/* Мобільний екран — головний сценарій: великі цілі дотику, один стовпчик. */

:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --text: #14181d;
    --muted: #6b7480;
    --border: #dfe3e8;
    --accent: #2f6df6;
    --accent-text: #ffffff;
    --danger: #c8372d;
    --ok: #2f9e5e;
    --work: #4ade80;
    --rest: #7dd3fc;
    --radius: 12px;
    --tap: 44px;
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111418;
        --surface: #1b1f25;
        --text: #e8ebef;
        --muted: #939ba6;
        --border: #2c323a;
        --accent: #4d86ff;
        --danger: #ef6a5f;
        --ok: #3fbf78;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    -webkit-text-size-adjust: 100%;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: max(10px, env(safe-area-inset-top)) 16px 10px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar .brand { font-weight: 650; text-decoration: none; color: var(--text); }

/* Бургер. Мобільний вигляд основний, широкий екран описаний нижче винятком. */

.burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: var(--tap);
    height: var(--tap);
    margin-left: auto;
    margin-right: -10px;
    padding: 0 10px;
    border: 0;
    background: none;
    cursor: pointer;
}

.burger span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--text);
    transition: transform 160ms ease, opacity 160ms ease;
}

.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.topbar nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 6px 0 10px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgb(0 0 0 / 0.18);
}

.topbar nav.is-open { display: flex; }

.topbar nav a {
    display: flex;
    align-items: center;
    min-height: var(--tap);
    padding: 0 16px;
    color: var(--text);
    text-decoration: none;
}

.topbar nav a[aria-current] { color: var(--accent); font-weight: 650; }

.nav-user {
    padding: 10px 16px 4px;
    color: var(--muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 6px;
}

@media (min-width: 640px) {
    .burger { display: none; }

    .topbar nav {
        display: flex;
        position: static;
        flex-direction: row;
        align-items: center;
        gap: 14px;
        margin-left: auto;
        padding: 0;
        background: none;
        border: 0;
        box-shadow: none;
    }

    .topbar nav a { min-height: auto; padding: 6px 2px; color: var(--muted); }
    .topbar nav a[aria-current] { color: var(--text); font-weight: 400; box-shadow: inset 0 -2px 0 var(--accent); }
    .nav-user { display: none; }
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 16px 16px calc(32px + env(safe-area-inset-bottom));
}

h1 { font-size: 1.35rem; margin: 4px 0 16px; }
h2 { font-size: 1.05rem; margin: 24px 0 8px; }

.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.page-head h1 { margin: 0; }
.page-head .btn { margin-left: auto; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* Списки */

.card-list { display: flex; flex-direction: column; gap: 10px; }

.card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    text-decoration: none;
    color: inherit;
}

.card-title { display: flex; align-items: baseline; gap: 8px; font-weight: 600; }
.card-title .spacer { margin-left: auto; }
.card-meta { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.pill-plain { background: color-mix(in srgb, var(--muted) 16%, transparent); color: var(--muted); }

.empty {
    padding: 32px 16px;
    text-align: center;
    color: var(--muted);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* Кнопки */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--tap);
    padding: 0 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.btn-block { width: 100%; }

.actions { display: flex; flex-direction: row; gap: 10px; margin-top: 20px; }
.actions .btn { flex: 1; }
.actions form { flex: 1; display: flex; }

/* Форми */

.form, .form .section { display: flex; flex-direction: column; gap: 14px; }

.form .section { gap: 14px; }
.form .section + .section { border-top: 1px solid var(--border); padding-top: 20px; }

.form-row { display: flex; flex-direction: column; gap: 6px; }

.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--muted); }

.form-row input:not([type="checkbox"]):not([type="hidden"]),
.form-row select,
.form-row textarea {
    width: 100%;
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font: inherit;
}

.form-row textarea { min-height: 90px; resize: vertical; }

.form-row input:focus-visible,
.form-row select:focus-visible,
.form-row textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.form-row .form-help { color: var(--muted); font-size: 0.8rem; }
.form-row ul { margin: 0; padding-left: 18px; color: var(--danger); font-size: 0.85rem; }
.form-row.has-error input,
.form-row.has-error select { border-color: var(--danger); }

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: end; }

.checkbox-row { display: flex; flex-direction: row; align-items: center; gap: 10px; }
.checkbox-row label { font-size: 1rem; font-weight: 500; color: var(--text); }

.section-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0;
}

.row-note { color: var(--muted); font-size: 0.8rem; margin: -4px 0 0; }

[hidden] { display: none !important; }

input[type="checkbox"] { width: 22px; height: 22px; accent-color: var(--accent); margin: 0; }

