/* oka-project tools — 本体サイトとブランド言語を共有（紙のトーン／palt／spark／SVG矢印）
   注意: このサイトのCSPは style-src 'self'（inline style不可）。装飾はすべてここに書く。 */
:root {
  --paper: #fbf6ec; --band: #f4ecdb; --card: #fffdf6;
  --ink: #262016; --body: #6b6152; --faint: #a39781;
  --line: #e5dcc8; --line-strong: #c9bca1;
  --accent: #e8622c; --accent-strong: #c44e20;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', system-ui, sans-serif;
  line-height: 1.9;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 2px; border-radius: 4px; }
.mono, .eyebrow, .badge, .pane-label, .status, .ft { font-family: 'Space Mono', 'Zen Kaku Gothic New', ui-monospace, Consolas, monospace; }
.latin { font-family: 'Space Grotesk', 'Zen Kaku Gothic New', system-ui, sans-serif; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
header.site { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 90%, transparent); backdrop-filter: blur(8px); }
.hd-inner { display: flex; align-items: center; gap: 14px; height: 56px; }
.hd-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; letter-spacing: 0.01em; white-space: nowrap; }
.hd-brand .t { color: var(--accent); font-family: 'Space Grotesk', system-ui, sans-serif; font-weight: 600; }
.hd-brand svg { color: var(--accent); }
.hd-crumb { font-family: 'Space Mono', ui-monospace, monospace; font-size: 10px; color: var(--faint); letter-spacing: 0.06em; }
.hd-back { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; color: var(--body); white-space: nowrap; }
.hd-back svg { transition: transform 0.2s ease; color: var(--accent); }
.hd-back:hover svg { transform: translateX(3px); }
@media (max-width: 640px) {
  .hd-crumb { display: none; }
  .hd-brand { font-size: 14px; }
  .hd-back { font-size: 11px; }
}

/* ---------- hero (tools top) ---------- */
.hero { padding: 64px 0 40px; position: relative; }
.eyebrow { font-size: 11px; letter-spacing: 0.22em; color: var(--accent-strong); margin: 0 0 14px; }
.hero h1 { font-size: clamp(30px, 5.4vw, 44px); font-weight: 900; font-feature-settings: 'palt'; letter-spacing: 0.02em; line-height: 1.35; margin: 0 0 14px; }
.hero h1 .cursor { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero .lead { font-size: 14px; color: var(--body); max-width: 560px; margin: 0 0 22px; }
.principles { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; list-style: none; }
.principles li { font-family: 'Space Mono', ui-monospace, monospace; font-size: 10px; letter-spacing: 0.08em; color: var(--body); border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 14px; background: var(--card); }
.hero .spark { position: absolute; right: 24px; top: 58px; color: var(--accent); opacity: 0.9; }
.hero .spark svg { animation: twinkle 3.2s ease-in-out infinite; }
@keyframes twinkle { 0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.9; } 50% { transform: scale(0.82) rotate(18deg); opacity: 0.55; } }

/* ---------- tool grid ---------- */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; padding: 8px 0 64px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.toolcard { display: flex; flex-direction: column; gap: 12px; padding: 26px 24px 22px; transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
.toolcard:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 10px 28px -18px rgba(38, 32, 22, 0.35); }
.toolcard .icon { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--band); color: var(--ink); }
.toolcard .name { font-size: 17px; font-weight: 700; font-feature-settings: 'palt'; }
.toolcard .name .en { display: block; font-family: 'Space Mono', ui-monospace, monospace; font-size: 10px; font-weight: 400; letter-spacing: 0.12em; color: var(--faint); margin-top: 3px; }
.toolcard .desc { font-size: 13px; color: var(--body); margin: 0; flex: 1; }
.toolcard .meta { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
.badge { font-size: 10px; color: var(--body); border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px 12px; }
.badge.local { color: var(--accent-strong); border-color: color-mix(in srgb, var(--accent) 45%, var(--line-strong)); }
.golink { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: var(--accent-strong); }
.golink svg { transition: transform 0.2s ease; }
.toolcard:hover .golink svg { transform: translateX(4px); }
.toolcard.soon { border-style: dashed; background: transparent; }
.toolcard.soon:hover { transform: none; border-color: var(--line-strong); box-shadow: none; }
.toolcard.soon .icon { background: transparent; color: var(--faint); border-style: dashed; }
.toolcard.soon .name { color: var(--body); }

/* ---------- request strip ---------- */
.request { border-top: 1px solid var(--line); background: var(--band); }
.request .inner { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; padding: 30px 0; }
.request p { margin: 0; font-size: 13px; color: var(--body); flex: 1 1 300px; }
.request strong { color: var(--ink); }
.btn { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; border-radius: 999px; padding: 10px 22px; cursor: pointer; border: none; font-family: inherit; transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-ink { color: var(--paper); background: var(--ink); }
.btn-ink:hover { background: #000; color: #fff; }
.btn-line { color: var(--ink); background: none; border: 1.5px solid var(--ink); padding: 9px 21px; }
.btn-line:hover { border-color: var(--accent-strong); color: var(--accent-strong); }
.btn-accent { color: #fff; background: var(--accent-strong); }
.btn-accent:hover { background: var(--accent); color: #fff; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--line); padding: 26px 0; }
.ft { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; font-size: 10px; color: var(--faint); letter-spacing: 0.04em; }
.ft a { color: var(--body); }
.ft a:hover { color: var(--accent-strong); }
.ft .spacer { flex: 1; }

/* ---------- reveal motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .rv { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
  .rv.in { opacity: 1; transform: none; }
}

