/* ═══ 調香筆記 · Perfume Notes ═══ */

:root {
  --bg:            #faf7f3;
  --bg-soft:       #f3ede5;
  --surface:       #ffffff;
  --surface-2:     #f7f2ec;
  --line:          #e2d8cc;
  --line-soft:     #efe7dd;
  --text:          #2b2520;
  --text-soft:     #6b5f54;
  --text-faint:    #9a8d80;
  --accent:        #8a5a3b;
  --accent-soft:   #f0e2d6;
  --top:           #c9963f;
  --middle:        #b0567c;
  --base:          #4d7a63;
  --warn:          #b4552a;
  --warn-bg:       #fdf0e8;
  --danger:        #a63232;
  --danger-bg:     #fceceb;
  --radius:        12px;
  --shadow:        0 1px 2px rgba(43,37,32,.05), 0 8px 24px -12px rgba(43,37,32,.18);
  --mono:          ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}

html[data-theme="dark"] {
  --bg:            #17140f;
  --bg-soft:       #1e1a15;
  --surface:       #221d17;
  --surface-2:     #2a241d;
  --line:          #3a3229;
  --line-soft:     #2e281f;
  --text:          #ece5db;
  --text-soft:     #b3a89a;
  --text-faint:    #857a6c;
  --accent:        #d09a6d;
  --accent-soft:   #3a2c20;
  --top:           #e0b055;
  --middle:        #d47ba0;
  --base:          #6fa587;
  --warn:          #e0894f;
  --warn-bg:       #33241a;
  --danger:        #e07070;
  --danger-bg:     #35201f;
  --shadow:        0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI",
               "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ─── header ─── */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 18px; padding-bottom: 12px;
}
.brand h1 {
  margin: 0; font-size: 22px; font-weight: 600; letter-spacing: .06em;
}
.brand-sub {
  display: block; font-size: 12px; color: var(--text-faint); letter-spacing: .1em;
}
.icon-btn {
  background: none; border: 1px solid var(--line); color: var(--text-soft);
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 16px;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }

.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tab {
  background: none; border: none; border-bottom: 2px solid transparent;
  padding: 10px 14px; font: inherit; font-size: 14px; color: var(--text-soft);
  cursor: pointer; white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ─── panels ─── */
.panel { display: none; padding: 28px 0 60px; }
.panel.is-active { display: block; }
.section-lead { color: var(--text-soft); margin: 0 0 20px; font-size: 14px; }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; margin-bottom: 18px;
}
.card h2 {
  margin: 0 0 14px; font-size: 14px; font-weight: 600;
  letter-spacing: .1em; color: var(--text-soft); text-transform: uppercase;
}

/* ─── toolbar / filters ─── */
.toolbar { display: flex; flex-direction: column; gap: 12px; margin-bottom: 14px; }
#search {
  width: 100%; padding: 11px 14px; font: inherit;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius);
}
#search:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--surface); border: 1px solid var(--line); color: var(--text-soft);
  padding: 5px 13px; border-radius: 100px; font: inherit; font-size: 13px; cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.is-on { background: var(--accent); border-color: var(--accent); color: #fff; }
.count { font-size: 13px; color: var(--text-faint); margin: 0 0 14px; }

/* ─── material grid ─── */
.grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.mat {
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--line); border-radius: var(--radius);
  padding: 14px 15px; cursor: pointer; text-align: left; font: inherit;
  color: var(--text); transition: transform .12s, box-shadow .12s;
}
.mat:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.mat[data-note="top"]    { border-left-color: var(--top); }
.mat[data-note="middle"] { border-left-color: var(--middle); }
.mat[data-note="base"]   { border-left-color: var(--base); }
.mat-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.mat-zh { font-size: 16px; font-weight: 600; }
.mat-en { font-size: 12px; color: var(--text-faint); letter-spacing: .04em; }
.mat-desc {
  font-size: 13px; color: var(--text-soft); margin: 6px 0 10px; line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.mat-meta { display: flex; gap: 6px; flex-wrap: wrap; font-size: 11px; }
.tag {
  background: var(--surface-2); color: var(--text-soft);
  padding: 2px 8px; border-radius: 100px; border: 1px solid var(--line-soft);
}
.tag-warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot-top { background: var(--top); }
.dot-middle { background: var(--middle); }
.dot-base { background: var(--base); }

