/* ==========================================================================
   Sport Diary — Design tokens
   ========================================================================== */
:root {
    --sport-primary: #0d9488;
    --sport-primary-dark: #0f766e;
    --sport-primary-light: #14b8a6;
    --sport-accent: #f97316;
    --sport-accent-dark: #ea580c;
    --sport-success: #16a34a;
    --sport-danger: #dc2626;
    --sport-bg-start: #f1f5f9;
    --sport-bg-end: #e8f0fe;
    --sport-surface: #ffffff;
    --sport-text: #0f172a;
    --sport-text-muted: #64748b;
    --sport-navbar: #0f172a;
    --sport-border: rgba(15, 23, 42, 0.08);
    --sport-radius: 12px;
    --sport-radius-sm: 8px;
    --sport-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --sport-shadow-hover: 0 8px 32px rgba(15, 23, 42, 0.1);
    --sport-transition: 0.25s ease;

    --bs-primary: #0d9488;
    --bs-primary-rgb: 13, 148, 136;
    --bs-success: #16a34a;
    --bs-success-rgb: 22, 163, 74;
    --bs-danger: #dc2626;
    --bs-warning: #f59e0b;
    --bs-info: #0ea5e9;
    --bs-body-color: #0f172a;
    --bs-body-bg: #f1f5f9;
    --bs-border-color: rgba(15, 23, 42, 0.1);
    --bs-border-radius: 8px;
    --bs-border-radius-lg: 12px;
    --bs-link-color: #0d9488;
    --bs-link-hover-color: #0f766e;
}

/* ==========================================================================
   Base
   ========================================================================== */
body.sport-app {
    padding-top: 72px;
    font-family: 'Manrope', system-ui, -apple-system, sans-serif;
    color: var(--sport-text);
    background: linear-gradient(160deg, var(--sport-bg-start) 0%, var(--sport-bg-end) 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

.sport-main {
    animation: fadeInUp 0.45s ease both;
}

main h1 {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--sport-text);
}

main .lead {
    color: var(--sport-text-muted);
    font-size: 1rem;
    font-weight: 500;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar-sport {
    background: linear-gradient(135deg, var(--sport-navbar) 0%, #1e293b 100%) !important;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.15);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.navbar-sport .navbar-brand {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #fff !important;
}

.navbar-sport .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: 0.5rem 0.85rem !important;
    border-radius: var(--sport-radius-sm);
    transition: color var(--sport-transition), background var(--sport-transition);
    position: relative;
}

.navbar-sport .nav-link:hover,
.navbar-sport .nav-link:focus {
    color: #fff !important;
    background: rgba(13, 148, 136, 0.2);
}

.navbar-sport .dropdown-menu {
    border: none;
    border-radius: var(--sport-radius);
    box-shadow: var(--sport-shadow-hover);
    padding: 0.5rem;
}

.navbar-sport .dropdown-item {
    border-radius: var(--sport-radius-sm);
    font-weight: 500;
    padding: 0.45rem 0.85rem;
}

.navbar-sport .dropdown-item:hover {
    background: rgba(13, 148, 136, 0.1);
    color: var(--sport-primary-dark);
}

.navbar-sport .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.35);
    font-weight: 500;
    transition: all var(--sport-transition);
}

.navbar-sport .btn-outline-light:hover {
    background: var(--sport-primary);
    border-color: var(--sport-primary);
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    border: 1px solid var(--sport-border);
    border-radius: var(--sport-radius);
    box-shadow: var(--sport-shadow);
    background: var(--sport-surface);
    transition: transform var(--sport-transition), box-shadow var(--sport-transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--sport-shadow-hover);
}

.card-header {
    background: linear-gradient(180deg, rgba(241, 245, 249, 0.9) 0%, rgba(255, 255, 255, 0.5) 100%);
    border-bottom: 1px solid var(--sport-border);
    font-weight: 600;
    color: var(--sport-text);
    padding: 0.85rem 1.15rem;
}

