:root {
  color-scheme: light;
  --ink: #18241f;
  --muted: #68736d;
  --forest: #173c30;
  --forest-2: #225442;
  --paper: #fffdf8;
  --canvas: #f3f0e8;
  --line: #dedbd2;
  --gold: #f4c45e;
  --gold-soft: #fff1c7;
  --sage: #d9e5dc;
  --danger: #a33b32;
  --shadow: 0 14px 38px rgba(25, 45, 36, .09);
  --radius: 20px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}

[data-theme="dark"] {
  color-scheme: dark;
  --ink: #edf4ef;
  --muted: #aab8b0;
  --forest: #0d251d;
  --forest-2: #87b49e;
  --paper: #17231e;
  --canvas: #101813;
  --line: #304239;
  --gold-soft: #493c1d;
  --sage: #263c31;
  --shadow: 0 14px 38px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--canvas); color: var(--ink); }
body { min-height: 100vh; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid rgba(244,196,94,.65); outline-offset: 2px; }
[hidden] { display: none !important; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 260px 1fr; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 24px 16px 18px; background: var(--forest); color: #f9fbf7; }
.brand { display: flex; gap: 12px; align-items: center; padding: 0 8px 22px; }
.brand img { border-radius: 12px; box-shadow: 0 7px 18px rgba(0,0,0,.2); }
.brand strong, .brand span { display: block; }
.brand strong { font-size: 1.03rem; letter-spacing: -.01em; }
.brand span { color: #bdcfc6; font-size: .72rem; margin-top: 2px; letter-spacing: .05em; }
.space-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; background: rgba(255,255,255,.08); border-radius: 12px; }
.space-switch button { border: 0; background: transparent; color: #d7e4dd; padding: 9px 6px; border-radius: 9px; cursor: pointer; font-size: .82rem; }
.space-switch button.active { background: #fff; color: var(--forest); font-weight: 700; }
.main-nav { margin-top: 22px; overflow-y: auto; }
.nav-heading { color: #8fa99d; font-size: .68rem; font-weight: 800; letter-spacing: .14em; padding: 15px 12px 7px; text-transform: uppercase; }
.nav-button { width: 100%; display: flex; align-items: center; gap: 11px; padding: 10px 12px; border: 0; border-radius: 10px; background: transparent; color: #cfddd6; cursor: pointer; text-align: left; }
.nav-button span:first-child { width: 20px; text-align: center; color: #9eb7ac; }
.nav-button:hover, .nav-button.active { background: rgba(255,255,255,.1); color: white; }
.nav-button.active { box-shadow: inset 3px 0 var(--gold); }
.sidebar-footer { margin-top: auto; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.12); }
.quiet { width: 100%; display: flex; gap: 12px; padding: 9px 12px; border: 0; background: transparent; color: #bcd0c6; cursor: pointer; text-align: left; }
.sync-status { display: flex; align-items: center; gap: 8px; color: #91aa9f; padding: 10px 12px 0; font-size: .72rem; }
.sync-status > span:first-child { width: 7px; height: 7px; background: #7dc7a3; border-radius: 50%; }
.sync-status > span:first-child.busy { background: var(--gold); animation: pulse 1s infinite; }
.sync-status > span:first-child.error { background: #e67d73; }

