/* ─────────────────────────────────────────────────────────────────────────────
   CreateYourOwnAI.org design system (2026-10-22): sleek / futuristic, electric blue.
   Replaces the copper/silicon palette (Von: "no more carbon oranges, now it's electric blues").
   Sources: research/design-inspo/ux-principles.md (type floors, contrast, tap targets),
   oryzo-measurements.md (bold, big, tight headlines), Aether 1 reference (navy + electric, Manrope, mono labels).
   Contrast (measured on --bg): ink 17.3:1, muted 9.6:1, electric 8.2:1, button label on electric 8.2:1.
   ───────────────────────────────────────────────────────────────────────────── */
/* self-hosted static weights: one file per weight renders bold everywhere (variable files fell back to thin in some phone browsers) */
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 400; font-display: swap; src: url(/fonts/manrope-400.woff2) format('woff2'); }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 500; font-display: swap; src: url(/fonts/manrope-500.woff2) format('woff2'); }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 600; font-display: swap; src: url(/fonts/manrope-600.woff2) format('woff2'); }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 700; font-display: swap; src: url(/fonts/manrope-700.woff2) format('woff2'); }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 800; font-display: swap; src: url(/fonts/manrope-800.woff2) format('woff2'); }
@font-face { font-family: 'Azeret Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(/fonts/azeret-mono-400.woff2) format('woff2'); }
@font-face { font-family: 'Azeret Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(/fonts/azeret-mono-500.woff2) format('woff2'); }
@font-face { font-family: 'Azeret Mono'; font-style: normal; font-weight: 600; font-display: swap; src: url(/fonts/azeret-mono-600.woff2) format('woff2'); }
:root {
  --bg: #04070F; --bg-2: #070C18; --bg-3: #0B1222;
  --surface: rgba(232, 238, 248, 0.04); --surface-2: rgba(232, 238, 248, 0.07);
  --line: rgba(232, 238, 248, 0.14); --line-2: rgba(232, 238, 248, 0.26);
  --ink: #E8EEF8; --muted: #A3B2C8;
  --electric: #6FA8FF; --electric-hi: #92BDFF; --electric-deep: #2F6BFF; --electric-glow: rgba(111, 168, 255, 0.35);
  --mint: #7FE3B0;
  --sans: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Azeret Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --gutter: max(16px, 5vw); --radius: 20px; --maxw: 1180px; --nav-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { background: var(--bg); color: var(--ink); font: 400 1.0625rem/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--electric); outline-offset: 3px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ── type ── */
.label { font: 500 0.78rem/1.2 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--electric); }
.h1 { font: 700 clamp(2.8rem, 9vw, 5.6rem)/0.98 var(--sans); letter-spacing: -0.04em; }
.h2 { font: 700 clamp(2.2rem, 6.4vw, 4.2rem)/1.0 var(--sans); letter-spacing: -0.04em; }
.h3 { font: 700 1.35rem/1.25 var(--sans); letter-spacing: -0.02em; }
.lede { font-size: 1.15rem; line-height: 1.6; color: var(--muted); max-width: 40rem; }
.muted { color: var(--muted); }
.glow-text { color: var(--electric); }

/* ── layout ── */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(80px, 13svh, 150px) 0; position: relative; }
.section--alt { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 18%, var(--bg-2) 82%, var(--bg) 100%); }
.section__head { display: grid; gap: 14px; margin-bottom: clamp(32px, 5vw, 56px); max-width: 46rem; }

