:root {
    --bg: #f6f8fb;
    --bg-soft: #eef2f7;
    --bg-glow: #d9efec;
    --surface: #ffffff;
    --surface-2: #f7f9fc;
    --surface-3: #eef3f8;
    --text: #0f172a;
    --muted: #5b6b7f;
    --primary: #0f766e;
    --primary-strong: #0b5e58;
    --accent: #e6f4f3;
    --danger: #b42318;
    --danger-soft: #fee4e2;
    --border: #d8e0ea;
    --ring: rgba(15, 118, 110, 0.25);
    --shadow-sm: 0 4px 14px rgba(2, 6, 23, 0.06);
    --shadow-md: 0 12px 30px rgba(2, 6, 23, 0.14);
    --radius: 12px;
    --sidebar-bg: rgba(255, 255, 255, 0.92);
    --sidebar-border: #d8e0ea;
    --input-bg: #ffffff;
    --table-head-bg: #eef3f8;
    --table-row-hover: #f6f9fc;
    --card-grad-start: #ffffff;
    --card-grad-end: #f7f9fc;
    --btn-primary-text: #ffffff;
    --danger-border: #f6b9b4;
    --alert-success-bg: #dcf7ec;
    --alert-success-text: #106543;
    --alert-success-border: #9edfc0;
    --alert-error-bg: #fde9e9;
    --alert-error-text: #8b2222;
    --alert-error-border: #f5c4c4;
    color-scheme: light;
}

[data-theme="dark"] {
    --bg: #0d1117;
    --bg-soft: #161b22;
    --bg-glow: #123038;
    --surface: #161b22;
    --surface-2: #1c2330;
    --surface-3: #212a36;
    --text: #c9d1d9;
    --muted: #8b949e;
    --primary: #2ea8a2;
    --primary-strong: #1f7f7a;
    --accent: #162a2d;
    --danger: #f85149;
    --danger-soft: #2b1b1f;
    --border: #30363d;
    --ring: rgba(46, 168, 162, 0.28);
    --shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 16px 36px rgba(0, 0, 0, 0.45);
    --sidebar-bg: rgba(13, 17, 23, 0.95);
    --sidebar-border: #30363d;
    --input-bg: #0f141b;
    --table-head-bg: #212a36;
    --table-row-hover: #1d2430;
    --card-grad-start: #161b22;
    --card-grad-end: #1c2330;
    --btn-primary-text: #e7f9f8;
    --danger-border: #8f3a42;
    --alert-success-bg: #123127;
    --alert-success-text: #7be0ac;
    --alert-success-border: #27533f;
    --alert-error-bg: #361e22;
    --alert-error-text: #ffb4af;
    --alert-error-border: #5b2d35;
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    background: radial-gradient(1100px 460px at 0% -10%, var(--bg-glow) 0%, transparent 65%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
    color: var(--text);
    font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
    line-height: 1.4;
    transition: background 0.25s ease, color 0.2s ease;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-strong);
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 20;
    width: 250px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 18px 14px;
    backdrop-filter: blur(8px);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
}

.brand h1 {
    margin: 0;
    font-size: 22px;
    letter-spacing: 0.2px;
}

.brand small {
    color: var(--muted);
    font-size: 12px;
}

.brand-identity {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-photo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

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

.nav-link {
    display: block;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
}

.nav-link:hover {
    background: var(--surface-2);
}

.nav-link.active {
    background: var(--accent);
    border-color: var(--primary);
    color: var(--primary-strong);
}

.theme-switcher {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: auto;
}

.theme-switcher label {
    font-size: 12px;
    color: var(--muted);
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 20px;
}

.with-sidebar {
    margin-left: 250px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.card {
    background: linear-gradient(160deg, var(--card-grad-start) 0%, var(--card-grad-end) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card h3 {
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
}

.card p {
    margin: 0;
    font-size: 30px;
    font-weight: 700;
}

section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    animation: riseIn 0.28s ease both;
}

h2 {
    margin: 0 0 10px;
    font-size: 20px;
}

.muted {
    color: var(--muted);
}

.grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    align-items: end;
}

label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
    color: var(--text);
}

input,
select,
button {
    border: 1px solid var(--border);
    border-radius: 9px;
    font-size: 14px;
    padding: 9px 10px;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

input[type="date"],
input[type="time"],
input[type="month"],
select,
option {
    color-scheme: inherit;
}

option {
    background: var(--input-bg);
    color: var(--text);
}

[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] input[type="time"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] input[type="month"]::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(1.15);
    opacity: 0.9;
}

input:focus,
select:focus,
button:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--ring);
}

.checkbox-label {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
}

.actions-row {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 8px;
}

.btn-primary,
.btn-secondary,
.btn-danger {
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
    padding: 9px 12px;
}

.btn-primary {
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-strong) 100%);
    border-color: var(--primary-strong);
    color: var(--btn-primary-text);
}

.btn-primary:hover {
    filter: brightness(1.03);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--surface-2);
}

.btn-danger {
    background: var(--danger-soft);
    color: var(--danger);
    border-color: var(--danger-border);
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

th,
td {
    border-bottom: 1px solid var(--border);
    padding: 9px;
    text-align: left;
    vertical-align: top;
    background: var(--surface);
    color: var(--text);
}

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

th {
    background: var(--table-head-bg);
    color: var(--text);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

tbody tr:hover td {
    background: var(--table-row-hover);
}

.inline-form {
    display: inline;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.table-action-form {
    margin: 0;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface-2);
    color: var(--text);
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.action-btn:hover {
    background: var(--surface-3);
    transform: translateY(-1px);
}

.action-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--ring);
}

.action-btn.action-primary {
    background: var(--accent);
    border-color: var(--primary);
    color: var(--primary-strong);
}

.action-btn.action-secondary {
    background: var(--surface);
}

.action-btn.action-ghost {
    background: transparent;
}

.action-btn.action-danger {
    background: var(--danger-soft);
    border-color: var(--danger);
    color: var(--danger);
}

.link-btn {
    border: none;
    background: transparent;
    color: var(--danger);
    cursor: pointer;
    padding: 0;
}

.alert {
    padding: 10px 12px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.alert.success {
    background: var(--alert-success-bg);
    color: var(--alert-success-text);
    border: 1px solid var(--alert-success-border);
}

.alert.error {
    background: var(--alert-error-bg);
    color: var(--alert-error-text);
    border: 1px solid var(--alert-error-border);
}

.hidden {
    display: none;
}

.row-inline {
    display: flex;
    gap: 8px;
    align-items: center;
}

.print-event-block {
    background: var(--surface);
}

.team-block {
    margin-top: 16px;
}

@keyframes riseIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 900px) {
    .sidebar {
        position: static;
        width: auto;
        border-right: none;
        border-bottom: 1px solid var(--sidebar-border);
    }

    .container {
        padding: 14px;
    }

    .with-sidebar {
        margin-left: 0;
    }

    .main-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

@media print {
    body {
        background: #ffffff;
    }

    .no-print,
    .sidebar,
    .alert {
        display: none !important;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    section,
    .print-event-block,
    .team-block {
        border: none;
        box-shadow: none;
        margin: 0 0 12px;
        padding: 0;
        animation: none;
    }

    table,
    th,
    td {
        border: 1px solid #000;
        border-collapse: collapse;
    }

    th,
    td {
        background: #fff !important;
        color: #000 !important;
    }
}