:root {
    color-scheme: light;

    /* ── Breakpoints (canonical) ─────────────────────────
       --ha-bp-sm:  480px   — small phone
       --ha-bp-md:  768px   — tablet
       --ha-bp-lg:  960px   — desktop / sidebar collapse
       --ha-bp-xl: 1200px   — wide desktop
       NOTE: CSS media queries cannot use var(), so these
       tokens are for documentation and JS interop only.
    ──────────────────────────────────────────────────── */

    /* ── Core ───────────────────────────────────────────── */
    --ha-bg: #f7fcf8;
    --ha-panel: #ffffff;
    --ha-panel-alt: #eef6f1;
    --ha-border: #d7e6db;
    --ha-text: #1f2328;
    --ha-text-muted: #4a5568;
    --ha-accent: #15795a;
    --ha-accent-soft: #daf2e5;
    --ha-accent-contrast: #ffffff;
    --ha-success: #107c10;
    --ha-warning: #8a6d1d;
    --ha-danger: #b42318;
    --ha-shadow: 0 16px 40px rgba(21, 64, 46, 0.09);
    --ha-content-max-width: 1180px;
    --ha-bp-sm: 480px;
    --ha-bp-md: 768px;
    --ha-bp-lg: 960px;
    --ha-bp-xl: 1200px;

    /* ── Surface variants ──────────────────────────────── */
    --ha-surface-subtle: #f4faf6;
    --ha-surface-hover: #edf5f0;
    --ha-surface-inset: #eaf3ed;
    --ha-surface-contrast: #163126;

    /* ── Text variants ─────────────────────────────────── */
    --ha-text-placeholder: #94a3b8;

    /* ── Accent expanded ───────────────────────────────── */
    --ha-accent-emphasis: #0f5e45;
    --ha-accent-hover: #0f5e45;
    --ha-accent-muted: #41a77f;
    --ha-accent-bg: #e3f7ed;

    /* ── Success expanded ──────────────────────────────── */
    --ha-success-bg: #dcfce7;
    --ha-success-border: #b0dfc8;
    --ha-success-emphasis: #1a7f37;

    /* ── Warning expanded ──────────────────────────────── */
    --ha-warning-bg: #fff8e1;
    --ha-warning-border: #ffe082;
    --ha-warning-emphasis: #9a6700;

    /* ── Danger expanded ───────────────────────────────── */
    --ha-danger-bg: #fde8e8;
    --ha-danger-border: #f5a0a0;

    /* ── Gold / PR / Achievement ────────────────────────── */
    --ha-gold: #d4af37;
    --ha-gold-bg: #fffdf0;
    --ha-gold-text: #5a3e00;
    --ha-gold-highlight: #fff8c5;

    /* ── Superset grouping ─────────────────────────────── */
    --ha-superset: #7c3aed;
    --ha-superset-light: #a855f7;
    --ha-superset-bg: #faf5ff;
    --ha-superset-border: #ede9fe;

    /* ── Badge / Tag ───────────────────────────────────── */
    --ha-badge-bg: #e6efe9;
    --ha-badge-system-bg: #fef3c7;
    --ha-badge-system-text: #92400e;
    --ha-badge-info-bg: #e7f4ed;
    --ha-badge-info-text: #0f5e45;

    /* ── Plate weight colors ───────────────────────────── */
    --ha-plate-red-bg: #ffe0e0;
    --ha-plate-red-text: #a31515;
    --ha-plate-blue-bg: #dbeafe;
    --ha-plate-blue-text: #1d4ed8;
    --ha-plate-yellow-bg: #fef9c3;
    --ha-plate-yellow-text: #854d0e;
    --ha-plate-green-bg: #dcfce7;
    --ha-plate-green-text: #166534;
    --ha-plate-white-bg: #f3f4f6;
    --ha-plate-white-text: #374151;
    --ha-plate-white-border: #d1d5db;
    --ha-plate-gray-bg: #e5e7eb;
    --ha-plate-gray-text: #6b7280;

    /* ── Success soft (positive action backgrounds) ─── */
    --ha-success-soft: #eef7ee;

    /* ── Border radius tokens ────────────────────────── */
    --ha-radius-sm: 8px;
    --ha-radius-md: 12px;
    --ha-radius-lg: 16px;
    --ha-radius-full: 999px;

