/* ===========================================================
   Aifit Life Platform — さいき葬祭
   Design tokens & base  (lavender / purple system)
   =========================================================== */

:root {
  /* Lavender / purple system */
  --lav:        #F5F2FA;  /* page tint */
  --lav-2:      #EEE8F6;  /* soft section */
  --lav-3:      #E4DBF0;
  --white:      #FFFFFF;

  --purple:     #7C6BA6;  /* primary */
  --purple-mid: #6E5C97;
  --purple-deep:#574878;  /* hover / strong */
  --purple-ink: #2F2942;  /* deepest */

  --ink:        #38353F;  /* headings */
  --text:       #57545F;  /* body */
  --muted:      #918DA0;  /* captions */

  --dark:       #3A3942;  /* dark support band */
  --dark-2:     #2F2E37;

  /* AI accent — the gold differentiator */
  --gold:       #C2A55E;
  --gold-deep:  #9F8238;
  --gold-tint:  #F0E7CF;

  /* theme accents (kept subtle, mostly purple-family) */
  --c-shukatsu: #7C8B72; /* 終活 */
  --c-sogi:     #6E5C97; /* 葬儀 */
  --c-pet:      #B98A52; /* ペット */
  --c-souzoku:  #5E6E82; /* 相続 */

  --line:       rgba(124,107,166,0.20);
  --line-soft:  rgba(124,107,166,0.11);
  --shadow:     0 24px 60px -34px rgba(60,48,96,0.45);
  --shadow-sm:  0 12px 30px -18px rgba(60,48,96,0.40);

  --mincho: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --gothic: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;

  --fz: 1;
  font-size: calc(16px * var(--fz));
  --maxw: 1240px;
}

html[data-fz="large"]  { --fz: 1.16; }
html[data-fz="xlarge"] { --fz: 1.34; }

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--white);
  color: var(--text);
  font-family: var(--gothic);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
html, body { overflow-x: clip; }

h1,h2,h3,h4 { font-family: var(--mincho); font-weight: 600; line-height: 1.42; letter-spacing: .02em; margin: 0; color: var(--ink); }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
::selection { background: var(--lav-3); color: var(--purple-ink); }

/* ---------- utilities ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: clamp(1.75rem, 6vw, 5rem); }

.eyebrow {
  font-family: var(--gothic); font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.3em; color: var(--purple); text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 0.7em;
}
.eyebrow::before { content: ""; width: 1.7em; height: 1px; background: var(--purple); opacity: .6; }

/* primary / secondary buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6em;
  font-weight: 700; font-size: 0.96rem; border-radius: 999px;
  padding: 0.92em 1.7em; border: 1px solid transparent; line-height: 1; white-space: nowrap;
  transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s, background .25s, color .25s, border-color .25s;
}
.btn--primary { background: linear-gradient(135deg, var(--purple) 0%, var(--purple-deep) 100%); color: #fff; box-shadow: 0 14px 30px -14px rgba(87,72,120,0.7); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 38px -14px rgba(87,72,120,0.8); }
.btn--ghost { background: #fff; color: var(--purple-deep); border-color: var(--line); }
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--purple); box-shadow: var(--shadow-sm); }
.btn .ic { width: 1.1em; height: 1.1em; flex: none; }

/* AI gold badge — the differentiator */
.ai-badge {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--gothic); font-weight: 700; color: var(--purple-ink);
  background: linear-gradient(135deg, #EFE2BC, var(--gold) 55%, var(--gold-deep));
  border-radius: 999px; white-space: nowrap;
  box-shadow: 0 8px 22px -10px rgba(159,130,56,0.65), inset 0 1px 0 rgba(255,255,255,.45);
  transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s;
}
.ai-badge:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(159,130,56,0.75), inset 0 1px 0 rgba(255,255,255,.55); }
.ai-badge .spark { color: #fff; text-shadow: 0 1px 2px rgba(120,95,40,.5); font-size: .95em; }
.ai-badge--sm { padding: 0.5em 1.05em; font-size: 0.82rem; }
.ai-badge--md { padding: 0.72em 1.35em; font-size: 0.92rem; }
.ai-badge--lg { padding: 0.95em 1.7em; font-size: 1.02rem; }
.ai-badge .arr { transition: transform .25s; }
.ai-badge:hover .arr { transform: translateX(4px); }

/* reveal — base is the VISIBLE end-state; motion only when allowed */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 1s cubic-bezier(.2,.7,.2,1), transform 1s cubic-bezier(.2,.7,.2,1); }
  .reveal.in { opacity: 1; transform: none; }
}