/* ============================================================
   自习室电脑预约系统 · 样式表
   ============================================================ */

:root {
    --bg: #f4f6fb;
    --card: #ffffff;
    --ink: #1e293b;
    --ink-soft: #64748b;
    --line: #e5e7eb;
    --primary: #3b5bdb;
    --primary-dark: #2f49b0;
    --primary-soft: #eef2ff;
    --lunch: #d97706;
    --lunch-soft: #fff7ed;
    --afternoon: #0f766e;
    --afternoon-soft: #ecfdf5;
    --evening: #7c3aed;
    --evening-soft: #f5f3ff;
    --free: #16a34a;
    --free-soft: #f0fdf4;
    --taken: #e11d48;
    --taken-soft: #fff1f2;
    --mine: #2563eb;
    --mine-soft: #eff6ff;
    --off: #94a3b8;
    --off-soft: #f1f5f9;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 10px 30px rgba(15, 23, 42, .06);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink);
    background: var(--bg);
}

h1, h2, h3 {
    margin: 0 0 .5rem;
    line-height: 1.35;
    letter-spacing: -.01em;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.1rem; }
p { margin: 0 0 .75rem; }
small { font-size: .8125rem; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--ink-soft); }
.small { font-size: .8125rem; }
.sep { margin: 0 .4rem; color: #cbd5e1; }
.right { text-align: right; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.empty {
    margin: 0;
    padding: 1.5rem;
    text-align: center;
    color: var(--ink-soft);
    background: #f8fafc;
    border: 1px dashed var(--line);
    border-radius: 10px;
}

/* ---------- 顶栏 ---------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(250, 252, 255, .9);
    backdrop-filter: blur(18px) saturate(150%);
    border-bottom: 1px solid rgba(226, 232, 240, .9);
    box-shadow: 0 6px 24px rgba(15, 23, 42, .045);
}

.topbar::before {
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: linear-gradient(90deg, #4c6ef5, #7048e8 48%, #14b8a6);
    content: "";
}

.topbar-inner {
    max-width: 1180px;
    margin: 0 auto;
    min-height: 70px;
    padding: .62rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: .7rem;
    color: inherit;
}

.brand:hover { text-decoration: none; }

.brand-mark {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    background: linear-gradient(135deg, #4c6ef5, #7048e8);
    color: #fff;
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .02em;
    box-shadow: 0 7px 16px rgba(76, 110, 245, .28);
}

.brand-mark-lg {
    width: 58px;
    height: 58px;
    flex-basis: 58px;
    font-size: 1.2rem;
    border-radius: 16px;
    margin-bottom: .9rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.brand-text strong { font-size: 1.02rem; }
.brand-text small {
    color: var(--ink-soft);
    font-size: .7rem;
    letter-spacing: .02em;
}

.nav {
    display: flex;
    gap: .35rem;
    margin-right: auto;
}

.nav a {
    padding: .4rem .85rem;
    border-radius: 999px;
    color: var(--ink-soft);
    font-weight: 500;
    font-size: .92rem;
}

.nav a:hover {
    background: var(--primary-soft);
    color: var(--primary);
    text-decoration: none;
}

.nav a.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 14px rgba(59, 91, 219, .28);
}

.portal-nav {
    margin-left: auto;
    margin-right: auto;
    padding: .24rem;
    border: 1px solid rgba(226, 232, 240, .92);
    border-radius: 999px;
    background: rgba(248, 250, 252, .82);
    gap: .12rem;
}

.portal-nav a {
    padding: .44rem .9rem;
    border-radius: 999px;
    color: #64748b;
    font-size: .87rem;
    font-weight: 600;
    white-space: nowrap;
    transition: color .16s, background .16s, box-shadow .16s, transform .16s;
}

.portal-nav a:hover {
    background: #fff;
    color: var(--primary);
    text-decoration: none;
    box-shadow: 0 3px 10px rgba(15, 23, 42, .06);
}

.portal-nav a.active {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(15, 23, 42, .08);
}

.portal-nav .nav-booking,
.portal-nav .nav-booking.active {
    margin-left: .16rem;
    background: linear-gradient(135deg, #4c6ef5, #3b5bdb);
    color: #fff;
    box-shadow: 0 7px 16px rgba(59, 91, 219, .25);
}

.portal-nav .nav-booking:hover {
    background: linear-gradient(135deg, #4263e8, #2f49b0);
    color: #fff;
    transform: translateY(-1px);
}

.nav-external {
    margin-left: .08rem;
    font-size: .72rem;
    opacity: .8;
}

.user {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.user-avatar {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 700;
}

.user-meta {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.user-meta small { color: var(--ink-soft); font-size: .75rem; }

/* ---------- 布局 ---------- */

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2.5rem;
    flex: 1;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem 1.35rem;
    margin-bottom: 1.25rem;
}

.card h2 { margin-bottom: .85rem; }

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.1rem;
}

.page-head p { margin: 0; }

.booking-layout {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.booking-layout > .card { margin-bottom: 1.25rem; }

.booking-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.1rem;
    padding: .85rem 1.1rem;
    border: 1px solid #dbe4ff;
    border-radius: var(--radius);
    background: linear-gradient(115deg, #fff, #f8faff 62%, #eef2ff);
    box-shadow: var(--shadow-sm);
}

.booking-hero .seat-head-code {
    min-width: 52px;
    height: 52px;
    border-radius: 13px;
}

.booking-hero h1 {
    margin: 0;
    font-size: 1.55rem;
}

.booking-hero p {
    margin: .1rem 0 0;
    font-size: .84rem;
}

.booking-kicker {
    display: block;
    margin-bottom: .05rem;
    color: var(--primary);
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .06em;
}

.booking-hero-actions {
    display: flex;
    align-items: center;
    gap: .55rem;
}

.window-chip {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .05rem;
    padding: .38rem .7rem;
    border: 1px solid #dbe4ff;
    border-radius: 10px;
    background: rgba(255, 255, 255, .76);
}

.window-chip strong {
    color: var(--primary);
    font-size: .78rem;
}

.window-chip small {
    color: var(--ink-soft);
    font-size: .68rem;
    font-variant-numeric: tabular-nums;
}

.planner-card {
    padding: 1.05rem 1.1rem;
}

.planner-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: .75rem;
    margin-bottom: .85rem;
}

.planner-card-head h2 {
    margin: 0;
}

.planner-eyebrow {
    display: block;
    margin-bottom: .05rem;
    color: var(--ink-soft);
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .05em;
}

