:root {
    --brand-blue: #2b74af;
    --brand-blue-dark: #205f91;
    --brand-blue-soft: #eaf3f9;
    --brand-grey: #3d4347;
    --text: #24313a;
    --muted: #687783;
    --border: #d9e1e6;
    --surface: #ffffff;
    --surface-soft: #f6f8fa;
    --success: #237a55;
    --success-soft: #e9f6ef;
    --error: #a63838;
    --error-soft: #fceeee;
    --radius: 12px;
    --shadow: 0 8px 26px rgba(37, 58, 73, 0.08);
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
    margin: 0;
    background: var(--surface-soft);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.45;
}

button, input, select { font: inherit; }

a { color: var(--brand-blue-dark); }

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 4px; font-size: clamp(1.55rem, 4vw, 2.05rem); line-height: 1.15; }
h2 { margin-bottom: 0; font-size: 1.1rem; }

.app-shell {
    width: min(1080px, calc(100% - 28px));
    margin: 22px auto;
}

.brand-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 12px 16px;
    border-bottom: 3px solid var(--brand-blue);
    background: var(--surface);
    border-radius: var(--radius) var(--radius) 0 0;
}

.brand-link {
    display: block;
    width: 200px;
    height: 62px;
    overflow: hidden;
    background: #fbfbfb;
}

.brand-header img {
    display: block;
    width: 200px;
    height: 200px;
    transform: translateY(-69px);
}

.brand-header span { color: var(--muted); font-size: .9rem; }

.main-nav, .sub-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    padding: 10px 14px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.main-nav a, .sub-nav a {
    padding: 9px 12px;
    border-radius: 9px;
    color: var(--brand-grey);
    text-decoration: none;
    font-weight: 600;
}

.main-nav a:hover, .main-nav a.active,
.sub-nav a:hover, .sub-nav a.active {
    background: var(--brand-blue-soft);
    color: var(--brand-blue-dark);
}

.nav-user {
    margin-left: auto;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--brand-blue-soft);
    color: var(--brand-blue-dark);
    font-size: .88rem;
    font-weight: 600;
}

.main-nav form { margin: 0; }

main {
    display: grid;
    gap: 18px;
    padding: 24px;
    background: var(--surface);
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
}

footer {
    padding: 18px 4px;
    color: var(--muted);
    text-align: center;
    font-size: .82rem;
}

.page-head, .section-head, .capacity-panel, .booking-submit {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.page-head p, .section-head span, .capacity-panel p { margin-bottom: 0; color: var(--muted); }

.panel {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.stack { display: grid; gap: 16px; }
.align-start { justify-self: start; }
.align-end { align-self: end; }

.auth-wrap { display: grid; place-items: center; padding: 28px 0; }
.auth-panel { width: min(460px, 100%); }

label {
    display: grid;
    gap: 6px;
    color: var(--brand-grey);
    font-size: .9rem;
    font-weight: 600;
}

input, select {
    width: 100%;
    min-height: 44px;
    padding: 9px 11px;
    border: 1px solid #bfcbd3;
    border-radius: 9px;
    background: #fff;
    color: var(--text);
}

input:focus, select:focus {
    outline: 3px solid rgba(43, 116, 175, .18);
    border-color: var(--brand-blue);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.booking-filters { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.time-fields { max-width: 520px; }
.hidden { display: none !important; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 13px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
    color: var(--brand-grey);
    text-decoration: none;
    font-weight: 650;
    cursor: pointer;
}

.button:hover { border-color: var(--brand-blue); color: var(--brand-blue-dark); }
.button.primary { border-color: var(--brand-blue); background: var(--brand-blue); color: #fff; }
.button.primary:hover { background: var(--brand-blue-dark); }
.button.ghost { min-height: 34px; padding: 6px 10px; background: transparent; font-size: .86rem; }
.button:disabled { cursor: not-allowed; opacity: .45; }

.badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--brand-blue-soft);
    color: var(--brand-blue-dark);
    font-size: .82rem;
    font-weight: 700;
}
.badge.muted { background: #eef0f1; color: var(--muted); }

