:root {
  color-scheme: light;
  --canvas: #f4f7fc;
  --surface: #ffffff;
  --surface-2: #f7f9fd;
  --surface-3: #edf2fa;
  --ink: #18253c;
  --ink-2: #46556f;
  --muted: #8996aa;
  --muted-2: #a9b4c4;
  --line: #e8edf5;
  --line-strong: #dce4f0;
  --blue: #4c82e8;
  --blue-strong: #326fdc;
  --blue-soft: #edf4ff;
  --violet: #8a79df;
  --teal: #39a99b;
  --amber: #d99a45;
  --slate: #8b98ab;
  --red: #d96d72;
  --shadow: 0 8px 28px rgba(35, 57, 94, .045), 0 1px 2px rgba(35, 57, 94, .035);
  --shadow-float: 0 18px 60px rgba(29, 47, 78, .16);
  --radius: 20px;
  --radius-sm: 13px;
  --sidebar-width: 244px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  font-optical-sizing: auto;
  background: var(--canvas);
  color: var(--ink);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #111723;
  --surface: #192231;
  --surface-2: #202b3d;
  --surface-3: #29364a;
  --ink: #edf3fc;
  --ink-2: #c4cfdf;
  --muted: #91a0b6;
  --muted-2: #718198;
  --line: #2b394e;
  --line-strong: #3a4960;
  --blue: #78a5fb;
  --blue-strong: #8cb4ff;
  --blue-soft: #263a59;
  --violet: #a99aef;
  --teal: #58c5b6;
  --amber: #e6b46b;
  --slate: #9ba9bc;
  --red: #ef8589;
  --shadow: 0 8px 28px rgba(0, 0, 0, .13), 0 1px 2px rgba(0, 0, 0, .08);
  --shadow-float: 0 18px 60px rgba(0, 0, 0, .36);
}

* { box-sizing: border-box; }
html { min-width: 320px; min-height: 100%; scroll-behavior: smooth; background: var(--canvas); }
body { margin: 0; min-width: 320px; min-height: 100vh; background: var(--canvas); color: var(--ink); }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid color-mix(in srgb, var(--blue) 48%, transparent); outline-offset: 2px; }
button { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
::selection { background: color-mix(in srgb, var(--blue) 20%, transparent); }

.app-frame { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); flex: 0 0 var(--sidebar-width); height: 100vh; position: sticky; top: 0; display: flex; flex-direction: column; padding: 27px 17px 20px; border-right: 1px solid var(--line); background: var(--surface); z-index: 10; }
.brand { display: flex; align-items: center; gap: 12px; padding: 3px 10px 30px; }
.brand-mark { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border-radius: 14px; background: linear-gradient(145deg, #528bed, #326bd4); color: #fff; font-size: 13px; font-weight: 700; letter-spacing: -.8px; box-shadow: 0 6px 15px rgba(56, 115, 220, .22); }
.brand-mark.small { width: 31px; height: 31px; border-radius: 10px; font-size: 10px; }
.brand-copy { display: grid; gap: 3px; }
.brand-copy strong { font-size: 14px; letter-spacing: -.2px; }
.brand-copy small { color: var(--muted); font-size: 11px; }
.side-caption { padding: 0 12px 11px; color: var(--muted-2); font-size: 10px; font-weight: 700; letter-spacing: 1.3px; }
.side-nav { display: grid; gap: 5px; }
.nav-item { min-height: 52px; display: flex; align-items: center; gap: 12px; padding: 0 12px; border-radius: 13px; color: var(--ink-2); transition: background .18s ease, color .18s ease, transform .18s ease; }
.nav-item:hover { background: var(--surface-2); }
.nav-item:active { transform: scale(.985); }
.nav-item.active { background: var(--blue-soft); color: var(--blue-strong); }
.nav-icon { width: 23px; display: inline-flex; align-items: center; justify-content: center; }
.nav-text { font-size: 13px; font-weight: 600; }
.nav-desc { margin-left: auto; font-size: 10px; color: var(--muted-2); }
.nav-item.active .nav-desc { color: var(--blue); opacity: .75; }
.sidebar-bottom { margin-top: auto; display: grid; gap: 15px; padding: 12px 11px 2px; }
.sidebar-quote { display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: 12px; }
.quote-dot, .local-dot { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: var(--blue); }
.local-note { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 10px; }
.local-dot { width: 6px; height: 6px; flex-basis: 6px; background: var(--teal); }
.main-column { flex: 1; min-width: 0; }
.topbar { height: calc(76px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) clamp(24px, 4vw, 62px) 0; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--canvas) 92%, transparent); }
.topbar-left, .topbar-actions { display: flex; align-items: center; gap: 13px; }
.breadcrumb { color: var(--ink-2); font-size: 12px; font-weight: 600; }
.breadcrumb span { padding: 0 7px; color: var(--muted-2); font-weight: 400; }
.mobile-brand { display: none; align-items: center; gap: 9px; font-size: 13px; }
.offline-pill { display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; color: var(--muted); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; font-size: 10px; }
.offline-pill i, .live-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); display: inline-block; }
.offline-pill i.offline-dot { background: var(--amber); }
.icon-button, .avatar-button { width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink-2); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: transform .16s ease, background .16s ease, border-color .16s ease; }
.icon-button:hover { background: var(--surface-2); border-color: var(--line-strong); }
.icon-button:active, .avatar-button:active { transform: scale(.94); }
.avatar-button { border: 0; border-radius: 50%; background: #e6efff; color: #376fcf; font-size: 12px; font-weight: 700; }
.page-content { width: min(100%, 1480px); margin: 0 auto; padding: 35px clamp(24px, 4vw, 62px) 60px; padding-left: max(clamp(24px, 4vw, 62px), env(safe-area-inset-left)); padding-right: max(clamp(24px, 4vw, 62px), env(safe-area-inset-right)); outline: none; }
.mobile-nav { display: none; }