/* ─── calculator ─── */
.calc-layout { display: grid; grid-template-columns: 1fr 340px; gap: 18px; align-items: start; }
.calc-side { position: sticky; top: 122px; }

.add-row { margin-bottom: 16px; }
#add-select {
  width: 100%; padding: 10px 12px; font: inherit; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--surface-2); color: var(--text);
}
.note-group { margin-bottom: 16px; }
.note-group:not(.has-items) { display: none; }
.note-group h3 {
  font-size: 12px; font-weight: 600; letter-spacing: .1em; color: var(--text-soft);
  margin: 0 0 8px; display: flex; align-items: center;
}
.chosen-list { display: flex; flex-direction: column; gap: 6px; }
.chosen {
  display: grid; grid-template-columns: 1fr 88px 68px 30px;
  align-items: center; gap: 8px;
  background: var(--surface-2); border: 1px solid var(--line-soft);
  border-radius: 9px; padding: 8px 10px;
}
.chosen-name { font-size: 14px; }
.chosen-name small { color: var(--text-faint); font-size: 11px; margin-left: 5px; }
.chosen input {
  width: 100%; padding: 5px 8px; font: inherit; font-family: var(--mono); font-size: 13px;
  text-align: right; border: 1px solid var(--line); border-radius: 6px;
  background: var(--surface); color: var(--text);
}
.chosen-pct { font-family: var(--mono); font-size: 12px; color: var(--text-faint); text-align: right; }
.chosen-pct.over { color: var(--danger); font-weight: 700; }
.chosen-del {
  background: none; border: none; color: var(--text-faint); cursor: pointer;
  font-size: 18px; line-height: 1; padding: 0;
}
.chosen-del:hover { color: var(--danger); }
.empty-hint { color: var(--text-faint); font-size: 13px; margin: 0; }
.empty-hint[hidden] { display: none; }

.solvent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.reverse-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: end; }
.solvent-grid label, .reverse-grid label {
  display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--text-soft);
}
.unit { color: var(--text-faint); font-size: 11px; }
.solvent-grid input, .reverse-grid input {
  padding: 9px 11px; font: inherit; font-family: var(--mono);
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--surface-2); color: var(--text);
}
.hint { font-size: 12px; color: var(--text-faint); margin: 12px 0 0; line-height: 1.6; }
.reverse-out { font-size: 13px; color: var(--accent); margin: 12px 0 0; font-family: var(--mono); }

.btn {
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  padding: 9px 16px; border-radius: 8px; font: inherit; font-size: 13px; cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: none; color: var(--text-soft); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); filter: none; }

/* ─── result ─── */
.result-card { border-color: var(--accent); }
.big-stat { text-align: center; padding: 6px 0 14px; }
.big-stat span { font-size: 52px; font-weight: 300; letter-spacing: -.02em; font-family: var(--mono); }
.big-stat small { font-size: 20px; color: var(--text-faint); margin-left: 3px; }
.stat-class { margin: 2px 0 0; font-size: 13px; color: var(--accent); letter-spacing: .08em; }

.bar {
  display: flex; height: 8px; border-radius: 100px; overflow: hidden;
  background: var(--surface-2); margin-bottom: 8px;
}
.bar span { transition: width .25s ease; }
.bar-top { background: var(--top); }
.bar-middle { background: var(--middle); }
.bar-base { background: var(--base); }
.ratio-legend {
  display: flex; justify-content: space-between; font-size: 12px; color: var(--text-soft);
}
.ratio-legend b { font-family: var(--mono); color: var(--text); }
.ratio-hint { margin-top: 8px; }

.result-table { width: 100%; border-collapse: collapse; margin: 16px 0 0; font-size: 13px; }
.result-table td { padding: 7px 0; border-bottom: 1px solid var(--line-soft); color: var(--text-soft); }
.result-table td:last-child { text-align: right; color: var(--text); font-family: var(--mono); }
.result-table .row-strong td { font-weight: 700; color: var(--text); }

