/* OpenScores - CSS Custom Properties for Dark/Light Theme */

:root {
    /* Light theme (default) */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #f1f3f5;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border: #dee2e6;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: #dbeafe;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;

    /* Score ring colors */
    --ring-10: #ffd700;
    --ring-9: #ff6b35;
    --ring-8: #e63946;
    --ring-7: #457b9d;
    --ring-low: #6c757d;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-light: #1e3a5f;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

/* Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { overflow-x: hidden; width: 100%; }

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

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Nav */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    position: relative;
}
.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.navbar-brand span { color: var(--accent); }
.nav-links { 
    display: flex; 
    gap: 8px; 
    align-items: center; 
}
.nav-links a {
    padding: 8px 12px;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition);
    white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
    background: var(--accent-light);
    color: var(--accent);
}
.nav-username {
    padding: 8px 12px !important;
    font-size: 0.85rem !important;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    gap: 3px;
}
.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition);
}
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Theme toggle */
.theme-toggle {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 10px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition);
    color: var(--text-primary);
}
.theme-toggle:hover { background: var(--accent-light); }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); }
.card-header {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.form-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border var(--transition);
}
.form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Grid */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* Score display */
.score-big {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.score-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.score-ring {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    color: #fff;
}
.score-ring.s10 { background: var(--ring-10); color: #000; }
.score-ring.s9 { background: var(--ring-9); }
.score-ring.s8 { background: var(--ring-8); }
.score-ring.s7 { background: var(--ring-7); }
.score-ring.low { background: var(--ring-low); }

/* Upload area */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-light);
}
.upload-zone-icon { font-size: 3rem; margin-bottom: 12px; }
.upload-zone-text { color: var(--text-secondary); }

/* Stats */
.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
th {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
tr:hover { background: var(--bg-input); }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }
[data-theme="dark"] .alert-error { background: #450a0a; border-color: #7f1d1d; }
[data-theme="dark"] .alert-success { background: #052e16; border-color: #166534; }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 200;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

/* Pages (SPA-style) */
.page { display: none; padding: 24px 0; }
.page.active { display: block; }

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.hidden { display: none !important; }

/* Chart placeholder */
.chart-container {
    height: 200px;
    background: var(--bg-input);
    border-radius: var(--radius);
    display: flex;
    align-items: flex-end;
    padding: 16px;
    gap: 4px;
}
.chart-bar {
    flex: 1;
    background: var(--accent);
    border-radius: 4px 4px 0 0;
    min-height: 4px;
    transition: height var(--transition);
    position: relative;
}
.chart-bar:hover { opacity: 0.8; }

/* Account & Sessions Components */
.account-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.info-row:last-child {
    border-bottom: none;
}
.info-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.verification-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.verification-status.verified::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
}
.verification-status.unverified::before {
    content: "⚠";
    color: var(--warning);
}

.session-selector {
    display: flex;
    gap: 8px;
    align-items: stretch;
}
.session-selector select {
    flex: 1;
}

.session-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: all var(--transition);
    cursor: pointer;
}
.session-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.session-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.session-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.session-type {
    padding: 4px 8px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: capitalize;
}
.session-type.practice {
    background: var(--accent-light);
    color: var(--accent);
}
.session-type.competition {
    background: #fef3c7;
    color: #d97706;
}
[data-theme="dark"] .session-type.competition {
    background: #451a03;
    color: #fbbf24;
}
.session-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 12px;
    margin-top: 12px;
}
.session-stat {
    text-align: center;
}
.session-stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}
.session-stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        right: 0;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        padding: 16px;
        min-width: 200px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links a {
        padding: 12px 16px;
        text-align: center;
        border-radius: var(--radius);
    }
    
    .nav-username {
        text-align: center;
        padding: 8px 16px !important;
        border-top: 1px solid var(--border);
        margin-top: 8px;
        padding-top: 12px !important;
    }
    
    #btn-logout {
        margin-top: 8px;
        width: 100%;
    }
    
    #theme-toggle {
        margin-top: 8px;
        align-self: center;
    }
    
    .grid-2, .grid-3, .grid-4 { 
        grid-template-columns: 1fr; 
    }
    .score-big { 
        font-size: 2.5rem; 
    }
    .card { 
        padding: 16px; 
    }
    .upload-zone { 
        padding: 32px 16px; 
    }
    .session-selector {
        flex-direction: column;
        gap: 8px;
    }
    .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
}

/* Teams & Competitions */
.tab-nav {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 16px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 16px;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.team-tab {
    min-height: 200px;
}

.rank-badge {
    background: var(--accent-light);
    color: var(--accent);
    padding: 4px 8px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 32px;
    text-align: center;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

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

.info-label {
    font-weight: 500;
    color: var(--text-secondary);
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: var(--radius);
}

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

.badge-secondary {
    background: var(--bg-input);
    color: var(--text-secondary);
}

.badge-success {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success);
}

.badge-danger {
    background: rgba(220, 38, 38, 0.1);
    color: var(--danger);
}

.clickable {
    cursor: pointer;
    transition: var(--transition);
}

.clickable:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.max-height-300 {
    max-height: 300px;
}

.overflow-auto {
    overflow: auto;
}

.global-alert {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: 12px 16px;
    border-radius: var(--radius);
    z-index: 1001;
    transform: translateX(400px);
    transition: transform var(--transition);
    min-width: 250px;
    box-shadow: var(--shadow-lg);
}

.global-alert.show {
    transform: translateX(0);
}

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

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

.py-1 {
    padding-top: 4px;
    padding-bottom: 4px;
}

/* Print */
@media print {
    .navbar, .theme-toggle, .btn { display: none; }
    body { background: #fff; color: #000; }
}