/* ============================================================
   Akira: bridge page + disclosure pages
   Dark-luxury / soft-glam. Mobile-first (375–430px viewport).
   System fonts only: no third-party requests of any kind.
   ============================================================ */

:root {
  /* --- palette (oklch; sRGB fallbacks applied inline below) --- */
  --bg-0:       oklch(15% 0.022 312);   /* deep plum-black backdrop      */
  --bg-1:       oklch(19% 0.030 318);   /* raised surface                */
  --bg-2:       oklch(24% 0.038 320);   /* card / panel                  */
  --ink:        oklch(96% 0.010 320);   /* primary text                  */
  --ink-soft:   oklch(80% 0.018 320);   /* secondary text                */
  --ink-mute:   oklch(72% 0.020 320);   /* tertiary / captions           */
  --accent:     oklch(78% 0.150 18);    /* warm rose, the glam accent  */
  --accent-2:   oklch(72% 0.130 350);   /* mauve, for the gradient sweep */
  --accent-ink: oklch(20% 0.040 18);    /* text on the accent button     */
  --line:       oklch(36% 0.030 320 / 0.55);
  --glow:       oklch(78% 0.150 18 / 0.40);

  /* --- fluid type scale --- */
  --text-xs:    clamp(0.72rem, 0.69rem + 0.15vw, 0.80rem);
  --text-sm:    clamp(0.84rem, 0.80rem + 0.20vw, 0.94rem);
  --text-base:  clamp(1rem,    0.95rem + 0.30vw, 1.12rem);
  --text-lg:    clamp(1.18rem, 1.05rem + 0.55vw, 1.40rem);
  --text-xl:    clamp(1.55rem, 1.25rem + 1.30vw, 2.15rem);
  --display:    clamp(2.6rem,  1.8rem  + 4.20vw, 4.80rem);

  /* --- spacing rhythm --- */
  --space-1: 0.5rem;
  --space-2: 0.85rem;
  --space-3: 1.35rem;
  --space-4: 2.1rem;
  --space-5: 3.4rem;
  --space-6: 5.4rem;

  /* --- form --- */
  --radius:   18px;
  --radius-pill: 999px;
  --measure:  34rem;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur:  320ms;

  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino,
    "Hoefler Text", Georgia, "Times New Roman", serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;          /* fallback */
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: #ece6ec;             /* fallback */
  color: var(--ink);
  background-color: #161019;  /* fallback */
  background-color: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0;
}

p { margin: 0; }

/* ---------- atmosphere ---------- */
/* a soft glow bloom + a fine grain layer, both fixed and non-interactive */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 42% at 70% 8%,
      oklch(72% 0.130 350 / 0.30), transparent 70%),
    radial-gradient(70% 48% at 12% 96%,
      oklch(78% 0.150 18 / 0.24), transparent 72%);
}
.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- shared shell ---------- */
.shell {
  width: 100%;
  max-width: 32rem;
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* ============================================================
   HERO  (index.html)
   ============================================================ */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1 0 auto;              /* fills the screen; footer sits at the bottom */
  padding-block: var(--space-3) var(--space-2);
  gap: var(--space-2);
}

/* portrait: arch frame, rose glow ring behind it (same light as the page bloom) */
.portrait {
  position: relative;
  margin: 0 0 0.35rem;
  width: min(60vw, 14.5rem, 31svh);
  aspect-ratio: 4 / 5;
}
.portrait::before {
  content: "";
  position: absolute;
  inset: -0.55rem;
  border-radius: 50% 50% 1.9rem 1.9rem / 38% 38% 1.9rem 1.9rem;
  background: linear-gradient(160deg,
    oklch(82% 0.140 24 / 0.70), oklch(74% 0.140 350 / 0.22) 55%, transparent);
  box-shadow: 0 30px 70px -28px var(--glow);
}
.portrait img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 40%;
  border-radius: 50% 50% 1.4rem 1.4rem / 38% 38% 1.4rem 1.4rem;
  background: var(--bg-2);
}

/* tiny disclosure pill above the name, sets the honest tone up front */
.tagline-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 0.5em 1.05em;
  background: oklch(24% 0.038 320 / 0.5);
  backdrop-filter: blur(6px);
}
.tagline-eyebrow .dot {
  width: 0.42em;
  height: 0.42em;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--glow);
}

