:root {
    --primary: #ff6b35;
    --primary-dark: #e55a2b;
    --secondary: #004e89;
    --accent: #00d4aa;
    --gold: #ffd700;
    --bg-dark: #0a0e17;
    --bg-card: #131a2b;
    --bg-input: #1a2332;
    --text-primary: #ffffff;
    --text-secondary: #8892a6;
    --border: #2a3548;
    --glow: rgba(255, 107, 53, 0.4);
    --winner: #00d4aa;
    --winner-glow: rgba(0, 212, 170, 0.4);
    --danger: #dc3545;
    --warning: #ffc107;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: var(--bg-dark);
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: auto;
}

.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(255, 107, 53, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 212, 170, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 78, 137, 0.1) 0%, transparent 70%);
}

.grid-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background-image: 
        linear-gradient(rgba(255, 107, 53, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 107, 53, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1600px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header-title {
    text-align: left;
}

.header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--gold), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 5px;
}

.header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.admin-status {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.admin-badge.active {
    background: linear-gradient(135deg, var(--accent), #00a080);
    color: var(--bg-dark);
}

.admin-badge.inactive {
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), #003d6d);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 78, 137, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent), #00a080);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--winner-glow);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #b02a37);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(220, 53, 69, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #e0a800);
    color: var(--bg-dark);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 193, 7, 0.4);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.7rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Tournament List */
.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.list-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tournament-count {
    background: var(--bg-input);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.tournament-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.tournament-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tournament-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.tournament-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.tournament-info {
    flex: 1;
}

.tournament-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.tournament-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.tournament-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tournament-actions {
    display: flex;
    gap: 5px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.tournament-card:hover .tournament-actions {
    opacity: 1;
}

.tournament-action-btn {
    background: var(--bg-input);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

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

.tournament-action-btn.delete:hover {
    background: var(--danger);
}

.tournament-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.tournament-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tournament-stat span {
    color: var(--accent);
    font-weight: 600;
}

.tournament-status {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-ongoing {
    background: rgba(255, 107, 53, 0.2);
    color: var(--primary);
}

.status-completed {
    background: rgba(0, 212, 170, 0.2);
    color: var(--accent);
}

.status-not-started {
    background: rgba(255, 193, 7, 0.2);
    color: var(--warning);
}

/* Add Tournament Card */
.add-tournament-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    border: 2px dashed var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 180px;
}

.add-tournament-card:hover {
    border-color: var(--primary);
    background: rgba(255, 107, 53, 0.05);
}

.add-tournament-card .icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    opacity: 0.5;
}

.add-tournament-card .text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Tournament Detail */
.tournament-detail {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid var(--border);
    margin-bottom: 30px;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.detail-info {
    flex: 1;
}

.detail-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--gold);
    margin-bottom: 5px;
}

.detail-meta {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.detail-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 10px;
    padding: 10px;
    background: var(--bg-input);
    border-radius: 8px;
}

.detail-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Input Section */
.input-section {
    background: var(--bg-input);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    width: 3px;
    height: 16px;
    background: var(--primary);
    border-radius: 2px;
}

.name-input {
    width: 100%;
    height: 150px;
    background: var(--bg-dark);
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: 'Noto Sans SC', sans-serif;
    resize: none;
    transition: all 0.3s ease;
    line-height: 1.7;
}

.name-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--glow);
}

.name-input::placeholder {
    color: var(--text-secondary);
}

.input-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.info-item {
    background: var(--bg-input);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.info-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
}

/* Bracket Container */
.bracket-container {
    background: var(--bg-input);
    border-radius: 16px;
    padding: 25px;
    overflow-x: auto;
    min-height: 300px;
}

.bracket-title {
    text-align: center;
    margin-bottom: 25px;
}

.bracket-title h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* Bracket */
.bracket {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    min-width: max-content;
    padding: 20px;
}

.round {
    display: flex;
    flex-direction: column;
    min-width: 200px;
    position: relative;
}

.round-title {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
    padding: 6px 12px;
    background: var(--bg-dark);
    border-radius: 15px;
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
}

.matches-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    flex: 1;
    gap: 15px;
}

/* Match Box */
.match-box {
    background: var(--bg-dark);
    border-radius: 10px;
    border: 2px solid var(--border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.match-box:hover {
    border-color: var(--primary);
}

.match-box.completed {
    border-color: var(--accent);
}

.match-box.bye-box {
    border-color: var(--gold);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), var(--bg-dark));
}

.match-header {
    background: var(--bg-card);
    padding: 5px 10px;
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    justify-content: space-between;
}

.player-row {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    transition: all 0.2s ease;
}

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

.player-row.clickable {
    cursor: pointer;
}

.player-row.clickable:hover {
    background: rgba(255, 107, 53, 0.1);
}

.player-row.winner {
    background: linear-gradient(90deg, rgba(0, 212, 170, 0.2), transparent);
}

.player-row.winner .player-name {
    color: var(--accent);
    font-weight: 700;
}

.player-row.bye {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.15), transparent);
}

.player-row.bye .player-name {
    color: var(--gold);
    font-weight: 600;
}

.player-name {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.score-input {
    width: 40px;
    padding: 3px 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 0.85rem;
    text-align: center;
    font-family: 'Orbitron', sans-serif;
}

.score-input:focus {
    outline: none;
    border-color: var(--primary);
}

.score-display {
    padding: 3px 8px;
    background: var(--bg-card);
    border-radius: 5px;
    font-size: 0.85rem;
    font-family: 'Orbitron', sans-serif;
    color: var(--text-primary);
    min-width: 35px;
    text-align: center;
}

.winner-badge {
    background: var(--accent);
    color: var(--bg-dark);
    padding: 2px 6px;
    border-radius: 8px;
    font-size: 0.6rem;
    font-weight: 700;
    margin-left: 6px;
}

.bye-badge {
    background: var(--gold);
    color: var(--bg-dark);
    padding: 2px 6px;
    border-radius: 8px;
    font-size: 0.6rem;
    font-weight: 700;
    margin-left: 6px;
}

.connector {
    width: 25px;
}

/* Champion Display */
.champion-box {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 107, 53, 0.1));
    border: 2px solid var(--gold);
    border-radius: 14px;
    padding: 18px;
    text-align: center;
    min-width: 160px;
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
}

.champion-trophy {
    font-size: 2rem;
    margin-bottom: 8px;
}

.champion-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.champion-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--gold);
}

.champion-empty {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.9rem;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.3;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--border);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

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

.form-textarea {
    min-height: 80px;
    resize: vertical;
    font-family: 'Noto Sans SC', sans-serif;
}

.modal-hint {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.modal-buttons .btn {
    flex: 1;
}

.confirm-message {
    text-align: center;
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.confirm-warning {
    color: var(--danger);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 20px;
}

/* Back Button */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 20px;
    transition: color 0.2s ease;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Round Reset Button */
.round-reset-btn {
    margin-top: 10px;
    font-size: 0.75rem;
    padding: 6px 12px;
    opacity: 0.7;
    transition: all 0.2s ease;
}

.round-reset-btn:hover {
    opacity: 1;
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .header-title {
        text-align: center;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .tournament-list {
        grid-template-columns: 1fr;
    }
}