.warnings { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.warning {
  font-size: 12px; line-height: 1.6; padding: 9px 11px; border-radius: 8px;
  background: var(--warn-bg); color: var(--warn); border-left: 3px solid currentColor;
}
.warning.danger { background: var(--danger-bg); color: var(--danger); }
.result-actions { display: flex; gap: 8px; margin-top: 16px; }
.result-actions .btn { flex: 1; }

.conc-list { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.conc-list li {
  display: flex; justify-content: space-between; padding: 6px 0;
  border-bottom: 1px solid var(--line-soft);
}
.conc-list li:last-child { border: none; }
.conc-list span { font-family: var(--mono); color: var(--text-faint); }

/* ─── recipes ─── */
.recipe-list { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.recipe {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px;
}
.recipe-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.recipe h3 { margin: 0; font-size: 17px; }
.recipe-badge {
  font-size: 11px; font-family: var(--mono); background: var(--accent-soft);
  color: var(--accent); padding: 3px 9px; border-radius: 100px; white-space: nowrap;
}
.recipe-meta { font-size: 12px; color: var(--text-faint); margin: 3px 0 10px; }
.recipe-desc { font-size: 13px; color: var(--text-soft); margin: 0 0 12px; }
.recipe-items { font-size: 12px; font-family: var(--mono); color: var(--text-soft); margin: 0 0 12px; line-height: 1.9; }
.recipe-items i { color: var(--text-faint); font-style: normal; }
.recipe-notes {
  font-size: 12px; color: var(--text-soft); background: var(--surface-2);
  padding: 9px 12px; border-radius: 8px; margin: 0 0 12px; border-left: 3px solid var(--line);
}

/* ─── modal ─── */
.modal {
  position: fixed; inset: 0; background: rgba(20,16,12,.6); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(3px);
}
.modal[hidden] { display: none; }
.modal-box {
  background: var(--surface); border-radius: 16px; padding: 28px;
  max-width: 520px; width: 100%; max-height: 85vh; overflow-y: auto;
  position: relative; box-shadow: var(--shadow);
}
.modal-close {
  position: absolute; top: 14px; right: 16px; background: none; border: none;
  font-size: 26px; line-height: 1; color: var(--text-faint); cursor: pointer;
}
.modal-close:hover { color: var(--text); }
.m-title { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.m-title h2 { margin: 0; font-size: 24px; text-transform: none; letter-spacing: 0; color: var(--text); }
.m-title span { color: var(--text-faint); font-size: 14px; }
.m-tags { display: flex; gap: 6px; flex-wrap: wrap; margin: 12px 0 16px; font-size: 11px; }
.m-desc { font-size: 15px; margin: 0 0 18px; }
.m-row { margin-bottom: 14px; font-size: 13px; }
.m-row b { display: block; color: var(--text-soft); font-size: 11px; letter-spacing: .1em; margin-bottom: 4px; }
.m-blends { display: flex; gap: 6px; flex-wrap: wrap; }
.m-blend {
  background: var(--surface-2); border: 1px solid var(--line-soft); color: var(--text-soft);
  padding: 3px 10px; border-radius: 100px; font-size: 12px; cursor: pointer; font-family: inherit;
}
.m-blend:hover { border-color: var(--accent); color: var(--accent); }
.m-ifra {
  background: var(--warn-bg); color: var(--warn); padding: 11px 13px;
  border-radius: 8px; font-size: 12px; line-height: 1.6; border-left: 3px solid currentColor;
}
.m-ifra.safe { background: var(--surface-2); color: var(--text-soft); border-left-color: var(--line); }

/* ─── 配方摘要 ─── */
.modal-wide .modal-box { max-width: 620px; }

.sheet-name {
  width: 100%; padding: 10px 14px; font: inherit; font-size: 19px; font-weight: 600;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px; margin-bottom: 18px;
}
.sheet-name:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.sheet-name::placeholder { font-weight: 400; color: var(--text-faint); }