.main-panel { min-width: 0; }
.topbar { height: 72px; display: flex; align-items: center; gap: 12px; padding: 0 32px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--canvas) 90%, transparent); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); }
.search-box { flex: 1; max-width: 620px; display: flex; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); padding: 0 14px; }
.search-box input { width: 100%; height: 42px; border: 0; outline: 0; background: transparent; color: var(--ink); }
.language-switch { display: flex; gap: 4px; padding: 3px; border: 1px solid var(--line); border-radius: 11px; background: var(--paper); }
.language-switch button { border: 0; background: transparent; padding: 7px 9px; border-radius: 8px; cursor: pointer; color: var(--muted); }
.language-switch button.active { background: var(--sage); color: var(--ink); font-weight: 700; }
.icon-button { width: 42px; height: 42px; border-radius: 11px; border: 1px solid var(--line); background: var(--paper); cursor: pointer; }
.content { max-width: 1240px; margin: 0 auto; padding: 42px 38px 80px; }
.page-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 28px; }
.page-heading h1 { margin: 3px 0 6px; font-family: Georgia, "Noto Serif JP", serif; font-size: clamp(2rem,4vw,3rem); letter-spacing: -.035em; }
.eyebrow, .kicker { margin: 0; font-size: .7rem; font-weight: 850; letter-spacing: .16em; color: var(--forest-2); text-transform: uppercase; }
.muted { color: var(--muted); margin: 0; line-height: 1.55; }
.primary { border: 0; border-radius: 12px; background: var(--forest); color: white; padding: 11px 16px; cursor: pointer; font-weight: 750; box-shadow: 0 7px 18px rgba(23,60,48,.18); }
.primary:hover { background: var(--forest-2); }
.wide { width: 100%; padding: 13px 16px; }
.paper-card { border: 1px solid var(--line); background: var(--paper); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.priority-card { padding: 28px; background: linear-gradient(125deg, var(--paper), color-mix(in srgb, var(--gold-soft) 52%, var(--paper))); margin-bottom: 18px; }
.card-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 16px; }
.card-heading h2 { margin: 2px 0 0; font-family: Georgia, "Noto Serif JP", serif; font-size: 1.35rem; }
.date-chip, .count { border-radius: 999px; background: var(--sage); padding: 6px 10px; color: var(--forest-2); font-size: .75rem; font-weight: 800; }
.task-stack { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.priority-task { display: flex; align-items: flex-start; gap: 10px; min-height: 72px; border: 1px solid color-mix(in srgb, var(--gold) 48%, var(--line)); border-radius: 13px; padding: 13px; background: color-mix(in srgb, var(--paper) 80%, transparent); cursor: pointer; }
.priority-task input, .compact-row input { accent-color: var(--forest); margin-top: 3px; }
.priority-task strong { display: block; font-size: .9rem; }
.priority-task small { color: var(--muted); }
.text-button { border: 0; background: transparent; color: var(--forest-2); padding: 13px 0 0; cursor: pointer; font-weight: 750; }
.dashboard-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.accent-card { background: var(--forest); color: white; border-color: transparent; }
.accent-card .muted, .accent-card .compact-row small { color: #bcd0c6; }
.compact-list, .project-list { display: grid; gap: 3px; }
.compact-row { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; min-height: 46px; border-radius: 10px; padding: 7px 8px; cursor: pointer; }
.compact-row:hover { background: color-mix(in srgb, var(--sage) 55%, transparent); }
.compact-row strong { display: block; font-size: .88rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.compact-row small { color: var(--muted); }
.compact-row .date { font-size: .72rem; color: var(--muted); }
.project-row { display: grid; grid-template-columns: 9px 1fr auto; gap: 11px; align-items: center; padding: 10px 8px; border-radius: 10px; cursor: pointer; }
.project-row:hover { background: var(--sage); }
.project-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--gold); }

.filter-row { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.chip { border: 1px solid var(--line); background: var(--paper); border-radius: 999px; padding: 7px 13px; cursor: pointer; color: var(--muted); }
.chip.active { background: var(--forest); color: white; border-color: var(--forest); }
.item-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 15px; }
.item-card { min-height: 170px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); padding: 18px; cursor: pointer; box-shadow: 0 6px 20px rgba(25,45,36,.05); transition: transform .15s, box-shadow .15s; }
.item-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.item-card-top { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font-size: .7rem; }
.item-card h3 { margin: 16px 0 8px; font-family: Georgia, "Noto Serif JP", serif; font-size: 1.15rem; }
.item-card p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.tag-row { display: flex; gap: 5px; margin-top: auto; padding-top: 14px; flex-wrap: wrap; }
.tag { font-size: .68rem; color: var(--forest-2); background: var(--sage); border-radius: 999px; padding: 4px 7px; }
.completed { opacity: .58; }
.completed h3, .completed strong { text-decoration: line-through; }
.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty-state > div { font-size: 3rem; color: var(--gold); }
.empty-state h2 { color: var(--ink); }