    /* ── Motion tokens ───────────────────────────────── */
    --ha-transition-fast: 0.15s ease;
    --ha-transition-medium: 0.25s ease;
    --ha-transition-slow: 0.4s ease;
    --ha-easing-default: cubic-bezier(0.4, 0, 0.2, 1);

    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background: linear-gradient(180deg, #f7fcf8 0%, #eef6f1 55%, #f5fbf8 100%);
    color: var(--ha-text);
}

body {
    line-height: 1.5;
}

a {
    color: var(--ha-accent);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 0.75rem;
    color: var(--ha-text);
}

p {
    margin: 0 0 1rem;
}

ul,
ol {
    margin: 0;
    padding-left: 1.25rem;
}

#app {
    min-height: 100vh; /* fallback for older browsers */
    min-height: 100dvh;
}

.app-shell {
    display: flex;
    min-height: 100vh; /* fallback for older browsers */
    min-height: 100dvh;
}

.app-shell__sidebar {
    width: min(320px, 100%);
    background: linear-gradient(180deg, #eef8f3 0%, #f7fcf9 100%);
    border-right: 1px solid var(--ha-border);
}

.app-shell__main {
    flex: 1;
    min-width: 0;
}

.app-shell__header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    gap: 1.25rem;
    align-items: center;
    max-width: var(--ha-content-max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid color-mix(in srgb, var(--ha-border) 85%, transparent);
    box-sizing: border-box;
}

.app-shell__header-primary,
.app-shell__header-actions {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    flex-wrap: wrap;
}

.app-shell__content {
    display: grid;
    gap: 1.25rem;
    max-width: var(--ha-content-max-width);
    margin: 0 auto;
    padding: 1.75rem 2rem 2.5rem;
    box-sizing: border-box;
}

.brand-link {
    color: var(--ha-text);
    font-size: 1.125rem;
    font-weight: 700;
    text-decoration: none;
}

.brand-link__content,
.shell-link,
.shell-button-content,
.nav-shell__link-content,
.page-card__heading,
.cta-link,
.secondary-link {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
}

.brand-link__content {
    gap: 0.75rem;
}

.shell-link,
.secondary-link,
.cta-link {
    font-weight: 600;
    text-decoration: none;
}

.shell-link {
    padding: 0.55rem 0.8rem;
    border-radius: 999px;
    color: var(--ha-text);
}

.shell-link:hover {
    background: color-mix(in srgb, var(--ha-accent-soft) 60%, white);
}

.shell-user,
.debug-api-label,
.page-kicker,
.page-intro,
.section-meta,
.muted-text,
.empty-state {
    color: var(--ha-text-muted);
}

/* ── Utility classes ─────────────────────────────────── */
.card--overflow-visible { overflow: visible; }
.btn--danger { color: var(--ha-danger); }
.btn--danger-fill { background: var(--ha-danger); border-color: var(--ha-danger); color: var(--ha-panel); }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 0.75rem; }
.mb-md { margin-bottom: 1.5rem; }

/* ── Empty state card ────────────────────────────────── */
.empty-state-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2.5rem 1.5rem;
    text-align: center;
    animation: empty-state-enter 0.5s ease-out;
}

@keyframes empty-state-enter {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.empty-state-card__visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-card__emoji {
    font-size: 2.5rem;
    line-height: 1;
}

.empty-state-card__icon {
    color: var(--ha-text-muted);
    opacity: 0.6;
}

.empty-state-card__message {
    margin: 0;
    color: var(--ha-text-muted);
    font-size: 1rem;
    line-height: 1.5;
    max-width: 340px;
}

.empty-state-card__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ha-accent-contrast);
    background: var(--ha-accent);
    border: none;
    border-radius: var(--ha-radius-sm, 8px);
    cursor: pointer;
    text-decoration: none;
    transition: background var(--ha-transition-fast, 0.15s ease), transform var(--ha-transition-fast, 0.15s ease);
}

.empty-state-card__cta:hover {
    background: var(--ha-accent-hover);
    transform: scale(1.02);
}

.empty-state-card__cta:active {
    transform: scale(0.98);
}

/* ── Page hero last-updated caption ─────────────────── */
.page-hero__last-updated {
    font-size: 0.8rem;
    align-self: center;
}