.planner-window {
    padding: .18rem .5rem;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: .7rem;
    font-weight: 600;
    white-space: nowrap;
}

.planner-card .field {
    margin-bottom: .85rem;
}

.step-label {
    display: flex !important;
    align-items: center;
    gap: .38rem;
    margin-bottom: .45rem !important;
}

.step-label i {
    display: inline-grid;
    place-items: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: .68rem;
    font-style: normal;
    font-weight: 700;
}

.slot-choices-compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .35rem;
}

.slot-choices-compact .slot-choice-body {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .08rem;
    padding: .52rem .2rem;
    text-align: center;
}

.slot-choices-compact .slot-choice-body strong {
    font-size: .86rem;
}

.slot-choices-compact .slot-choice-body small {
    font-size: .66rem;
    white-space: nowrap;
}

.range-hint {
    margin: .35rem 0 0;
}

/* ---------- 表单 ---------- */

.form .field { margin-bottom: 1rem; }

.form label,
.field-label {
    display: block;
    margin-bottom: .35rem;
    font-weight: 600;
    font-size: .88rem;
    color: #334155;
}

input[type="text"],
input[type="password"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: .55rem .7rem;
    font: inherit;
    color: inherit;
    background: #fff;
    border: 1px solid #d7dbe3;
    border-radius: 10px;
    transition: border-color .15s, box-shadow .15s;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 91, 219, .15);
}

.field-inline {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.field-inline span {
    font-size: .85rem;
    color: var(--ink-soft);
    white-space: nowrap;
}

.field-inline input { width: auto; }

.field-error {
    display: block;
    margin-top: .25rem;
    color: var(--taken);
    font-size: .8rem;
}

.validation {
    margin-bottom: .85rem;
    color: var(--taken);
    font-size: .88rem;
}

.validation:empty { display: none; }

.validation ul { margin: .25rem 0 0; padding-left: 1.1rem; }

.slot-choices {
    display: grid;
    gap: .5rem;
}

.slot-choice {
    position: relative;
    display: block;
    cursor: pointer;
    margin: 0;
}

.slot-choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.slot-choice-body {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .5rem;
    padding: .55rem .8rem;
    border: 1px solid #d7dbe3;
    border-radius: 10px;
    background: #fff;
    transition: all .15s;
}

.slot-choice-body small { color: var(--ink-soft); }

.slot-choice:hover .slot-choice-body { border-color: #b9c2d4; }

.slot-choice input:checked + .slot-choice-body {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 0 3px rgba(59, 91, 219, .14);
}

.slot-choice input:focus-visible + .slot-choice-body {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ---------- 按钮 ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .35rem;
    padding: .5rem 1rem;
    font: inherit;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all .15s;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: none; }

.btn-primary {
    background: linear-gradient(135deg, #4c6ef5, #3b5bdb);
    color: #fff;
    box-shadow: 0 8px 18px rgba(59, 91, 219, .28);
}

.btn-primary:hover { background: linear-gradient(135deg, #4263e8, #2f49b0); }

.btn-ghost {
    background: #fff;
    border-color: var(--line);
    color: var(--ink-soft);
}

.btn-ghost:hover { border-color: #c7cddb; color: var(--ink); }

.btn-danger {
    background: #fff;
    border-color: #fecdd3;
    color: var(--taken);
}

.btn-danger:hover { background: var(--taken-soft); }

.btn-block { width: 100%; }
.btn-lg { padding: .65rem 1rem; font-size: 1rem; }
.btn-sm { padding: .3rem .7rem; font-size: .82rem; border-radius: 8px; }

/* ---------- 提示条 ---------- */

.alert {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .8rem 1rem;
    margin-bottom: 1.1rem;
    border-radius: 12px;
    border: 1px solid transparent;
    font-weight: 500;
    transition: opacity .6s, transform .6s;
}

.alert-icon {
    width: 22px;
    height: 22px;
    flex: 0 0 22px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, .75);
    font-weight: 700;
    font-size: .8rem;
}

.alert-success {
    background: var(--free-soft);
    border-color: #bbf7d0;
    color: #15803d;
}

.alert-error {
    background: var(--taken-soft);
    border-color: #fecdd3;
    color: #be123c;
}

.alert-fade { opacity: 0; transform: translateY(-4px); }

/* ---------- 表格 ---------- */

.table-scroll {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--line);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

thead th {
    padding: .6rem .75rem;
    text-align: left;
    font-size: .82rem;
    font-weight: 600;
    color: var(--ink-soft);
    background: #f8fafc;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

thead th small {
    display: block;
    font-weight: 400;
    color: #94a3b8;
    font-size: .75rem;
}

tbody td {
    padding: .6rem .75rem;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

tbody tr:last-child td,
tbody tr:last-child th { border-bottom: none; }

tbody tr:hover td { background: #fbfcfe; }

.row-mine td { background: var(--mine-soft); }
.row-mine:hover td { background: #e6efff; }
.row-muted td { color: var(--ink-soft); }

/* ---------- 机位时段网格 ---------- */

.grid-table { min-width: 560px; }

.grid-table .seat-col {
    width: 92px;
    text-align: left;
    padding: .6rem .75rem;
    background: #f8fafc;
    border-bottom: 1px solid #f1f5f9;
}

.grid-table tbody tr:last-child .seat-col { border-bottom: none; }

.seat-code {
    display: inline-block;
    padding: .1rem .45rem;
    border-radius: 6px;
    background: #e2e8f5;
    color: #334155;
    font-weight: 700;
    font-family: "Consolas", "Courier New", monospace;
    font-size: .85rem;
}

.grid-table .seat-col small {
    display: block;
    color: var(--ink-soft);
    font-size: .75rem;
    font-weight: 400;
}

.cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .1rem;
    width: 100%;
    min-height: 46px;
    padding: .35rem .5rem;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: .88rem;
    text-align: center;
}

.cell small { font-size: .72rem; opacity: .85; }

button.cell {
    font: inherit;
    cursor: pointer;
    transition: all .15s;
}

.cell-free {
    background: var(--free-soft);
    border-color: #bbf7d0;
    color: #15803d;
    font-weight: 600;
}

button.cell-free:hover {
    background: #dcfce7;
    border-color: var(--free);
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(22, 163, 74, .18);
}

.cell-taken {
    background: var(--taken-soft);
    border-color: #fecdd3;
    color: #be123c;
}

.cell-mine {
    background: var(--mine-soft);
    border-color: #bfdbfe;
    color: #1d4ed8;
}

.cell-past {
    background: var(--off-soft);
    border-color: var(--line);
    color: var(--off);
}

