:root {
  --color-canvas: #f5f6f8;
  --color-sidebar: #f0f1f3;
  --color-surface: #ffffff;
  --color-surface-muted: #f7f7f8;
  --color-border: #e2e4e8;
  --color-border-strong: #cbd0d8;
  --color-text: #24262b;
  --color-text-muted: #686d76;
  --color-accent: #c9584f;
  --color-accent-hover: #ad463f;
  --color-accent-soft: #f8e9e7;
  --color-success: #287a55;
  --color-success-soft: #eaf6ef;
  --color-danger: #a33f3a;
  --color-danger-soft: #fbeceb;
  --color-focus: #2767b1;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --shadow-surface: 0 1px 2px rgba(23, 28, 38, .04);
  --sidebar-width: 236px;
  --content-width: 1120px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { min-width: 320px; background: var(--color-canvas); }
body { min-height: 100vh; margin: 0; color: var(--color-text); background: var(--color-canvas); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 15px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: var(--color-accent-hover); text-underline-offset: 2px; }
a:hover { color: var(--color-accent); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-focus) 34%, transparent); outline-offset: 2px; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { margin: 0; font-size: clamp(1.55rem, 2vw, 1.9rem); line-height: 1.22; letter-spacing: -.025em; }
h2 { margin: 0; font-size: 1.08rem; line-height: 1.35; }
h3 { margin: 0; font-size: 1rem; }

.app-page > main { width: min(calc(100% - var(--sidebar-width)), var(--content-width)); min-height: 100vh; margin-left: var(--sidebar-width); padding: 40px 48px 64px; }
.app-sidebar { position: fixed; z-index: 20; inset: 0 auto 0 0; display: flex; width: var(--sidebar-width); flex-direction: column; padding: 20px 14px 16px; overflow-y: auto; background: var(--color-sidebar); border-right: 1px solid var(--color-border); }
.app-brand { display: inline-flex; align-items: center; gap: 10px; min-height: 40px; color: var(--color-text); font-size: 1.03rem; font-weight: 750; letter-spacing: -.015em; text-decoration: none; }
.app-brand:hover { color: var(--color-text); }
.brand-mark { display: grid; width: 25px; height: 25px; padding: 5px; gap: 2px; border-radius: 8px; background: var(--color-accent); }
.brand-mark span { display: block; height: 2px; border-radius: 99px; background: #fff; transform: rotate(-8deg); }
.brand-mark span:nth-child(2) { width: 75%; }
.brand-mark span:nth-child(3) { width: 50%; }
.sidebar-navigation { margin-top: 24px; }
.nav-group + .nav-group { margin-top: 20px; }
.nav-group__label { margin: 0 10px 6px; color: #8b8f97; font-size: .69rem; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.nav-item { display: flex; min-height: 38px; align-items: center; gap: 11px; padding: 8px 10px; color: #4d5159; border-radius: 8px; font-weight: 540; text-decoration: none; }
.nav-item:hover { color: var(--color-text); background: rgba(255, 255, 255, .66); }
.nav-item a { color: inherit; text-decoration: none; }
.nav-item svg, form[action="/logout"] svg { width: 18px; height: 18px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav-item[data-nav-key="dashboard"] svg { fill: currentColor; stroke: none; }
.nav-item:has(a[aria-current="page"]), .app-page[data-page="dashboard"] .nav-item[data-nav-key="dashboard"], .app-page[data-page="calendar"] .nav-item[data-nav-key="calendar"], .app-page[data-page="timeline"] .nav-item[data-nav-key="timeline"], .app-page[data-page="add-time"] .nav-item[data-nav-key="add-time"], .app-page[data-page="priorities"] .nav-item[data-nav-key="priorities"], .app-page[data-page="condition"] .nav-item[data-nav-key="condition"], .app-page[data-page="weekly"] .nav-item[data-nav-key="weekly"], .app-page[data-page="baseline"] .nav-item[data-nav-key="baseline"], .app-page[data-page="experiments"] .nav-item[data-nav-key="experiments"] { color: var(--color-accent-hover); background: var(--color-accent-soft); font-weight: 650; }
.app-page[data-page="daily-review"] .nav-group-review .nav-group__label { color: var(--color-accent-hover); }
.sidebar-footer { margin-top: auto; padding-top: 24px; }
.app-sidebar form[action="/logout"], .mobile-menu__panel form[action="/logout"] { margin: 0; }
.app-sidebar form[action="/logout"] button, .mobile-menu__panel form[action="/logout"] button { display: flex; width: 100%; min-height: 38px; align-items: center; gap: 11px; padding: 8px 10px; color: #5f636b; background: transparent; border: 0; border-radius: 8px; font: inherit; font-weight: 540; cursor: pointer; }
.app-sidebar form[action="/logout"] button:hover, .mobile-menu__panel form[action="/logout"] button:hover { color: var(--color-text); background: rgba(255, 255, 255, .66); }
.mobile-header { display: none; }

