:root {
    --primary: #e63946;
    --primary-hover: #c1121f;
    --secondary: #1d3557;
    --background: #0d1117;
    --surface: #161b22;
    --surface-hover: #21262d;
    --border: #30363d;
    --text: #f0f6fc;
    --text-muted: #8b949e;
    --success: #238636;
    --success-hover: #2ea043;
    --warning: #d29922;
    --error: #f85149;
    --error-hover: #da3633;

    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-image {
    max-height: 40px;
    max-width: 150px;
    object-fit: contain;
}

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem 0;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-top: -1rem;
    margin-bottom: 1.5rem;
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    color: white;
}

.btn-secondary {
    background: var(--surface-hover);
    color: var(--text);
    border: 1px solid var(--border);
}

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

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: var(--success-hover);
    color: white;
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover {
    background: var(--error-hover);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b949e' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    accent-color: var(--primary);
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

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

.table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background: var(--surface-hover);
}

.table-centered td,
.table-centered th {
    text-align: center;
}

/* Standings Table */
.standings-table .rank {
    font-weight: 700;
    width: 3rem;
}

.standings-table .rank-1 {
    color: gold;
}

.standings-table .rank-2 {
    color: silver;
}

.standings-table .rank-3 {
    color: #cd7f32;
}

.standings-table .player-name {
    font-weight: 600;
}

.standings-table .stats {
    color: var(--text-muted);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
}

.badge-primary {
    background: var(--primary);
    color: white;
}

.badge-success {
    background: var(--success);
    color: white;
}

.badge-warning {
    background: var(--warning);
    color: black;
}

.badge-muted {
    background: var(--surface-hover);
    color: var(--text-muted);
}

.badge-live {
    background: var(--error);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Grid */
.grid {
    display: grid;
    gap: 1rem;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Player Card */
.player-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.player-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--surface-hover);
}

.player-avatar-placeholder {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
}

.player-info {
    flex: 1;
}

.player-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.player-nickname {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Match Card */
.match-card {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    gap: 1rem;
}

.match-player {
    flex: 1;
    text-align: center;
}

.match-player.winner {
    color: var(--success);
}

.match-score {
    font-size: 1.5rem;
    font-weight: 700;
    padding: 0 1rem;
    min-width: 80px;
    text-align: center;
}

.match-vs {
    color: var(--text-muted);
}

/* Scoring UI */
.scoring-board {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.scoring-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.scoring-player {
    text-align: center;
    flex: 1;
}

.scoring-player.active {
    color: var(--primary);
}

.scoring-player-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.scoring-player-score {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    margin: 0.5rem 0;
}

.scoring-player-mode {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.scoring-last-visit {
    font-size: 0.875rem;
    color: var(--warning);
    font-weight: 600;
    min-height: 1.25rem;
    margin-top: 0.25rem;
}

.scoring-divider {
    width: 2px;
    height: 100px;
    background: var(--border);
    margin: 0 1rem;
}

/* Dart Input */
.dart-input {
    margin-top: 1.5rem;
}

.dart-input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.dart-multiplier {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.dart-multiplier .btn {
    flex: 1;
}

.dart-multiplier .btn.active {
    background: var(--primary);
    color: white;
}

.dart-numbers {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.dart-number {
    padding: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--surface-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.dart-number:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.dart-number:active {
    transform: scale(0.95);
}

.dart-number.miss {
    background: var(--error);
    border-color: var(--error);
}

.dart-number.bull {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

/* Current Throw Display */
.current-throw {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.throw-dart {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-hover);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1.25rem;
    font-weight: 600;
}

.throw-dart.filled {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.throw-dart.active {
    border-color: var(--warning);
    animation: pulse 1s infinite;
}

.throw-total {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    min-width: 80px;
}

/* Checkout Suggestion */
.checkout-suggestion {
    background: var(--success);
    color: white;
    padding: 1rem;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 1rem;
}

.checkout-suggestion-title {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.checkout-suggestion-path {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.alert-success {
    background: rgba(35, 134, 54, 0.2);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(248, 81, 73, 0.2);
    border: 1px solid var(--error);
    color: var(--error);
}

.alert-warning {
    background: rgba(210, 153, 34, 0.2);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* Playoffs Bracket */
.bracket {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 1rem;
}

.bracket-round {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 250px;
}

.bracket-round-title {
    text-align: center;
    font-weight: 600;
    color: var(--text-muted);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.bracket-match {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.bracket-match-player {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.bracket-match-player:last-child {
    border-bottom: none;
}

.bracket-match-player.winner {
    background: rgba(35, 134, 54, 0.1);
    color: var(--success);
}

.bracket-match-player.tbd {
    color: var(--text-muted);
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: auto;
}

/* Mobile Navigation */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .nav.open {
        display: flex;
    }

    .nav-link {
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border);
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .header-content {
        position: relative;
    }

    .dart-numbers {
        grid-template-columns: repeat(4, 1fr);
    }

    .scoring-player-score {
        font-size: 2rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { justify-content: center; }
.items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

.hidden { display: none; }

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}