.cell-off {
    background: repeating-linear-gradient(45deg, #f1f5f9, #f1f5f9 6px, #e9eef5 6px, #e9eef5 12px);
    color: var(--off);
    border-color: var(--line);
}

.legend {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: .85rem;
    font-size: .82rem;
    color: var(--ink-soft);
}

.legend span { display: inline-flex; align-items: center; gap: .35rem; }

.dot {
    width: 11px;
    height: 11px;
    border-radius: 3px;
    display: inline-block;
}

.dot-free { background: #bbf7d0; border: 1px solid var(--free); }
.dot-mine { background: #bfdbfe; border: 1px solid var(--mine); }
.dot-taken { background: #fecdd3; border: 1px solid var(--taken); }
.dot-off { background: var(--off-soft); border: 1px solid var(--off); }

/* ---------- 徽标 / 标签 ---------- */

.badge {
    display: inline-block;
    padding: .1rem .5rem;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 600;
    white-space: nowrap;
}

.slot-1 { background: var(--lunch-soft); color: var(--lunch); }
.slot-2 { background: var(--afternoon-soft); color: var(--afternoon); }
.slot-3 { background: var(--evening-soft); color: var(--evening); }

.tag {
    display: inline-block;
    padding: .05rem .45rem;
    border-radius: 6px;
    background: var(--off-soft);
    color: var(--ink-soft);
    font-size: .75rem;
    font-weight: 600;
    white-space: nowrap;
}

.tag-ok { background: var(--free-soft); color: #15803d; }
.tag-off { background: var(--off-soft); color: var(--off); }
.tag-mine { background: var(--mine-soft); color: var(--mine); }
.tag-today { background: var(--primary-soft); color: var(--primary); }

/* ---------- 统计页 ---------- */

.stats-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    padding: 1.1rem 1.2rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.stat-label { font-size: .84rem; color: var(--ink-soft); }

.stat-value {
    font-size: 1.9rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
}

.stat-foot { font-size: .78rem; color: var(--ink-soft); }

.stat-table { min-width: 720px; }

.slot-dots {
    display: inline-flex;
    gap: .3rem;
}

.slot-dot {
    min-width: 46px;
    padding: .1rem .3rem;
    border-radius: 6px;
    font-size: .72rem;
    text-align: center;
}

.slot-dot.on { background: var(--taken-soft); color: var(--taken); font-weight: 600; }
.slot-dot.off { background: var(--free-soft); color: #15803d; }

.usage-col { width: 190px; }

.progress {
    height: 8px;
    border-radius: 999px;
    background: #eef2f7;
    overflow: hidden;
    margin-bottom: .25rem;
}

.progress-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #4c6ef5, #7048e8);
}

.bars {
    display: grid;
    gap: .85rem;
}

.bar-row {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr) 70px;
    align-items: center;
    gap: .75rem;
}

.bar-label { display: flex; align-items: center; gap: .45rem; }

.bar-track {
    height: 14px;
    border-radius: 999px;
    background: #eef2f7;
    overflow: hidden;
}

.bar-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    min-width: 4px;
    transition: width .4s ease;
}

.slot-fill-1 { background: linear-gradient(90deg, #fbbf24, #d97706); }
.slot-fill-2 { background: linear-gradient(90deg, #2dd4bf, #0f766e); }
.slot-fill-3 { background: linear-gradient(90deg, #a78bfa, #7c3aed); }

.bar-value { text-align: right; font-size: .82rem; color: var(--ink-soft); }

/* ---------- 表单卡片里的说明 ---------- */

.notice {
    margin-top: 1rem;
    padding: .85rem 1rem;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 12px;
}

.notice strong { font-size: .85rem; }

.notice ul {
    margin: .5rem 0 .5rem;
    padding: 0;
    list-style: none;
    display: grid;
    gap: .35rem;
}

.notice p:last-child { margin-bottom: 0; }

.flash { animation: flash 0.9s ease; }

@keyframes flash {
    0% { box-shadow: 0 0 0 0 rgba(59, 91, 219, .45); }
    100% { box-shadow: 0 0 0 14px rgba(59, 91, 219, 0); }
}

/* ---------- 登录页 ---------- */

.login-body {
    background: linear-gradient(140deg, #4c6ef5 0%, #7048e8 45%, #5f3dc4 100%);
    display: grid;
    place-items: center;
    padding: 2rem 1rem;
}

.login-wrap {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, .28);
    padding: 2rem 1.9rem 1.7rem;
}

.login-head {
    text-align: center;
    margin-bottom: 1.4rem;
}

.login-head .brand-mark { margin-inline: auto; }

.login-head h1 { font-size: 1.3rem; margin-bottom: .25rem; }
.login-head p { color: var(--ink-soft); font-size: .88rem; margin: 0; }

.login-foot {
    text-align: center;
    margin: 1rem 0 0;
    color: rgba(255, 255, 255, .8);
    font-size: .82rem;
}

/* ---------- 页脚 ---------- */

.footer {
    padding: 1.1rem 1.25rem;
    text-align: center;
    color: var(--ink-soft);
    font-size: .8rem;
    border-top: 1px solid var(--line);
    background: #fff;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1000px) {
    .booking-layout { grid-template-columns: 1fr; }
    .stats-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .topbar-inner { gap: .8rem; }
    .nav { order: 3; width: 100%; margin-right: 0; overflow-x: auto; }
    .user { margin-left: auto; }
    .user-meta { display: none; }
    .stats-cards { grid-template-columns: 1fr; }
    .bar-row { grid-template-columns: 1fr; gap: .3rem; }
    .bar-value { text-align: left; }
    .page-head { align-items: flex-start; }
}

/* ---------- 批量预约 ---------- */

.weekday-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: .35rem;
}

.weekday-chip {
    position: relative;
    margin: 0;
    cursor: pointer;
}

.weekday-chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.weekday-chip span {
    display: grid;
    place-items: center;
    padding: .5rem .1rem;
    border: 1px solid #d7dbe3;
    border-radius: 10px;
    background: #fff;
    font-size: .85rem;
    transition: all .15s;
}

.weekday-chip:hover span { border-color: #b9c2d4; }

.weekday-chip input:checked + span {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
}

.weekday-chip input:focus-visible + span {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.preset-row {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .6rem;
}

.range-row {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.range-row input {
    flex: 1;
    min-width: 0;
}

.range-sep {
    color: var(--ink-soft);
    font-size: .85rem;
    white-space: nowrap;
}