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(25px, 2.2vw, 31px); font-weight: 700; letter-spacing: -1.1px; line-height: 1.25; }
h2 { margin: 0; font-size: 16px; font-weight: 700; letter-spacing: -.35px; }
h3 { margin: 0; font-size: 15px; font-weight: 650; }
.eyebrow { display: block; margin-bottom: 8px; color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
.welcome-row, .page-title-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-bottom: 25px; }
.welcome-row p, .page-title-row p { margin: 0; color: var(--muted); font-size: 12px; }
.welcome-date { display: flex; align-items: center; gap: 10px; padding: 7px 13px 7px 9px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--muted); font-size: 11px; white-space: nowrap; }
.welcome-date strong { font-size: 25px; color: var(--blue); letter-spacing: -1px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.today-grid { display: grid; grid-template-columns: minmax(0, 1.42fr) minmax(280px, .88fr); gap: 17px; align-items: stretch; }
.timer-card { min-height: 420px; padding: 25px 28px 18px; background: radial-gradient(ellipse at 50% 55%, color-mix(in srgb, var(--blue-soft) 70%, var(--surface)) 0, var(--surface) 64%); }
.card-topline, .card-heading, .section-heading, .planner-toolbar, .planner-day-header, .task-progress-top, .timer-meta, .timer-actions, .review-footer { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.card-topline h2 { font-size: 17px; }
.live-badge { display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border-radius: 99px; background: var(--surface-2); color: var(--muted); font-size: 10px; }
.live-badge.is-live { background: color-mix(in srgb, var(--teal) 10%, var(--surface)); color: var(--teal); }
.live-badge.is-live i { box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal) 12%, transparent); }
.timer-center { display: flex; align-items: center; justify-content: center; padding: 15px 0 12px; }
.timer-ring { width: 206px; height: 206px; padding: 7px; border-radius: 50%; background: conic-gradient(var(--blue) var(--timer-progress, 0%), color-mix(in srgb, var(--blue) 10%, var(--surface-3)) 0); box-shadow: 0 8px 28px color-mix(in srgb, var(--blue) 13%, transparent); }
.timer-ring-inner { width: 100%; height: 100%; border-radius: inherit; background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; justify-content: center; }
.timer-value { color: var(--ink); font-variant-numeric: tabular-nums; font-size: 34px; font-weight: 650; letter-spacing: -1.7px; line-height: 1.1; white-space: nowrap; }
.timer-subvalue { padding-top: 8px; color: var(--muted); font-size: 9px; letter-spacing: 1.5px; }
.timer-mode-switch { display: flex; width: max-content; margin: 0 auto 14px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-2); }
.mode-choice { padding: 7px 17px; border: 0; border-radius: 99px; background: transparent; color: var(--muted); font-size: 11px; cursor: pointer; }
.mode-choice.active { background: var(--surface); color: var(--blue-strong); box-shadow: 0 1px 4px rgba(32, 57, 96, .1); font-weight: 650; }
.timer-config { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 530px; margin: 0 auto 13px; }
.field-label { display: grid; gap: 7px; color: var(--ink-2); font-size: 11px; font-weight: 600; }
.field-label input, .field-label select, .field-label textarea, .custom-minutes input { width: 100%; min-width: 0; min-height: 39px; padding: 9px 11px; outline: none; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); color: var(--ink); font-size: 12px; font-weight: 450; transition: border-color .16s ease, box-shadow .16s ease; }
.field-label input:focus, .field-label select:focus, .field-label textarea:focus, .custom-minutes input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 12%, transparent); }
.field-label textarea { resize: vertical; line-height: 1.65; }
.field-label b { color: var(--red); }
.preset-row { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 7px; margin: 0 auto 12px; }
.preset { padding: 7px 11px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--ink-2); font-size: 10px; cursor: pointer; }
.preset.active { border-color: color-mix(in srgb, var(--blue) 45%, var(--line)); background: var(--blue-soft); color: var(--blue-strong); }
.custom-minutes { position: relative; width: 94px; }
.custom-minutes input { min-height: 32px; padding: 6px 37px 6px 9px; font-size: 10px; }
.custom-minutes span { position: absolute; top: 10px; right: 9px; color: var(--muted); font-size: 9px; }
.button { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 0 15px; border: 1px solid transparent; border-radius: 11px; font-size: 11px; font-weight: 650; cursor: pointer; transition: transform .16s ease, background .16s ease, box-shadow .16s ease, border-color .16s ease; }
.button:active { transform: scale(.97); }
.button:disabled { opacity: .45; cursor: not-allowed; }
.button-primary { background: var(--blue); color: #fff; box-shadow: 0 4px 10px color-mix(in srgb, var(--blue) 20%, transparent); }
.button-primary:hover { background: var(--blue-strong); box-shadow: 0 6px 14px color-mix(in srgb, var(--blue) 26%, transparent); }
.button-secondary { border-color: var(--line-strong); background: var(--surface); color: var(--ink-2); }
.button-secondary:hover, .button-soft:hover { background: var(--surface-3); }
.button-soft { background: var(--blue-soft); color: var(--blue-strong); border-color: color-mix(in srgb, var(--blue) 10%, transparent); }
.button-quiet { background: var(--surface-2); border-color: var(--line); color: var(--ink-2); }
.button-danger { background: var(--red); color: #fff; }
.button-danger-quiet { background: color-mix(in srgb, var(--red) 9%, var(--surface)); color: var(--red); }
.button-small { min-height: 31px; padding: 0 11px; border-radius: 9px; font-size: 10px; }
.button-quiet { box-shadow: none; }
.timer-start { width: min(100%, 330px); min-height: 43px; display: flex; margin: 0 auto; border-radius: 12px; }
.timer-meta { justify-content: center; flex-wrap: wrap; margin: -4px 0 13px; }
.meta-chip { padding: 5px 9px; border-radius: 8px; background: var(--blue-soft); color: var(--blue-strong); font-size: 10px; }
.meta-chip.subject-chip { border: 1px solid color-mix(in srgb, var(--tag-color) 28%, transparent); background: color-mix(in srgb, var(--tag-color) 13%, var(--surface)); color: var(--tag-color); font-weight: 650; }
.timer-subject-select { display: flex; align-items: center; gap: 7px; }
.timer-subject-select select { flex: 1; width: 0; min-width: 0; }
.timer-subject-preview { flex: 0 0 auto; }
.meta-muted { color: var(--muted); font-size: 10px; }
.timer-actions { justify-content: center; }
.timer-actions .button { min-width: 130px; }
.timer-footnote { display: flex; align-items: center; justify-content: center; gap: 17px; margin-top: 16px; color: var(--muted-2); font-size: 9px; }
.timer-footnote span { display: inline-flex; align-items: center; gap: 5px; }
.today-side { display: grid; grid-template-rows: 1fr 1fr; gap: 17px; }
.summary-card, .subject-card { padding: 21px 22px 17px; }
.card-heading { align-items: flex-start; }
.card-heading .eyebrow { margin-bottom: 6px; }
.summary-icon, .settings-icon { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; }
.summary-icon.blue, .settings-icon.blue { background: var(--blue-soft); color: var(--blue); }
.summary-icon.violet, .settings-icon.violet { background: color-mix(in srgb, var(--violet) 12%, var(--surface)); color: var(--violet); }
.settings-icon.teal { background: color-mix(in srgb, var(--teal) 12%, var(--surface)); color: var(--teal); }
.settings-icon.amber { background: color-mix(in srgb, var(--amber) 13%, var(--surface)); color: var(--amber); }
.summary-big { display: grid; gap: 3px; padding: 13px 0 12px; }
.summary-big strong { font-size: 27px; letter-spacing: -1px; font-variant-numeric: tabular-nums; }
.summary-big span, .summary-pair span { color: var(--muted); font-size: 10px; }
.summary-divider, .about-divider { height: 1px; background: var(--line); }
.summary-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 13px 0 10px; }
.summary-pair div { display: grid; gap: 4px; }
.summary-pair strong { font-size: 19px; font-variant-numeric: tabular-nums; }
.summary-pair strong small { color: var(--muted); font-size: 12px; font-weight: 500; }
.summary-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-top: 11px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.text-button { display: inline-flex; align-items: center; gap: 4px; padding: 3px 0; border: 0; background: transparent; color: var(--blue-strong); font-size: 10px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.text-button:hover { opacity: .75; }
.subject-stat-list { display: grid; gap: 10px; padding-top: 16px; }
.subject-stat-row { display: grid; grid-template-columns: 90px 1fr 62px; align-items: center; gap: 9px; }
.subject-stat-name { display: flex; align-items: center; gap: 7px; min-width: 0; color: var(--ink-2); font-size: 10px; white-space: nowrap; }
.subject-dot { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; }
.subject-stat-track, .progress-track, .estimate-track { height: 6px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.subject-stat-track span { height: 100%; display: block; border-radius: inherit; }
.subject-stat-time { text-align: right; color: var(--ink-2); font-size: 10px; font-variant-numeric: tabular-nums; }
.subject-total { display: flex; align-items: center; justify-content: space-between; padding-top: 11px; margin-top: 10px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.subject-total strong { color: var(--ink); font-size: 12px; }
.empty-inline { color: var(--muted); font-size: 10px; line-height: 1.7; padding: 7px 0; }

