/* ==================== THEME SYSTEM ==================== */
:root,
[data-bs-theme="dark"] {
    --bg-primary: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2333;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-primary: #8B1A1A;
    --accent-primary-hover: #A52222;
    --accent-primary-light: rgba(139, 26, 26, 0.15);
    --accent-primary-border: rgba(139, 26, 26, 0.4);
    --accent-success: #2ea043;
    --accent-danger: #f85149;
    --accent-warning: #d29922;
    --accent-info: #c9553a;
    --input-bg: #0d1117;
    --login-bg-start: #0d1117;
    --login-bg-mid: #161b22;
    --login-bg-end: #1c2333;
    --bs-body-bg: #0d1117;
    --bs-body-color: #e6edf3;
}

[data-bs-theme="light"] {
    --bg-primary: #f5f5f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f0f0;
    --border-color: #e0d0d0;
    --text-primary: #1a1a1a;
    --text-secondary: #6b6b6b;
    --accent-primary: #8B1A1A;
    --accent-primary-hover: #A52222;
    --accent-primary-light: rgba(139, 26, 26, 0.08);
    --accent-primary-border: rgba(139, 26, 26, 0.25);
    --accent-success: #1a7f37;
    --accent-danger: #cf222e;
    --accent-warning: #bf8700;
    --accent-info: #a5412a;
    --input-bg: #ffffff;
    --login-bg-start: #f5f5f5;
    --login-bg-mid: #faf0f0;
    --login-bg-end: #f0e8e8;
    --bs-body-bg: #f5f5f5;
    --bs-body-color: #1a1a1a;
}

/* ==================== GLOBAL ==================== */
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;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* 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); }

/* ==================== THEME TOGGLE ==================== */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px;
    padding: 0.35rem 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-light);
}

/* ==================== LOGIN PAGE ==================== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--login-bg-start) 0%, var(--login-bg-mid) 50%, var(--login-bg-end) 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, 0.3);
    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 .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.login-logo .logo-icon svg { width: 36px; height: 36px; }

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

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

.login-card .form-control {
    background-color: var(--input-bg);
    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(--input-bg);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.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;
    color: #fff;
}

.login-card .btn-primary:hover {
    background: var(--accent-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(139, 26, 26, 0.3);
}

.login-card .input-group-text {
    background-color: var(--input-bg);
    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;
    border-bottom: 1px solid var(--border-color) !important;
    transition: background-color 0.3s ease;
}

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

.navbar-brand .brand-text {
    color: var(--accent-primary);
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* ==================== 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(--input-bg);
    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, 0.2);
}

.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: 320px;
    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; }

/* ==================== NAVIGATION PILLS ==================== */
.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(139, 26, 26, 0.15);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary-border);
}

.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(201, 85, 58, 0.15);
    color: var(--accent-info);
    border: 1px solid rgba(201, 85, 58, 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, 0.1);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

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

[data-bs-theme="light"] .table-dark {
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

/* ==================== 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 var(--accent-primary-light);
}

/* ==================== BUTTONS ==================== */
.btn-primary {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    color: #fff;
}

.btn-outline-primary {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-outline-primary:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #fff;
}

/* ==================== CARDS ==================== */
.card {
    border-radius: 12px;
    background-color: var(--bg-card);
    transition: background-color 0.3s ease;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    background-color: var(--bg-card);
}

/* ==================== 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;
}

/* ==================== 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); }

/* ==================== FAVORITE BUTTON ==================== */
.favorite-btn:hover i { color: var(--accent-warning) !important; }

/* ==================== TEXT ACCENT HELPERS ==================== */
.text-primary { color: var(--accent-primary) !important; }

/* ==================== LIGHT MODE OVERRIDES ==================== */
[data-bs-theme="light"] .bg-dark {
    background-color: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .card.bg-dark,
[data-bs-theme="light"] .card {
    background-color: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .card-header {
    background-color: var(--bg-card) !important;
}

[data-bs-theme="light"] .table-dark {
    --bs-table-bg: transparent !important;
    --bs-table-color: var(--text-primary) !important;
    --bs-table-border-color: var(--border-color) !important;
    --bs-table-hover-bg: var(--bg-card-hover) !important;
    --bs-table-striped-bg: var(--bg-card-hover) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .table-dark th,
[data-bs-theme="light"] .table-dark td {
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

[data-bs-theme="light"] .navbar {
    background-color: var(--bg-card) !important;
    border-bottom-color: var(--border-color) !important;
}

[data-bs-theme="light"] .navbar .nav-link {
    color: var(--text-secondary) !important;
}

[data-bs-theme="light"] .navbar .nav-link:hover,
[data-bs-theme="light"] .navbar .nav-link.active {
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .navbar-brand img {
    filter: brightness(0.2);
}

[data-bs-theme="light"] .dropdown-menu-dark {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
}

[data-bs-theme="light"] .dropdown-menu-dark .dropdown-item {
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .dropdown-menu-dark .dropdown-item:hover {
    background-color: var(--bg-card-hover) !important;
}

[data-bs-theme="light"] .dropdown-menu-dark .dropdown-divider {
    border-color: var(--border-color) !important;
}

[data-bs-theme="light"] .border-secondary {
    border-color: var(--border-color) !important;
}

[data-bs-theme="light"] .text-muted {
    color: var(--text-secondary) !important;
}

[data-bs-theme="light"] .form-control,
[data-bs-theme="light"] .form-select {
    background-color: var(--input-bg) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .form-control.bg-dark {
    background-color: var(--input-bg) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .input-group-text {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-secondary) !important;
}

[data-bs-theme="light"] .btn-close {
    filter: none !important;
}

[data-bs-theme="light"] .modal-content.bg-dark {
    background-color: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] .bg-black {
    background-color: var(--bg-card-hover) !important;
}

[data-bs-theme="light"] .text-light {
    color: var(--text-primary) !important;
}

[data-bs-theme="light"] pre.bg-black {
    background-color: #1a1a2e !important;
    color: #2ea043 !important;
}

[data-bs-theme="light"] footer {
    border-top-color: var(--border-color) !important;
}

[data-bs-theme="light"] .progress-bar-custom {
    background: #e0d0d0;
}

[data-bs-theme="light"] .stat-card,
[data-bs-theme="light"] .admin-metric-card,
[data-bs-theme="light"] .analysis-card,
[data-bs-theme="light"] .supplement-card,
[data-bs-theme="light"] .profile-header {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
}

[data-bs-theme="light"] .category-card {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

[data-bs-theme="light"] .mapping-grid {
    background: rgba(0, 0, 0, 0.03) !important;
}

[data-bs-theme="light"] .bg-opacity-25 {
    opacity: 1 !important;
}

[data-bs-theme="light"] .bg-opacity-10 {
    opacity: 1 !important;
}

/* ==================== ONBOARDING WIZARD ==================== */
.onboarding-wizard {
    padding: 2rem 0;
}

.onboarding-progress {
    padding: 0 2rem;
}

.onboarding-step {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    background: var(--border-color);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.onboarding-step.active {
    background: var(--accent-primary);
    color: #fff;
    transform: scale(1.1);
}

.onboarding-step.done {
    background: var(--accent-success);
    color: #fff;
}

.onboarding-line {
    flex: 1;
    height: 2px;
    background: var(--border-color);
    margin: 0 0.5rem;
}

.onboarding-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.onboarding-panel.active {
    display: block;
}

/* ==================== DRAG & DROP IMPORT ==================== */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.drop-zone.dragover {
    transform: scale(1.01);
    box-shadow: 0 0 20px var(--accent-primary-light);
}

.drop-zone .drop-icon {
    font-size: 2.5rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.drop-zone.dragover .drop-icon {
    color: var(--accent-primary);
    transform: scale(1.15);
}

.drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.drop-zone .file-name {
    margin-top: 0.5rem;
    font-weight: 600;
    color: var(--accent-primary);
    display: none;
}

.drop-zone.has-file .file-name { display: block; }
.drop-zone.has-file .drop-hint { display: none; }

/* ==================== CHART TIME FILTER ==================== */
.chart-time-filter {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}

.chart-time-filter .btn {
    padding: 0.15rem 0.6rem;
    font-size: 0.7rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.chart-time-filter .btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.chart-time-filter .btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #fff;
}

/* ==================== SKELETON SCREENS ==================== */
.skeleton {
    background: linear-gradient(90deg,
        var(--bg-card) 25%,
        var(--bg-card-hover) 50%,
        var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s ease-in-out infinite;
    border-radius: 8px;
}

@keyframes skeletonShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 14px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-text.w-75 { width: 75%; }
.skeleton-text.w-50 { width: 50%; }
.skeleton-text.w-25 { width: 25%; }

.skeleton-card {
    height: 120px;
    border-radius: 12px;
}

.skeleton-chart {
    height: 280px;
    border-radius: 12px;
}

/* ==================== MOBILE SWIPE NAV ==================== */
.category-nav-scroll {
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
}

.category-nav-btn {
    scroll-snap-align: start;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .stat-number { font-size: 1.25rem; }
    .stat-card { padding: 0.75rem; gap: 0.75rem; }
    .stat-icon { width: 40px; height: 40px; font-size: 1rem; }
    .stat-label { font-size: 0.7rem; }

    .category-card { padding: 1rem; }
    .category-card-icon { width: 44px; height: 44px; font-size: 1.2rem; }
    .category-card-title { font-size: 0.9rem; }

    .chart-container { height: 280px; }
    .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%; }

    /* Mobile Tabellen */
    .table-responsive { margin: 0 -0.75rem; }
    .table th, .table td { padding: 0.5rem 0.4rem; font-size: 0.8rem; white-space: nowrap; }

    /* Mobile Cards */
    .card-header h5 { font-size: 0.95rem; }
    .card-body { padding: 0.75rem; }

    /* Mobile Nav */
    .personal-nav, .admin-nav { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
    .personal-nav::-webkit-scrollbar, .admin-nav::-webkit-scrollbar { display: none; }
    .personal-nav .nav-link, .admin-nav .nav-link { white-space: nowrap; font-size: 0.8rem; padding: 0.4rem 0.7rem; }

    /* Mobile Dashboard */
    .supplement-badge { font-size: 0.75rem; padding: 0.4rem 0.75rem; }

    /* Mobile Footer */
    footer { padding: 0.75rem 0 !important; margin-top: 2rem !important; }

    /* Mobile Buttons */
    .btn-lg { padding: 0.6rem 1.2rem; font-size: 0.9rem; }

    /* Mobile Profile Header */
    .profile-header { flex-direction: column; text-align: center; gap: 1rem; padding: 1rem; }
    .profile-avatar { width: 60px; height: 60px; font-size: 1.5rem; }

    /* Mobile Chart Filter */
    .chart-time-filter { flex-wrap: wrap; }

    /* Onboarding Mobile */
    .onboarding-wizard { padding: 1rem 0; }
    .onboarding-progress { padding: 0; }
    .onboarding-step { width: 30px; height: 30px; font-size: 0.75rem; }
}

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

.card { animation: fadeIn 0.3s ease; }

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