.preview-card {
    overflow: hidden;
}

.preview-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.preview-eyebrow {
    display: block;
    margin-bottom: .1rem;
    color: var(--primary);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.preview-slot {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .1rem;
    min-width: 128px;
    padding: .5rem .75rem;
    border: 1px solid #dbe4ff;
    border-radius: 12px;
    background: linear-gradient(135deg, #f8faff, var(--primary-soft));
}

.preview-slot-name {
    color: var(--primary);
    font-size: .92rem;
    font-weight: 700;
}

.preview-slot-range {
    color: var(--ink-soft);
    font-size: .74rem;
    font-variant-numeric: tabular-nums;
}

.preview-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .55rem;
    margin-bottom: .9rem;
}

.preview-stat {
    display: flex;
    align-items: baseline;
    gap: .35rem;
    padding: .55rem .65rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #f8fafc;
}

.preview-stat strong {
    font-size: 1.15rem;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.preview-stat span {
    color: var(--ink-soft);
    font-size: .72rem;
    white-space: nowrap;
}

.preview-stat.is-free {
    background: var(--free-soft);
    border-color: #bbf7d0;
}

.preview-stat.is-free strong { color: var(--free); }

.preview-stat.is-taken {
    background: var(--taken-soft);
    border-color: #fecdd3;
}

.preview-stat.is-taken strong { color: var(--taken); }

.preview-stat.is-past {
    background: var(--off-soft);
    border-color: #e2e8f0;
}

.preview-stat.is-past strong { color: var(--off); }

.preview-stat.is-idle strong { color: #475569; }

.booking-calendar {
    padding: .75rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: linear-gradient(180deg, #fbfcff, #f8fafc);
}

.calendar-range {
    margin-bottom: .35rem;
    color: var(--ink-soft);
    font-size: .72rem;
    font-variant-numeric: tabular-nums;
    text-align: right;
}

.calendar-weekdays,
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: .4rem;
}

.calendar-weekdays {
    margin-bottom: .35rem;
}

.calendar-weekdays span {
    padding: .15rem 0;
    color: var(--ink-soft);
    font-size: .72rem;
    font-weight: 600;
    text-align: center;
}

.calendar-day {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: .18rem;
    min-height: 74px;
    padding: .45rem .5rem .4rem;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: #fff;
    transition: transform .15s, box-shadow .15s;
}

.calendar-day-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: .2rem;
}

.calendar-day-num {
    font-size: 1.05rem;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.calendar-day-marker {
    min-height: 1em;
    color: var(--ink-soft);
    font-size: .62rem;
    line-height: 1;
}

.calendar-day-state {
    font-size: .68rem;
    font-weight: 600;
    line-height: 1.2;
}

.calendar-day-slots {
    display: flex;
    gap: .22rem;
    margin-top: auto;
}

.slot-pip {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #dbe3ef;
}

.slot-pip.slot-1 { --pip-color: var(--lunch); }
.slot-pip.slot-2 { --pip-color: var(--afternoon); }
.slot-pip.slot-3 { --pip-color: var(--evening); }

.slot-pip.is-on {
    background: var(--pip-color);
}

.calendar-day.is-free {
    background: linear-gradient(155deg, #fff, var(--free-soft));
    border-color: #86efac;
    box-shadow: inset 0 0 0 1px rgba(22, 163, 74, .08);
}

.calendar-day.is-free .calendar-day-state { color: #15803d; }

.calendar-day.is-taken {
    background:
        repeating-linear-gradient(135deg, rgba(225, 29, 72, .035), rgba(225, 29, 72, .035) 7px, transparent 7px, transparent 14px),
        var(--taken-soft);
    border-color: #fda4af;
}

.calendar-day.is-taken .calendar-day-state,
.calendar-day.is-taken .calendar-day-num { color: #be123c; }

.calendar-day.is-past {
    background: var(--off-soft);
    border-color: #e2e8f0;
    color: var(--off);
}

.calendar-day.is-idle {
    background: #fff;
    border-color: #e8edf5;
}

.calendar-day.is-idle .calendar-day-state { color: #94a3b8; }

.calendar-day.is-outside {
    opacity: .35;
    background: #f8fafc;
}

.calendar-day.is-today {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 91, 219, .15);
}

.calendar-day.is-today .calendar-day-marker {
    padding: .05rem .28rem;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
}

.calendar-legend {
    display: flex;
    align-items: center;
    gap: .85rem;
    flex-wrap: wrap;
    margin-top: .75rem;
    color: var(--ink-soft);
    font-size: .72rem;
}

.calendar-legend > span {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}

.calendar-key {
    display: inline-block;
    width: 11px;
    height: 11px;
    border: 1px solid transparent;
    border-radius: 3px;
}

.calendar-key.is-free { background: #dcfce7; border-color: #86efac; }
.calendar-key.is-taken { background: #ffe4e6; border-color: #fda4af; }
.calendar-key.is-idle { background: #fff; border-color: #cbd5e1; }

.calendar-slot-legend {
    margin-left: auto;
    gap: .28rem !important;
}

.calendar-slot-legend em {
    margin-right: .35rem;
    font-style: normal;
}

.preview-note {
    margin: .9rem 0 0;
    padding-top: .7rem;
    border-top: 1px dashed var(--line);
}

.result-list { display: grid; gap: .4rem; }

.result-item {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .5rem .75rem;
    border: 1px solid transparent;
    border-radius: 10px;
    font-size: .9rem;
}

.result-item .date {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.result-item .weekday {
    opacity: .8;
    font-size: .82rem;
}

.result-item .spacer { margin-left: auto; }

.result-item.ok {
    background: var(--free-soft);
    border-color: #bbf7d0;
    color: #15803d;
}

.result-item.fail {
    background: var(--taken-soft);
    border-color: #fecdd3;
    color: #be123c;
}

.tag-taken {
    background: var(--taken-soft);
    color: var(--taken);
}

@media (max-width: 720px) {
    .range-row { flex-direction: column; align-items: stretch; }
    .range-sep { text-align: center; }
    .booking-hero { align-items: flex-start; }
    .booking-hero-actions {
        width: 100%;
        justify-content: space-between;
    }
    .preview-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .booking-calendar { padding: .55rem; }
    .calendar-weekdays,
    .calendar-grid { gap: .25rem; }
    .calendar-day {
        min-height: 72px;
        padding: .35rem .3rem;
    }
    .calendar-day-num { font-size: .9rem; }
    .calendar-day-state { font-size: .6rem; }
    .calendar-day-marker { font-size: .55rem; }
    .calendar-legend { gap: .55rem; }
    .calendar-slot-legend { margin-left: 0; }
}

