/* ==================== GLOBAL ==================== */
:root {
    --bg-primary: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2333;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-primary: #6C63FF;
    --accent-success: #2ea043;
    --accent-danger: #f85149;
    --accent-warning: #d29922;
    --accent-info: #58a6ff;
}

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

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

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

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

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

/* ==================== LOGIN PAGE ==================== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1c2333 100%);
    padding: 1rem;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    animation: loginFadeIn 0.5s ease;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo i {
    font-size: 3rem;
    color: var(--accent-primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.login-logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0.5rem;
    color: var(--text-primary);
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.login-card .form-control {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.login-card .form-control:focus {
    background-color: var(--bg-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.15);
}

.login-card .form-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.login-card .btn-primary {
    background: var(--accent-primary);
    border: none;
    padding: 0.75rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.login-card .btn-primary:hover {
    background: #5b54e0;
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(108, 99, 255, 0.3);
}

.login-card .input-group-text {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 10px 0 0 10px;
}

.login-card .input-group .form-control {
    border-radius: 0 10px 10px 0;
}

/* ==================== NAVBAR ==================== */
.navbar {
    background-color: var(--bg-card) !important;
    padding: 0.75rem 1rem;
}

.navbar-brand {
    font-size: 1.25rem;
}

/* ==================== COACH ATHLETE SWITCHER ==================== */
.athlete-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 1rem;
}

.athlete-switcher label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    white-space: nowrap;
}

.athlete-switcher .form-select {
    max-width: 300px;
    background-color: var(--bg-primary);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* ==================== STAT CARDS ==================== */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.2s ease;
}

.stat-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ==================== CATEGORY CARDS ==================== */
.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--cat-color);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--cat-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.category-card:hover::before {
    opacity: 1;
}

.category-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
    background: color-mix(in srgb, var(--cat-color) 15%, transparent);
    color: var(--cat-color);
    transition: all 0.3s ease;
}

.category-card:hover .category-card-icon {
    transform: scale(1.1);
    background: color-mix(in srgb, var(--cat-color) 25%, transparent);
}

.category-card-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.category-card-stats {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ==================== CATEGORY NAV ==================== */
.category-nav-scroll {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: thin;
}

.category-nav-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    white-space: nowrap;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.category-nav-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--cat-color);
}

.category-nav-btn.active {
    background: color-mix(in srgb, var(--cat-color) 20%, transparent);
    border-color: var(--cat-color);
    color: var(--cat-color);
    font-weight: 600;
}

/* ==================== CATEGORY HEADER ==================== */
.category-header-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==================== CHART CARDS ==================== */
.chart-card {
    transition: all 0.2s ease;
}

.chart-card:hover {
    border-color: var(--accent-primary) !important;
}

.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* ==================== SUPPLEMENT BADGES ==================== */
.supplement-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid;
    font-size: 0.875rem;
}

.supplement-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.supplement-badge-sm {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    border: 1px solid;
    font-size: 0.75rem;
}

.supplement-dot-sm {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    display: inline-block;
}

.supplement-dot-lg {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    display: inline-block;
}

/* ==================== SUPPLEMENT CARDS ==================== */
.supplement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.2s ease;
    border-left: 4px solid;
}

.supplement-card:hover {
    background: var(--bg-card-hover);
}

.supplement-card.active-supplement {
    border-left-color: var(--accent-success);
}

.supplement-card.ended-supplement {
    border-left-color: var(--text-secondary);
    opacity: 0.75;
}

/* ==================== PERSONAL / BACKEND NAV ==================== */
.personal-nav,
.backend-nav,
.admin-nav {
    gap: 0.5rem;
}

.personal-nav .nav-link,
.backend-nav .nav-link,
.admin-nav .nav-link {
    border-radius: 8px;
    color: var(--text-secondary);
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.personal-nav .nav-link:hover,
.backend-nav .nav-link:hover,
.admin-nav .nav-link:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.personal-nav .nav-link.active,
.backend-nav .nav-link.active,
.admin-nav .nav-link.active {
    background: var(--accent-primary);
    color: white;
}

/* ==================== ANALYSIS SESSION CARDS ==================== */
.analysis-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.2s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.analysis-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    color: inherit;
    text-decoration: none;
}

.analysis-card .analysis-date {
    font-size: 1.1rem;
    font-weight: 600;
}

.analysis-card .analysis-meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==================== ADMIN DASHBOARD ==================== */
.admin-metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.admin-metric-card .metric-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
}

.admin-metric-card .metric-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.progress-bar-custom {
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    overflow: hidden;
}

.progress-bar-custom .progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* ==================== USER MANAGEMENT ==================== */
.user-role-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.user-role-badge.role-admin {
    background: rgba(248, 81, 73, 0.15);
    color: var(--accent-danger);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

.user-role-badge.role-coach {
    background: rgba(210, 153, 34, 0.15);
    color: var(--accent-warning);
    border: 1px solid rgba(210, 153, 34, 0.3);
}

.user-role-badge.role-user {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent-info);
    border: 1px solid rgba(88, 166, 255, 0.3);
}

/* ==================== MAPPING GRID ==================== */
.mapping-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* ==================== TABLES ==================== */
.table-dark {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: var(--bg-card-hover);
}

/* ==================== FORMS ==================== */
.form-control,
.form-select {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(108, 99, 255, 0.25);
}

/* ==================== CARDS ==================== */
.card {
    border-radius: 12px;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
}

/* ==================== ALERTS ==================== */
.alert {
    border-radius: 10px;
}

/* ==================== PROFILE SECTION ==================== */
.profile-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    font-weight: 700;
    flex-shrink: 0;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .stat-number {
        font-size: 1.25rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .category-card {
        padding: 1rem;
    }

    .category-card-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .chart-container {
        height: 220px;
    }

    .mapping-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 1.5rem;
        margin: 0.5rem;
    }

    .athlete-switcher {
        flex-direction: column;
        align-items: stretch;
    }

    .athlete-switcher .form-select {
        max-width: 100%;
    }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.3s ease;
}

/* ==================== CUSTOM BADGE ==================== */
.badge {
    font-weight: 500;
}

/* ==================== PRE CODE ==================== */
pre {
    margin: 0;
}

code {
    font-size: 0.8rem;
}

/* ==================== MERGE PAGE ==================== */
.preview-box {
    min-height: 150px;
    max-height: 400px;
    overflow-y: auto;
}

.preview-box .table {
    font-size: 0.85rem;
}

#conflictPreview .border-bottom:last-child {
    border-bottom: none !important;
}

/* ==================== VIEWING-AS BANNER ==================== */
.viewing-as-banner {
    background: linear-gradient(90deg, rgba(210, 153, 34, 0.15) 0%, rgba(210, 153, 34, 0.05) 100%);
    border: 1px solid rgba(210, 153, 34, 0.3);
    border-radius: 10px;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.viewing-as-banner i {
    color: var(--accent-warning);
    font-size: 1.25rem;
}

.viewing-as-banner .viewing-name {
    font-weight: 600;
    color: var(--accent-warning);
}