:root {
  --bg: #fff5f6;
  --surface: rgba(255,253,251,.86);
  --surface-solid: #fffdfb;
  --ink: #49383d;
  --muted: #927b82;
  --line: rgba(93,60,71,.12);
  --accent: #d65f7b;
  --accent-soft: #f9e7e8;
  --indigo: #849b55;
  --indigo-2: #9bb36f;
  --gold: #d9b37e;
  --green: #849b55;
  --shadow: 0 24px 60px rgba(132, 82, 96, .12);
  --shadow-sm: 0 10px 30px rgba(132, 82, 96, .09);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

[data-theme="dark"] {
  --bg: #241c22;
  --surface: rgba(55,41,50,.88);
  --surface-solid: #372932;
  --ink: #fff4f6;
  --muted: #d2b7bf;
  --line: rgba(255,255,255,.1);
  --accent: #f08ca4;
  --accent-soft: rgba(214,95,123,.2);
  --indigo: #465536;
  --indigo-2: #667a4d;
  --green: #a9bf7b;
  --shadow: 0 24px 60px rgba(20,10,16,.3);
  --shadow-sm: 0 10px 30px rgba(20,10,16,.24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(232,138,160,.18), transparent 30%),
    radial-gradient(circle at 90% 85%, rgba(132,155,85,.13), transparent 32%),
    var(--bg);
  font-family: "Noto Sans KR", sans-serif;
  transition: background .25s ease, color .25s ease;
}
button, input, textarea, select { font: inherit; }
button { color: inherit; }

.ambient { position: fixed; border-radius: 999px; filter: blur(90px); opacity: .3; pointer-events: none; z-index: -1; }
.ambient-a { width: 260px; height: 260px; background: #f0a9b9; top: -90px; left: 35%; }
.ambient-b { width: 330px; height: 330px; background: #b8c98d; right: -110px; bottom: -130px; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 280px minmax(0, 1fr); }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 34px 24px;
  background: rgba(21,26,54,.96); color: #fff; display: flex; flex-direction: column; z-index: 20;
  box-shadow: 20px 0 60px rgba(22,27,55,.12);
}
.brand { display: flex; gap: 14px; align-items: center; margin-bottom: 40px; }
.brand-mark { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.22); border-radius: 17px; font-family: "Noto Serif JP"; font-size: 22px; background: linear-gradient(135deg, rgba(255,255,255,.16), rgba(255,255,255,.04)); }
.brand p { margin: 0; }
.brand-jp { font: 700 18px "Noto Serif JP"; letter-spacing: .06em; }
.brand-ko { margin-top: 4px !important; color: rgba(255,255,255,.58); font-size: 12px; }

.nav-list { display: grid; gap: 8px; }
.nav-item { border: 0; background: transparent; color: rgba(255,255,255,.68); padding: 13px 15px; border-radius: 14px; display: flex; align-items: center; gap: 13px; cursor: pointer; text-align: left; transition: .2s ease; }
.nav-item:hover { background: rgba(255,255,255,.07); color: #fff; }
.nav-item.active { background: linear-gradient(135deg, rgba(255,255,255,.16), rgba(255,255,255,.08)); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.nav-icon { width: 25px; height: 25px; display: grid; place-items: center; font: 600 14px "Noto Serif JP"; }
.sidebar-card { margin-top: auto; padding: 20px; border-radius: 22px; background: linear-gradient(155deg, rgba(255,255,255,.12), rgba(255,255,255,.04)); border: 1px solid rgba(255,255,255,.09); }
.sidebar-card-kicker { margin: 0 0 10px; color: #e9b3a7; font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.sidebar-card-date { margin: 0; font: 700 26px "Noto Serif JP"; }
.sidebar-card-title { margin: 8px 0 18px; color: rgba(255,255,255,.74); font-size: 13px; line-height: 1.55; }
.mini-progress { height: 5px; border-radius: 10px; background: rgba(255,255,255,.12); overflow: hidden; }
.mini-progress span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #d87761, #f1b59d); transition: width .4s ease; }
.sidebar-card-meta { margin: 8px 0 0; font-size: 11px; color: rgba(255,255,255,.5); }
.sidebar-foot { margin: 22px 8px 0; color: rgba(255,255,255,.32); font: 500 11px/1.7 "Noto Serif JP"; letter-spacing: .08em; }