@media (max-width: 520px) {
    .booking-calendar {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .calendar-weekdays,
    .calendar-grid { min-width: 540px; }
}

/* ---------- 桌位配色：A 蓝 / B 青 / C 琥珀 / D 紫 ---------- */

:root {
    --desk-1: #3b5bdb;
    --desk-1-soft: #eef2ff;
    --desk-2: #0f766e;
    --desk-2-soft: #ecfdf5;
    --desk-3: #b45309;
    --desk-3-soft: #fffbeb;
    --desk-4: #7c3aed;
    --desk-4-soft: #f5f3ff;
    --desk-0: #64748b;
    --desk-0-soft: #f1f5f9;
}

.desk-1 { --desk-color: var(--desk-1); --desk-soft: var(--desk-1-soft); }
.desk-2 { --desk-color: var(--desk-2); --desk-soft: var(--desk-2-soft); }
.desk-3 { --desk-color: var(--desk-3); --desk-soft: var(--desk-3-soft); }
.desk-4 { --desk-color: var(--desk-4); --desk-soft: var(--desk-4-soft); }
.desk-0 { --desk-color: var(--desk-0); --desk-soft: var(--desk-0-soft); }

.seat-code.desk-1,
.seat-code.desk-2,
.seat-code.desk-3,
.seat-code.desk-4,
.seat-code.desk-0 {
    background: var(--desk-soft);
    color: var(--desk-color);
}

/* ---------- 按桌分组的机位时段总览 ---------- */

.grid-grouped tbody tr.desk-head th {
    padding: .45rem .75rem;
    text-align: left;
    font-size: .85rem;
    background: linear-gradient(90deg, var(--desk-soft), #fff 78%);
    border-left: 5px solid var(--desk-color);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.grid-grouped tbody tr.desk-head:first-child th {
    border-top: none;
}

.grid-grouped tbody th.seat-col {
    border-left: 5px solid var(--desk-color);
}

.grid-grouped tbody tr.desk-gap td {
    height: 14px;
    padding: 0;
    border: none;
    background: transparent;
}

.grid-grouped tbody tr.desk-gap:last-child {
    display: none;
}

.grid-grouped tbody tr.desk-gap:hover td {
    background: transparent;
}

.desk-head-inner {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}

.desk-badge {
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    background: var(--desk-color);
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
}

.desk-name {
    font-size: .95rem;
    font-weight: 700;
    color: var(--desk-color);
}

.desk-seats,
.desk-count {
    font-size: .78rem;
    font-weight: 400;
    color: var(--ink-soft);
}

.desk-count {
    margin-left: auto;
}

/* ---------- 机位总览里的可点击格子 / 表单提示 ---------- */

a.cell {
    cursor: pointer;
    text-decoration: none;
}

a.cell-free:hover {
    background: #dcfce7;
    border-color: var(--free);
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(22, 163, 74, .18);
}

.form-tip {
    margin: 1rem 0 0;
    padding-top: .8rem;
    border-top: 1px dashed var(--line);
}

.btn:disabled {
    opacity: .45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ---------- 选机位页 ---------- */

.seat-picker {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.desk-card {
    padding: 1rem 1.1rem 1.1rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-top: 4px solid var(--desk-color, var(--line));
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.desk-card-head {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .85rem;
}

.desk-card-head .desk-count {
    margin-left: auto;
}

.seat-tiles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .7rem;
}

.seat-tile {
    display: flex;
    flex-direction: column;
    gap: .45rem;
    padding: .85rem .9rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    color: inherit;
    transition: all .15s;
}

.seat-tile:hover {
    border-color: var(--desk-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(15, 23, 42, .1);
    text-decoration: none;
}

.seat-tile-code {
    font-family: "Consolas", "Courier New", monospace;
    font-size: 1.55rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--desk-color);
}

.seat-tile-hint {
    font-size: .74rem;
    color: var(--ink-soft);
}

.seat-tile-hint strong {
    font-size: .86rem;
    color: var(--ink);
}

.seat-tile-bar {
    display: block;
    height: 6px;
    border-radius: 999px;
    background: #eef2f7;
    overflow: hidden;
}

.seat-tile-bar i {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: var(--free);
}

.seat-tile-bar.warn i { background: #f59e0b; }
.seat-tile-bar.low i { background: var(--taken); }

.seat-tile-cta {
    font-size: .74rem;
    font-weight: 600;
    color: var(--desk-color);
}

.seat-tile.is-off {
    opacity: .5;
    background: #f8fafc;
}

.seat-tile.is-off .seat-tile-code {
    color: var(--off);
}

/* 预约表单页的机位标题 */

.seat-head {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.seat-head-code {
    display: inline-grid;
    place-items: center;
    min-width: 58px;
    height: 58px;
    padding: 0 .4rem;
    border-radius: 14px;
    background: var(--desk-soft, #e2e8f5);
    color: var(--desk-color, #334155);
    font-family: "Consolas", "Courier New", monospace;
    font-size: 1.25rem;
    font-weight: 800;
}

.seat-head h1 { margin-bottom: .1rem; }
.seat-head p { margin: 0; }

@media (max-width: 900px) {
    .seat-picker { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .seat-tiles { grid-template-columns: 1fr; }
}

/* ---------- 管理员预约管理 ---------- */

.admin-filter {
    display: flex;
    gap: .9rem;
    align-items: center;
    flex-wrap: wrap;
}

.admin-table { min-width: 920px; }

.admin-table td { vertical-align: middle; }

.admin-table td small {
    display: block;
    font-size: .72rem;
}

.checkin-done {
    display: flex;
    align-items: center;
    gap: .4rem;
}

.note-form {
    display: flex;
    gap: .35rem;
    align-items: center;
    min-width: 260px;
}

.note-form input[type="text"] {
    padding: .35rem .5rem;
    font-size: .85rem;
}

/* ---------- 注册 / 修改密码 ---------- */

.register-result {
    display: grid;
    gap: .6rem;
    margin: .5rem 0 1rem;
    padding: .9rem 1rem;
    background: var(--primary-soft);
    border: 1px solid #dbe4ff;
    border-radius: 12px;
}

.register-result div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
}

.register-result span {
    font-size: .82rem;
    color: var(--ink-soft);
}

.register-result strong {
    font-family: "Consolas", "Courier New", monospace;
    font-size: 1.15rem;
    color: var(--primary);
}

.register-hint {
    margin: .75rem 0 0;
    text-align: center;
}

.register-link {
    margin-top: 1rem;
}

.back-link {
    display: block;
    margin-top: 1rem;
    text-align: center;
    font-size: .85rem;
    color: var(--ink-soft);
}