/* ── buttons: one filled primary per view (UX #2); 48px tall (UX #10) ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 24px; border-radius: 999px;
  font: 600 0.98rem/1 var(--sans); text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
.btn--primary { background: var(--electric); color: #04070F; box-shadow: 0 8px 28px var(--electric-glow); }
.btn--primary:hover { background: var(--electric-hi); box-shadow: 0 10px 36px rgba(111, 168, 255, 0.5); }
.btn--ghost { background: rgba(4, 7, 15, 0.92); color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--electric); }
.btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.link { color: var(--electric); text-underline-offset: 4px; font-weight: 600; display: inline-block; padding: 2px 0; }   /* 24px+ target (WCAG 2.5.8) */
a.link:only-child, .card > a.link { display: inline-flex; align-items: center; min-height: 44px; }
.link:hover { color: var(--electric-hi); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── nav: plain items, menu on phones ── */
.nav { position: fixed; z-index: 50; inset: 0 0 auto 0; height: var(--nav-h); display: flex; align-items: center; gap: 12px; padding: 0 var(--gutter);
  transition: background .3s ease, border-color .3s ease; border-bottom: 1px solid transparent; }
.nav.is-scrolled { background: rgba(4, 7, 15, 0.95); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom-color: var(--line); }
.nav__logo { display: inline-flex; align-items: center; min-height: 44px; font: 700 1rem/1 var(--sans); letter-spacing: -0.01em; text-decoration: none; margin-right: auto; }
.nav__logo span { color: var(--electric); }
.nav__links { display: none; list-style: none; gap: 28px; }
.nav__links a { font: 500 0.95rem/1 var(--sans); color: var(--muted); text-decoration: none; padding: 12px 0; }
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--ink); }
.nav__menu { width: 44px; height: 44px; display: grid; place-items: center; background: none; border: 1px solid var(--line-2); border-radius: 999px; color: var(--ink); cursor: pointer; }
.nav__menu i, .nav__menu i::before { display: block; width: 16px; height: 1.5px; background: currentColor; position: relative; }
.nav__menu i::before { content: ''; position: absolute; top: 5px; } .nav__menu i { transform: translateY(-2.5px); }
@media (min-width: 900px) { .nav__links { display: flex; } .nav__menu { display: none; } }
.sheet { position: fixed; z-index: 60; inset: 0; background: rgba(4, 7, 15, 0.97); display: none; flex-direction: column; padding: 96px var(--gutter) 40px; }
.sheet.open { display: flex; }
.sheet a { font: 700 2rem/1.25 var(--sans); letter-spacing: -0.03em; text-decoration: none; padding: 12px 0; border-bottom: 1px solid var(--line); }
.sheet .sheet__close { position: absolute; top: 10px; right: var(--gutter); width: 44px; height: 44px; border-radius: 999px; background: none; border: 1px solid var(--line-2); color: var(--ink); font: 300 1.4rem/1 var(--sans); cursor: pointer; }
body.nav-open { overflow: hidden; }

/* ── cards ── */
.card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 3vw, 32px); }
.card--glow { border-color: rgba(111, 168, 255, 0.55); box-shadow: 0 0 0 1px rgba(111, 168, 255, 0.15) inset, 0 18px 60px rgba(47, 107, 255, 0.18); }
.icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: rgba(111, 168, 255, 0.12); color: var(--electric); }
.icon svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tags { font: 500 0.78rem/1.5 var(--mono); letter-spacing: 0.06em; color: var(--muted); }
.badge { display: inline-flex; align-items: center; min-height: 28px; padding: 0 12px; border-radius: 999px; background: rgba(111, 168, 255, 0.14); color: var(--electric-hi); font: 600 0.78rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }

/* ── forms ── */
.field { display: grid; gap: 8px; }
.field label { font: 600 0.9rem/1.2 var(--sans); }
.input { width: 100%; min-height: 50px; padding: 12px 16px; border-radius: 14px; background: var(--surface); color: var(--ink); border: 1px solid var(--line-2); font: 400 1rem/1.4 var(--sans); }
.input::placeholder { color: #8796AD; }
.input:focus { outline: none; border-color: var(--electric); box-shadow: 0 0 0 3px rgba(111, 168, 255, 0.2); }
.check { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; font-size: 1rem; color: var(--muted); }
.check input { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--electric); flex: none; }
.note { min-height: 1.5em; font-size: 0.95rem; }
.note--error { color: #FFB4B4; } .note--success { color: var(--mint); }

/* ── footer ── */
.footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--bg); }
.footer__grid { display: grid; gap: 28px; }
.footer__name { font: 700 1.1rem/1.2 var(--sans); }
.footer__nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.footer__nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); text-decoration: none; }
.footer__nav a:hover { color: var(--ink); }
.footer__creed { color: var(--muted); max-width: 46rem; }
.footer__copy { font: 500 0.8rem/1.6 var(--mono); color: var(--muted); }
.footer__copy a { display: inline-flex; align-items: center; min-height: 24px; color: var(--muted); }
@media (min-width: 900px) { .footer__grid { grid-template-columns: 1fr auto; align-items: start; } .footer__creed, .footer__copy { grid-column: 1 / -1; } }

/* UX review 2026-10-23: pure white on near-black tires the eye in long text. Body copy steps down to a cool
   off-white; headings keep the bright ink so the hierarchy reads at a glance. */
:root { --body-ink: #C9D4E3; }
body { color: var(--body-ink); }
h1, h2, h3, h4, .h1, .h2, .h3, .nav__logo, .sheet a { color: var(--ink); }
.lede, .form-intro__copy { color: #B6C3D6; }