.pill--small {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
}

.page-hero {
    display: flex;
    justify-content: space-between;
    gap: 1.25rem;
    align-items: start;
}

.page-kicker {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-intro {
    max-width: 62rem;
}

.page-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.page-card,
.surface-card,
.status-alert {
    background: var(--ha-panel);
    border: 1px solid var(--ha-border);
    border-radius: var(--ha-radius-md);
    box-shadow: var(--ha-shadow);
}

.page-card {
    padding: 1.4rem;
    transition: transform var(--ha-transition-fast), box-shadow var(--ha-transition-fast);
}

.page-card:hover {
    transform: scale(1.01);
    box-shadow: 0 20px 48px rgba(21, 64, 46, 0.13);
}

.page-card:active {
    transform: scale(0.99);
}

/* ── Global button focus-visible ─────────────────────────────── */
fluent-button:focus-visible,
button:focus-visible,
.cta-link:focus-visible,
.secondary-link:focus-visible {
    outline: 2px solid var(--ha-accent);
    outline-offset: 2px;
}

.card-actions,
.button-row,
.legend-row,
.inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    align-items: center;
}

/* Plan generation loading indicator */
.generating-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2rem 1rem;
    text-align: center;
}

.generating-indicator__text {
    font-size: 1rem;
    color: var(--ha-text-muted, #6c757d);
    margin: 0;
    animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.page-card__heading {
    margin-bottom: 0.75rem;
}

.page-card__heading h2 {
    margin-bottom: 0;
}

.page-card__icon {
    color: var(--ha-accent);
}

.form-layout {
    display: grid;
    gap: 1rem;
}

.form-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.field-span-full {
    grid-column: 1 / -1;
}

.choice-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.choice-list {
    display: grid;
    gap: 0.625rem;
}

.choice-item {
    display: flex;
    gap: 0.625rem;
    align-items: start;
    padding: 0.875rem 1rem;
    background: var(--ha-panel-alt);
    border: 1px solid var(--ha-border);
    border-radius: 16px;
}

.choice-item input[type="checkbox"] {
    margin-top: 0.2rem;
}

.section-stack {
    display: grid;
    gap: 1rem;
}

.metric-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.metric-card {
    padding: 1rem;
    border-radius: 16px;
    background: var(--ha-panel-alt);
    border: 1px solid var(--ha-border);
}

.metric-card__label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--ha-text-muted);
    font-size: 0.875rem;
}

.metric-card__value {
    font-size: 1.25rem;
    font-weight: 700;
}

.status-alert {
    padding: 1rem 1.125rem;
}

.status-alert__content {
    display: grid;
    gap: 0.35rem;
}

.status-alert__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.status-alert__title {
    font-weight: 700;
}

.status-alert__dismiss {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    color: var(--ha-text-muted);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}

.status-alert__dismiss:hover {
    color: var(--ha-text);
    background: rgba(0, 0, 0, 0.06);
}

.status-alert__note {
    margin-bottom: 0;
    color: var(--ha-text-muted);
    font-style: italic;
}

.status-alert--info {
    background: var(--ha-badge-info-bg);
    border-color: color-mix(in srgb, var(--ha-accent) 22%, var(--ha-border));
}

.status-alert--warning {
    background: var(--ha-warning-bg);
    border-color: var(--ha-warning-border);
}

.status-alert--danger {
    background: var(--ha-danger-bg);
    border-color: var(--ha-danger-border);
}

.tab-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--ha-panel);
}

.data-table th,
.data-table td {
    padding: 0.85rem 0.75rem;
    border-bottom: 1px solid var(--ha-border);
    vertical-align: top;
    text-align: left;
}

.data-table thead th {
    background: var(--ha-panel-alt);
    color: var(--ha-text-muted);
    font-size: 0.875rem;
    font-weight: 700;
}

.data-table tbody tr:hover {
    background: color-mix(in srgb, var(--ha-accent-soft) 24%, var(--ha-panel));
}

.calendar-grid {
    overflow-x: auto;
}

.calendar-day {
    min-width: 120px;
}

/* ── View toggle ─────────────────────────────── */
.view-toggle {
    display: inline-flex;
    border: 1px solid var(--ha-border);
    border-radius: var(--ha-radius-sm);
    overflow: hidden;
}