.card-body {
    padding: 1.15rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    border-radius: var(--sport-radius-sm);
    font-weight: 600;
    transition: transform var(--sport-transition), box-shadow var(--sport-transition), background var(--sport-transition);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--sport-primary) 0%, var(--sport-primary-dark) 100%);
    border-color: var(--sport-primary-dark);
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--sport-primary-light) 0%, var(--sport-primary) 100%);
    border-color: var(--sport-primary);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.35);
}

.btn-success {
    background: linear-gradient(135deg, var(--sport-success) 0%, #15803d 100%);
    border-color: #15803d;
}

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

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

.btn-outline-success {
    color: var(--sport-success);
    border-color: var(--sport-success);
}

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

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

/* ==========================================================================
   Forms
   ========================================================================== */
.form-control,
.form-select {
    border-radius: var(--sport-radius-sm);
    border-color: var(--sport-border);
    transition: border-color var(--sport-transition), box-shadow var(--sport-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--sport-primary);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

/* ==========================================================================
   Tables
   ========================================================================== */
.table {
    --bs-table-border-color: var(--sport-border);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(241, 245, 249, 0.5);
}

.table thead th {
    font-weight: 600;
    color: var(--sport-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom-width: 1px;
}

.table-bordered {
    border-radius: var(--sport-radius-sm);
    overflow: hidden;
}

/* ==========================================================================
   Alerts & badges
   ========================================================================== */
.alert {
    border: none;
    border-radius: var(--sport-radius-sm);
    border-left: 4px solid transparent;
    font-weight: 500;
}

.alert-success {
    background: rgba(22, 163, 74, 0.1);
    border-left-color: var(--sport-success);
    color: #166534;
}

.alert-warning {
    background: rgba(249, 115, 22, 0.1);
    border-left-color: var(--sport-accent);
    color: #9a3412;
}

.alert-danger {
    background: rgba(220, 38, 38, 0.1);
    border-left-color: var(--sport-danger);
    color: #991b1b;
}

.alert-info {
    background: rgba(14, 165, 233, 0.1);
    border-left-color: #0ea5e9;
    color: #075985;
}

.alert-light {
    background: var(--sport-surface);
    border-left-color: var(--sport-primary);
    box-shadow: var(--sport-shadow);
}

.badge {
    border-radius: 6px;
    font-weight: 600;
    padding: 0.4em 0.65em;
}

.bg-primary {
    background: linear-gradient(135deg, var(--sport-primary) 0%, var(--sport-primary-dark) 100%) !important;
}

/* ==========================================================================
   Progress
   ========================================================================== */
.progress {
    background: rgba(15, 23, 42, 0.06);
    border-radius: 100px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--sport-primary) 0%, var(--sport-primary-light) 50%, #34d399 100%);
    transition: width 0.6s ease;
}

/* ==========================================================================
   List group
   ========================================================================== */
.list-group-item {
    border-color: var(--sport-border);
    transition: background var(--sport-transition);
}

.list-group-item:hover {
    background: rgba(13, 148, 136, 0.04);
}

/* ==========================================================================
   KPI cards
   ========================================================================== */
.kpi-card {
    border-left: 4px solid var(--sport-primary);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(20%, -20%);
}

.kpi-card:nth-child(2),
.row > .col-sm-6:nth-child(2) .kpi-card,
.row > .col-xl-3:nth-child(2) .kpi-card {
    border-left-color: var(--sport-accent);
}

.row > .col-sm-6:nth-child(3) .kpi-card,
.row > .col-xl-3:nth-child(3) .kpi-card {
    border-left-color: var(--sport-success);
}

.row > .col-sm-6:nth-child(4) .kpi-card,
.row > .col-xl-3:nth-child(4) .kpi-card {
    border-left-color: #6366f1;
}

.kpi-card .kpi-label {
    font-size: 0.8rem;
    color: var(--sport-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.kpi-card .kpi-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-top: 0.35rem;
    color: var(--sport-text);
    letter-spacing: -0.02em;
}