.main-content { min-width: 0; padding: 0 42px 54px; }
.topbar { height: 116px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.topbar-title-wrap { display: flex; align-items: center; gap: 14px; }
.topbar h1 { margin: 2px 0 0; font-size: 28px; letter-spacing: -.035em; }
.eyebrow { margin: 0; color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.topbar-actions, .toolbar-actions, .month-nav, .legend { display: flex; align-items: center; gap: 10px; }
.today-chip { padding: 10px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); color: var(--muted); font-size: 12px; backdrop-filter: blur(12px); }
.icon-btn, .primary-btn, .secondary-btn, .ghost-btn, .danger-btn, .file-btn, .text-btn, .danger-text-btn { border: 0; cursor: pointer; transition: .2s ease; }
.icon-btn { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.icon-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.primary-btn { padding: 12px 17px; border-radius: 14px; background: var(--accent); color: #fff; font-weight: 700; box-shadow: 0 10px 24px rgba(201,93,69,.25); }
.primary-btn:hover { transform: translateY(-1px); filter: brightness(1.03); }
.secondary-btn { padding: 11px 15px; border-radius: 13px; background: var(--surface-solid); border: 1px solid var(--line); font-weight: 700; }
.secondary-btn:hover { border-color: rgba(201,93,69,.35); color: var(--accent); }
.ghost-btn { padding: 10px 14px; border-radius: 12px; background: transparent; border: 1px solid var(--line); }
.text-btn { background: transparent; color: var(--accent); font-weight: 700; padding: 6px 0; }
.danger-btn { padding: 12px 16px; border-radius: 14px; background: #bd4f4f; color: #fff; font-weight: 700; }
.danger-text-btn { background: transparent; color: #c74b4b; font-weight: 700; }
.wide { width: 100%; justify-content: center; text-align: center; }
.mobile-menu { display: none; }

.view { display: none; animation: fade .28s ease; }
.view.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(310px, .72fr); gap: 22px; }
.paper-card, .panel, .stat-card, .calendar-card, .session-row, .settings-card { background: var(--surface); border: 1px solid rgba(255,255,255,.45); box-shadow: var(--shadow-sm); backdrop-filter: blur(18px); }
.hero-card { min-height: 330px; border-radius: var(--radius-xl); padding: 38px; display: grid; grid-template-columns: minmax(0, 1fr) 230px; overflow: hidden; position: relative; }
.hero-card::before { content: "読"; position: absolute; right: 250px; bottom: -45px; color: rgba(34,36,58,.035); font: 700 210px "Noto Serif JP"; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; align-self: center; }
.hero-kicker { margin: 0 0 12px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.hero-copy h2 { margin: 0; font: 700 clamp(30px, 4vw, 48px)/1.22 "Noto Serif JP"; letter-spacing: -.04em; }
.hero-sub { margin: 14px 0 0; color: var(--muted); font-size: 15px; }
.hero-meta { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-meta span { padding: 8px 11px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 700; }
.hero-actions { margin-top: 28px; display: flex; gap: 16px; align-items: center; }
.book-visual { display: grid; place-items: center; position: relative; z-index: 1; }
.book-cover { --cover-color: #c95d45; width: 164px; height: 228px; border-radius: 6px 15px 15px 6px; background: linear-gradient(145deg, color-mix(in srgb, var(--cover-color), white 8%), color-mix(in srgb, var(--cover-color), black 18%)); color: #fff; box-shadow: -14px 20px 32px rgba(33,27,33,.22), inset 3px 0 0 rgba(255,255,255,.14); position: relative; transform: rotate(3deg); }
.book-cover.large { width: 190px; height: 268px; }
.book-spine { position: absolute; left: 12px; top: 0; bottom: 0; width: 1px; background: rgba(255,255,255,.25); box-shadow: 5px 0 14px rgba(0,0,0,.16); }
.book-cover-inner { position: absolute; inset: 25px 20px 22px 30px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border: 1px solid rgba(255,255,255,.45); }
.book-cover-label { position: absolute; top: 14px; font-size: 7px; letter-spacing: .22em; opacity: .82; }
.book-cover strong { width: 100%; max-width: 118px; font: 700 clamp(17px, 1.8vw, 24px)/1.4 "Noto Serif JP"; word-break: normal; overflow-wrap: anywhere; text-wrap: balance; }
.book-cover small { margin-top: 14px; font: 500 10px "Noto Serif JP"; opacity: .84; }

.ink-card { border-radius: var(--radius-xl); padding: 30px; background: radial-gradient(circle at 90% 0, rgba(255,255,255,.12), transparent 36%), linear-gradient(145deg, var(--indigo-2), var(--indigo)); color: #fff; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.ink-card::after { content: "土"; position: absolute; right: -20px; bottom: -58px; font: 700 190px "Noto Serif JP"; color: rgba(255,255,255,.04); }
.next-card-head { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: rgba(255,255,255,.6); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #f0a78f; box-shadow: 0 0 0 6px rgba(240,167,143,.1); }
.next-date-big { margin: 24px 0 4px; font: 700 44px "Noto Serif JP"; }
.next-card h3 { margin: 6px 0; font-size: 19px; }
.next-card > p:not(.next-date-big) { margin: 0; color: rgba(255,255,255,.58); font-size: 12px; }
.next-card-footer { position: absolute; left: 30px; right: 30px; bottom: 26px; display: flex; justify-content: space-between; align-items: end; z-index: 1; }
.next-card-footer div:first-child { display: grid; gap: 5px; }
.next-card-footer span { color: rgba(255,255,255,.55); font-size: 10px; }
.next-card-footer strong { font-size: 22px; }
.ring { --p: 0; width: 64px; height: 64px; border-radius: 50%; background: conic-gradient(#efaa93 calc(var(--p) * 1%), rgba(255,255,255,.12) 0); display: grid; place-items: center; position: relative; }
.ring::after { content: ""; position: absolute; inset: 6px; background: var(--indigo); border-radius: 50%; }
.ring span { position: relative; z-index: 1; color: #fff; font-size: 14px; font-weight: 800; }

