/* ============================================
   RESET & BASE
   ============================================ */

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

:root {
    --primary-color: #4a90e2;
    --primary-dark: #357abd;
    --secondary-color: #50c878;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --success-color: #27ae60;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --border-color: #ddd;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    background-color: #f5f5f5;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-lg);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-menu a:hover {
    opacity: 0.8;
}

.user-info {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
}

.main-content {
    flex: 1;
    padding: 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.hero {
    text-align: center;
    padding: 3rem 0;
    background: white;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* ============================================
   FORMS
   ============================================ */

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
}

.form-inline {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-inline .form-group {
    flex: 1;
    min-width: 200px;
    margin-bottom: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.form-grid .full-width {
    grid-column: 1 / -1;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    text-align: center;
}

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

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

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

.btn-success:hover {
    background-color: #229954;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-vote {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.5rem 1.5rem;
}

.btn-vote:hover {
    background-color: #45b368;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.info-message {
    background-color: #d1ecf1;
    color: #0c5460;
    padding: 0.75rem;
    border-radius: 4px;
    margin: 1rem 0;
}

/* ============================================
   AUTH FORMS
   ============================================ */

.auth-form {
    max-width: 500px;
    margin: 3rem auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 1.5rem;
}

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

.mt-2 {
    margin-top: 1rem;
}

/* ============================================
   TOURNAMENTS GRID
   ============================================ */

.tournaments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tournament-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.tournament-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.tournament-card h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.tournament-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.tournament-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

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

.badge-completed {
    background-color: var(--text-light);
    color: white;
}

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

.theme-badge {
    background-color: var(--light-color);
    color: var(--text-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

/* ============================================
   TOURNAMENT PAGE
   ============================================ */

.tournament-header-page {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.tournament-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.tournament-description-large {
    font-size: 1.1rem;
    color: var(--text-light);
}

.round-header {
    margin-bottom: 2rem;
}

.round-header h2 {
    font-size: 2rem;
    text-align: center;
}

/* ============================================
   MATCHES
   ============================================ */

.matches-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.match-card {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.match-card.match-validated {
    border: 2px solid var(--success-color);
}

.match-winner-banner {
    background: linear-gradient(135deg, var(--success-color), #229954);
    color: white;
    padding: 1rem;
    text-align: center;
    font-weight: bold;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.match-items {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
}

.match-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.match-item.winner {
    background-color: #d4edda;
    border: 2px solid var(--success-color);
}

.item-image {
    width: 150px;
    height: 150px;
    margin: 0 auto 1rem;
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--light-color);
}

.item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--text-light);
}

.match-item h3 {
    margin-bottom: 0.5rem;
}

.item-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.vs-divider {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-light);
}

.vote-form {
    margin-top: 1rem;
}

.vote-badge {
    background-color: var(--success-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    display: inline-block;
    margin-top: 1rem;
}

.vote-count {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    display: inline-block;
    margin-top: 1rem;
    font-weight: bold;
}

/* ============================================
   ADMIN
   ============================================ */

.admin-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.admin-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
}

.admin-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.admin-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.admin-card p {
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.admin-card small {
    color: var(--text-light);
    font-size: 0.875rem;
}

.admin-section {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.admin-section h2 {
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-color);
}

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

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

.admin-table th {
    background-color: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}

.admin-table tr:hover {
    background-color: #f9f9f9;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-light);
}

/* ============================================
   ADMIN MATCHES
   ============================================ */

.matches-admin-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
}

.match-admin-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.match-header-admin {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.tournament-name {
    font-weight: bold;
    color: var(--primary-color);
}

.round-name {
    color: var(--text-light);
    font-size: 0.9rem;
}

.match-items-admin {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.match-item-admin {
    text-align: center;
}

.item-image-small {
    width: 80px;
    height: 80px;
    margin: 0 auto 0.5rem;
    border-radius: 4px;
    overflow: hidden;
    background-color: var(--light-color);
}

.item-image-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item-placeholder-small {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-light);
}

.match-item-admin h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.vote-count-admin {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    display: inline-block;
    font-size: 0.875rem;
    font-weight: bold;
}

.vs-divider-admin {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-light);
}

.match-footer-admin {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.total-votes {
    color: var(--text-light);
    font-weight: 500;
}

/* ============================================
   ITEMS GRID (Checkboxes)
   ============================================ */

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.item-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.item-checkbox:hover {
    border-color: var(--primary-color);
    background-color: #f0f7ff;
}

.item-checkbox input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.item-checkbox input[type="checkbox"]:checked + span {
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   UTILITY
   ============================================ */

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

.completed-message,
.draft-message {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
}

/* ============================================
   AUDIO PLAYER
   ============================================ */

.audio-player-wrapper {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.audio-player {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.audio-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
}

.audio-btn-play,
.audio-btn-restart {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.audio-btn-play:hover,
.audio-btn-restart:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.audio-btn-play.playing {
    background-color: var(--danger-color);
}

.audio-btn-play.playing::before {
    content: "⏸";
}

.audio-time {
    font-size: 0.875rem;
    color: var(--text-light);
    min-width: 100px;
    text-align: center;
}

.audio-volume-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.audio-volume-control span:first-child {
    font-size: 1.2rem;
}

.audio-volume {
    width: 150px;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.audio-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

.audio-volume::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
}

.volume-value {
    font-size: 0.875rem;
    color: var(--text-light);
    min-width: 45px;
    text-align: left;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .match-items {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .vs-divider {
        transform: rotate(90deg);
    }
    
    .match-items-admin {
        grid-template-columns: 1fr;
    }
    
    .vs-divider-admin {
        transform: rotate(90deg);
        justify-self: center;
    }
    
    .match-footer-admin {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-inline .form-group {
        margin-bottom: 1rem;
    }
    
    .tournaments-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-nav {
        grid-template-columns: 1fr;
    }
}