/* ============================================================
   MARUO ACT v4 — 共通chrome（全ページ共通）
   57号 v3「舞台照明の紙」トークン＋ヘッダー／フッター／カーソル／グレイン／磁石／
   軽量リビール（非トップページ用。トップはhome.jsのgsap版が担当＝二重適用しない）
============================================================ */

@font-face {
  font-family: "Shippori Mincho B1";
  font-style: normal; font-weight: 700; font-display: swap;
  src: url("assets/fonts/ShipporiMinchoB1-Bold.subset.woff2") format("woff2");
}

:root {
  --paper: #F4EFE3;
  --paper2: #EDE6D4;
  --paper-dark-text: #EDE6D4;
  --ink: #1A1712;
  --vermilion: #E8391B;
  --vermilion-glow: #FF6B4A;
  --acid: #DDF247; /* v2由来。記事CTA/blockquote等の既存配色を維持するために残置 */
  --mut: #8E8674;
  --mut-dark: #6B6455;
  --stage-dark: #100E0B;
  --line-soft: rgba(237, 230, 212, 0.14);
  --line-ink: rgba(26, 23, 18, 0.14);
  --dot-grid: 22px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --duration-fast: 0.3s;
  --duration-base: 0.7s;
  --duration-slow: 1.2s;

  --header-h: 72px;
  --font-mincho: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-jp: -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "IBM Plex Mono", Menlo, monospace; /* 62. IBM Plex Mono未自己ホスト。フォールバックのみ */
}

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

/* ---------- 紙の繊維グレイン（全ページ・CSSのみ） ---------- */
.ma-grain {
  position: fixed; inset: 0; z-index: 40; pointer-events: none;
  opacity: 0.05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

/* ---------- カーソル（M8。装飾のみ・pointer:fineのみ有効） ---------- */
.ma-cursor {
  position: fixed; left: 0; top: 0; z-index: 55; pointer-events: none;
  opacity: 0; transition: opacity var(--duration-fast) var(--ease-out-expo);
}
.ma-cursor__dot {
  position: absolute; left: -5px; top: -5px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--vermilion);
  box-shadow: 0 0 18px 4px rgba(255, 107, 74, 0.45);
  transition: transform var(--duration-fast) var(--ease-out-expo);
}
.ma-cursor__label {
  position: absolute; left: 14px; top: -10px; white-space: nowrap;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--paper); background: var(--ink); padding: 3px 9px; border-radius: 100px;
  opacity: 0; transform: translateX(-4px);
  transition: opacity var(--duration-fast) var(--ease-out-expo), transform var(--duration-fast) var(--ease-out-expo);
}
body.ma-has-cursor .ma-cursor { opacity: 1; }
.ma-cursor.is-labeled .ma-cursor__dot { transform: scale(1.6); }
.ma-cursor.is-labeled .ma-cursor__label { opacity: 1; transform: translateX(0); }
@media (pointer: coarse) { .ma-cursor { display: none; } }

/* ---------- ヘッダー（M15。固定・スクロールで反転） ---------- */
.ma-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 45;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(16px, 3vw, 40px);
  color: var(--paper-dark-text);
  transition: background var(--duration-fast) linear, color var(--duration-fast) linear, border-color var(--duration-fast) linear;
  border-bottom: 1px solid transparent;
}
.ma-header.is-scrolled {
  background: rgba(244, 239, 227, 0.9);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  color: var(--ink);
  border-bottom-color: var(--line-ink);
}
/* トップ以外は最初から紙背景の上を走る（暗背景ヒーローが無いため） */
body:not(.ma-home) .ma-header {
  background: rgba(244, 239, 227, 0.9);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  color: var(--ink);
  border-bottom-color: var(--line-ink);
}
.ma-header__brand {
  font-family: var(--font-mincho); font-size: 16px; letter-spacing: 0.28em;
  text-decoration: none; color: inherit;
}
.ma-header__cta {
  font-family: var(--font-jp); font-size: 13px; font-weight: 700;
  text-decoration: none; color: var(--paper);
  background: var(--vermilion); border-radius: 100px; padding: 10px 22px;
  display: inline-block;
  transition: background var(--duration-fast) var(--ease-out-expo);
}
.ma-header__cta:hover { background: var(--ink); }

/* ---------- フッター ---------- */
.ma-footer { position: relative; z-index: 1; background: var(--stage-dark); }
.ma-footer__inner { max-width: 900px; margin: 0 auto; padding: 48px 24px 60px; text-align: center; }
.ma-footer__brand { font-family: var(--font-mincho); letter-spacing: 0.3em; margin: 0 0 20px; color: var(--paper-dark-text); }
.ma-footer__nav { display: flex; flex-wrap: wrap; gap: 14px 22px; justify-content: center; }
.ma-footer__nav a { color: var(--mut); text-decoration: none; font-size: 12.5px; font-weight: 700; }
.ma-footer__nav a:hover { color: var(--paper-dark-text); }

/* ---------- 磁石（M9。data-magnetic全ページ共通） ---------- */
[data-magnetic] { display: inline-block; will-change: transform; }

/* ---------- 軽量リビール（M5。非トップページのみ＝トップはhome.jsのgsap版が担当） ---------- */
body:not(.ma-home) [data-reveal] {
  opacity: 0; transform: translateY(24px);
  transition: opacity var(--duration-base) var(--ease-out-expo), transform var(--duration-base) var(--ease-out-expo);
}
body:not(.ma-home) [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .ma-cursor { display: none; }
  body:not(.ma-home) [data-reveal] { opacity: 1; transform: none; transition: none; }
}