }
.cta-form-lg { justify-content: center; margin-left: auto; margin-right: auto; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; margin-top: 24px; }
.footer-inner { text-align: center; color: var(--muted); }
.footer-brand { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--text); margin: 0 0 4px; }
.footer-tag { margin: 0 0 6px; font-size: .95rem; }
.footer-copy { margin: 0; font-size: .85rem; }

/* ---------- Consent banner ---------- */
.consent {
  position: fixed; left: 14px; right: 14px; bottom: 14px; z-index: 150; margin: 0 auto; max-width: 520px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.3); padding: 16px 18px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px; justify-content: space-between;
}
.consent p { margin: 0; font-size: .9rem; color: var(--muted); flex: 1 1 220px; }
.consent-actions { display: flex; gap: 8px; }

/* ---------- Reveal animation (only hidden when JS is active) ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; will-change: opacity, transform; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  .btn, .card { transition: none; }
}
/* form error (a11y: announced) */
.form-error { color: #ff6b6b; font-size: .85rem; margin: 6px 0 0; min-height: 1px; }
[data-theme="terminal"] .form-error { color: #ff5f5f; }

/* ---------- Responsive ---------- */
@media (min-width: 720px) {
  .pipeline { grid-template-columns: 1fr 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .section { padding: 72px 0; }
}
@media (min-width: 1000px) {
  .hero { padding: 72px 0 40px; }
  .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 48px; }
  .hero-visual { order: 0; }
  .cards { grid-template-columns: repeat(4, 1fr); }
  .pipeline { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Terminal flavor ---------- */
[data-theme="terminal"] .eyebrow::before { content: "> "; }
[data-theme="terminal"] body { text-shadow: 0 0 1px rgba(0,255,136,.35); }