.sheet-hero {
  text-align: center; padding: 4px 0 20px; border-bottom: 1px solid var(--line-soft); margin-bottom: 16px;
}
.sheet-pct {
  display: block; font-family: var(--mono); font-size: 46px; font-weight: 300;
  line-height: 1.1; letter-spacing: -.02em;
}
.sheet-pct small { font-size: 19px; color: var(--text-faint); margin-left: 2px; }
.sheet-tier { display: block; color: var(--accent); font-size: 14px; letter-spacing: .08em; margin-top: 2px; }
.sheet-sub { display: block; font-size: 12px; color: var(--text-faint); margin-top: 6px; }

.sheet-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sheet-table th {
  text-align: left; font-size: 11px; letter-spacing: .1em; color: var(--text-faint);
  font-weight: 500; padding: 0 8px 7px 0; border-bottom: 1px solid var(--line);
}
.sheet-table th:nth-child(3), .sheet-table th:nth-child(4) { text-align: right; }
.sheet-table td { padding: 7px 8px 7px 0; border-bottom: 1px solid var(--line-soft); }
.sheet-table td:first-child { color: var(--text-soft); white-space: nowrap; width: 1%; }
.sheet-table td small { color: var(--text-faint); font-size: 11px; margin-left: 4px; }
.sheet-table td.n { text-align: right; font-family: var(--mono); white-space: nowrap; }
.sheet-table td.n.over { color: var(--danger); font-weight: 700; }
.sheet-table tfoot td { color: var(--text-soft); }
.sheet-table tfoot tr:first-child td { padding-top: 12px; }
.sheet-table .sheet-total td { font-weight: 700; color: var(--text); border-bottom: none; }

.sheet-warn {
  font-size: 12px; color: var(--danger); background: var(--danger-bg);
  padding: 9px 11px; border-radius: 8px; margin: 14px 0 0; border-left: 3px solid currentColor;
}

.sheet-md { margin-top: 20px; }
.sheet-md summary {
  font-size: 12px; color: var(--text-soft); cursor: pointer;
  padding: 6px 0; letter-spacing: .04em;
}
.sheet-md summary:hover { color: var(--text); }
.sheet-md textarea {
  width: 100%; margin-top: 6px; padding: 12px 14px; resize: vertical;
  font-family: var(--mono); font-size: 12px; line-height: 1.7;
  background: var(--surface-2); color: var(--text-soft);
  border: 1px solid var(--line); border-radius: 8px; white-space: pre;
}
.sheet-md textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

.sheet-actions { display: flex; gap: 8px; margin-top: 16px; }
.sheet-actions .btn { flex: 1; }

/* ─── guide ─── */
.prose { max-width: 700px; }
.prose h2 { font-size: 24px; margin: 0 0 24px; }
.prose h3 { font-size: 16px; margin: 30px 0 8px; color: var(--accent); }
.prose p, .prose li { color: var(--text-soft); font-size: 14.5px; }
.prose b, .prose strong { color: var(--text); }
.prose a { color: var(--accent); }
.warn-inline {
  background: var(--danger-bg); color: var(--danger) !important;
  padding: 11px 14px; border-radius: 8px; border-left: 3px solid currentColor; font-size: 13px !important;
}

/* ─── footer ─── */
.site-footer {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 24px 0 40px; font-size: 12px; color: var(--text-faint); line-height: 1.7;
}
.site-footer p { margin: 0 0 8px; max-width: 800px; }
.site-footer a { color: var(--text-soft); }
.foot-links { color: var(--text-faint); }

/* ─── responsive ─── */
@media (max-width: 900px) {
  .calc-layout { grid-template-columns: 1fr; }
  .calc-side { position: static; }
}
@media (max-width: 560px) {
  .solvent-grid, .reverse-grid { grid-template-columns: 1fr; }
  .chosen { grid-template-columns: 1fr 76px 58px 26px; gap: 5px; }
  .grid { grid-template-columns: 1fr; }
  .big-stat span { font-size: 44px; }
}