.section-block { margin-top: 30px; }
.section-heading { margin-bottom: 12px; }
.section-heading h2 { display: flex; align-items: center; gap: 9px; font-size: 18px; }
.heading-count { padding: 3px 7px; border-radius: 7px; background: var(--surface-3); color: var(--muted); font-size: 10px; font-weight: 600; }
.section-actions { display: flex; align-items: center; gap: 15px; }
.task-card { padding: 17px 22px 5px; }
.task-progress-top { margin-bottom: 9px; color: var(--muted); font-size: 10px; }
.task-progress-top strong { color: var(--blue-strong); font-size: 11px; }
.progress-track { height: 5px; margin-bottom: 10px; }
.progress-track span { height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, var(--blue), #81a6ef); transition: width .3s ease; }
.task-list { display: grid; }
.task-row { min-height: 68px; display: flex; align-items: center; gap: 13px; border-top: 1px solid var(--line); }
.task-check { width: 21px; height: 21px; flex: 0 0 21px; display: flex; align-items: center; justify-content: center; padding: 0; border: 1.5px solid var(--line-strong); border-radius: 7px; background: transparent; color: #fff; cursor: pointer; transition: background .17s ease, border-color .17s ease, transform .17s ease; }
.task-check:hover { border-color: var(--blue); }
.task-check:active { transform: scale(.9); }
.task-check.checked { border-color: var(--blue); background: var(--blue); }
.task-main { flex: 1; min-width: 0; }
.task-title { overflow: hidden; color: var(--ink); font-size: 12px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.is-complete .task-title { color: var(--muted); text-decoration: line-through; }
.task-subline { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 7px; color: var(--muted); font-size: 9px; }
.subject-tag { display: inline-flex; align-items: center; width: max-content; max-width: 100%; padding: 3px 7px; border: 1px solid color-mix(in srgb, var(--tag-color, var(--slate)) 22%, transparent); border-radius: 6px; background: color-mix(in srgb, var(--tag-color, var(--slate)) 12%, var(--surface)); color: var(--tag-color, var(--slate)); font-size: 9px; line-height: 1.3; white-space: nowrap; }
.subject-training { background: var(--blue-soft); color: var(--blue-strong); }
.subject-physiology { background: color-mix(in srgb, var(--violet) 12%, var(--surface)); color: var(--violet); }
.subject-english { background: color-mix(in srgb, var(--teal) 12%, var(--surface)); color: var(--teal); }
.subject-politics { background: color-mix(in srgb, var(--amber) 14%, var(--surface)); color: var(--amber); }
.subject-other { background: var(--surface-3); color: var(--muted); }
.priority-label { color: var(--red); }
.task-row-actions { display: flex; gap: 4px; opacity: .68; transition: opacity .16s ease; }
.task-row:hover .task-row-actions { opacity: 1; }
.tiny-icon-button { width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 9px; background: transparent; color: var(--muted); cursor: pointer; }
.tiny-icon-button:hover { background: var(--surface-3); color: var(--blue-strong); }
.empty-state { display: grid; justify-items: center; padding: 32px 14px; text-align: center; }
.empty-state.compact { padding: 25px 12px; }
.empty-illustration { width: 47px; height: 47px; display: flex; align-items: center; justify-content: center; margin-bottom: 11px; border-radius: 16px; background: var(--blue-soft); color: var(--blue); }
.empty-state strong { font-size: 12px; }
.empty-state p { max-width: 340px; margin: 7px 0 13px; color: var(--muted); font-size: 10px; line-height: 1.7; }
.bottom-insight-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 17px; margin-top: 17px; }
.insight-card, .streak-card { padding: 20px 22px; }
.insight-copy { margin: 16px 0; color: var(--ink-2); font-size: 12px; line-height: 1.9; }
.insight-note-row { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 9px; }
.note-spark { color: var(--violet); font-size: 15px; }
.streak-card { background: linear-gradient(145deg, color-mix(in srgb, var(--blue-soft) 75%, var(--surface)), var(--surface)); }
.streak-top { display: flex; align-items: center; justify-content: space-between; }
.streak-symbol { color: var(--violet); font-size: 20px; }
.streak-number { display: flex; align-items: baseline; gap: 6px; margin: 8px 0 1px; }
.streak-number strong { font-size: 38px; letter-spacing: -2px; }
.streak-number span { color: var(--muted); font-size: 12px; }
.streak-label { color: var(--muted); font-size: 10px; }
.streak-bottom { display: flex; align-items: center; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.streak-bottom span { color: var(--muted); font-size: 9px; }
.streak-bottom strong { margin-right: auto; font-size: 11px; }

.page-title-row { margin-bottom: 23px; }
.page-title-row .button { flex: 0 0 auto; }
.planner-card { padding: 22px 25px 21px; }
.planner-toolbar h2 { margin-top: 2px; font-size: 15px; }
.date-controls { display: flex; align-items: center; gap: 6px; }
.date-controls .icon-button { width: 31px; height: 31px; border-radius: 9px; font-size: 20px; }
.week-strip { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; margin: 20px 0 23px; }
.week-day { min-height: 83px; display: grid; justify-items: center; align-content: center; gap: 5px; padding: 8px 3px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); color: var(--muted); cursor: pointer; transition: background .16s ease, border .16s ease, transform .16s ease; }
.week-day:active { transform: scale(.96); }
.week-day span { font-size: 9px; }
.week-day strong { color: var(--ink-2); font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
.week-day.selected { border-color: color-mix(in srgb, var(--blue) 45%, var(--line)); background: var(--blue-soft); color: var(--blue-strong); }
.week-day.selected strong { color: var(--blue-strong); }
.week-day.is-today:not(.selected) { border-color: color-mix(in srgb, var(--blue) 22%, var(--line)); }
.day-dots { display: flex; gap: 4px; height: 5px; }
.day-dots b { width: 4px; height: 4px; border-radius: 50%; background: var(--amber); }
.day-dots b.blue-dot { background: var(--blue); }
.planner-day-header { align-items: center; margin: 0 0 15px; }
.planner-day-header h3 small { margin-left: 7px; color: var(--muted); font-size: 10px; font-weight: 450; }
.planner-quick-actions { display: flex; gap: 14px; }
.planner-task-list { margin-top: 5px; }
.planner-hint { display: flex; gap: 9px; margin-top: 14px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); color: var(--muted); font-size: 10px; line-height: 1.65; }
.hint-icon { color: var(--violet); font-size: 15px; }


.daily-history-card { padding: 19px 22px 14px; margin-bottom: 16px; overflow: hidden; }
.daily-history-card .card-heading { align-items: flex-start; }
.daily-history-card .card-heading h2 { font-size: 15px; }
.history-range { margin: 5px 0 0; color: var(--muted); font-size: 9px; }
.history-selected { display: grid; gap: 4px; text-align: right; white-space: nowrap; }
.history-selected strong { color: var(--blue-strong); font-size: 17px; font-variant-numeric: tabular-nums; }
.history-selected span { color: var(--muted); font-size: 8px; }
.daily-history-scroll { display: flex; align-items: stretch; gap: 7px; overflow-x: auto; overscroll-behavior-x: contain; padding: 12px 2px 9px; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; -webkit-overflow-scrolling: touch; scroll-snap-type: x proximity; touch-action: pan-x pan-y; }
.history-day-bar { flex: 0 0 45px; min-width: 0; height: 151px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 5px; padding: 3px 1px 0; border: 1px solid transparent; border-radius: 10px; background: transparent; color: var(--muted); cursor: pointer; scroll-snap-align: center; transition: background .15s ease, border-color .15s ease; }
.history-day-bar:hover { background: var(--surface-2); }
.history-day-value { min-height: 12px; width: 100%; overflow: hidden; color: var(--muted); font-size: 7px; line-height: 1; text-align: center; white-space: nowrap; }
.history-bar-rail { width: 23px; height: 105px; display: flex; align-items: flex-end; overflow: hidden; border-radius: 7px 7px 4px 4px; background: var(--surface-2); }
.history-bar-rail i { width: 100%; min-height: 0; display: block; border-radius: 6px 6px 3px 3px; background: linear-gradient(180deg, #89adf2, #4d82e8); transition: height .25s ease; }
.history-day-bar.selected { border-color: color-mix(in srgb, var(--blue) 35%, var(--line)); background: var(--blue-soft); }
.history-day-bar.selected .history-day-value, .history-day-bar.selected .history-day-label b { color: var(--blue-strong); font-weight: 700; }
.history-day-bar.selected .history-bar-rail i { background: linear-gradient(180deg, #6d9bf0, #326fdc); }
.history-day-label { display: grid; gap: 2px; text-align: center; }
.history-day-label b { color: var(--ink-2); font-size: 9px; line-height: 1; font-weight: 550; }
.history-day-label small { color: var(--muted-2); font-size: 7px; line-height: 1; }
.history-chart-foot { display: flex; justify-content: space-between; gap: 10px; padding-top: 8px; border-top: 1px solid var(--line); color: var(--muted-2); font-size: 8px; }
.history-chart-foot span { display: flex; align-items: center; gap: 5px; }
.history-chart-foot i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
.checkin-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; margin-bottom: 17px; }
.checkin-stat { display: grid; gap: 5px; padding: 18px 20px; }
.stat-kicker { color: var(--muted); font-size: 10px; }
.checkin-stat strong { font-size: 27px; letter-spacing: -.9px; font-variant-numeric: tabular-nums; }
.checkin-stat strong small { margin-left: 4px; color: var(--muted); font-size: 11px; font-weight: 500; }
.stat-foot { color: var(--muted-2); font-size: 9px; }
.checkin-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .8fr); gap: 16px; }
.calendar-card, .selected-day-card { padding: 22px 23px; }
.calendar-weekdays, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; }
.calendar-weekdays { margin: 20px 0 7px; }
.calendar-weekdays span { color: var(--muted); text-align: center; font-size: 10px; }
.calendar-day { min-height: 56px; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border: 1px solid transparent; border-radius: 11px; background: transparent; color: var(--ink-2); cursor: pointer; transition: background .15s ease, border .15s ease; }
.calendar-day:hover { background: var(--surface-2); }
.calendar-day span { font-size: 11px; }
.calendar-day.outside { color: var(--muted-2); opacity: .45; }
.calendar-day.today span { color: var(--blue-strong); font-weight: 700; }
.calendar-day.selected { border-color: color-mix(in srgb, var(--blue) 45%, var(--line)); background: var(--blue-soft); color: var(--blue-strong); }
.calendar-intensity { width: 16px; height: 4px; border-radius: 99px; background: transparent; }
.intensity-1 { background: color-mix(in srgb, var(--blue) 27%, var(--surface)); }
.intensity-2 { background: color-mix(in srgb, var(--blue) 46%, var(--surface)); }
.intensity-3 { background: color-mix(in srgb, var(--blue) 70%, var(--surface)); }
.intensity-4 { background: var(--blue); }
.calendar-check { position: absolute; top: 4px; right: 7px; color: var(--teal); font-size: 9px; font-weight: 700; }
.calendar-legend { display: flex; align-items: center; gap: 17px; margin-top: 16px; color: var(--muted); font-size: 9px; }
.calendar-legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-learning, .legend-check { width: 9px; height: 9px; display: inline-flex; align-items: center; justify-content: center; border-radius: 3px; background: var(--blue); }
.legend-check { background: color-mix(in srgb, var(--teal) 14%, var(--surface)); color: var(--teal); font-size: 8px; }
.selected-day-card .eyebrow { margin-bottom: 6px; }
.selected-day-card h2 { font-size: 17px; }
.selected-day-total { display: grid; gap: 3px; padding: 20px 0 15px; }
.selected-day-total strong { font-size: 29px; letter-spacing: -1px; }
.selected-day-total span { color: var(--muted); font-size: 10px; }
.detail-status-row { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.detail-status-row strong { color: var(--ink-2); font-size: 10px; }
.status-done { color: var(--teal) !important; }
.status-muted { color: var(--muted) !important; }
.divider-space { height: 1px; margin: 4px 0 14px; background: var(--line); }
.small-section-title { margin-bottom: 5px; font-size: 11px; }
.full-width { width: 100%; margin-top: 18px; }