.vault-screen { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 50% 25%, #2c604d 0, var(--forest) 42%, #0d271e 100%); }
.vault-card { width: min(440px,100%); text-align: center; border-radius: 28px; background: var(--paper); padding: 38px; box-shadow: 0 28px 80px rgba(0,0,0,.3); }
.vault-card h1 { margin: 7px 0 10px; font-family: Georgia, serif; font-size: 2.25rem; }
.vault-card form { text-align: left; margin-top: 24px; }
.vault-card label { display: block; font-weight: 700; font-size: .82rem; }
.vault-card input { width: 100%; margin: 7px 0 16px; height: 46px; border: 1px solid var(--line); border-radius: 11px; background: var(--canvas); padding: 0 12px; color: var(--ink); }
.microcopy { color: var(--muted); font-size: .72rem; line-height: 1.45; }
.vault-language { margin: 22px auto 0; width: fit-content; }

.modal { width: min(720px, calc(100% - 28px)); border: 1px solid var(--line); border-radius: 22px; background: var(--paper); color: var(--ink); padding: 0; box-shadow: 0 25px 80px rgba(0,0,0,.28); }
.modal::backdrop { background: rgba(8,20,15,.58); backdrop-filter: blur(4px); }
.modal form { padding: 26px; }
.modal-heading { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.modal-heading h2 { margin: 3px 0 0; font-family: Georgia, "Noto Serif JP", serif; font-size: 1.7rem; }
.type-picker { display: flex; gap: 6px; margin-bottom: 18px; }
.type-picker button { flex: 1; border: 1px solid var(--line); background: var(--canvas); border-radius: 10px; padding: 9px; cursor: pointer; }
.type-picker button.active { background: var(--forest); color: white; }
.modal label { display: block; color: var(--muted); font-size: .76rem; font-weight: 750; }
.modal input:not([type=checkbox]), .modal textarea, .modal select { width: 100%; border: 1px solid var(--line); border-radius: 10px; background: var(--canvas); color: var(--ink); padding: 10px 11px; margin: 6px 0 14px; }
.modal textarea { resize: vertical; line-height: 1.55; }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 14px; }
.checkbox-row { display: flex !important; gap: 9px; align-items: center; margin: 2px 0 16px; }
.checkbox-row input { accent-color: var(--forest); }
.modal-actions { display: grid; grid-template-columns: auto 1fr auto auto; gap: 9px; border-top: 1px solid var(--line); padding-top: 18px; }
.modal-actions button { border: 1px solid var(--line); border-radius: 10px; background: var(--canvas); padding: 9px 14px; cursor: pointer; }
.modal-actions .primary { background: var(--forest); color: white; border-color: var(--forest); }
.danger { color: var(--danger); }
.small-modal { max-width: 540px; }
.settings-section { padding: 16px 0; border-top: 1px solid var(--line); }
.settings-section h3 { margin: 0 0 8px; }
.language-switch.large { width: fit-content; }
.warning-box { background: var(--gold-soft); border: 0; border-radius: 12px; padding: 14px; }
.warning-box p { margin-bottom: 0; color: var(--muted); line-height: 1.5; }
.toast { position: fixed; z-index: 100; left: 50%; bottom: 24px; transform: translate(-50%,20px); opacity: 0; pointer-events: none; background: var(--ink); color: var(--paper); border-radius: 999px; padding: 10px 16px; box-shadow: var(--shadow); transition: .2s; font-size: .82rem; }
.toast.show { opacity: 1; transform: translate(-50%,0); }
.mobile-only { display: none; }

@keyframes pulse { 50% { opacity: .35; } }

@media (max-width: 980px) {
  .item-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .task-stack { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .app-shell { display: block; }
  .sidebar { position: fixed; left: 0; top: 0; z-index: 30; width: min(290px,86vw); transform: translateX(-102%); transition: transform .2s; box-shadow: 16px 0 50px rgba(0,0,0,.28); }
  .sidebar.open { transform: translateX(0); }
  .mobile-only { display: inline-grid; place-items: center; }
  .topbar { padding: 0 14px; height: 64px; }
  .topbar .language-switch span { display: none; }
  .topbar .language-switch button { padding: 7px; }
  .content { padding: 28px 16px 70px; }
  .page-heading { align-items: flex-start; }
  .page-heading .primary span:last-child { display: none; }
  .dashboard-grid, .item-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .modal form { padding: 20px; }
  .modal-actions { grid-template-columns: auto 1fr auto; }
  .modal-actions span { display: none; }
  .modal-actions button:nth-last-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; transition-duration: .001ms !important; }
}