.narrow-card {
    max-width: 480px;
}

/* ============================================================
   公开门户：首页 / 学习资源 / 规则 / 子导航
   ============================================================ */

.subnav-bar {
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.subnav-inner {
    display: flex;
    gap: .35rem;
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: .55rem 1.25rem;
    overflow-x: auto;
}

.subnav-inner a {
    padding: .32rem .75rem;
    border-radius: 999px;
    color: var(--ink-soft);
    font-size: .84rem;
    font-weight: 600;
    white-space: nowrap;
}

.subnav-inner a:hover {
    background: var(--primary-soft);
    color: var(--primary);
    text-decoration: none;
}

.subnav-inner a.active {
    background: var(--primary-soft);
    color: var(--primary);
}

.portal-eyebrow {
    display: block;
    margin-bottom: .35rem;
    color: var(--primary);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.home-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) 320px;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 2.25rem 2.45rem;
    overflow: hidden;
    border-radius: 24px;
    background:
        radial-gradient(circle at 86% 9%, rgba(196, 181, 253, .5), transparent 29%),
        radial-gradient(circle at 74% 108%, rgba(45, 212, 191, .24), transparent 34%),
        linear-gradient(130deg, #14244c, #2d49a8 52%, #5536b4);
    color: #fff;
    box-shadow: 0 24px 60px rgba(30, 41, 99, .25);
}

.home-hero::before {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .13) 1px, transparent 1px);
    background-size: 20px 20px;
    content: "";
    mask-image: linear-gradient(90deg, rgba(0, 0, 0, .35), transparent 72%);
    pointer-events: none;
}

.home-hero::after {
    position: absolute;
    right: -80px;
    bottom: -100px;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 50%;
    content: "";
}

.home-hero-copy,
.home-status-card {
    position: relative;
    z-index: 1;
}

.home-hero .portal-eyebrow {
    color: #bfdbfe;
}

.home-hero h1 {
    max-width: 680px;
    margin: 0 0 .7rem;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.18;
    letter-spacing: -.035em;
}

.home-hero h1 span {
    color: #c7d2fe;
}

.home-hero p {
    max-width: 620px;
    margin-bottom: 1.2rem;
    color: #dbeafe;
    font-size: .98rem;
}

.home-actions {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
}

.home-hero .btn-primary {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 10px 24px rgba(15, 23, 42, .2);
}

.home-hero .btn-primary:hover {
    background: #eff6ff;
    color: var(--primary-dark);
}

.home-hero .btn-ghost {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .28);
    color: #fff;
}

.home-hero-note {
    display: block;
    margin-top: .9rem;
    color: #bfdbfe;
    font-size: .75rem;
}

.home-hero-meta {
    display: flex;
    gap: .55rem;
    flex-wrap: wrap;
    margin-top: 1.1rem;
}

.home-hero-meta span {
    padding: .24rem .58rem;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 999px;
    background: rgba(255, 255, 255, .07);
    color: #dbeafe;
    font-size: .7rem;
}

.home-status-card {
    padding: 1.25rem 1.3rem;
    border: 1px solid rgba(255, 255, 255, .23);
    border-radius: 19px;
    background: linear-gradient(145deg, rgba(255, 255, 255, .16), rgba(255, 255, 255, .08));
    backdrop-filter: blur(12px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12), 0 18px 38px rgba(15, 23, 42, .12);
}

.home-status-kicker {
    display: flex;
    align-items: center;
    gap: .4rem;
    color: #dbeafe;
    font-size: .76rem;
    font-weight: 600;
}

.live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #6ee7b7;
    box-shadow: 0 0 0 4px rgba(110, 231, 183, .15);
}

.home-status-main {
    display: flex;
    align-items: baseline;
    gap: .4rem;
    margin: .55rem 0 .65rem;
}

.home-status-main strong {
    font-size: 3.2rem;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    letter-spacing: -.03em;
}

.home-status-main span {
    color: #dbeafe;
    font-size: .86rem;
}

.home-progress {
    height: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, .17);
}

.home-progress i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #86efac, #67e8f9);
}

.home-status-foot {
    display: flex;
    justify-content: space-between;
    gap: .5rem;
    margin-top: .55rem;
    color: #dbeafe;
    font-size: .72rem;
}

.portal-section {
    margin-bottom: 2.25rem;
}

.section-heading,
.resource-group-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.section-heading {
    padding-bottom: .7rem;
    border-bottom: 1px solid rgba(226, 232, 240, .85);
}

.section-heading h2,
.resource-group-head h2 {
    margin: 0;
}

.section-heading a {
    padding: .34rem .7rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    color: var(--ink-soft);
    font-size: .78rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.section-heading a:hover {
    border-color: #c7d2fe;
    color: var(--primary);
    text-decoration: none;
}

.section-heading h2 {
    font-size: 1.35rem;
    letter-spacing: -.02em;
}

.section-metrics {
    display: flex;
    align-items: center;
    gap: .45rem;
    flex-wrap: wrap;
}

.section-metric {
    padding: .3rem .62rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .72rem;
}

.section-metric strong {
    margin-right: .15rem;
    font-size: .86rem;
    font-variant-numeric: tabular-nums;
}

.section-metric.is-free {
    border-color: #bbf7d0;
    background: var(--free-soft);
    color: #15803d;
}

.section-metric.is-taken {
    border-color: #fecdd3;
    background: var(--taken-soft);
    color: #be123c;
}

.section-note {
    color: var(--ink-soft);
    font-size: .76rem;
}

.subject-group + .subject-group {
    margin-top: 1.2rem;
}

.subject-group-head {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .6rem;
}

.subject-group-head > span:last-child {
    color: var(--ink-soft);
    font-size: .72rem;
}

.subject-pill {
    display: inline-flex;
    align-items: center;
    min-width: 52px;
    justify-content: center;
    padding: .2rem .65rem;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: .78rem;
    font-weight: 700;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 1rem;
}

.admin-resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-resource-grid .resource-card.has-cover {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: start;
    gap: .8rem;
    min-height: 0;
    padding: .9rem;
}

.admin-resource-grid .resource-cover {
    width: 140px;
    height: auto;
    aspect-ratio: 16 / 9;
    border: 0;
    border-radius: 9px;
}

