/* ============================================
   Strava Dashboard - Stylesheet
   Modern, responsive design
   ============================================ */

:root {
    --color-bg: #0f1117;
    --color-surface: #1a1d27;
    --color-surface-hover: #22263a;
    --color-card: #1e2130;
    --color-border: #2a2e3f;
    --color-text: #e4e6f0;
    --color-text-secondary: #8b8fa3;
    --color-text-muted: #5d6178;
    --color-primary: #fc4c02;
    --color-primary-light: #ff6b2b;
    --color-primary-dark: #d94000;
    --color-accent: #4c9aff;
    --color-success: #36b37e;
    --color-warning: #ffab00;
    --color-danger: #ff5630;
    --color-ride: #fc4c02;
    --color-run: #00c853;
    --color-swim: #2196f3;
    --color-walk: #9c27b0;
    --color-hike: #795548;
    --color-other: #607d8b;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --transition: 0.2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============ RESET & BASE ============ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============ LOGIN PAGINA ============ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(ellipse at top, #1a1d2e 0%, var(--color-bg) 70%);
    padding: 20px;
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 48px;
    text-align: center;
    max-width: 440px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: #fff;
}

.login-card h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    font-size: 15px;
}

.btn-strava {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--color-primary);
    color: white;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-strava:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(252, 76, 2, 0.4);
}

.login-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 32px;
    text-align: left;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.feature i {
    color: var(--color-primary);
    width: 16px;
}

/* ============ NAVIGATIE ============ */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 60px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-tabs {
    display: flex;
    gap: 4px;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-tab:hover {
    color: var(--color-text);
    background: var(--color-surface-hover);
}

.nav-tab.active {
    color: var(--color-primary);
    background: rgba(252, 76, 2, 0.1);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-username {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* ============ KNOPPEN ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-text-muted);
}

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

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

.btn-sync.syncing {
    opacity: 0.7;
    pointer-events: none;
}

.btn-sync.syncing i {
    animation: spin 1s linear infinite;
}

.btn-logout {
    border: none;
    color: var(--color-text-muted);
    padding: 8px;
}

.btn-logout:hover {
    color: var(--color-danger);
    background: transparent;
}

/* ============ SYNC BAR ============ */
.sync-bar {
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    padding: 8px 24px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: white;
}

.sync-bar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* ============ MAIN CONTENT ============ */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* ============ FLASH BERICHTEN ============ */
.flash {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

.flash-success {
    background: #1a3a2a;
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.flash-error {
    background: #3a1a1a;
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 18px;
    cursor: pointer;
    margin-left: auto;
    padding: 0 4px;
}

/* ============ PERIODE SELECTOR ============ */
.period-selector {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--color-surface);
    padding: 4px;
    border-radius: var(--radius);
    width: fit-content;
    border: 1px solid var(--color-border);
}

.period-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.period-btn:hover {
    color: var(--color-text);
}

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

/* ============ KPI KAARTEN ============ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    transition: var(--transition);
}

.kpi-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(252, 76, 2, 0.1);
}

.kpi-icon {
    color: var(--color-primary);
    font-size: 18px;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.kpi-label {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ============ GRAFIEK KAARTEN ============ */
.chart-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

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

.chart-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.chart-card.full-width {
    margin-bottom: 16px;
}

.chart-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.chart-header h3 {
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-header h3 i {
    color: var(--color-primary);
    font-size: 14px;
}

.chart-body {
    padding: 20px;
    position: relative;
    min-height: 200px;
}

.chart-body.chart-tall {
    min-height: 300px;
}

.chart-body canvas {
    width: 100% !important;
    max-height: 320px;
}

/* ============ TABEL ============ */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table thead th {
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--color-surface-hover);
}

.data-table tbody td {
    padding: 10px 12px;
    white-space: nowrap;
}

.data-table .activity-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.data-table .activity-link:hover {
    text-decoration: underline;
}

/* Activiteitstype badge */
.type-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.type-badge.ride { background: rgba(252, 76, 2, 0.15); color: var(--color-ride); }
.type-badge.virtualride { background: rgba(252, 76, 2, 0.1); color: #e06800; }
.type-badge.cycling { background: rgba(252, 76, 2, 0.15); color: var(--color-ride); }
.type-badge.running { background: rgba(0, 200, 83, 0.15); color: var(--color-run); }
.type-badge.run { background: rgba(0, 200, 83, 0.15); color: var(--color-run); }
.type-badge.swim { background: rgba(33, 150, 243, 0.15); color: var(--color-swim); }
.type-badge.walk { background: rgba(156, 39, 176, 0.15); color: var(--color-walk); }
.type-badge.hike { background: rgba(121, 85, 72, 0.15); color: var(--color-hike); }
.type-badge.other { background: rgba(96, 125, 139, 0.15); color: var(--color-other); }