.segmented-control { display: inline-flex; gap: 3px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
.segmented-control button { min-height: 31px; padding: 0 12px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); font-size: 10px; cursor: pointer; }
.segmented-control button.active { background: var(--blue-soft); color: var(--blue-strong); font-weight: 650; }
.analytics-date-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 15px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.analytics-date-bar strong { font-size: 14px; }
.analytics-date-bar .eyebrow { display: inline-block; margin: 0 11px 0 0; }
.metric-grid { display: grid; gap: 12px; margin-bottom: 15px; }
.metric-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric-card { min-height: 108px; display: flex; flex-direction: column; align-items: flex-start; padding: 16px 17px; }
.metric-card > span { color: var(--muted); font-size: 10px; }
.metric-card strong { margin: 7px 0 3px; font-size: 23px; font-weight: 700; letter-spacing: -.7px; font-variant-numeric: tabular-nums; }
.metric-card strong em { color: var(--muted); font-size: 14px; font-style: normal; font-weight: 500; }
.metric-card small { color: var(--muted-2); font-size: 9px; }
.analytics-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px; }
.chart-card { min-width: 0; padding: 20px 21px; }
.chart-card .card-heading { margin-bottom: 17px; }
.chart-caption { color: var(--muted); font-size: 9px; }
.donut-layout { display: flex; align-items: center; gap: clamp(16px, 3vw, 35px); min-height: 175px; }
.donut-chart { width: 160px; height: 160px; flex: 0 0 160px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.donut-hole { width: 112px; height: 112px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; background: var(--surface); }
.donut-hole strong { max-width: 96px; overflow: hidden; color: var(--ink); font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.donut-hole span { margin-top: 3px; color: var(--muted); font-size: 9px; }
.donut-legend { flex: 1; min-width: 0; display: grid; gap: 10px; }
.donut-legend > div { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 3px 8px; }
.legend-name { display: flex; align-items: center; gap: 7px; color: var(--ink-2); font-size: 10px; }
.legend-name i { width: 7px; height: 7px; border-radius: 50%; }
.donut-legend strong { font-size: 10px; }
.donut-legend small { grid-column: 1 / -1; padding-left: 14px; color: var(--muted); font-size: 9px; }
.hourly-chart { height: 144px; display: grid; grid-template-columns: repeat(24, minmax(0, 1fr)); align-items: end; gap: 3px; padding: 6px 2px 0; border-bottom: 1px solid var(--line); }
.hour-column { height: 100%; min-width: 0; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 5px; }
.hour-bar-wrap { width: 100%; height: 115px; display: flex; align-items: flex-end; justify-content: center; }
.hour-bar-wrap i { display: block; width: min(100%, 12px); min-height: 0; border-radius: 4px 4px 2px 2px; background: linear-gradient(180deg, #8eb1f3, #4b80e4); }
.hour-column span { min-height: 11px; color: var(--muted-2); font-size: 7px; }
.chart-axis { display: flex; justify-content: space-between; margin-top: 7px; color: var(--muted-2); font-size: 8px; }
.estimate-list { display: grid; gap: 17px; padding: 3px 0; }
.estimate-top { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.estimate-top span { overflow: hidden; color: var(--ink-2); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.estimate-top small { flex: 0 0 auto; color: var(--muted); font-size: 9px; }
.estimate-track { height: 8px; position: relative; }
.estimate-track i { position: absolute; left: 0; top: 0; height: 100%; border-radius: inherit; }
.estimate-planned { background: color-mix(in srgb, var(--violet) 45%, var(--surface-3)); }
.estimate-actual { background: var(--blue); }
.chart-legend-inline { display: flex; gap: 13px; margin-top: 16px; color: var(--muted); font-size: 9px; }
.chart-legend-inline span { display: flex; align-items: center; gap: 5px; }
.chart-legend-inline i { width: 8px; height: 8px; border-radius: 2px; }
.chart-legend-inline i.estimate-planned { background: color-mix(in srgb, var(--violet) 70%, var(--surface)); }
.chart-legend-inline i.estimate-actual { background: var(--blue); }
.pending-list { display: grid; }
.pending-item { display: flex; align-items: center; gap: 9px; padding: 11px 0; border-top: 1px solid var(--line); }
.pending-item:first-child { border-top: 0; }
.pending-item > div { flex: 1; min-width: 0; display: grid; gap: 4px; }
.pending-item strong { overflow: hidden; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.pending-item small { color: var(--muted); font-size: 9px; }
.daily-review-card { padding: 21px 23px; margin-bottom: 15px; }
.auto-label { padding: 5px 8px; border-radius: 7px; background: var(--surface-2); color: var(--muted); font-size: 9px; }
.generated-summary { margin: 14px 0 17px; color: var(--ink-2); font-size: 11px; line-height: 1.9; }
.review-input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.review-input-grid textarea { min-height: 80px; }
.review-footer { margin-top: 15px; padding-top: 13px; border-top: 1px solid var(--line); }
.review-footer > span { color: var(--muted); font-size: 9px; }
.weekly-bar-chart { height: 235px; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); align-items: end; gap: 12px; padding: 10px 6px 0; }
.week-bar-column { height: 100%; display: grid; grid-template-rows: 20px 1fr 18px 14px; justify-items: center; gap: 3px; }
.week-bar-value { color: var(--muted); font-size: 8px; white-space: nowrap; }
.week-bar-outer { width: 100%; height: 100%; display: flex; align-items: flex-end; justify-content: center; border-radius: 9px 9px 4px 4px; background: var(--surface-2); }
.week-bar-outer i { width: min(42px, 80%); min-height: 0; border-radius: 8px 8px 3px 3px; background: linear-gradient(180deg, #85aaf1, #4b80e4); transition: height .25s ease; }
.week-bar-column span { color: var(--ink-2); font-size: 9px; }
.week-bar-column small { color: var(--muted-2); font-size: 8px; }
.weekly-subject-list { display: grid; gap: 17px; padding: 10px 0; }
.weekly-subject-row { display: grid; grid-template-columns: 85px 1fr 70px 33px; align-items: center; gap: 8px; }
.weekly-subject-row > strong { text-align: right; font-size: 9px; }
.weekly-subject-row > small { color: var(--muted); text-align: right; font-size: 8px; }
.compare-bars { display: grid; gap: 19px; padding: 15px 0 23px; }
.compare-row { display: grid; grid-template-columns: 38px 1fr 82px; align-items: center; gap: 10px; }
.compare-row > span { color: var(--muted); font-size: 9px; }
.compare-row > div { height: 10px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.compare-row i { display: block; height: 100%; border-radius: inherit; background: color-mix(in srgb, var(--violet) 70%, var(--surface)); }
.compare-row i.current { background: var(--blue); }
.compare-row strong { text-align: right; font-size: 10px; }
.week-key-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.week-key-metrics div { display: grid; gap: 5px; }
.week-key-metrics span { color: var(--muted); font-size: 9px; }
.week-key-metrics strong { font-size: 11px; }
.task-rate-visual { display: flex; align-items: center; gap: 22px; padding: 18px 4px 24px; }
.rate-ring { width: 126px; height: 126px; flex: 0 0 126px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: conic-gradient(var(--blue) var(--rate), var(--surface-3) 0); }
.rate-ring > div { width: 98px; height: 98px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; background: var(--surface); }
.rate-ring strong { font-size: 22px; }
.rate-ring span { color: var(--muted); font-size: 9px; }
.rate-detail { display: grid; gap: 7px; }
.rate-detail strong { font-size: 11px; }
.rate-detail span, .rate-detail small { color: var(--muted); font-size: 9px; }
.weekly-recommendations { display: grid; gap: 10px; margin: -1px 0 14px; }
.weekly-recommendations div { display: flex; align-items: flex-start; gap: 8px; color: var(--ink-2); font-size: 10px; line-height: 1.7; }
.recommend-icon { color: var(--blue); font-size: 14px; }
.weekly-summary-text { padding: 13px 15px; border-radius: 12px; background: var(--surface-2); }
.review-footer > div { display: flex; gap: 8px; }

.settings-layout { display: grid; grid-template-columns: minmax(0, 1fr) 270px; align-items: start; gap: 16px; }
.settings-main { display: grid; gap: 14px; }
.settings-card { padding: 21px 23px; }
.settings-card-title > div { display: flex; align-items: center; gap: 12px; }
.settings-card-title h2 { font-size: 14px; }
.settings-card-title p { margin: 4px 0 0; color: var(--muted); font-size: 10px; }

.subject-color-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin-top: 18px; }
.subject-color-control { min-width: 0; display: grid; grid-template-columns: auto 1fr 36px; align-items: center; gap: 9px; padding: 10px 11px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); cursor: pointer; }
.subject-color-hint { min-width: 0; overflow: hidden; color: var(--muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.subject-color-control input[type="color"] { width: 34px; height: 30px; padding: 2px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); cursor: pointer; }
.settings-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.settings-help { color: var(--muted-2); font-size: 8px; line-height: 1.5; }
.theme-options { display: flex; gap: 12px; margin-top: 20px; }
.theme-option { width: 105px; display: grid; gap: 8px; padding: 7px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); cursor: pointer; }
.theme-option.selected { border-color: var(--blue); background: var(--blue-soft); }
.theme-option strong { font-size: 10px; }
.theme-preview { height: 52px; display: block; border-radius: 8px; border: 1px solid var(--line); }
.light-preview { background: linear-gradient(90deg, #f2f5fa 0 28%, #fff 28% 100%); }
.dark-preview { background: linear-gradient(90deg, #131c2a 0 28%, #243147 28% 100%); }
.system-preview { background: linear-gradient(90deg, #f3f6fb 0 50%, #243147 50% 100%); }
.data-action-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 0; border-top: 1px solid var(--line); }
.settings-card-title + .data-action-row, .settings-card-title + .theme-options { margin-top: 19px; }
.data-action-row > div { display: grid; gap: 5px; }
.data-action-row strong { font-size: 11px; }
.data-action-row small { color: var(--muted); font-size: 9px; }
.settings-callout { display: flex; align-items: flex-start; gap: 8px; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); color: var(--muted); font-size: 9px; line-height: 1.65; }
.settings-callout svg { flex: 0 0 16px; color: var(--teal); }
.legacy-info { margin-top: 18px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); }
.legacy-info strong { font-size: 10px; }
.legacy-info p { margin: 6px 0 0; color: var(--muted); font-size: 9px; line-height: 1.75; }
.settings-aside { display: grid; gap: 12px; }
.about-card { display: grid; justify-items: center; padding: 25px 20px 17px; }
.about-mark { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; border-radius: 17px; background: linear-gradient(145deg, #5b94f2, #326bd4); color: white; font-size: 17px; font-weight: 700; box-shadow: 0 7px 18px rgba(56, 115, 220, .22); }
.about-card h2 { margin: 13px 0 5px; }
.about-card > p { margin: 0 0 18px; color: var(--muted); font-size: 10px; }
.about-divider { width: 100%; margin-bottom: 8px; }
.about-detail { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 9px; }
.about-detail:last-child { border-bottom: 0; }
.about-detail span { color: var(--muted); }
.about-detail strong { color: var(--ink-2); font-size: 9px; }
.settings-footnote { color: var(--muted); text-align: center; font-size: 9px; }

.modal-backdrop { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(18, 29, 48, .34); opacity: 0; transition: opacity .16s ease; backdrop-filter: blur(3px); }
.modal-backdrop.visible { opacity: 1; }
.modal-card { width: min(100%, 470px); max-height: min(90vh, 760px); overflow: auto; padding: 23px 24px 21px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); box-shadow: var(--shadow-float); transform: translateY(8px) scale(.99); transition: transform .18s ease; }
.visible .modal-card { transform: translateY(0) scale(1); }
.modal-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; margin-bottom: 19px; }
.modal-header .eyebrow { margin-bottom: 5px; }
.modal-header h2 { font-size: 18px; }
.modal-close { width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; border: 0; border-radius: 9px; background: var(--surface-2); color: var(--muted); font-size: 20px; cursor: pointer; }
.modal-form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.advanced-fields { border-top: 1px solid var(--line); padding-top: 11px; }
.advanced-fields summary { color: var(--muted); font-size: 10px; cursor: pointer; }
.advanced-fields textarea { width: 100%; margin-top: 10px; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); color: var(--ink); font-size: 11px; resize: vertical; }
.modal-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; margin-top: 8px; padding-top: 14px; border-top: 1px solid var(--line); }
.modal-actions .button-primary { min-width: 100px; }
.modal-copy { margin: -4px 0 18px; color: var(--ink-2); font-size: 11px; line-height: 1.8; }
.import-count-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 15px 0; }
.import-count-grid div { display: grid; justify-items: center; gap: 5px; padding: 13px 5px; border-radius: 11px; background: var(--surface-2); }
.import-count-grid strong { color: var(--blue-strong); font-size: 19px; }
.import-count-grid span { color: var(--muted); font-size: 9px; }
.toast-root { position: fixed; left: 50%; bottom: calc(26px + env(safe-area-inset-bottom)); z-index: 100; display: grid; justify-items: center; gap: 8px; width: max-content; max-width: calc(100vw - 30px); transform: translateX(-50%); pointer-events: none; }
.toast { display: flex; align-items: center; gap: 15px; max-width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: var(--shadow-float); color: var(--ink-2); font-size: 11px; opacity: 0; transform: translateY(8px); transition: opacity .18s ease, transform .18s ease; pointer-events: auto; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast-error { border-color: color-mix(in srgb, var(--red) 30%, var(--line)); }
.toast-action { padding: 2px 0; border: 0; background: transparent; color: var(--blue-strong); font-size: 10px; font-weight: 700; cursor: pointer; }
.fatal-state { min-height: 50vh; display: grid; justify-items: center; align-content: center; text-align: center; }
.fatal-symbol { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--red) 12%, var(--surface)); color: var(--red); font-size: 22px; }
.fatal-state h1 { margin: 15px 0 7px; font-size: 21px; }
.fatal-state p { max-width: 420px; margin-bottom: 17px; color: var(--muted); font-size: 11px; }

@media (min-width: 1500px) {
  .page-content { padding-top: 42px; }
  .timer-card { min-height: 445px; }
  .timer-ring { width: 218px; height: 218px; }
}
@media (max-width: 1120px) {
  :root { --sidebar-width: 210px; }
  .page-content { padding-left: 28px; padding-right: 28px; }
  .topbar { padding-left: 28px; padding-right: 28px; }
  .today-grid { grid-template-columns: minmax(0, 1.25fr) minmax(260px, .9fr); }
  .timer-card { padding-left: 20px; padding-right: 20px; }
  .summary-card, .subject-card { padding-left: 17px; padding-right: 17px; }
  .subject-stat-row { grid-template-columns: 83px 1fr 56px; gap: 6px; }
  .donut-layout { gap: 14px; }
  .donut-chart { width: 135px; height: 135px; flex-basis: 135px; }
  .donut-hole { width: 96px; height: 96px; }
}
@media (max-width: 860px) {
  .sidebar { display: none; }
  .topbar { height: calc(62px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) 22px 0; }
  .mobile-brand { display: flex; }
  .breadcrumb { display: none; }
  .page-content { padding: 26px 22px calc(96px + env(safe-area-inset-bottom)); }
  .mobile-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; padding: 8px 10px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 94%, transparent); backdrop-filter: blur(16px); }
  .mobile-nav-item { min-height: 48px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: var(--muted); font-size: 9px; }
  .mobile-nav-item.active { color: var(--blue-strong); font-weight: 700; }
  .today-grid { grid-template-columns: 1fr; }
  .today-side { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .timer-card { min-height: 405px; }
  .bottom-insight-grid { grid-template-columns: 1.35fr 1fr; }
  .checkin-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-layout { grid-template-columns: 1fr; }
  .settings-aside { grid-template-columns: minmax(0, 1fr); }
  .about-card { justify-items: start; }
  .about-mark { align-self: center; }
  .about-card h2, .about-card > p { align-self: center; }
  .about-detail { max-width: 500px; }
}
@media (max-width: 620px) {
  .topbar { padding: 0 15px; }
  .page-content { padding: 22px 14px calc(94px + env(safe-area-inset-bottom)); padding-left: max(14px, env(safe-area-inset-left)); padding-right: max(14px, env(safe-area-inset-right)); }
  .topbar-actions { gap: 8px; }
  .offline-pill { padding: 6px 8px; font-size: 9px; }
  .icon-button { width: 33px; height: 33px; }
  .welcome-row, .page-title-row { align-items: flex-start; gap: 10px; margin-bottom: 18px; }
  .welcome-row { align-items: center; }
  h1 { font-size: 25px; }
  .welcome-row p, .page-title-row p { max-width: 290px; font-size: 10px; line-height: 1.6; }
  .welcome-date { gap: 7px; padding-right: 9px; font-size: 9px; }
  .welcome-date strong { font-size: 21px; }
  .timer-card { min-height: 395px; padding: 20px 15px 16px; }
  .timer-ring { width: 180px; height: 180px; }
  .timer-value { font-size: 29px; letter-spacing: -1.4px; }
  .timer-center { padding: 13px 0 11px; }
  .timer-config { gap: 8px; }
  .timer-config .field-label { font-size: 10px; }
  .timer-config select { padding-left: 7px; font-size: 10px; }
  .preset-row { gap: 5px; }
  .preset { padding: 7px 8px; font-size: 9px; }
  .timer-footnote { gap: 10px; font-size: 8px; }
  .today-side { gap: 10px; }
  .summary-card, .subject-card { padding: 15px 13px 13px; border-radius: 15px; }
  .card-heading h2 { font-size: 14px; }
  .summary-icon { width: 30px; height: 30px; border-radius: 10px; }
  .summary-big strong { font-size: 22px; }
  .summary-pair { gap: 6px; }
  .summary-pair strong { font-size: 16px; }
  .summary-pair span { font-size: 9px; }
  .summary-footer { align-items: flex-start; flex-direction: column; gap: 6px; font-size: 9px; }
  .subject-stat-list { gap: 9px; padding-top: 12px; }
  .subject-stat-row { grid-template-columns: 1fr 45px; gap: 5px 8px; }
  .subject-stat-name { grid-column: 1 / -1; font-size: 9px; }
  .subject-stat-track { grid-column: 1; grid-row: 2; }
  .subject-stat-time { grid-column: 2; grid-row: 2; font-size: 9px; }
  .subject-total { font-size: 9px; }
  .section-block { margin-top: 23px; }
  .section-heading h2 { font-size: 16px; }
  .section-actions { gap: 9px; }
  .section-actions .button { padding: 0 10px; font-size: 10px; }
  .section-actions .text-button { font-size: 9px; }
  .task-card { padding: 15px 13px 4px; }
  .task-row { min-height: 66px; gap: 9px; }
  .task-row-actions { gap: 0; }
  .tiny-icon-button { width: 27px; height: 29px; }
  .task-title { font-size: 11px; }
  .task-subline { gap: 6px; font-size: 8px; }
  .subject-tag { font-size: 8px; }
  .daily-history-card { padding: 16px 13px 12px; }
  .history-selected strong { font-size: 14px; }
  .history-day-bar { flex-basis: 42px; }
  .history-chart-foot { font-size: 7px; }
  .subject-color-grid { grid-template-columns: 1fr; gap: 7px; }
  .subject-color-control { grid-template-columns: auto 1fr 36px; }
  .settings-card-footer { align-items: flex-start; flex-direction: column; }
  .bottom-insight-grid { grid-template-columns: 1fr; gap: 10px; margin-top: 11px; }
  .insight-card, .streak-card { padding: 17px 16px; }
  .insight-copy { font-size: 10px; }
  .streak-bottom { margin-top: 12px; }
  .page-title-row .button { padding: 0 11px; font-size: 10px; }
  .planner-card { padding: 17px 13px; }
  .planner-toolbar h2 { font-size: 13px; }
  .week-strip { gap: 4px; margin: 16px 0 18px; }
  .week-day { min-height: 71px; border-radius: 10px; }
  .week-day strong { font-size: 17px; }
  .week-day span { font-size: 8px; }
  .planner-day-header { align-items: flex-start; flex-direction: column; gap: 9px; }
  .planner-quick-actions { gap: 13px; }
  .planner-quick-actions .text-button { font-size: 9px; }
  .checkin-stats-grid { gap: 9px; }
  .checkin-stat { padding: 13px 14px; }
  .checkin-stat strong { font-size: 22px; }
  .checkin-layout { grid-template-columns: 1fr; }
  .calendar-card, .selected-day-card { padding: 17px 13px; }
  .calendar-day { min-height: 47px; }
  .calendar-check { right: 4px; }
  .analytics-title-row { align-items: flex-start; flex-direction: column; }
  .analytics-title-row .segmented-control { align-self: flex-start; }
  .analytics-date-bar { padding: 10px 11px; }
  .analytics-date-bar .eyebrow { display: block; margin: 0 0 4px; }
  .analytics-date-bar strong { font-size: 11px; }
  .metric-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .metric-card { min-height: 94px; padding: 13px; }
  .metric-card strong { font-size: 20px; }
  .analytics-two-col { grid-template-columns: 1fr; gap: 10px; }
  .chart-card { padding: 16px 14px; }
  .donut-layout { min-height: 150px; gap: 15px; }
  .donut-chart { width: 125px; height: 125px; flex-basis: 125px; }
  .donut-hole { width: 88px; height: 88px; }
  .donut-hole strong { font-size: 14px; }
  .hourly-chart { height: 120px; gap: 2px; }
  .hour-bar-wrap { height: 95px; }
  .hour-column span { font-size: 6px; }
  .daily-review-card { padding: 17px 14px; }
  .review-input-grid { grid-template-columns: 1fr; }
  .review-footer { align-items: flex-start; flex-direction: column; }
  .review-footer > div { width: 100%; }
  .review-footer .button { flex: 1; }
  .weekly-bar-chart { height: 205px; gap: 6px; }
  .weekly-subject-row { grid-template-columns: 74px 1fr 59px 29px; gap: 6px; }
  .weekly-subject-row .subject-stat-name { grid-column: auto; grid-row: auto; }
  .weekly-subject-row .subject-stat-track { grid-column: auto; grid-row: auto; }
  .weekly-subject-row > strong { font-size: 8px; }
  .weekly-subject-row > small { font-size: 7px; }
  .task-rate-visual { gap: 15px; }
  .rate-ring { width: 111px; height: 111px; flex-basis: 111px; }
  .rate-ring > div { width: 86px; height: 86px; }
  .rate-ring strong { font-size: 19px; }
  .settings-card { padding: 17px 14px; }
  .data-action-row { align-items: flex-start; }
  .data-action-row > div { flex: 1; min-width: 0; }
  .data-action-row .button { padding: 0 10px; font-size: 9px; }
  .theme-options { gap: 7px; }
  .theme-option { width: 31%; padding: 6px; }
  .theme-preview { height: 42px; }
  .modal-backdrop { align-items: flex-end; padding: 0; }
  .modal-card { width: 100%; max-height: 92vh; padding: 21px 17px calc(17px + env(safe-area-inset-bottom)); border-radius: 20px 20px 0 0; transform: translateY(18px); }
  .visible .modal-card { transform: translateY(0); }
  .form-row { gap: 8px; }
  .form-row .field-label { min-width: 0; }
  .form-row input, .form-row select { font-size: 10px; padding-left: 7px; }
  .import-count-grid { gap: 5px; }
  .import-count-grid strong { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media (max-width: 370px) {
  .today-side { grid-template-columns: 1fr; }
  .summary-footer { align-items: center; flex-direction: row; }
  .timer-ring { width: 165px; height: 165px; }
  .timer-card { min-height: 380px; }
  .donut-layout { flex-direction: column; align-items: flex-start; }
  .donut-legend { width: 100%; grid-template-columns: 1fr 1fr; }
}

.session-log-list { display: grid; gap: 2px; margin-top: 11px; padding-top: 8px; border-top: 1px solid var(--line); }
.session-log-row { display: flex; align-items: center; gap: 8px; padding: 7px 0; }
.session-log-row > div { flex: 1; min-width: 0; display: grid; gap: 3px; }
.session-log-row strong { color: var(--ink-2); font-size: 9px; }
.session-log-row small { color: var(--muted); font-size: 8px; }