.stat-grid { margin-top: 22px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card { border-radius: var(--radius-lg); padding: 20px; display: flex; align-items: center; gap: 14px; }
.stat-icon { width: 46px; height: 46px; border-radius: 15px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font: 700 16px "Noto Serif JP"; }
.stat-card p { margin: 0 0 4px; color: var(--muted); font-size: 11px; }
.stat-card strong { font-size: 21px; }

.dashboard-grid { margin-top: 22px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.panel { border-radius: var(--radius-xl); padding: 28px; }
.panel-head { display: flex; justify-content: space-between; align-items: start; gap: 16px; margin-bottom: 22px; }
.panel h2 { margin: 3px 0 0; font-size: 20px; }
.timeline { display: grid; gap: 2px; }
.timeline-item { display: grid; grid-template-columns: 70px 18px 1fr; gap: 12px; align-items: center; min-height: 70px; }
.timeline-date { text-align: right; }
.timeline-date strong { display: block; font: 700 16px "Noto Serif JP"; }
.timeline-date span { color: var(--muted); font-size: 10px; }
.timeline-rail { align-self: stretch; position: relative; display: grid; place-items: center; }
.timeline-rail::before { content: ""; width: 1px; position: absolute; top: 0; bottom: 0; background: var(--line); }
.timeline-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-solid); border: 3px solid var(--accent); z-index: 1; }
.timeline-item.break .timeline-dot { border-color: var(--gold); }
.timeline-content { padding: 10px 0; }
.timeline-content strong { font-size: 13px; }
.timeline-content p { margin: 4px 0 0; color: var(--muted); font-size: 11px; }
.empty-state { padding: 34px 10px; color: var(--muted); text-align: center; border: 1px dashed var(--line); border-radius: 17px; font-size: 12px; }

.chapter-summary { display: grid; gap: 15px; }
.chapter-progress-top { display: flex; justify-content: space-between; align-items: end; }
.chapter-progress-top strong { font-size: 28px; }
.chapter-progress-top span { color: var(--muted); font-size: 11px; }
.progress-track { height: 9px; border-radius: 99px; background: var(--line); overflow: hidden; }
.progress-track span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--accent), #e7a08d); transition: width .4s ease; }
.chapter-mini-list { display: grid; gap: 7px; margin-top: 4px; }
.chapter-mini { display: flex; align-items: center; justify-content: space-between; padding: 9px 10px; border-radius: 12px; background: rgba(127,127,127,.055); font-size: 11px; }
.chapter-mini.done span:first-child { text-decoration: line-through; color: var(--muted); }
.chapter-check { width: 19px; height: 19px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 10px; }

.view-toolbar { min-height: 58px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.view-toolbar h2 { margin: 3px 0 0; font-size: 25px; }
.legend { color: var(--muted); font-size: 11px; flex-wrap: wrap; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 8px; height: 8px; border-radius: 50%; }
.legend-dot.session { background: var(--accent); }
.legend-dot.break { background: var(--gold); }
.legend-dot.completed { background: var(--green); }
.month-nav h2 { min-width: 155px; text-align: center; font: 700 22px "Noto Serif JP"; }
.calendar-card { border-radius: var(--radius-xl); padding: 20px; }
.weekday-row, .calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); }
.weekday-row { padding: 8px 0 14px; color: var(--muted); font-size: 11px; text-align: center; }
.weekday-row span:first-child { color: #c85c5c; }
.weekday-row span:last-child { color: #526fc3; }
.calendar-day { min-height: 118px; padding: 11px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); position: relative; cursor: pointer; transition: .18s ease; }
.calendar-day:nth-child(7n+1) { border-left: 0; }
.calendar-day:hover { background: rgba(201,93,69,.045); }
.calendar-day.muted { opacity: .35; }
.calendar-day.today .day-number { background: var(--ink); color: var(--surface-solid); }
.day-number { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 50%; font-size: 11px; font-weight: 700; }
.day-events { display: grid; gap: 5px; margin-top: 8px; }
.day-event { padding: 6px 7px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); font-size: 9px; font-weight: 700; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.day-event.break { background: rgba(199,164,107,.16); color: #a27c3d; }
.day-event.completed { background: rgba(76,135,108,.14); color: var(--green); }