.type-badge i {
    font-size: 10px;
}

/* ============ EXPORT BAR ============ */
.export-bar {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.btn-export {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

/* ============ FILTERS ============ */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-select {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 13px;
    cursor: pointer;
    min-width: 140px;
}

.filter-select:hover {
    border-color: var(--color-text-muted);
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ============ PAGINERING ============ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
}

.pagination button {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-size: 13px;
    transition: var(--transition);
}

.pagination button:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.pagination button.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.pagination button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ============ HEATMAP (KALENDER) ============ */
.heatmap-container {
    overflow-x: auto;
    padding: 16px 20px;
}

.heatmap {
    display: flex;
    gap: 3px;
}

.heatmap-week {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.heatmap-day {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    background: var(--color-surface);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.heatmap-day:hover {
    outline: 2px solid var(--color-text-muted);
}

.heatmap-day.level-0 { background: var(--color-surface); }
.heatmap-day.level-1 { background: rgba(252, 76, 2, 0.2); }
.heatmap-day.level-2 { background: rgba(252, 76, 2, 0.4); }
.heatmap-day.level-3 { background: rgba(252, 76, 2, 0.6); }
.heatmap-day.level-4 { background: var(--color-primary); }

.heatmap-labels {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-right: 8px;
    font-size: 10px;
    color: var(--color-text-muted);
}

.heatmap-label {
    height: 14px;
    display: flex;
    align-items: center;
}

.heatmap-months {
    display: flex;
    gap: 3px;
    margin-bottom: 6px;
    font-size: 11px;
    color: var(--color-text-muted);
}

.heatmap-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11px;
    white-space: nowrap;
    pointer-events: none;
    z-index: 10;
    box-shadow: var(--shadow);
}

/* ============ RECORDS ============ */
.records-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 16px;
}

.record-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.record-card h3 {
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.record-card h3 i {
    color: var(--color-primary);
}

.record-list {
    padding: 8px 0;
}

.record-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    transition: var(--transition);
}

.record-item:hover {
    background: var(--color-surface-hover);
}

.record-rank {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    background: var(--color-surface);
    color: var(--color-text-secondary);
}

.record-rank.gold { background: rgba(255, 215, 0, 0.15); color: #ffd700; }
.record-rank.silver { background: rgba(192, 192, 192, 0.15); color: #c0c0c0; }
.record-rank.bronze { background: rgba(205, 127, 50, 0.15); color: #cd7f32; }

.record-info {
    flex: 1;
    min-width: 0;
}

.record-name {
    font-weight: 500;
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.record-meta {
    font-size: 11px;
    color: var(--color-text-muted);
}

.record-value {
    font-weight: 700;
    font-size: 14px;
    color: var(--color-primary);
    white-space: nowrap;
}

/* ============ GEAR LIJST ============ */
.gear-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.gear-item:last-child {
    border-bottom: none;
}

.gear-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(252, 76, 2, 0.1);
    color: var(--color-primary);
    font-size: 16px;
    flex-shrink: 0;
}

.gear-info {
    flex: 1;
}

.gear-name {
    font-weight: 600;
    font-size: 14px;
}

.gear-meta {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.gear-distance {
    font-weight: 700;
    font-size: 15px;
    color: var(--color-primary);
}

/* ============ TAB CONTENT ============ */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ============ LOADING ============ */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ============ FOOTER ============ */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 12px;
    border-top: 1px solid var(--color-border);
    margin-top: 40px;
}

.footer-sync {
    margin-top: 4px;
}

/* ============ ANIMATIES ============ */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

.kpi-card, .chart-card, .record-card {
    animation: fadeIn 0.4s ease forwards;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .chart-grid {
        grid-template-columns: 1fr;
    }
    
    .records-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
        gap: 8px;
    }
    
    .nav-tabs {
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
    }
    
    .nav-tab span {
        display: none;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .kpi-value {
        font-size: 22px;
    }
    
    .filter-bar {
        flex-direction: column;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .period-selector {
        width: 100%;
        overflow-x: auto;
    }
    
    .login-card {
        padding: 32px 24px;
    }
    
    .login-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-username {
        display: none;
    }
}

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

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

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

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