.page-header, .app-page > main > header { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 16px 24px; margin-bottom: 24px; }
.page-header__intro, .page-subtitle, .calendar-introduction, .intro { margin: 6px 0 0; color: var(--color-text-muted); }
.page-header__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.page-label { margin: 0 0 6px; color: var(--color-text-muted); font-size: .72rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }

.card, .form-surface, .app-page > main > form, .auth-card { padding: 20px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-surface); }
.card h2, .card h3 { margin-top: 0; }
.card > h2, .card > h3 { margin-bottom: 14px; }
.card-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; margin-bottom: 16px; }
.card-header h2 { margin-bottom: 0; }
.dashboard, .review, .overview, .report, .cards { display: grid; gap: 16px; margin-top: 24px; }
.dashboard { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dashboard .card:last-child { grid-column: 1 / -1; }
.section-heading { margin: 28px 0 12px; }

.primary-action, .action, .button-primary, .app-page > main button[type="submit"], .auth-page button[type="submit"] { display: inline-flex; width: auto; min-height: 40px; align-items: center; justify-content: center; padding: 8px 14px; color: #fff; background: var(--color-accent); border: 1px solid var(--color-accent); border-radius: var(--radius-sm); font: inherit; font-weight: 650; line-height: 1.2; text-decoration: none; cursor: pointer; }
.primary-action:hover, .action:hover, .app-page > main button[type="submit"]:hover, .auth-page button[type="submit"]:hover { color: #fff; background: var(--color-accent-hover); border-color: var(--color-accent-hover); }
.date-navigation a, .week-navigation a, .button-secondary, .edit-actions a, .back-link { display: inline-flex; min-height: 38px; align-items: center; justify-content: center; padding: 7px 12px; color: #4f545c; background: var(--color-surface); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); font-weight: 600; text-decoration: none; }
.date-navigation a:hover, .week-navigation a:hover, .button-secondary:hover, .edit-actions a:hover, .back-link:hover { color: var(--color-text); background: var(--color-surface-muted); }
.delete button[type="submit"], .cancel-confirmation button[type="submit"] { color: var(--color-danger); background: var(--color-danger-soft); border-color: #efcbc8; }
.delete button[type="submit"]:hover, .cancel-confirmation button[type="submit"]:hover { color: #fff; background: var(--color-danger); border-color: var(--color-danger); }

.app-page > main > form, .auth-card form, .card form { display: grid; gap: 16px; }
.app-page > main > form { max-width: 660px; }
label { color: #383b42; font-weight: 650; }
.app-page label, .auth-page label { display: grid; gap: 6px; }
input, select, textarea, button { font: inherit; }
input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]), select, textarea { width: 100%; min-height: 42px; padding: 9px 11px; color: var(--color-text); background: #fff; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); }
textarea { min-height: 112px; resize: vertical; }
input:hover, select:hover, textarea:hover { border-color: #aeb4bd; }
.help, .hint { margin: 0; color: var(--color-text-muted); font-size: .9rem; font-weight: 400; }
.edit-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.confirmation { grid-template-columns: auto 1fr; align-items: start; font-weight: 400; }
.confirmation input { margin-top: 4px; }
.delete form { display: grid; gap: 14px; }

.error, .form-error, .validation-error, .calendar-error, .success, .empty, .limit, .reminder, .result-note { padding: 12px 14px; border-radius: var(--radius-md); }
.error, .form-error, .validation-error, .calendar-error { color: #883632; background: var(--color-danger-soft); border: 1px solid #efcbc8; }
.success { color: #216646; background: var(--color-success-soft); border: 1px solid #cce8d8; }
.empty, .limit, .reminder, .result-note { color: #5d626b; background: var(--color-surface-muted); border: 1px solid var(--color-border); }
.status, .current-label, .today-label { display: inline-flex; align-items: center; width: fit-content; padding: 3px 8px; color: #5d626b; background: #eceef1; border-radius: 999px; font-size: .82rem; font-weight: 700; }