.pending-distribution { display: grid; gap: 9px; padding-top: 14px; border-top: 1px solid var(--line); }
.pending-distribution-title { margin-bottom: 1px; color: var(--muted); font-size: 9px; }
.pending-day { display: grid; grid-template-columns: 26px 1fr 16px; align-items: center; gap: 9px; }
.pending-day > span { color: var(--muted); font-size: 8px; }
.pending-day > i { height: 5px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.pending-day > i b { display: block; height: 100%; border-radius: inherit; background: var(--amber); }
.pending-day > strong { color: var(--ink-2); text-align: right; font-size: 9px; }

.reorder-button { color: var(--muted-2); font-size: 15px; font-weight: 600; line-height: 1; }
.reorder-button:hover { color: var(--blue-strong); }

/* Cloud sync settings */
.cloud-sync-card { border-color: color-mix(in srgb, var(--blue) 28%, var(--line)); }
.cloud-sync-card .settings-card-title { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.cloud-live-state { display:inline-flex; align-items:center; gap:7px; white-space:nowrap; color:var(--muted); font-size:9px; padding:6px 9px; border:1px solid var(--line); border-radius:999px; background:var(--surface-2); }
.cloud-live-state i { width:6px; height:6px; border-radius:50%; background:var(--amber); }
.cloud-live-state.is-live i { background:#16a36a; box-shadow:0 0 0 3px color-mix(in srgb,#16a36a 14%,transparent); }
.cloud-config-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:20px; }
.cloud-config-grid input,.cloud-login-row input { width:100%; min-width:0; margin-top:7px; padding:11px 12px; border:1px solid var(--line); border-radius:10px; background:var(--surface-2); color:var(--ink); font:inherit; font-size:11px; outline:none; }
.cloud-config-grid input:focus,.cloud-login-row input:focus { border-color:var(--blue); box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 12%,transparent); }
.cloud-config-actions { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-top:12px; }
.cloud-account-box { margin-top:16px; padding:14px; border:1px solid var(--line); border-radius:12px; background:var(--surface-2); }
.cloud-login-row { display:flex; align-items:flex-end; gap:12px; }
.cloud-login-row .field-label { flex:1; min-width:0; }
.cloud-login-row .button { flex:0 0 auto; }
.cloud-login-hint { margin:10px 0 0; color:var(--muted); font-size:10px; line-height:1.6; }
.cloud-account-meta { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.cloud-account-meta > div { display:grid; gap:5px; min-width:0; }
.cloud-account-meta strong { font-size:11px; }
.cloud-account-meta span,.cloud-account-meta small { color:var(--muted); font-size:9px; overflow-wrap:anywhere; }
.cloud-account-check { width:28px; height:28px; display:grid; place-items:center; border-radius:50%; color:#148353 !important; background:color-mix(in srgb,#16a36a 13%,transparent); font-size:14px !important; }
.cloud-account-actions { display:flex; gap:8px; margin-top:12px; padding-top:12px; border-top:1px solid var(--line); }
.cloud-setup-help { margin-top:13px; color:var(--muted); font-size:10px; line-height:1.8; }
.cloud-setup-help summary { cursor:pointer; color:var(--ink-2); font-weight:600; }
.cloud-setup-help ol { padding-left:19px; margin:9px 0; }
.cloud-setup-help code { padding:2px 5px; border-radius:5px; background:var(--surface-2); color:var(--ink-2); overflow-wrap:anywhere; }
.cloud-setup-help p { margin:0; }
@media (max-width:700px) {
  .cloud-config-grid { grid-template-columns:1fr; }
  .cloud-login-row { align-items:stretch; flex-direction:column; }
  .cloud-login-row .button { width:100%; }
  .cloud-config-actions { align-items:flex-start; flex-direction:column; }
  .cloud-sync-card .settings-card-title { align-items:flex-start; flex-direction:column; }
}

.cloud-otp-row { display:flex; align-items:flex-end; gap:12px; margin-top:12px; }
.cloud-otp-row .field-label { flex:1; min-width:0; }
.cloud-otp-row input { width:100%; margin-top:7px; padding:11px 12px; border:1px solid var(--line); border-radius:10px; background:var(--surface); color:var(--ink); font:inherit; font-size:17px; letter-spacing:5px; text-align:center; }
@media (max-width:700px) { .cloud-otp-row { align-items:stretch; flex-direction:column; } .cloud-otp-row .button { width:100%; } }

/* Subject tag management */
.subject-manager-list { display:grid; gap:8px; margin-top:17px; }
.subject-manager-row { min-height:54px; display:flex; align-items:center; gap:11px; padding:9px 11px; border:1px solid color-mix(in srgb,var(--line) 82%,transparent); border-radius:14px; background:color-mix(in srgb,var(--surface-2) 74%,transparent); }
.subject-manager-row > .subject-tag { margin-right:auto; }
.subject-color-picker { display:inline-flex; align-items:center; gap:7px; color:var(--muted); font-size:10px; cursor:pointer; white-space:nowrap; }
.subject-color-picker input[type="color"] { width:31px; height:31px; padding:2px; border:1px solid var(--line-strong); border-radius:10px; background:color-mix(in srgb,var(--surface) 70%,transparent); cursor:pointer; }
.subject-add-row { display:flex; align-items:flex-end; gap:10px; margin-top:13px; padding:13px; border:1px dashed var(--line-strong); border-radius:15px; background:color-mix(in srgb,var(--surface-2) 56%,transparent); }
.subject-add-name { flex:1; min-width:120px; }
.subject-add-color { min-height:39px; padding:0 3px 4px; }
.subject-add-row .button { flex:0 0 auto; }
.subject-manager-card .settings-card-footer { align-items:flex-start; }
.subject-manager-card .settings-help { max-width:70ch; line-height:1.65; }

/* iOS-inspired Liquid Glass surfaces: restrained blur, specular edge and layered tint. */
body {
  background:
    radial-gradient(ellipse at 12% 4%, color-mix(in srgb, #90b7ff 15%, transparent), transparent 34%),
    radial-gradient(ellipse at 91% 14%, color-mix(in srgb, #b9a7ff 13%, transparent), transparent 31%),
    radial-gradient(ellipse at 56% 95%, color-mix(in srgb, #80d7d1 8%, transparent), transparent 34%),
    var(--canvas);
  background-attachment:fixed;
}
.sidebar, .topbar, .mobile-nav {
  background:color-mix(in srgb,var(--surface) 70%,transparent);
  -webkit-backdrop-filter:blur(25px) saturate(175%);
  backdrop-filter:blur(25px) saturate(175%);
  border-color:color-mix(in srgb,var(--line-strong) 58%,transparent);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.62), inset 0 -1px 0 rgba(255,255,255,.14), 0 7px 28px rgba(32,53,87,.035);
}
.card, .modal-card, .offline-pill, .icon-button, .avatar-button, .toast {
  background-color:color-mix(in srgb,var(--surface) 78%,transparent);
  -webkit-backdrop-filter:blur(18px) saturate(165%);
  backdrop-filter:blur(18px) saturate(165%);
  border-color:color-mix(in srgb,var(--line-strong) 58%,transparent);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.66), inset 0 -1px 0 rgba(255,255,255,.12);
}
.card { position:relative; isolation:isolate; }
.card::after, .modal-card::after {
  content:""; position:absolute; top:0; left:7%; right:7%; height:1px; pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.82) 22%,rgba(255,255,255,.42) 76%,transparent);
  opacity:.8;
}
.timer-card { background-image:radial-gradient(ellipse at 50% 55%,color-mix(in srgb,var(--blue-soft) 58%,transparent) 0,transparent 66%); }
.nav-item.active, .mobile-nav-item.active { text-shadow:0 1px 0 rgba(255,255,255,.35); }
.button, .icon-button, .avatar-button, .mode-choice, .preset {
  box-shadow:inset 0 1px 0 rgba(255,255,255,.34);
  transition:transform .16s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease;
}
.button:active, .icon-button:active, .avatar-button:active, .preset:active { transform:scale(.975); }
.subject-manager-row { -webkit-backdrop-filter:blur(12px) saturate(150%); backdrop-filter:blur(12px) saturate(150%); }
.modal-backdrop { background:rgba(18,29,48,.26); -webkit-backdrop-filter:blur(10px) saturate(125%); backdrop-filter:blur(10px) saturate(125%); }
.modal-card { position:relative; overflow:hidden; }

:root[data-theme="dark"] body {
  background:
    radial-gradient(ellipse at 12% 4%,rgba(72,111,183,.19),transparent 36%),
    radial-gradient(ellipse at 91% 14%,rgba(107,86,170,.16),transparent 33%),
    radial-gradient(ellipse at 56% 95%,rgba(48,130,127,.10),transparent 36%),
    var(--canvas);
  background-attachment:fixed;
}
:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .topbar,
:root[data-theme="dark"] .mobile-nav {
  background:rgba(20,29,43,.72);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12), inset 0 -1px 0 rgba(255,255,255,.035), 0 9px 34px rgba(0,0,0,.14);
}
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .modal-card,
:root[data-theme="dark"] .offline-pill,
:root[data-theme="dark"] .icon-button,
:root[data-theme="dark"] .avatar-button,
:root[data-theme="dark"] .toast {
  background-color:rgba(25,35,51,.78);
  border-color:rgba(205,220,242,.13);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.13),inset 0 -1px 0 rgba(255,255,255,.035);
}
:root[data-theme="dark"] .card::after,
:root[data-theme="dark"] .modal-card::after { background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent); }

@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))) {
  .sidebar,.topbar,.mobile-nav { background:var(--surface); }
  .card,.modal-card,.offline-pill,.icon-button,.avatar-button,.toast { background-color:var(--surface); }
}
@media (max-width:700px) {
  .subject-add-row { display:grid; grid-template-columns:minmax(0,1fr) auto; align-items:end; }
  .subject-add-name { grid-column:1 / -1; }
  .subject-add-row > .button { width:100%; }
  .subject-manager-row { gap:7px; padding:8px; }
}
@media (prefers-reduced-motion:reduce) {
  .button,.icon-button,.avatar-button,.mode-choice,.preset { transition:none !important; }
  .button:active,.icon-button:active,.avatar-button:active,.preset:active { transform:none; }
}

/* Liquid Glass refinement — layered translucency with restrained specular highlights. */
.app-frame { isolation:isolate; }
.sidebar, .topbar, .mobile-nav {
  background-image:
    linear-gradient(142deg, rgba(255,255,255,.52), rgba(255,255,255,.06) 42%, rgba(255,255,255,.17)),
    radial-gradient(120% 90% at 0% 0%, rgba(126,168,245,.12), transparent 62%);
  -webkit-backdrop-filter: blur(30px) saturate(185%);
  backdrop-filter: blur(30px) saturate(185%);
}
.card, .modal-card, .subject-manager-row, .settings-callout, .cloud-account-box {
  background-image:
    linear-gradient(148deg, rgba(255,255,255,.34), rgba(255,255,255,.045) 38%, rgba(255,255,255,.12)),
    radial-gradient(115% 95% at 0% 0%, rgba(130,174,255,.10), transparent 58%);
  -webkit-backdrop-filter: blur(22px) saturate(178%);
  backdrop-filter: blur(22px) saturate(178%);
  border-color: color-mix(in srgb, var(--line-strong) 55%, rgba(255,255,255,.45));
}
.card { box-shadow: 0 12px 36px rgba(42,66,108,.055), inset 0 1px 0 rgba(255,255,255,.72), inset 0 -1px 0 rgba(255,255,255,.16); }
.card::before {
  content:""; position:absolute; inset:0; border-radius:inherit; pointer-events:none;
  background:radial-gradient(ellipse at 8% 0%, rgba(255,255,255,.33), transparent 42%);
  opacity:.72;
}
.card > * { position:relative; z-index:1; }
.modal-card {
  border-color:rgba(255,255,255,.62);
  background-color:color-mix(in srgb, var(--surface) 72%, transparent);
  box-shadow:0 28px 90px rgba(22,39,71,.22), inset 0 1px 0 rgba(255,255,255,.82), inset 0 -1px 0 rgba(255,255,255,.20);
  -webkit-backdrop-filter:blur(32px) saturate(190%);
  backdrop-filter:blur(32px) saturate(190%);
}
.button-primary {
  background-image:linear-gradient(180deg, rgba(255,255,255,.23), transparent 54%);
  border-color:color-mix(in srgb, var(--blue) 42%, white);
  box-shadow:0 5px 16px rgba(61,119,218,.18), inset 0 1px 0 rgba(255,255,255,.36), inset 0 -1px 0 rgba(0,0,0,.07);
}
.button-soft, .icon-button, .avatar-button, .mode-choice, .preset {
  background-image:linear-gradient(145deg, rgba(255,255,255,.42), rgba(255,255,255,.06));
  border-color:color-mix(in srgb, var(--line-strong) 65%, white);
}
.nav-item.active, .mobile-nav-item.active {
  background:linear-gradient(145deg, color-mix(in srgb, var(--blue-soft) 78%, white), color-mix(in srgb, var(--blue-soft) 90%, transparent));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.82), 0 4px 15px rgba(74,124,211,.08);
}
.session-row-actions { display:flex; align-items:center; gap:3px; margin-left:auto; }
.session-row-actions .tiny-icon-button { flex:0 0 auto; }
.session-delete-button { color:color-mix(in srgb, var(--red) 68%, var(--muted)); }
.session-delete-button:hover { color:var(--red); background:color-mix(in srgb, var(--red) 10%, transparent); }
:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .topbar,
:root[data-theme="dark"] .mobile-nav {
  background-image:linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.015) 54%,rgba(130,160,210,.06));
  -webkit-backdrop-filter:blur(30px) saturate(165%);
  backdrop-filter:blur(30px) saturate(165%);
}
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .modal-card,
:root[data-theme="dark"] .subject-manager-row,
:root[data-theme="dark"] .settings-callout,
:root[data-theme="dark"] .cloud-account-box {
  background-image:linear-gradient(145deg,rgba(255,255,255,.085),rgba(255,255,255,.015) 48%,rgba(111,139,190,.045));
  border-color:rgba(218,231,250,.14);
  box-shadow:0 14px 38px rgba(0,0,0,.14),inset 0 1px 0 rgba(255,255,255,.13),inset 0 -1px 0 rgba(255,255,255,.025);
}
:root[data-theme="dark"] .card::before { background:radial-gradient(ellipse at 8% 0%,rgba(255,255,255,.10),transparent 42%); }
@media (prefers-reduced-transparency: reduce) {
  .sidebar,.topbar,.mobile-nav,.card,.modal-card,.subject-manager-row,.settings-callout,.cloud-account-box,.offline-pill,.icon-button,.avatar-button,.toast {
    -webkit-backdrop-filter:none !important; backdrop-filter:none !important;
    background-color:var(--surface) !important; background-image:none !important;
  }
}


/* v1.3.1 typography clarity pass: preserve native platform text rasterization. */
:root {
  text-rendering: auto;
  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC",
    "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  --muted: #687991;
  --muted-2: #8291a7;
}
:root[data-theme="dark"] {
  --muted: #a8b6ca;
  --muted-2: #8798b0;
}

/* Keep the Liquid Glass look, but reduce translucency and blur behind text. */
.sidebar, .topbar, .mobile-nav {
  background-color: color-mix(in srgb, var(--surface) 86%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(155%);
  backdrop-filter: blur(14px) saturate(155%);
}
.card, .modal-card, .subject-manager-row, .settings-callout, .cloud-account-box {
  background-color: color-mix(in srgb, var(--surface) 91%, transparent);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  backdrop-filter: blur(10px) saturate(150%);
}
.modal-card {
  background-color: color-mix(in srgb, var(--surface) 94%, transparent);
  -webkit-backdrop-filter: blur(12px) saturate(155%);
  backdrop-filter: blur(12px) saturate(155%);
}
.modal-backdrop {
  -webkit-backdrop-filter: blur(5px) saturate(115%);
  backdrop-filter: blur(5px) saturate(115%);
}
.subject-manager-row {
  background-color: color-mix(in srgb, var(--surface-2) 91%, transparent);
}
:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .topbar,
:root[data-theme="dark"] .mobile-nav {
  background-color: rgba(20, 29, 43, .88);
  -webkit-backdrop-filter: blur(14px) saturate(145%);
  backdrop-filter: blur(14px) saturate(145%);
}
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .modal-card,
:root[data-theme="dark"] .subject-manager-row,
:root[data-theme="dark"] .settings-callout,
:root[data-theme="dark"] .cloud-account-box {
  background-color: rgba(25, 35, 51, .92);
  -webkit-backdrop-filter: blur(10px) saturate(145%);
  backdrop-filter: blur(10px) saturate(145%);
}

/* Slightly increase the smallest utility labels without changing layout hierarchy. */
.eyebrow { font-size: 10px; }
.nav-desc, .local-note, .offline-pill { font-size: 11px; }
@media (max-width: 700px) {
  .sidebar, .topbar, .mobile-nav,
  .card, .modal-card, .subject-manager-row, .settings-callout, .cloud-account-box {
    -webkit-backdrop-filter: blur(8px) saturate(145%);
    backdrop-filter: blur(8px) saturate(145%);
  }
}
@media (prefers-reduced-transparency: reduce) {
  :root { --muted: #65748b; --muted-2: #7e8da3; }
  :root[data-theme="dark"] { --muted: #a8b6ca; --muted-2: #8798b0; }
}