.admin-resource-grid .resource-card-body {
    padding: 0;
}

.admin-resource-grid .resource-card h3 {
    margin-top: .45rem;
}

.admin-resource-grid .resource-card p {
    margin-bottom: .45rem;
}

.resource-card {
    --resource-accent: var(--primary);
    --resource-soft: var(--primary-soft);
    display: flex;
    flex-direction: column;
    min-height: 190px;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-top: 3px solid var(--resource-accent);
    border-radius: 14px;
    background: #fff;
    color: inherit;
    box-shadow: var(--shadow-sm);
    transition: transform .16s, box-shadow .16s, border-color .16s;
}

.resource-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 1rem 1.05rem;
}

.resource-cover {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eef2f7;
    border-bottom: 1px solid var(--line);
}

.resource-cover img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .25s ease;
}

.resource-card:hover .resource-cover img {
    transform: scale(1.03);
}

.resource-card:nth-child(3n+2) {
    --resource-accent: var(--afternoon);
    --resource-soft: var(--afternoon-soft);
}

.resource-card:nth-child(3n+3) {
    --resource-accent: var(--evening);
    --resource-soft: var(--evening-soft);
}

.resource-card:hover {
    transform: translateY(-3px);
    border-color: var(--resource-accent);
    box-shadow: 0 14px 30px rgba(15, 23, 42, .1);
    text-decoration: none;
}

.resource-category {
    align-self: flex-start;
    padding: .12rem .48rem;
    border-radius: 999px;
    background: var(--resource-soft, var(--primary-soft));
    color: var(--resource-accent, var(--primary));
    font-size: .68rem;
    font-weight: 700;
}

.resource-tags,
.review-title-row {
    display: flex;
    align-items: center;
    gap: .3rem;
    flex-wrap: wrap;
}

.resource-taxonomy {
    padding: .12rem .42rem;
    border-radius: 999px;
    background: #f1f5f9;
    color: var(--ink-soft);
    font-size: .66rem;
    font-weight: 600;
}

.resource-card h3 {
    margin: .6rem 0 .35rem;
    font-size: 1.02rem;
}

.resource-card p {
    flex: 1;
    margin-bottom: .65rem;
    color: var(--ink-soft);
    font-size: .82rem;
    line-height: 1.55;
}

.resource-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding-top: .55rem;
    border-top: 1px dashed var(--line);
    color: var(--ink-soft);
    font-size: .7rem;
}

.resource-card-foot strong {
    color: var(--resource-accent);
    font-weight: 700;
}

.day-overview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.day-desk {
    padding: 1rem 1.05rem;
    border: 1px solid var(--line);
    border-top: 4px solid var(--desk-color, var(--line));
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.day-desk-head {
    display: flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: .75rem;
}

.day-desk-seats {
    margin-left: auto;
    color: var(--ink-soft);
    font-size: .72rem;
}

.day-seat-list {
    display: grid;
    gap: .5rem;
}

.day-seat-row {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    align-items: center;
    gap: .55rem;
}

.day-slot-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .35rem;
}

.day-slot {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .02rem;
    min-height: 46px;
    padding: .3rem .2rem;
    border: 1px solid transparent;
    border-radius: 9px;
    color: inherit;
    text-align: center;
}

.day-slot strong {
    font-size: .75rem;
}

.day-slot small {
    font-size: .65rem;
}

.day-slot.is-free {
    background: var(--free-soft);
    border-color: #bbf7d0;
    color: #15803d;
}

a.day-slot.is-free:hover {
    border-color: var(--free);
    background: #dcfce7;
    text-decoration: none;
    transform: translateY(-1px);
}

.day-slot.is-taken {
    background: var(--taken-soft);
    border-color: #fecdd3;
    color: #be123c;
}

.day-slot.is-past,
.day-slot.is-off {
    background: var(--off-soft);
    border-color: var(--line);
    color: var(--off);
}

.day-slot.is-off {
    background: repeating-linear-gradient(45deg, #f1f5f9, #f1f5f9 6px, #e9eef5 6px, #e9eef5 12px);
}

.home-legend {
    margin: .85rem 0 0;
}

.home-legend .legend-note {
    margin-left: auto;
    color: #94a3b8;
    font-size: .72rem;
}

.portal-page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.portal-page-head h1 {
    margin-bottom: .2rem;
    font-size: 1.9rem;
}

.portal-page-head p {
    margin: 0;
}

.portal-count {
    padding: .32rem .7rem;
    border: 1px solid #dbe4ff;
    border-radius: 999px;
    background: #fff;
    color: var(--primary);
    font-size: .76rem;
    font-weight: 600;
}

.resources-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 1.25rem;
    align-items: start;
}

.resources-main {
    min-width: 0;
}

.resources-main .resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.resource-group {
    margin-bottom: 1.5rem;
}

.resource-group-head span {
    color: var(--ink-soft);
    font-size: .74rem;
}

.recommend-panel {
    position: sticky;
    top: 84px;
    display: grid;
    gap: 1rem;
}

.recommend-role-list {
    display: grid;
    gap: .45rem;
    margin: .9rem 0 1rem;
    padding: 0;
    list-style: none;
}

.recommend-role-list li {
    display: flex;
    align-items: baseline;
    gap: .5rem;
    padding: .45rem .55rem;
    border-radius: 9px;
    background: #f8fafc;
}

.recommend-role-list strong {
    color: var(--primary);
    font-size: .82rem;
}

.recommend-role-list span {
    color: var(--ink-soft);
    font-size: .75rem;
}

.recommend-admin-note {
    margin: .75rem 0 0;
    text-align: center;
}

.recommend-card h2 {
    margin-bottom: .25rem;
}

.recommend-form .field {
    margin-bottom: .8rem;
}

.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .8rem;
}

.form-grid-2 .field {
    min-width: 0;
}

.recommend-form textarea {
    min-height: 92px;
    resize: vertical;
}

.my-recommend-list {
    display: grid;
    gap: .5rem;
}

.my-recommend-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .55rem .65rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #f8fafc;
}

.my-recommend-item div {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.my-recommend-item strong {
    overflow: hidden;
    font-size: .82rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tag-pending {
    background: #fffbeb;
    color: #b45309;
}

.rules-head {
    max-width: 760px;
}

.rules-layout {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.rules-toc {
    position: sticky;
    top: 84px;
    display: grid;
    gap: .35rem;
}

.rules-toc strong {
    margin-bottom: .3rem;
    color: var(--ink);
}

.rules-toc a {
    padding: .35rem .55rem;
    border-radius: 8px;
    color: var(--ink-soft);
    font-size: .82rem;
}

.rules-toc a:hover {
    background: var(--primary-soft);
    color: var(--primary);
    text-decoration: none;
}