.persona-name {
  font-size: var(--display);
  letter-spacing: -0.015em;
  background: linear-gradient(
    180deg,
    oklch(98% 0.010 320) 18%,
    oklch(82% 0.090 12) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  /* fallback for clients without background-clip:text */
  color: var(--ink);
}
@supports (-webkit-background-clip: text) or (background-clip: text) {
  .persona-name { color: transparent; }
}

.persona-tagline {
  font-size: var(--text-lg);
  color: var(--ink-soft);
  max-width: 22rem;
  text-wrap: balance;
}

/* ---------- primary CTA ---------- */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  margin-top: var(--space-1);
  padding: 1.05rem 2.2rem;
  width: min(100%, 22rem);
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 650;
  letter-spacing: 0.005em;
  color: var(--accent-ink);
  background: linear-gradient(135deg,
    oklch(82% 0.140 24), oklch(74% 0.140 350));
  border: none;
  border-radius: var(--radius-pill);
  box-shadow:
    0 10px 34px -10px var(--glow),
    inset 0 1px 0 oklch(98% 0.02 320 / 0.5);
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    filter var(--dur) var(--ease);
  text-decoration: none;
}
.cta:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow:
    0 18px 46px -12px var(--glow),
    inset 0 1px 0 oklch(98% 0.02 320 / 0.6);
  text-decoration: none;
}
.cta:active {
  transform: translateY(0);
  filter: brightness(0.98);
}
.cta:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}
.cta .icon {
  width: 1.15em;
  height: 1.15em;
  flex: none;
}

/* "opening soon" state: visibly inert, still legible */
.cta:disabled {
  cursor: not-allowed;
  color: var(--ink-soft);
  background: var(--bg-2);
  border: 1px solid var(--line);
  box-shadow: none;
  transform: none;
  filter: none;
}

/* age + reassurance line under the CTA */
.cta-note {
  font-size: var(--text-sm);
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}
.cta-note strong {
  color: var(--ink);
  letter-spacing: 0.08em;
}

/* ---------- site footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: var(--space-3) calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  margin-top: var(--space-3);
}
.site-footer .shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.3rem;
  font-size: var(--text-sm);
}
.footer-links a { color: var(--ink-soft); }
.footer-meta {
  font-size: var(--text-xs);
  color: var(--ink-mute);
  max-width: var(--measure);
}

/* ============================================================
   POLICY PAGES  (privacy.html / terms.html)
   ============================================================ */
.policy {
  flex: 1 0 auto;
  padding-block: var(--space-5) var(--space-4);
}
.policy .shell { max-width: var(--measure); }

.policy-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: var(--text-sm);
  color: var(--ink-soft);
  margin-bottom: var(--space-3);
}

.policy h1 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-1);
}
.policy .updated {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: var(--space-4);
}

.policy h2 {
  font-size: var(--text-lg);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  color: var(--ink);
}
.policy p,
.policy li {
  color: var(--ink-soft);
  font-size: var(--text-base);
}
.policy p + p { margin-top: var(--space-2); }
.policy ul {
  margin: var(--space-2) 0 0;
  padding-left: 1.2rem;
}
.policy li { margin-bottom: 0.45rem; }
.policy strong { color: var(--ink); }

/* the AI-disclosure callout, visually distinct so it cannot be missed */
.disclosure-note {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: linear-gradient(135deg,
    oklch(24% 0.038 320 / 0.7), oklch(19% 0.030 318 / 0.7));
}
.disclosure-note p { color: var(--ink); }
.disclosure-note .label {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* ---------- browsers without oklch(): hex fallbacks for the load-bearing tokens ---------- */
@supports not (color: oklch(50% 0.1 20)) {
  :root {
    --bg-0: #161019; --bg-2: #2a1f30;
    --ink: #f4eef5; --ink-soft: #cfc4d2; --ink-mute: #b3a6b7;
    --accent: #f59a9a; --accent-ink: #3a1418;
    --line: rgba(88, 70, 96, 0.55); --glow: rgba(245, 154, 154, 0.4);
  }
  .cta { background: linear-gradient(135deg, #f4a3a0, #e48fb0); }
  .cta:disabled { background: #2a1f30; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .cta:hover { transform: none; }
}

/* ---------- enhance up for wider screens ---------- */
@media (min-width: 600px) {
  .shell { padding-inline: var(--space-4); }
  .hero { gap: var(--space-4); }
}