.summary-grid, .condition, .experiment-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(112px, 1fr)); gap: 10px; margin: 0; }
.summary-grid div, .condition div, .experiment-summary div { padding: 12px; background: var(--color-surface-muted); border: 1px solid #eceef1; border-radius: var(--radius-md); }
.summary-grid dt, .condition dt, .experiment-summary dt { color: var(--color-text-muted); font-size: .83rem; }
.summary-grid dd, .condition dd, .experiment-summary dd { margin: 3px 0 0; font-size: 1.06rem; font-weight: 720; overflow-wrap: anywhere; }
.sample-count { display: block; margin-top: 3px; color: var(--color-text-muted); font-size: .8rem; font-weight: 400; }

.timeline { display: grid; margin: 0; padding: 0; gap: 0; list-style: none; }
.timeline > li { position: relative; padding: 14px 8px 14px 28px; border-bottom: 1px solid var(--color-border); }
.timeline > li:last-child { border-bottom: 0; }
.timeline > li::before { content: ""; position: absolute; top: 20px; left: 8px; width: 8px; height: 8px; background: var(--color-accent); border: 3px solid var(--color-accent-soft); border-radius: 50%; }
.time { color: var(--color-text-muted); font-size: .84rem; font-variant-numeric: tabular-nums; font-weight: 700; }
.title { margin: 3px 0; font-size: 1rem; font-weight: 680; }
.category { margin: 0; color: var(--color-text-muted); font-size: .88rem; }
.linked-priority { margin: 5px 0 0; color: #555a63; font-size: .88rem; }
.actions { margin: 6px 0 0; font-size: .88rem; }

.priorities { display: grid; gap: 10px; padding-left: 24px; }
.app-page[data-page="priorities"] > main > .priorities { padding: 18px 18px 18px 44px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-surface); }
.priority { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.priority p { margin: 0; }
.priority-alignment { display: grid; gap: 8px; margin-top: 10px; padding: 12px; background: var(--color-surface-muted); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.priority-alignment form { display: flex; flex-wrap: wrap; align-items: end; gap: 8px; }
.priority-alignment-status, .priority-linked-time, .reflection-status, .day-state { color: var(--color-text-muted); }

.date-navigation, .week-navigation { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.date-navigation a[aria-current="date"], .week-navigation a[aria-current="date"] { color: var(--color-accent-hover); border-color: #ddb0ac; background: var(--color-accent-soft); }
.review-date, .week-range, .period { color: var(--color-text-muted); }
.category-totals, .alignment-counts, .count-list { display: grid; gap: 0; margin-bottom: 0; }
dl.category-totals div, .alignment-counts div, .count-list div { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--color-border); }
.category-totals dd, .alignment-counts dd, .count-list dd { margin: 0; font-variant-numeric: tabular-nums; }
table.category-totals, .result-table { display: table; width: 100%; border-collapse: collapse; }
table.category-totals th, table.category-totals td, .result-table th, .result-table td { padding: 10px 8px; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
table.category-totals .numeric { text-align: right; font-variant-numeric: tabular-nums; }
.days, .week-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.days li, .week-card { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 12px 14px; background: var(--color-surface-muted); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.week-card h2 { margin: 0; }
.week-dates { margin: 3px 0 0; color: var(--color-text-muted); font-size: .88rem; font-variant-numeric: tabular-nums; }

.period-selector { margin-top: 20px; }
.card .period-form { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; }
.period-field { display: grid; flex: 1 1 190px; gap: 5px; }
.distribution-grid, .condition-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); gap: 16px; }
.distribution-view, .condition-metric, .experiment { min-width: 0; padding: 16px; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.category-bars, .experiment-list, .observation-list { display: grid; gap: 12px; }
.category-bars, .experiment-list { margin: 0; padding: 0; list-style: none; }
.category-bar-label { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; margin-bottom: 5px; }
.category-values, .distribution-context, .condition-coverage, .condition-scale-note, .experiment-meta, .experiment-intro, .readiness-detail, .readiness-note { color: var(--color-text-muted); }
.category-progress { display: block; width: 100%; height: 8px; overflow: hidden; border: 0; border-radius: 99px; background: #e4e6e9; }
.category-progress::-webkit-progress-bar { background: #e4e6e9; border-radius: 99px; }
.category-progress::-webkit-progress-value { background: #747981; border-radius: 99px; }
.category-progress::-moz-progress-bar { background: #747981; border-radius: 99px; }
.top-category { padding-top: 12px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); }
.condition-chart-scroll { max-width: 100%; overflow-x: auto; }
.condition-chart { min-width: 288px; }
.condition-axis, .condition-point { display: grid; grid-template-columns: 64px minmax(112px, 1fr) 88px; align-items: center; gap: 8px; }
.condition-axis { padding: 0 4px 6px; color: var(--color-text-muted); font-size: .75rem; }
.condition-axis-values, .condition-levels { display: grid; grid-template-columns: repeat(5, 1fr); text-align: center; }
.condition-series { display: grid; gap: 5px; margin: 0; padding: 0; list-style: none; }
.condition-point { min-height: 29px; padding: 5px 4px; border-top: 1px solid #eef0f2; }
.condition-level { color: #c8ccd2; }
.condition-level-selected { color: var(--color-accent); font-size: 1.1rem; font-weight: 700; }
.condition-value { text-align: right; }
.condition-missing-marker { color: #959aa3; text-align: center; }