.notice {
    margin: 14px 0;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}
.notice.success { border-color: #a7d6be; background: var(--success-soft); color: var(--success); }
.notice.error { border-color: #e5b2b2; background: var(--error-soft); color: var(--error); }

.hint, .empty { margin: 0; color: var(--muted); font-size: .88rem; }

.week-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
}

.day-card {
    display: grid;
    gap: 4px;
    min-width: 0;
    padding: 11px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--brand-grey);
    text-decoration: none;
}
.day-card strong { font-size: .84rem; }
.day-card span { color: var(--muted); font-size: .78rem; }
.day-card:hover, .day-card.active { border-color: var(--brand-blue); background: var(--brand-blue-soft); }

.capacity-panel {
    border-left: 5px solid var(--success);
    background: var(--success-soft);
}
.capacity-panel.unavailable { border-left-color: var(--error); background: var(--error-soft); }
.capacity-panel h2 { font-size: 1.35rem; }

.booking-submit {
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.list { display: grid; }
.list-row {
    display: grid;
    grid-template-columns: minmax(180px, 1.25fr) minmax(130px, .7fr) minmax(230px, auto);
    gap: 14px;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}
.list-row:last-child { border-bottom: 0; }
.list-row > div:first-child { display: grid; gap: 3px; }
.list-row > div:first-child span { color: var(--muted); font-size: .87rem; }
.row-badges, .row-actions { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.row-actions { justify-content: flex-end; }
.row-actions form { margin: 0; }

.sub-nav { padding: 0 0 10px; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.stat {
    display: grid;
    gap: 4px;
    padding: 17px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-soft);
}
.stat span, .stat small { color: var(--muted); }
.stat strong { font-size: clamp(1.35rem, 3vw, 2rem); color: var(--brand-blue-dark); }

.data-table { display: grid; }
.data-row {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) 120px 120px;
    gap: 12px;
    align-items: center;
    padding: 11px 0;
    border-bottom: 1px solid var(--border);
}
.data-row:last-child { border-bottom: 0; }
.data-row.header { color: var(--muted); font-size: .82rem; font-weight: 700; }
.data-row > :not(:first-child) { justify-self: end; text-align: right; }

.focus-panel { border-color: var(--brand-blue); background: var(--brand-blue-soft); }

.plan-navigation {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: center;
}
.plan-navigation > :last-child { justify-self: end; }

.occupancy-grid { display: grid; gap: 12px; }
.occupancy-day {
    display: grid;
    gap: 12px;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}
.occupancy-day.today { border-color: var(--brand-blue); background: var(--brand-blue-soft); }
.occupancy-day-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.occupancy-day-head > div { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.occupancy-day-head > span { color: var(--muted); font-size: .84rem; }
.occupancy-list { display: grid; gap: 8px; }
.occupancy-entry {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 12px;
    padding: 10px 12px;
    border-radius: 9px;
    background: var(--surface-soft);
}
.occupancy-entry span { color: var(--brand-grey); }

@media (max-width: 860px) {
    .week-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .form-grid.three, .booking-filters { grid-template-columns: 1fr 1fr; }
    .list-row { grid-template-columns: 1fr; }
    .row-actions { justify-content: flex-start; }
}

@media (max-width: 620px) {
    .app-shell { width: min(100% - 16px, 1080px); margin: 8px auto; }
    .brand-header { align-items: flex-start; flex-direction: column; }
    .brand-link { width: 190px; }
    .brand-header img { width: 190px; height: 190px; transform: translateY(-65px); }
    .main-nav { align-items: flex-start; }
    .nav-user { margin-left: 0; }
    main { padding: 16px; }
    .form-grid, .form-grid.three, .booking-filters, .stat-grid { grid-template-columns: 1fr; }
    .week-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .data-row { grid-template-columns: minmax(120px, 1fr) 72px 72px; }
    .data-row.header { font-size: .75rem; }
    .plan-navigation { grid-template-columns: 1fr 1fr; }
    .plan-navigation > strong { grid-column: 1 / -1; grid-row: 1; text-align: center; }
    .occupancy-entry { grid-template-columns: 1fr; gap: 2px; }
}