.kpi-card .kpi-value-sm {
    font-size: 1.1rem;
    font-weight: 600;
}

.sport-stagger > [class*='col-'] {
    animation: fadeInUp 0.5s ease both;
}

.sport-stagger > [class*='col-']:nth-child(1) { animation-delay: 0.05s; }
.sport-stagger > [class*='col-']:nth-child(2) { animation-delay: 0.1s; }
.sport-stagger > [class*='col-']:nth-child(3) { animation-delay: 0.15s; }
.sport-stagger > [class*='col-']:nth-child(4) { animation-delay: 0.2s; }

/* ==========================================================================
   Login
   ========================================================================== */
.sport-login-wrap {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.sport-login-card {
    border: none;
    border-radius: var(--sport-radius);
    box-shadow: var(--sport-shadow-hover);
    overflow: hidden;
    max-width: 420px;
    width: 100%;
    animation: fadeInUp 0.5s ease both;
}

.sport-login-card .card-accent {
    height: 4px;
    background: linear-gradient(90deg, var(--sport-primary) 0%, var(--sport-accent) 100%);
}

.sport-login-card .card-body {
    padding: 2rem;
}

.sport-login-card h1 {
    font-weight: 700;
    font-size: 1.75rem;
}

.sport-login-subtitle {
    color: var(--sport-text-muted);
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.sport-footer {
    margin-top: 3rem;
    padding: 1.25rem 0;
    text-align: center;
    color: var(--sport-text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ==========================================================================
   Misc components
   ========================================================================== */
.table-actions {
    white-space: nowrap;
}

.table-actions .btn {
    margin-right: 4px;
}

.plan-content {
    white-space: pre-wrap;
    background: rgba(241, 245, 249, 0.6);
    padding: 1.5rem;
    border-radius: var(--sport-radius-sm);
    border: 1px solid var(--sport-border);
}

.ai-result {
    margin-top: 1.5rem;
}

.exercise-params-strength,
.exercise-params-cardio {
    display: none;
}

.exercise-params-strength.active,
.exercise-params-cardio.active {
    display: block;
}

.chart-container {
    position: relative;
    height: 200px;
}

.chart-container-lg {
    height: 320px;
}

.delta-positive {
    color: var(--sport-success);
    font-weight: 600;
}

.delta-negative {
    color: var(--sport-danger);
    font-weight: 600;
}

.plan-content-preview {
    max-height: 220px;
    overflow: hidden;
    margin-bottom: 0;
}

.plan-content-markdown {
    white-space: normal;
}

.plan-content-markdown h2 {
    font-size: 1.25rem;
    margin-top: 1rem;
}

.plan-content-markdown ul {
    margin-bottom: 0.5rem;
}

.challenge-days-matrix {
    max-height: 420px;
    overflow: auto;
}

.challenge-matrix-table th,
.challenge-matrix-table td {
    vertical-align: middle;
}

.challenge-matrix-action {
    min-width: 4.5rem;
    max-width: 6rem;
    font-size: 0.75rem;
    line-height: 1.2;
    padding: 0.35rem 0.25rem !important;
}

.challenge-matrix-action-name {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.challenge-matrix-action-points {
    display: block;
    font-size: 0.7rem;
}

.challenge-matrix-done {
    background-color: rgba(13, 148, 136, 0.12);
    color: var(--sport-primary-dark);
    font-weight: 600;
}

.challenge-matrix-table tbody tr.table-primary td {
    --bs-table-bg-state: rgba(13, 148, 136, 0.12);
}

.pagination .page-link {
    border-radius: var(--sport-radius-sm);
    margin: 0 2px;
    color: var(--sport-primary);
}

.pagination .page-item.active .page-link {
    background: var(--sport-primary);
    border-color: var(--sport-primary);
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .card:hover,
    .btn:hover {
        transform: none;
    }
}