.rules-content {
    display: grid;
    gap: 1rem;
}

.rule-card {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 1rem;
    padding: 1.3rem 1.4rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.rule-number {
    color: #c7d2fe;
    font-size: 1.9rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.04em;
}

.rule-card h2 {
    margin-bottom: .55rem;
}

.rule-card ul {
    display: grid;
    gap: .38rem;
    margin: 0;
    padding-left: 1.1rem;
    color: #475569;
    font-size: .9rem;
}

.review-list {
    display: grid;
    gap: .8rem;
}

.review-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fbfcff;
}

.review-title-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}

.review-title-row h3 {
    margin: 0;
    font-size: 1rem;
}

.review-content p {
    margin: .5rem 0;
    color: var(--ink-soft);
    font-size: .84rem;
}

.review-url {
    display: block;
    max-width: 100%;
    margin-bottom: .3rem;
    overflow-wrap: anywhere;
    font-size: .78rem;
}

.review-form {
    display: grid;
    gap: .5rem;
    align-content: center;
}

.review-form input[type="text"] {
    font-size: .82rem;
}

.review-actions {
    display: flex;
    gap: .45rem;
}

.reviewed-resource-table {
    min-width: 720px;
}

.recommend-page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 1.25rem;
    align-items: start;
}

.recommend-guide {
    position: sticky;
    top: 84px;
}

.role-choice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .5rem;
}

.role-choice {
    position: relative;
    margin: 0;
    cursor: pointer;
}

.role-choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.role-choice > span {
    display: flex;
    flex-direction: column;
    gap: .18rem;
    height: 100%;
    padding: .75rem .7rem;
    border: 1px solid #d7dbe3;
    border-radius: 11px;
    background: #fff;
    transition: all .15s;
}

.role-choice strong {
    color: var(--ink);
    font-size: .9rem;
}

.role-choice small {
    color: var(--ink-soft);
    font-size: .68rem;
    line-height: 1.4;
}

.role-choice:hover > span {
    border-color: #b9c2d4;
}

.role-choice input:checked + span {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 0 3px rgba(59, 91, 219, .12);
}

.role-choice input:focus-visible + span {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.cover-upload {
    position: relative;
    display: flex;
    align-items: center;
    gap: .55rem;
    flex-wrap: wrap;
    padding: .65rem .75rem;
    border: 1px dashed #c7d2fe;
    border-radius: 10px;
    background: #f8faff;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}

.cover-upload:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.cover-upload input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.cover-upload-button {
    padding: .32rem .65rem;
    border: 1px solid #c7d2fe;
    border-radius: 8px;
    background: #fff;
    color: var(--primary);
    font-size: .78rem;
    font-weight: 600;
}

.cover-upload-hint {
    color: var(--ink-soft);
    font-size: .7rem;
}

.cover-preview {
    display: block;
    max-width: 320px;
    margin-top: .65rem;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #f8fafc;
}

.cover-preview[hidden] {
    display: none;
}

.cover-preview img {
    display: block;
    width: 100%;
    max-height: 190px;
    object-fit: cover;
}

.guide-steps {
    display: grid;
    gap: .75rem;
    margin: .8rem 0;
    padding: 0;
    list-style: none;
    counter-reset: guide;
}

.guide-steps li {
    position: relative;
    padding-left: 2rem;
    counter-increment: guide;
}

.guide-steps li::before {
    position: absolute;
    top: .05rem;
    left: 0;
    display: grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    content: counter(guide);
    font-size: .7rem;
    font-weight: 700;
}

.guide-steps li {
    display: flex;
    flex-direction: column;
}

.guide-steps strong {
    font-size: .86rem;
}

.guide-steps span {
    color: var(--ink-soft);
    font-size: .74rem;
}

.admin-resource-actions {
    display: flex;
    align-items: center;
    gap: .55rem;
}

.admin-recommend-card {
    max-width: 760px;
}

@media (max-width: 1000px) {
    .home-hero {
        grid-template-columns: 1fr;
        padding: 2rem;
    }
    .home-status-card {
        max-width: 420px;
    }
    .resources-layout,
    .rules-layout,
    .recommend-page-layout {
        grid-template-columns: 1fr;
    }
    .recommend-panel,
    .recommend-guide,
    .rules-toc {
        position: static;
    }
    .rules-toc {
        display: flex;
        flex-wrap: wrap;
    }
    .rules-toc strong {
        width: 100%;
    }
    .resource-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .day-overview-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .topbar-inner {
        gap: .55rem;
        padding: .55rem .9rem .6rem;
    }
    .brand-text small {
        display: none;
    }
    .nav.portal-nav {
        order: 3;
        width: 100%;
        margin: .1rem 0 0;
        padding: .26rem;
        justify-content: flex-start;
        overflow-x: auto;
        border-radius: 14px;
        scrollbar-width: none;
    }
    .nav.portal-nav::-webkit-scrollbar {
        display: none;
    }
    .portal-nav a {
        flex: 0 0 auto;
        padding: .4rem .72rem;
        font-size: .8rem;
    }
    .portal-nav .nav-booking {
        margin-left: .05rem;
    }
    .home-hero {
        padding: 1.5rem 1.25rem;
        border-radius: 18px;
    }
    .home-hero h1 {
        font-size: 2rem;
    }
    .home-actions {
        flex-direction: column;
    }
    .home-actions .btn {
        width: 100%;
    }
    .home-status-card {
        max-width: none;
    }
    .home-hero-meta {
        gap: .35rem;
    }
    .home-hero-meta span {
        font-size: .65rem;
    }
    .section-heading {
        align-items: flex-start;
    }
    .section-heading h2 {
        font-size: 1.18rem;
    }
    .home-legend .legend-note {
        width: 100%;
        margin-left: 0;
    }
    .resource-grid,
    .resources-main .resource-grid,
    .admin-resource-grid {
        grid-template-columns: 1fr;
    }
    .admin-resource-grid .resource-card.has-cover {
        grid-template-columns: 110px minmax(0, 1fr);
        gap: .65rem;
        padding: .75rem;
    }
    .admin-resource-grid .resource-cover {
        width: 110px;
    }
    .day-seat-row {
        grid-template-columns: 45px minmax(0, 1fr);
    }
    .day-slot strong {
        font-size: .68rem;
    }
    .review-item {
        grid-template-columns: 1fr;
    }
    .role-choice-grid {
        grid-template-columns: 1fr;
    }
    .form-grid-2 {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .rule-card {
        grid-template-columns: 1fr;
        gap: .35rem;
    }
    .rule-number {
        font-size: 1.3rem;
    }
}