.filter-row { display: flex; gap: 8px; margin-bottom: 18px; overflow-x: auto; }
.filter-chip { padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); cursor: pointer; color: var(--muted); font-size: 13px; font-weight: 800; }
.filter-chip.active { background: var(--ink); color: var(--surface-solid); border-color: var(--ink); }
.session-list { display: grid; gap: 12px; }
.session-row { border-radius: 20px; padding: 18px 20px; display: grid; grid-template-columns: 80px minmax(0,1.4fr) minmax(0,1fr) 110px 36px; align-items: center; gap: 16px; }
.session-date { text-align: center; border-right: 1px solid var(--line); padding-right: 15px; }
.session-date strong { display: block; font: 700 25px "Noto Serif JP"; }
.session-date span { color: var(--muted); font-size: 10px; }
.session-info strong { font-size: 14px; }
.session-info p, .session-chapters p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.session-status { justify-self: start; padding: 7px 10px; border-radius: 999px; font-size: 10px; font-weight: 800; }
.session-status.planned { color: var(--accent); background: var(--accent-soft); }
.session-status.completed { color: var(--green); background: rgba(76,135,108,.13); }
.session-status.break { color: #9d7739; background: rgba(199,164,107,.16); }
.row-menu { width: 34px; height: 34px; border-radius: 11px; border: 1px solid var(--line); background: transparent; cursor: pointer; }

.book-editor-grid { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(280px,.6fr); gap: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid.compact { margin: 22px 0 14px; gap: 10px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field span { color: var(--muted); font-size: 11px; font-weight: 700; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid var(--line); border-radius: 13px; padding: 12px 13px; background: rgba(255,255,255,.45); color: var(--ink); outline: none; transition: .18s ease; }
[data-theme="dark"] .field input, [data-theme="dark"] .field textarea, [data-theme="dark"] .field select { background: rgba(255,255,255,.04); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: rgba(201,93,69,.55); box-shadow: 0 0 0 4px rgba(201,93,69,.08); }
.cover-editor-panel h3 { margin: 4px 0 8px; }
.cover-preview-wrap { min-height: 330px; display: grid; place-items: center; }
.toc-panel { margin-top: 22px; }
.toc-editor { display: grid; gap: 9px; }
.toc-row { display: grid; grid-template-columns: 36px 1fr 40px; gap: 10px; align-items: center; }
.drag-handle { width: 34px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: var(--muted); background: rgba(127,127,127,.06); cursor: grab; }
.toc-row input { width: 100%; border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 12px; padding: 10px 12px; }
.remove-chapter { border: 0; background: transparent; color: #c05656; cursor: pointer; font-size: 18px; }

.settings-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.settings-card { padding: 28px; border-radius: var(--radius-xl); }
.settings-icon { width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center; margin-bottom: 20px; background: var(--accent-soft); color: var(--accent); font: 700 18px "Noto Serif JP"; }
.settings-card h2 { margin: 5px 0 12px; }
.settings-card > p:not(.eyebrow) { min-height: 64px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.stack-actions { display: grid; gap: 10px; margin-top: 24px; }
.file-btn { display: flex; align-items: center; padding: 11px 15px; border-radius: 13px; background: var(--surface-solid); border: 1px solid var(--line); font-weight: 700; }
.file-btn input { display: none; }
.danger-card { border-color: rgba(189,79,79,.17); }

.modal-backdrop { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; padding: 22px; background: rgba(10,12,23,.58); backdrop-filter: blur(9px); }
.modal-backdrop.open { display: grid; }
.modal-card { width: min(700px, 100%); max-height: calc(100vh - 44px); overflow: auto; border-radius: 26px; padding: 28px; background: var(--surface-solid); box-shadow: 0 30px 90px rgba(0,0,0,.28); }
.compact-modal { width: min(520px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: start; margin-bottom: 22px; }
.modal-head h2 { margin: 4px 0 0; }
.modal-help { color: var(--muted); font-size: 12px; line-height: 1.7; }
.modal-actions { margin-top: 24px; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.modal-actions-right { display: flex; justify-content: flex-end; align-items: center; gap: 10px; margin-top: 22px; }
.hidden { display: none !important; }
.toast { position: fixed; right: 28px; bottom: 28px; z-index: 200; max-width: 340px; padding: 13px 17px; border-radius: 14px; background: #20263e; color: #fff; font-size: 12px; box-shadow: var(--shadow); transform: translateY(20px); opacity: 0; pointer-events: none; transition: .25s ease; }
.toast.show { transform: none; opacity: 1; }

@media (max-width: 1180px) {
  .app-shell { grid-template-columns: 230px minmax(0,1fr); }
  .main-content { padding-left: 28px; padding-right: 28px; }
  .hero-grid { grid-template-columns: 1fr; }
  .next-card { min-height: 260px; }
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .settings-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 840px) {
  .app-shell { display: block; }
  .sidebar { position: fixed; transform: translateX(-105%); width: 270px; transition: .25s ease; }
  .sidebar.open { transform: none; }
  .mobile-menu { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); }
  .main-content { padding: 0 18px 40px; }
  .topbar { height: 96px; }
  .today-chip { display: none; }
  .topbar h1 { font-size: 22px; }
  .dashboard-grid, .book-editor-grid { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  .session-row { grid-template-columns: 65px 1fr 38px; }
  .session-chapters, .session-status { grid-column: 2; }
  .row-menu { grid-column: 3; grid-row: 1 / span 2; }
  .calendar-day { min-height: 92px; padding: 7px; }
  .day-event { font-size: 0; height: 7px; padding: 0; }
}

@media (max-width: 600px) {
  .topbar-actions .primary-btn { width: 42px; height: 42px; padding: 0; font-size: 0; }
  .topbar-actions .primary-btn span { font-size: 20px; }
  .hero-card { grid-template-columns: 1fr; padding: 28px; }
  .book-visual { display: none; }
  .hero-copy h2 { font-size: 32px; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 14px; }
  .stat-icon { width: 39px; height: 39px; }
  .view-toolbar { align-items: flex-start; flex-direction: column; }
  .month-nav { flex-wrap: wrap; }
  .legend { width: 100%; justify-content: flex-start; }
  .calendar-card { padding: 8px; }
  .calendar-day { min-height: 68px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .panel { padding: 20px; }
  .session-row { padding: 14px; gap: 10px; }
  .session-date { padding-right: 10px; }
  .toolbar-actions { width: 100%; }
  .toolbar-actions button { flex: 1; }
}

.toolbar-description, .book-editor-heading p { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
.book-library { display: grid; gap: 12px; margin: 6px 0 26px; }
.library-book { display: grid; grid-template-columns: 8px minmax(0, 1fr) auto; gap: 16px; align-items: center; overflow: hidden; padding: 16px 18px 16px 0; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); transition: border-color .2s ease, transform .2s ease; }
.library-book.selected { border-color: var(--accent); box-shadow: 0 8px 24px rgba(40, 35, 28, .06); }
.library-book-color { align-self: stretch; background: var(--book-color); border-radius: 0 6px 6px 0; }
.library-book-copy { min-width: 0; }
.library-book-copy strong { display: block; margin: 6px 0 4px; font-family: var(--serif); font-size: 18px; }
.library-book-copy p { margin: 0; color: var(--muted); font-size: 12px; }
.book-status { display: inline-flex; padding: 3px 8px; border-radius: 999px; font-size: 10px; font-weight: 800; letter-spacing: .04em; }
.book-status.current { color: #fff; background: var(--accent); }
.book-status.upcoming { color: #476151; background: #e4eee7; }
.book-status.past { color: var(--muted); background: var(--surface-2); }
.library-book-actions { display: flex; align-items: center; gap: 8px; }
.book-editor-heading { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin: 0 0 16px; padding-top: 22px; border-top: 1px solid var(--line); }
.book-editor-heading h2 { margin: 4px 0 0; }
@media (max-width: 640px) {
  .library-book { grid-template-columns: 7px minmax(0, 1fr); }
  .library-book-actions { grid-column: 2; justify-content: flex-start; flex-wrap: wrap; }
  .book-editor-heading { align-items: flex-start; flex-direction: column; }
}

.saturday-calendar { display: grid; gap: 12px; }
.saturday-card { width: 100%; display: grid; grid-template-columns: 120px minmax(0, 1fr) auto; gap: 20px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-solid); color: var(--ink); text-align: left; cursor: pointer; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.saturday-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent), transparent 35%); box-shadow: 0 12px 28px rgba(35, 29, 25, .08); }
.saturday-card.today { border-color: var(--accent); box-shadow: inset 4px 0 0 var(--accent); }
.saturday-date { display: grid; gap: 5px; padding-right: 18px; border-right: 1px solid var(--line); }
.saturday-date span { color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .06em; }
.saturday-date strong { font-family: var(--serif); font-size: 25px; }
.saturday-detail { min-width: 0; display: grid; gap: 7px; }
.saturday-book-title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--serif); font-size: 15px; }
.saturday-session-line { min-width: 0; display: flex; align-items: center; gap: 9px; }
.saturday-session-line > strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.saturday-detail > p { margin: 0; color: var(--muted); font-size: 12px; }
.saturday-action { color: var(--accent); font-size: 11px; font-weight: 800; }
.session-status.empty { color: var(--muted); background: var(--surface-2); }
.chapter-state { flex: 0 0 auto; padding: 3px 7px; border-radius: 999px; font-size: 9px; font-weight: 800; }
.chapter-mini.up-next { border-color: color-mix(in srgb, var(--accent), transparent 55%); background: var(--accent-soft); }
.chapter-mini.up-next .chapter-state { color: var(--accent); background: var(--surface-solid); }
.chapter-mini.done .chapter-state { color: var(--green); background: rgba(76,135,108,.12); }
@media (max-width: 720px) {
  .saturday-card { grid-template-columns: 88px minmax(0, 1fr); gap: 14px; padding: 15px; }
  .saturday-action { display: none; }
  .saturday-date { padding-right: 12px; }
  .saturday-date strong { font-size: 20px; }
  .saturday-book-title, .saturday-session-line > strong { white-space: normal; }
  .saturday-session-line { align-items: flex-start; flex-direction: column; }
}

.meeting-access-card { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 18px; align-items: center; margin: 24px 0; padding: 18px 20px; border: 1px solid color-mix(in srgb, var(--accent), transparent 68%); border-radius: var(--radius-lg); background: linear-gradient(115deg, var(--surface-solid), color-mix(in srgb, var(--accent-soft), white 42%)); box-shadow: 0 10px 30px rgba(37, 30, 26, .06); }
.meeting-access-mark { width: 58px; height: 58px; display: grid; place-items: center; position: relative; overflow: hidden; border-radius: 16px; background: var(--ink); color: var(--surface-solid); }
.meeting-access-mark span { font-size: 9px; font-weight: 900; letter-spacing: .12em; }
.meeting-access-mark i { position: absolute; width: 16px; height: 16px; right: -4px; bottom: -4px; border: 5px solid var(--accent); border-radius: 50%; }
.meeting-access-copy h2 { margin: 3px 0; font-size: 18px; }
.meeting-access-copy > p:last-child { margin: 0; color: var(--muted); font-size: 12px; }
.meeting-access-actions { display: flex; align-items: center; gap: 10px; }
.zoom-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 22px; }
.zoom-hero-card { min-height: 390px; display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 34px; align-items: center; padding: 46px; overflow: hidden; border-radius: var(--radius-xl); background: linear-gradient(135deg, #202339, #343956 60%, #2a2d45); color: #fff; box-shadow: 0 22px 50px rgba(23, 26, 45, .2); }
.zoom-hero-card .eyebrow { color: #f09b7e; }
.zoom-hero-card h2 { margin: 8px 0 12px; font: 700 30px/1.35 var(--serif); }
.zoom-hero-card p:not(.eyebrow) { max-width: 470px; color: rgba(255,255,255,.7); line-height: 1.8; }
.zoom-orbit { width: 168px; height: 168px; display: grid; place-items: center; position: relative; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; }
.zoom-orbit::before, .zoom-orbit::after { content: ""; position: absolute; border: 1px solid rgba(240,155,126,.35); border-radius: 50%; transform: rotate(28deg); }
.zoom-orbit::before { width: 205px; height: 92px; }
.zoom-orbit::after { width: 92px; height: 205px; }
.zoom-orbit span { font: 700 54px var(--serif); }
.zoom-main-button { display: inline-flex; align-items: center; gap: 28px; margin-top: 16px; padding: 14px 18px; border-radius: 12px; background: #fff; color: #202339; font-size: 13px; font-weight: 900; text-decoration: none; }
.zoom-main-button span { color: var(--accent); }
.zoom-info-card { align-self: stretch; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--surface); }
.zoom-info-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.zoom-info-row > span { color: var(--muted); font-size: 11px; }
.zoom-info-row strong { grid-column: 1; font-size: 18px; letter-spacing: .04em; }
.copy-info-btn { grid-column: 2; grid-row: 1 / 3; align-self: center; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--accent); font-size: 10px; font-weight: 800; cursor: pointer; }
.zoom-note { margin-top: 22px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.hero-actions a, .meeting-access-actions a, .view-toolbar > a { text-decoration: none; }
@media (max-width: 900px) {
  .zoom-layout { grid-template-columns: 1fr; }
  .zoom-hero-card { min-height: 320px; }
}
@media (max-width: 720px) {
  .meeting-access-card { grid-template-columns: auto 1fr; }
  .meeting-access-actions { grid-column: 1 / -1; justify-content: flex-end; }
  .zoom-hero-card { grid-template-columns: 1fr; padding: 30px; }
  .zoom-orbit { display: none; }
}