/* =====================================================
   Markdown Viewer
   ===================================================== */
.tool-head { padding: 34px 0 6px; }
.tool-head h1 { font-size: clamp(24px, 4vw, 30px); font-weight: 900; font-feature-settings: 'palt'; letter-spacing: 0.02em; margin: 0 0 8px; }
.tool-head h1 .en { font-family: 'Space Grotesk', system-ui, sans-serif; font-weight: 600; }
.tool-head .lead { font-size: 13px; color: var(--body); max-width: 640px; margin: 0; }
.tool-head .lead strong { color: var(--ink); }

.bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.bar .gap { flex: 1; min-width: 8px; }
.bar .btn { font-size: 11.5px; padding: 8px 16px; }
.bar .btn-line { padding: 7px 15px; }
.bar .btn svg { flex: none; }

/* segmented view toggle */
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; background: var(--card); }
.seg button { font-family: 'Space Mono', 'Zen Kaku Gothic New', ui-monospace, monospace; font-size: 10.5px; letter-spacing: 0.04em; color: var(--body); background: none; border: none; padding: 7px 14px; cursor: pointer; transition: background 0.2s ease, color 0.2s ease; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.seg button:not([aria-pressed="true"]):hover { color: var(--ink); }

.viewer { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 14px; }
.pane { display: flex; flex-direction: column; min-width: 0; }
.pane-label { font-size: 10px; letter-spacing: 0.14em; color: var(--body); margin-bottom: 8px; }
.pane-label .dot { color: var(--accent); }
#src {
  width: 100%; flex: 1; min-height: 460px; resize: vertical;
  font-family: 'Space Mono', ui-monospace, Consolas, monospace; font-size: 13px; line-height: 1.8;
  color: var(--ink); background: var(--card); border: 1px solid var(--line-strong); border-radius: 12px; padding: 16px;
}
#src:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 0; }
#preview { flex: 1; min-height: 460px; padding: 22px 26px; overflow-x: auto; overflow-wrap: break-word; }
#preview.empty { display: grid; place-items: center; }
.empty-hint { text-align: center; color: var(--faint); font-size: 12px; line-height: 2.1; }
.empty-hint .big { display: block; font-family: 'Space Mono', ui-monospace, monospace; font-size: 22px; letter-spacing: 0.1em; color: var(--line-strong); margin-bottom: 6px; }

/* view modes */
.view-edit .pane-preview, .view-preview .pane-edit { display: none; }
.view-edit .viewer, .view-preview .viewer { grid-template-columns: 1fr; }
@media (max-width: 860px) {
  .viewer { grid-template-columns: 1fr; }
  .view-split .pane-preview { display: none; } /* モバイルの分割は成立しないため編集を優先表示 */
  #src, #preview { min-height: 55vh; }
}

/* status bar */
.statusbar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; margin-top: 12px; }
.status { font-size: 10px; color: var(--faint); letter-spacing: 0.04em; }
.status.ok { color: var(--accent-strong); }

/* preview typography */
#preview :is(h1, h2, h3, h4) { font-feature-settings: 'palt'; line-height: 1.5; }
#preview > :first-child { margin-top: 0; }
#preview h1 { font-size: 24px; font-weight: 900; }
#preview h2 { font-size: 19px; margin-top: 30px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
#preview h3 { font-size: 16px; margin-top: 24px; }
#preview p, #preview li { font-size: 13.5px; }
#preview a { color: var(--accent-strong); font-weight: 700; }
#preview a:hover { text-decoration: underline; }
#preview code { font-family: 'Space Mono', ui-monospace, monospace; font-size: 12px; background: var(--band); border-radius: 4px; padding: 1px 6px; }
#preview pre { background: var(--band); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; line-height: 1.7; }
#preview pre code { background: none; padding: 0; }
#preview blockquote { margin: 1em 0; padding: 2px 0 2px 14px; border-left: 3px solid var(--accent); color: var(--body); }
#preview hr { border: none; border-top: 1px solid var(--line-strong); margin: 28px 0; }
#preview table { border-collapse: collapse; display: block; overflow-x: auto; max-width: 100%; }
#preview th, #preview td { border: 1px solid var(--line-strong); padding: 6px 14px; font-size: 13px; }
#preview th { background: var(--band); }
#preview img { max-width: 100%; border-radius: 8px; }
#preview input[type="checkbox"] { accent-color: var(--accent-strong); }

/* drag & drop overlay */
#dropzone { position: fixed; inset: 0; z-index: 50; display: none; place-items: center; background: color-mix(in srgb, var(--paper) 82%, transparent); backdrop-filter: blur(3px); }
body.drop #dropzone { display: grid; }
#dropzone .box { border: 2px dashed var(--accent); border-radius: 18px; background: var(--card); padding: 44px 64px; text-align: center; pointer-events: none; }
#dropzone .box .l1 { font-size: 17px; font-weight: 900; font-feature-settings: 'palt'; }
#dropzone .box .l2 { font-family: 'Space Mono', ui-monospace, monospace; font-size: 10px; letter-spacing: 0.1em; color: var(--faint); margin-top: 6px; }

.foot-note { font-size: 11px; color: var(--faint); margin: 22px 0 0; }
.foot-note a { color: var(--accent-strong); font-weight: 700; }
main.viewer-page { padding-bottom: 64px; }

/* 印刷 = PDF出力: プレビューだけを紙に出す */
@media print {
  header.site, footer.site, .tool-head .lead, .bar, .seg, .statusbar, .pane-edit, .pane-label, .foot-note, #dropzone, .tool-head h1 { display: none !important; }
  body { background: #fff; color: #000; }
  main { padding: 0; }
  .wrap { max-width: none; padding: 0; }
  .viewer { display: block; margin: 0; }
  .pane-preview { display: block !important; }
  #preview { border: none; min-height: 0; padding: 0; background: #fff; overflow: visible; }
  #preview pre { white-space: pre-wrap; }
}