/* Склад дня: чекбокс + номер порядку */

.picker { display: flex; flex-direction: column; gap: 6px; }

.picker-group {
    margin: 14px 0 2px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.picker-row {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: var(--tap);
    padding: 6px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.picker-row.is-selected { border-color: var(--accent); }
.picker-row:not(.is-selected) input[type="number"] { visibility: hidden; }

.picker-head {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 0 12px;
    font-size: 0.75rem;
    color: var(--muted);
}
.picker-head .spacer { flex: 1; }

.order-preview {
    margin: 0 0 10px;
    padding: 12px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
}
.order-preview ol { margin: 6px 0 0; padding-left: 22px; }
.order-preview li { padding: 1px 0; }
.order-preview .title { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.picker-row .name { flex: 1; min-width: 0; }
.picker-row .name small { display: block; color: var(--muted); font-size: 0.8rem; }
.picker-row input[type="number"] {
    width: 64px;
    min-height: 36px;
    padding: 4px 8px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
}

/* Флеш-повідомлення */

.flash {
    margin: 0 0 14px;
    padding: 12px 14px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

/* Екран тренування */

.run-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
}

.run-card.is-complete { border-color: color-mix(in srgb, var(--ok) 55%, var(--border)); }

.run-card-head { display: flex; align-items: baseline; gap: 10px; }
.run-name { font-weight: 650; flex: 1; min-width: 0; }
.run-count { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.run-card.is-complete .run-count b { color: var(--ok); }

.run-meta { color: var(--muted); font-size: 0.85rem; margin: 4px 0 12px; }

.run-actions { display: flex; gap: 10px; }
.run-actions .btn-primary { flex: 1; }
.btn-ghost { min-width: 56px; color: var(--muted); }

.run-notes { margin-top: 12px; font-size: 0.85rem; }
.run-notes summary { color: var(--muted); cursor: pointer; min-height: 32px; display: flex; align-items: center; }
.run-notes p { margin: 6px 0 0; color: var(--muted); }

/* Накладка таймера */

.timer-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 24px;
    text-align: center;
    background: var(--bg);
    transition: background-color 200ms ease;
}

.timer-overlay[data-kind="work"] { background: var(--work); color: #06130a; }
.timer-overlay[data-kind="rest"] { background: var(--rest); color: #04121e; }
.timer-overlay[data-kind="paused"] { background: var(--surface); color: var(--text); }
.timer-overlay[data-kind="done"] { background: var(--ok); color: #06130a; }

.timer-name { margin: 0; font-size: 1.1rem; font-weight: 650; }
.timer-phase { margin: 0; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.75; }

.timer-digits {
    margin: 4px 0;
    font-size: clamp(4.5rem, 34vw, 9rem);
    font-weight: 700;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.03em;
}

.timer-progress { margin: 0 0 20px; font-size: 1rem; opacity: 0.8; }

.timer-actions { display: flex; gap: 10px; width: 100%; max-width: 420px; }
.timer-actions .btn { flex: 1; background: rgba(255, 255, 255, 0.14); border-color: transparent; color: inherit; }

/* Таблиці історії */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td { padding: 7px 8px; text-align: left; }
.data-table th { font-size: 0.75rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.data-table tbody tr { border-top: 1px solid var(--border); }
.data-table td:first-child, .data-table th:first-child { padding-left: 0; }

.run-card .data-table { margin-top: 8px; }

/* Графік прогресу */

.chart {
    margin: 0 0 24px;
    padding: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-x: auto;
}

.chart figcaption {
    margin-bottom: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.chart svg { display: block; min-width: 320px; }

.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-bar { fill: var(--accent); }
.chart-bar:hover { fill: color-mix(in srgb, var(--accent) 75%, var(--text)); }
.chart-axis { fill: var(--muted); font-size: 13px; }
.chart-value { fill: var(--text); font-size: 13px; font-weight: 600; }

.btn-small { min-height: 34px; padding: 0 12px; font-size: 0.85rem; }
.run-card-head .btn-small { flex: none; }

/* Показники картки */

.stat-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.stat-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.stat-value { font-size: 1.35rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.stat-value small { font-size: 0.8rem; font-weight: 500; color: var(--muted); }


.today-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px 14px;
    margin-bottom: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.today-bar > span { flex: 1; min-width: 0; }
.today-bar form { display: flex; }

/* Вхід і реєстрація */

.auth { max-width: 380px; margin: 24px auto 0; }
.auth h1 { margin-bottom: 18px; }
.auth p a { color: var(--accent); }

.topbar-out { color: var(--muted); }
.flash-error {
    background: color-mix(in srgb, var(--danger) 14%, transparent);
    border-color: color-mix(in srgb, var(--danger) 35%, transparent);
}

.empty-action { display: flex; justify-content: center; margin-top: 14px; }