.view-toggle__btn {
    padding: 0.3rem 0.75rem;
    border: none;
    background: var(--ha-surface-subtle);
    color: var(--ha-text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.view-toggle__btn--active {
    background: var(--ha-accent);
    color: var(--ha-accent-contrast);
}

.view-toggle__btn:not(.view-toggle__btn--active):hover {
    background: var(--ha-surface-hover);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ha-radius-full);
    font-size: 0.825rem;
    font-weight: 700;
}

.pill--accent {
    color: var(--ha-accent-emphasis);
    background: var(--ha-accent-bg);
}

.pill--success {
    color: var(--ha-success-emphasis);
    background: var(--ha-success-bg);
}

.pill--warning {
    color: var(--ha-warning-emphasis);
    background: var(--ha-warning-bg);
}

.pill--neutral {
    color: var(--ha-text-muted);
    background: var(--ha-badge-bg);
}

.nav-shell {
    display: grid;
    gap: 1rem;
    padding: 1.5rem 1.25rem;
}

.nav-shell__header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
}

.nav-shell__eyebrow {
    margin-bottom: 0.3rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-shell__title {
    margin: 0;
    font-size: 1.25rem;
}

.nav-shell__links {
    display: grid;
    gap: 0.15rem;
}

.nav-shell__link {
    display: block;
    padding: 0.65rem 0.75rem;
    border-radius: var(--ha-radius-sm);
    color: var(--ha-text);
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    transition: background var(--ha-transition-fast), color var(--ha-transition-fast);
}

.nav-shell__link.active {
    background: var(--ha-accent-soft);
    color: var(--ha-accent);
    font-weight: 600;
}

.nav-shell__link:hover {
    background: var(--ha-surface-hover);
}

.nav-shell__toggle {
    display: none;
}

.cta-link,
.secondary-link {
    padding: 0.7rem 1rem;
    border-radius: var(--ha-radius-sm);
}

.cta-link {
    background: color-mix(in srgb, var(--ha-accent-bg) 92%, var(--ha-panel));
    border: 1px solid color-mix(in srgb, var(--ha-accent) 22%, var(--ha-border));
    color: var(--ha-accent-emphasis);
}

.cta-link:hover {
    background: color-mix(in srgb, var(--ha-accent-bg) 76%, var(--ha-panel));
}

.secondary-link {
    background: var(--ha-panel-alt);
    border: 1px solid var(--ha-border);
    color: var(--ha-text);
}

.secondary-link:hover {
    background: var(--ha-surface-hover);
}

.validation-message {
    color: var(--ha-danger);
    font-size: 0.875rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #7ab97a;
}

.invalid {
    outline: 1px solid #d35f55;
}

#blazor-error-ui {
    color-scheme: light only;
    background: #fff4d6;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.75rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: color-mix(in srgb, var(--ha-accent-soft) 45%, var(--ha-border));
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--ha-accent);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: 700;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}

code {
    color: var(--ha-accent-emphasis);
}

/* ── Consistent date input for pages using native <input type="date"> ── */
.fluent-date-input {
    height: 32px;
    padding: 0 0.75rem;
    border: 1px solid var(--neutral-stroke-rest, var(--ha-border));
    border-radius: 4px;
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--neutral-fill-input-rest, var(--ha-panel));
    color: var(--neutral-foreground-rest, var(--ha-text));
    min-width: 140px;
    box-sizing: border-box;
}

.fluent-date-input:focus {
    outline: none;
    border-color: var(--ha-accent);
    box-shadow: 0 0 0 2px rgba(21, 121, 90, 0.2);
}

.field-label {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ha-text);
}

/* ── Skip navigation link ────────────────────────────── */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0.5rem;
    z-index: 200;
    padding: 0.5rem 1rem;
    background: var(--ha-accent);
    color: #ffffff;
    font-weight: 700;
    border-radius: 0 0 8px 8px;
    text-decoration: none;
    transition: top 0.1s;
}

.skip-link:focus {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 9999;
    padding: 0.75rem 1.5rem;
    background: var(--ha-accent-emphasis);
    color: #ffffff;
    font-size: 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ── Mobile nav overlay backdrop ─────────────────────── */
.nav-overlay {
    display: none;
}

/* ── Dark theme (explicit class) ──────────────────────── */
/* NOTE: Token values are intentionally repeated in the
   @media (prefers-color-scheme: dark) fallback below.
   Both blocks must stay in sync when adding new tokens. */
.dark-theme {
    color-scheme: dark;

    /* Core */
    --ha-bg: #0f1512;
    --ha-panel: #151d19;
    --ha-panel-alt: #1c2420;
    --ha-border: #2d3933;
    --ha-text: #e6ede8;
    --ha-text-muted: #94a39b;
    --ha-accent: #74dfaf;
    --ha-accent-hover: #95ebc2;
    --ha-accent-soft: #12362a;
    --ha-accent-contrast: #08110d;
    --ha-success: #3fb950;
    --ha-warning: #d29922;
    --ha-danger: #f85149;
    --ha-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
    --ha-input-bg: #0f1512;
    --ha-input-border: #2d3933;

    /* Surface variants */
    --ha-surface-subtle: #151d19;
    --ha-surface-hover: #1c2420;
    --ha-surface-inset: #0f1512;
    --ha-surface-contrast: #08110d;

    /* Text variants */
    --ha-text-placeholder: #4f5b54;

    /* Accent expanded */
    --ha-accent-emphasis: #74dfaf;
    --ha-accent-muted: #95ebc2;
    --ha-accent-bg: #12362a;

    /* Success expanded */
    --ha-success-bg: #0f2d16;
    --ha-success-border: #1a3d24;
    --ha-success-emphasis: #3fb950;

    /* Warning expanded */
    --ha-warning-bg: #2d2300;
    --ha-warning-border: #5c4a00;
    --ha-warning-emphasis: #d29922;

    /* Danger expanded */
    --ha-danger-bg: #2d0f0e;
    --ha-danger-border: #5c1f1d;

    /* Gold / PR / Achievement */
    --ha-gold: #d4a72c;
    --ha-gold-bg: #2d2300;
    --ha-gold-text: #d4a72c;
    --ha-gold-highlight: #332d00;

    /* Superset grouping */
    --ha-superset: #a78bfa;
    --ha-superset-light: #c4b5fd;
    --ha-superset-bg: #2d1b4e;
    --ha-superset-border: #3d2b5e;

    /* Badge / Tag */
    --ha-badge-bg: #202823;
    --ha-badge-system-bg: #2d2300;
    --ha-badge-system-text: #d29922;
    --ha-badge-info-bg: #12362a;
    --ha-badge-info-text: #95ebc2;

    /* Plate weight colors */
    --ha-plate-red-bg: #3d1515;
    --ha-plate-red-text: #f5a0a0;
    --ha-plate-blue-bg: #1f3a5f;
    --ha-plate-blue-text: #58a6ff;
    --ha-plate-yellow-bg: #332d00;
    --ha-plate-yellow-text: #d29922;
    --ha-plate-green-bg: #0f2d16;
    --ha-plate-green-text: #3fb950;
    --ha-plate-white-bg: #21262d;
    --ha-plate-white-text: #c9d1d9;
    --ha-plate-white-border: #30363d;
    --ha-plate-gray-bg: #30363d;
    --ha-plate-gray-text: #8b949e;
}

.dark-theme body,
.dark-theme {
    background: var(--ha-bg);
}

.dark-theme .app-shell__sidebar {
    background: linear-gradient(180deg, #0d1512 0%, #141d19 100%);
}

.dark-theme .app-shell__header {
    background: rgba(22, 27, 34, 0.92);
    border-bottom-color: var(--ha-border);
}

.dark-theme .data-table thead th {
    background: var(--ha-panel-alt);
}

.dark-theme .data-table tbody tr:hover {
    background: color-mix(in srgb, var(--ha-accent-soft) 24%, var(--ha-panel));
}

.dark-theme .shell-link:hover,
.dark-theme .nav-shell__link:hover {
    background: var(--ha-surface-hover);
}

.dark-theme .nav-shell__link.active {
    background: var(--ha-accent-soft);
    color: var(--ha-accent);
}

.dark-theme .cta-link {
    background: color-mix(in srgb, var(--ha-accent-bg) 92%, var(--ha-panel));
    color: var(--ha-accent-emphasis);
}

.dark-theme .cta-link:hover {
    background: color-mix(in srgb, var(--ha-accent-bg) 76%, var(--ha-panel));
}

.dark-theme .secondary-link {
    background: var(--ha-panel-alt);
    color: var(--ha-text);
}

.dark-theme .secondary-link:hover {
    background: var(--ha-surface-hover);
}

.dark-theme .view-toggle__btn {
    background: var(--ha-surface-subtle);
    color: var(--ha-text-muted);
    border-color: var(--ha-border);
}

.dark-theme .view-toggle__btn--active {
    background: var(--ha-accent);
    color: var(--ha-accent-contrast);
}

.dark-theme .plate-popover {
    background: var(--ha-panel);
    border-color: var(--ha-border);
}

.dark-theme .status-alert--info {
    background: var(--ha-badge-info-bg);
    border-color: color-mix(in srgb, var(--ha-accent) 22%, var(--ha-border));
}

.dark-theme .status-alert--warning {
    background: var(--ha-warning-bg);
    border-color: var(--ha-warning-border);
}

.dark-theme .status-alert--danger {
    background: var(--ha-danger-bg);
    border-color: var(--ha-danger-border);
}

.dark-theme .pill--accent {
    color: var(--ha-accent-emphasis);
    background: var(--ha-accent-bg);
}

.dark-theme .pill--success {
    color: var(--ha-success-emphasis);
    background: var(--ha-success-bg);
}

.dark-theme .pill--warning {
    color: var(--ha-warning-emphasis);
    background: var(--ha-warning-bg);
}

.dark-theme .pill--neutral {
    color: var(--ha-text-muted);
    background: var(--ha-badge-bg);
}

.dark-theme code {
    color: var(--ha-accent-muted);
}

.dark-theme .valid.modified:not([type=checkbox]) {
    outline-color: #3fb950;
}

.dark-theme .invalid {
    outline-color: #f85149;
}

.dark-theme .fluent-date-input {
    background: var(--ha-input-bg);
    color: var(--ha-text);
    border-color: var(--ha-input-border);
}

/* ── Dark theme (system preference fallback) ─────────── */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;

        /* Core */
        --ha-bg: #0f1512;
        --ha-panel: #151d19;
        --ha-panel-alt: #1c2420;
        --ha-border: #2d3933;
        --ha-text: #e6ede8;
        --ha-text-muted: #94a39b;
        --ha-accent: #74dfaf;
        --ha-accent-hover: #95ebc2;
        --ha-accent-soft: #12362a;
        --ha-accent-contrast: #08110d;
        --ha-success: #3fb950;
        --ha-warning: #d29922;
        --ha-danger: #f85149;
        --ha-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        --ha-input-bg: #0f1512;
        --ha-input-border: #2d3933;

        /* Surface variants */
        --ha-surface-subtle: #151d19;
        --ha-surface-hover: #1c2420;
        --ha-surface-inset: #0f1512;
        --ha-surface-contrast: #08110d;

        /* Text variants */
        --ha-text-placeholder: #4f5b54;

        /* Accent expanded */
        --ha-accent-emphasis: #74dfaf;
        --ha-accent-muted: #95ebc2;
        --ha-accent-bg: #12362a;

        /* Success expanded */
        --ha-success-bg: #0f2d16;
        --ha-success-border: #1a3d24;
        --ha-success-emphasis: #3fb950;

        /* Warning expanded */
        --ha-warning-bg: #2d2300;
        --ha-warning-border: #5c4a00;
        --ha-warning-emphasis: #d29922;

        /* Danger expanded */
        --ha-danger-bg: #2d0f0e;
        --ha-danger-border: #5c1f1d;

        /* Gold / PR / Achievement */
        --ha-gold: #d4a72c;
        --ha-gold-bg: #2d2300;
        --ha-gold-text: #d4a72c;
        --ha-gold-highlight: #332d00;

        /* Superset grouping */
        --ha-superset: #a78bfa;
        --ha-superset-light: #c4b5fd;
        --ha-superset-bg: #2d1b4e;
        --ha-superset-border: #3d2b5e;

        /* Badge / Tag */
        --ha-badge-bg: #202823;
        --ha-badge-system-bg: #2d2300;
        --ha-badge-system-text: #d29922;
        --ha-badge-info-bg: #12362a;
        --ha-badge-info-text: #95ebc2;

        /* Plate weight colors */
        --ha-plate-red-bg: #3d1515;
        --ha-plate-red-text: #f5a0a0;
        --ha-plate-blue-bg: #1f3a5f;
        --ha-plate-blue-text: #58a6ff;
        --ha-plate-yellow-bg: #332d00;
        --ha-plate-yellow-text: #d29922;
        --ha-plate-green-bg: #0f2d16;
        --ha-plate-green-text: #3fb950;
        --ha-plate-white-bg: #21262d;
        --ha-plate-white-text: #c9d1d9;
        --ha-plate-white-border: #30363d;
        --ha-plate-gray-bg: #30363d;
        --ha-plate-gray-text: #8b949e;
    }
}

@media (max-width: 960px) {
    .app-shell {
        flex-direction: column;
    }

    .app-shell__sidebar {
        width: 100%;
        border-right: 0;
        border-bottom: 0;
        position: relative;
        z-index: 50;
        overflow: visible;
    }

    .nav-shell__toggle {
        display: inline-flex;
    }

    .nav-shell__links--collapsed {
        display: none;
    }

    /* When menu is open, render nav links as a fixed dropdown panel */
    .nav-shell__links:not(.nav-shell__links--collapsed) {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 100;
        background: var(--ha-panel, #ffffff);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 4.5rem 1.25rem 2rem;
    }

    /* Backdrop overlay when mobile nav is open */
    .nav-overlay--visible {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.45);
        z-index: 90;
        cursor: pointer;
    }

    /* Keep the header/toggle above the nav panel */
    .nav-shell__header {
        position: relative;
        z-index: 110;
    }

    /* Hide user email on tablets to save header space */
    .shell-user {
        display: none;
    }
}

/* ── Tablet breakpoint (768px) ───────────────────────────────── */
@media (max-width: 768px) {
    .app-shell__content {
        gap: 1rem;
        padding: 1.1rem 1rem calc(6.5rem + env(safe-area-inset-bottom, 0px));
    }

    .app-shell__header {
        padding: 0.7rem 1rem;
    }

    .app-shell__sidebar {
        width: 100%;
        height: auto;
        min-height: auto;
        overflow: visible;
    }

    /* Stack page hero on tablets */
    .page-hero {
        flex-direction: column;
        align-items: stretch;
    }

    /* Ensure grid columns don't overflow on smaller tablets */
    .page-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .form-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    /* Minimum touch targets for interactive elements */
    .pill,
    .view-toggle,
    .tab-row > * {
        min-height: 2.5rem;
        display: inline-flex;
        align-items: center;
    }

    fluent-button,
    button:not(.status-alert__dismiss),
    .btn,
    [role="button"] {
        min-height: 44px;
        min-width: 44px;
    }

    fluent-button::part(control) {
        min-height: 44px;
        min-width: 44px;
    }

    /* Prevent iOS Safari auto-zoom on input focus */
    input,
    select,
    textarea,
    .strength-text-input,
    .strength-input,
    .session-notes-input,
    .chat-input,
    fluent-text-area::part(control),
    fluent-text-field::part(control),
    fluent-number-field::part(control),
    fluent-select::part(control) {
        font-size: 16px !important;
    }

    .fluent-date-input {
        height: 44px;
        font-size: 16px;
    }
}

/* ── Small phone breakpoint (480px) ──────────────────────────── */
@media (max-width: 480px) {
    .app-shell__header,
    .app-shell__content,
    .nav-shell {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .app-shell__header {
        align-items: start;
        gap: 0.75rem;
    }

    .app-shell__header-primary,
    .app-shell__header-actions,
    .button-row,
    .card-actions {
        flex-direction: column;
        align-items: stretch;
    }

    /* Compact card padding on narrow screens */
    .page-card {
        padding: 0.85rem;
    }

    /* Minimum touch target height on hero action buttons */
    .page-hero__actions fluent-button,
    .page-hero__actions button {
        min-height: 48px;
    }

    /* Tighter data tables on mobile */
    .data-table th,
    .data-table td {
        padding: 0.55rem 0.45rem;
        font-size: 0.82rem;
    }

    .data-table thead th {
        font-size: 0.78rem;
    }

    /* Bottom-sheet modal pattern for FluentDialog on phones */
    fluent-dialog::part(dialog) {
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 1rem 1rem 0 0 !important;
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        margin: 0 !important;
    }

    h1 { font-size: 1.35rem; }
    h2 { font-size: 1.15rem; }
    h3 { font-size: 1rem; }

    .page-kicker {
        font-size: 0.75rem;
    }

    .page-intro {
        font-size: 0.88rem;
    }

    .metric-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .page-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .choice-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Horizontal scroll affordance for tables ─────────────────── */
.table-scroll,
.calendar-grid {
    position: relative;
    -webkit-overflow-scrolling: touch;
}

.table-scroll::after,
.calendar-grid::after {
    content: '';
    position: sticky;
    right: 0;
    top: 0;
    bottom: 0;
    width: 2rem;
    pointer-events: none;
    background: linear-gradient(90deg, transparent, var(--ha-panel));
    flex-shrink: 0;
}

/* ── Safe area insets for notched phones ──────────────────────── */
@supports (padding: env(safe-area-inset-bottom)) {
    .app-shell__content {
        padding-bottom: calc(2.5rem + env(safe-area-inset-bottom));
    }

    .nav-shell {
        padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
    }
}

/* ── Plan generator shared ────────────────────────────────────── */
.plan-gen-actions {
    margin-bottom: 0.5rem;
}

.plan-gen-draft-banner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    background: var(--ha-warning-bg, rgba(210, 153, 34, 0.1));
    border: 1px solid var(--ha-warning-border, rgba(210, 153, 34, 0.3));
    color: var(--ha-warning, #d29922);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.plan-gen-draft-banner__icon {
    font-size: 1.1rem;
}

.plan-gen-rationale {
    display: grid;
    gap: 0.6rem;
}

.plan-gen-rationale p {
    margin: 0;
    line-height: 1.6;
    color: var(--ha-text-muted, #4a5568);
}

/* ── Focus-visible for keyboard navigation ───────────────────── */
:focus-visible {
    outline: 2px solid var(--ha-accent);
    outline-offset: 2px;
}

/* ── Screen-reader only utility ──────────────────────────────── */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ── Home hero (personalized greeting) ───────────────────────── */
.home-hero {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 2rem 2.25rem;
    background: linear-gradient(135deg, var(--ha-panel) 0%, var(--ha-panel-alt) 100%);
    border: 1px solid var(--ha-border);
    border-radius: var(--ha-radius-lg);
    margin-bottom: 1.5rem;
}

.home-hero__greeting {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ha-text);
    margin: 0;
    line-height: 1.3;
}

.home-hero__summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.05rem;
    color: var(--ha-text-muted);
}

.home-hero__streak {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ha-warning-emphasis, #9a6700);
    background: var(--ha-warning-bg, #fff8e1);
    padding: 0.25rem 0.75rem;
    border-radius: var(--ha-radius-full);
}

.home-hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    background: var(--ha-success);
    border: none;
    border-radius: var(--ha-radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--ha-transition-fast), transform var(--ha-transition-fast);
    align-self: flex-start;
}

.home-hero__cta:hover {
    background: var(--ha-success-emphasis, #1a7f37);
    transform: scale(1.02);
}

.home-hero__cta:active {
    transform: scale(0.98);
}

.home-hero__rest {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.05rem;
    color: var(--ha-text-muted);
}

/* ── Dark theme overrides for home hero ──────────────────────── */
.dark-theme .home-hero {
    background: linear-gradient(135deg, var(--ha-panel) 0%, #1c2128 100%);
}

.dark-theme .home-hero__cta {
    background: #238636;
}

.dark-theme .home-hero__cta:hover {
    background: #2ea043;
}

.dark-theme .home-hero__streak {
    color: #d29922;
    background: #2d2300;
}

/* ── Success CTA variant (do-it actions) ─────────────────────── */
.cta-link--success {
    background: var(--ha-success-soft, #eef7ee);
    color: var(--ha-success-emphasis, #1a7f37);
}

.cta-link--success:hover {
    background: var(--ha-success-bg, #dcfce7);
}

.dark-theme .cta-link--success {
    background: #0f2d16;
    color: #3fb950;
}

.dark-theme .cta-link--success:hover {
    background: #133a1b;
}

@media (max-width: 480px) {
    .home-hero {
        padding: 1.25rem 1rem;
    }

    .home-hero__greeting {
        font-size: 1.35rem;
    }

    .home-hero__cta {
        width: 100%;
        justify-content: center;
    }
}