.language-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 3px; margin: 4px 0 16px; padding: 3px; border: 1px solid rgba(255,255,255,.12); border-radius: 10px; background: rgba(255,255,255,.045); }
.language-switch button { padding: 7px 6px; border: 0; border-radius: 7px; background: transparent; color: rgba(255,255,255,.58); font-size: 10px; font-weight: 800; cursor: pointer; transition: .18s ease; }
.language-switch button.active { background: rgba(255,255,255,.16); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.book-library:not(.show-past) .library-book.past-book { display: none; }
.book-library:not(.show-upcoming) .library-book.upcoming-book { display: none; }

.zoom-edit-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.zoom-edit-form .full { grid-column: 1 / -1; }
.zoom-copy-actions { display: flex; gap: 8px; margin-top: 14px; }
.zoom-copy-actions .copy-info-btn { position: static; display: inline-flex; grid-column: auto; grid-row: auto; align-items: center; }
[data-zoom-link].disabled { pointer-events: none; opacity: .45; }

.session-row.refined { position: relative; grid-template-columns: 88px minmax(0, 1fr) auto 92px; gap: 20px; align-items: stretch; overflow: hidden; padding: 0; border: 1px solid var(--line); background: var(--surface); }
.session-row.refined::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: var(--session-book-color); }
.session-row.refined .session-date { display: grid; align-content: center; justify-items: center; gap: 1px; padding: 20px 12px 20px 17px; border-right: 1px solid var(--line); background: color-mix(in srgb, var(--session-book-color), transparent 94%); }
.session-row.refined .session-date span { order: 0; color: var(--muted); font-size: 10px; font-weight: 700; }
.session-row.refined .session-date strong { order: 1; font: 700 30px/1 var(--serif); }
.session-row.refined .session-date small { color: var(--muted); font-size: 10px; }
.progress-session-main { min-width: 0; display: grid; gap: 12px; padding: 18px 0; }
.session-book-line { min-width: 0; display: flex; align-items: center; gap: 8px; }
.session-book-line > strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 700 18px var(--serif); }
.session-book-line > small { flex: 0 0 auto; color: var(--muted); font-size: 12px; }
.session-book-dot { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--session-book-color); }
.session-range-block { display: grid; gap: 4px; }
.session-range-block > span { color: var(--accent); font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.session-range-block > strong { font-size: 15px; line-height: 1.55; }
.session-note { margin: 0; color: var(--muted); font-size: 13px; }
.session-row.refined > .session-status { align-self: center; }
.session-row.refined { cursor: pointer; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.session-row.refined:hover, .session-row.refined:focus-visible { transform: translateY(-2px); border-color: color-mix(in srgb, var(--session-book-color), transparent 45%); box-shadow: 0 12px 30px rgba(31, 28, 25, .09); outline: none; }
.session-edit-hint { align-self: center; margin-right: 18px; color: var(--accent); font-size: 11px; font-weight: 800; white-space: nowrap; }
.mobile-primary-nav { display: none; }

@media (max-width: 840px) {
  .session-row.refined { grid-template-columns: 70px minmax(0, 1fr) auto; gap: 14px; }
  .session-row.refined .session-date { grid-row: 1 / span 2; }
  .session-row.refined .progress-session-main { grid-column: 2; grid-row: 1 / span 2; }
  .session-row.refined > .session-status { grid-column: 3; grid-row: 1; align-self: end; margin: 0 12px 4px 0; }
  .session-row.refined > .session-edit-hint { grid-column: 3; grid-row: 2; align-self: start; margin-right: 12px; }
}
@media (max-width: 600px) {
  body { padding-bottom: 78px; }
  .main-content { padding: 0 14px 26px; }
  .topbar { padding-top: 14px; }
  .topbar-actions .today-chip, .topbar-actions #themeToggle, #quickAddBtn, .mobile-menu { display: none; }
  .topbar-title-wrap h1 { font-size: 22px; }
  .hero-grid { gap: 14px; }
  .hero-card { min-height: auto; }
  .view-toolbar { align-items: flex-start; }
  .view-toolbar > .primary-btn { width: 100%; text-align: center; }
  .zoom-layout { gap: 14px; }
  .zoom-hero-card { min-height: auto; padding: 24px 20px; }
  .zoom-hero-card h2 { font-size: 23px; }
  .zoom-edit-form { grid-template-columns: 1fr; }
  .zoom-edit-form .full { grid-column: auto; }
  .zoom-copy-actions { flex-wrap: wrap; }
  .saturday-card { border-radius: 14px; }
  .book-editor-grid { gap: 14px; }
  .session-row.refined { grid-template-columns: 62px minmax(0, 1fr) auto; gap: 10px; }
  .session-row.refined .session-date { padding: 16px 8px 16px 12px; }
  .session-row.refined .session-date strong { font-size: 25px; }
  .progress-session-main { padding: 14px 0; }
  .session-book-line { align-items: flex-start; flex-direction: column; gap: 3px; }
  .session-book-dot { display: none; }
  .session-range-block > strong { font-size: 12px; }
  .session-row.refined > .session-edit-hint { display: none; }
  .session-row.refined > .session-status { margin-right: 7px; }
  .mobile-primary-nav { position: fixed; z-index: 80; left: 10px; right: 10px; bottom: calc(8px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: repeat(3, 1fr); padding: 6px; border: 1px solid color-mix(in srgb, var(--line), transparent 10%); border-radius: 18px; background: color-mix(in srgb, var(--surface-solid), transparent 5%); box-shadow: 0 16px 45px rgba(25, 27, 40, .22); backdrop-filter: blur(18px); }
  .mobile-primary-nav button, .mobile-primary-nav a { display: grid; justify-items: center; gap: 3px; padding: 8px 4px; border: 0; border-radius: 12px; background: transparent; color: var(--muted); text-decoration: none; cursor: pointer; }
  .mobile-primary-nav span { font: 700 15px var(--serif); }
  .mobile-primary-nav strong { font-size: 9px; }
  .mobile-primary-nav a { background: var(--ink); color: var(--surface-solid); }
}

/* Sakura & Matcha palette */
.sidebar { background: rgba(248,223,228,.97); color: #5d3c47; box-shadow: 20px 0 60px rgba(176,108,125,.12); }
.brand-mark { border-color: rgba(93,60,71,.2); background: linear-gradient(135deg, rgba(255,255,255,.72), rgba(255,255,255,.28)); }
.brand-ko { color: rgba(93,60,71,.58); }
.nav-item { color: rgba(93,60,71,.68); }
.nav-item:hover { background: rgba(255,255,255,.5); color: #5d3c47; }
.nav-item.active { background: linear-gradient(135deg, rgba(255,255,255,.88), rgba(255,247,248,.66)); color: #5d3c47; box-shadow: inset 0 0 0 1px rgba(214,95,123,.13), 0 8px 20px rgba(176,108,125,.08); }
.sidebar-card { background: linear-gradient(155deg, rgba(255,255,255,.66), rgba(255,247,248,.38)); border-color: rgba(93,60,71,.1); }
.sidebar-card-kicker { color: #b84e69; }
.sidebar-card-title { color: rgba(93,60,71,.74); }
.sidebar-card-meta { color: rgba(93,60,71,.52); }
.mini-progress { background: rgba(93,60,71,.1); }
.mini-progress span { background: linear-gradient(90deg, #d65f7b, #849b55); }
.sidebar-foot { color: rgba(93,60,71,.38); }
.language-switch { border-color: rgba(93,60,71,.12); background: rgba(255,255,255,.3); }
.language-switch button { color: rgba(93,60,71,.58); }
.language-switch button.active { background: rgba(255,255,255,.78); color: #5d3c47; box-shadow: inset 0 0 0 1px rgba(214,95,123,.12); }
.primary-btn { box-shadow: 0 10px 24px rgba(214,95,123,.24); }
.secondary-btn:hover { border-color: rgba(214,95,123,.38); }
.paper-card, .panel, .stat-card, .calendar-card, .session-row, .settings-card { border-color: rgba(255,255,255,.72); }
.meeting-access-card { background: linear-gradient(115deg, rgba(255,253,251,.96), rgba(244,247,232,.9)); border-color: rgba(132,155,85,.24); }
.meeting-access-mark { background: #849b55; }
.meeting-access-mark i { border-color: #f0a9b9; }
.book-status.upcoming { color: #5d7040; background: #edf3df; }
.session-row.refined::before, .session-book-dot { background: var(--session-book-color, #d65f7b); }

[data-theme="dark"] .sidebar { background: rgba(50,60,39,.97); color: #fff4f6; }
[data-theme="dark"] .brand-mark { border-color: rgba(255,255,255,.18); background: linear-gradient(135deg, rgba(255,255,255,.14), rgba(255,255,255,.04)); }
[data-theme="dark"] .brand-ko, [data-theme="dark"] .nav-item, [data-theme="dark"] .sidebar-card-title { color: rgba(255,244,246,.68); }
[data-theme="dark"] .nav-item:hover, [data-theme="dark"] .nav-item.active { background: rgba(255,255,255,.11); color: #fff; }
[data-theme="dark"] .sidebar-card { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.08); }
[data-theme="dark"] .sidebar-card-kicker { color: #f0a9b9; }
[data-theme="dark"] .sidebar-card-meta, [data-theme="dark"] .sidebar-foot { color: rgba(255,255,255,.42); }
[data-theme="dark"] .language-switch { border-color: rgba(255,255,255,.12); background: rgba(255,255,255,.04); }
[data-theme="dark"] .language-switch button { color: rgba(255,255,255,.58); }
[data-theme="dark"] .language-switch button.active { background: rgba(255,255,255,.14); color: #fff; }