.cards dl, .card > dl { display: grid; grid-template-columns: minmax(130px, auto) 1fr; gap: 10px 16px; }
.cards dt, .card > dl dt { color: var(--color-text-muted); font-weight: 650; }
.cards dd, .card > dl dd { margin: 0; overflow-wrap: anywhere; }
.description, .hypothesis { white-space: pre-wrap; }
.check-in-options { display: flex; flex-wrap: wrap; gap: 16px; margin: 0; padding: 0; border: 0; }
.check-in-options label { display: flex; grid-template-columns: none; align-items: center; gap: 7px; }
.lifecycle-action { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.cancel-confirmation summary { color: var(--color-danger); font-weight: 650; cursor: pointer; }
.delete { max-width: 660px; margin-top: 32px; padding: 20px; background: #fffafa; border: 1px solid #efd7d5; border-radius: var(--radius-lg); }

.auth-page { display: flex; min-height: 100vh; flex-direction: column; padding: 0 20px 48px; background: linear-gradient(145deg, #f6f3f2 0%, var(--color-canvas) 48%, #f3f5f7 100%); }
.public-navigation { display: flex; width: min(100%, 1040px); min-height: 72px; align-items: center; justify-content: space-between; gap: 16px; margin: 0 auto; }
.public-navigation__links { display: flex; align-items: center; gap: 18px; }
.public-navigation__links a { color: #555a63; font-weight: 600; text-decoration: none; }
.auth-page > main { width: min(100%, 430px); margin: auto; }
.auth-card { padding: 28px; }
.auth-card h1 { margin-bottom: 8px; }
.auth-intro { margin: 0 0 22px; color: var(--color-text-muted); }

@media (max-width: 840px) {
  .app-sidebar { display: none; }
  .mobile-header { position: sticky; z-index: 30; top: 0; display: flex; min-height: 62px; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 18px; background: rgba(245, 246, 248, .96); border-bottom: 1px solid var(--color-border); backdrop-filter: blur(10px); }
  .mobile-menu { position: relative; }
  .mobile-menu > summary { display: inline-flex; min-height: 40px; align-items: center; gap: 7px; padding: 8px 11px; color: #4d5159; background: #fff; border: 1px solid var(--color-border-strong); border-radius: 8px; font-weight: 650; list-style: none; cursor: pointer; }
  .mobile-menu > summary::-webkit-details-marker { display: none; }
  .mobile-menu > summary svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
  .mobile-menu__panel { position: fixed; z-index: 40; top: 62px; right: 0; width: min(88vw, 310px); max-height: calc(100vh - 62px); padding: 16px; overflow-y: auto; background: var(--color-surface); border-left: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); border-radius: 0 0 0 12px; box-shadow: -8px 14px 28px rgba(27, 31, 39, .12); }
  .mobile-menu__panel form[action="/logout"] { margin-top: 20px; padding-top: 12px; border-top: 1px solid var(--color-border); }
  .app-page > main { width: 100%; min-height: auto; margin-left: 0; padding: 28px 24px 52px; }
}

@media (max-width: 620px) {
  .app-page > main { padding: 24px 16px 44px; }
  .dashboard { grid-template-columns: 1fr; }
  .dashboard .card:last-child { grid-column: auto; }
  .page-header, .app-page > main > header { align-items: stretch; }
  .page-header__actions { width: 100%; }
  .page-header__actions > * { flex: 1 1 auto; }
  .card, .form-surface, .app-page > main > form, .auth-card { padding: 16px; }
  .cards dl, .card > dl { grid-template-columns: 1fr; gap: 3px; }
  .cards dd, .card > dl dd { margin-bottom: 9px; }
  .result-table { display: block; overflow-x: auto; white-space: nowrap; }
  .public-navigation__links { gap: 12px; font-size: .9rem; }
  .auth-page { padding-inline: 14px; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }