/* ═══════════════════════════════════════════
   Client Reporting Dashboard - Stylesheet
   ═══════════════════════════════════════════ */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-primary-light: #e0f2fe;
    --color-success: #10b981;
    --color-success-light: #ecfdf5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-light: #fef2f2;

    --color-bg: #f0f2f5;
    --color-surface: #ffffff;
    --color-text: #1a1a2e;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);

    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ─── Login Page ─── */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0c4a6e 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    margin-bottom: 16px;
}

.login-logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
}

.login-subtitle {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: var(--font);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder { color: var(--color-text-muted); }

/* ─── Buttons ─── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(99,102,241,0.3); }
.btn-primary:active { transform: translateY(0); }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-light); }

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}
.btn-ghost:hover { background: rgba(0,0,0,0.05); color: var(--color-text); }

.btn-sm { padding: 6px 14px; font-size: 13px; }

.btn-full { width: 100%; justify-content: center; padding: 14px; font-size: 15px; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

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

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ─── Login states ─── */

.success-message {
    text-align: center;
    padding: 20px 0;
}

.success-message h2 {
    font-size: 20px;
    margin: 16px 0 8px;
    color: var(--color-text);
}

.success-message p {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.success-message .hint {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.error-message {
    background: var(--color-danger-light);
    color: var(--color-danger);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-top: 16px;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: rgba(255,255,255,0.7);
    font-size: 13px;
}

/* ═══════════════════════════════════════════
   Dashboard Layout
   ═══════════════════════════════════════════ */

.dashboard-page {
    min-height: 100vh;
}

/* ─── Header ─── */

.dash-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-title {
    font-size: 18px;
    font-weight: 700;
}

.header-subtitle {
    font-size: 12px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.date-picker {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-bg);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.date-input {
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 13px;
    font-family: var(--font);
    color: var(--color-text);
    background: var(--color-surface);
    outline: none;
}
.date-input:focus { border-color: var(--color-primary); }

.date-sep {
    color: var(--color-text-muted);
    font-size: 13px;
}

/* ─── Tab Nav ─── */

.tab-nav {
    display: flex;
    gap: 4px;
    padding: 12px 32px 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    scrollbar-width: none;
}
.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--color-text);
    background: rgba(0,0,0,0.02);
}

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

.tab-btn svg { flex-shrink: 0; }

/* ─── Tab Content ─── */

.tab-content {
    padding: 24px 32px 48px;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ─── Loading ─── */

.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: var(--color-text-muted);
    gap: 16px;
    font-size: 14px;
}

.loader {
    width: 36px;
    height: 36px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-state {
    background: var(--color-danger-light);
    color: var(--color-danger);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    text-align: center;
}

/* ─── KPI Cards ─── */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-grid-3 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.kpi-grid-secondary { margin-top: -8px; }

.kpi-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
    border: 1px solid var(--color-border);
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.kpi-card-sm { padding: 16px 20px; }

.kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.2;
}

.kpi-card-sm .kpi-value { font-size: 22px; }

.kpi-label {
    font-size: 12px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
    font-weight: 500;
}

/* ─── Chart Cards ─── */

.chart-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.chart-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.chart-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
}

.chart-wrap {
    height: 280px;
    position: relative;
}

/* ─── Tables ─── */

.table-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.table-card, .full-width-card, .tasks-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.table-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
}

.table-scroll {
    overflow-x: auto;
    scrollbar-width: thin;
}

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

.table-scroll th {
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.table-scroll td {
    padding: 10px 14px;
    border-bottom: 1px solid #f1f5f9;
    color: var(--color-text);
    white-space: nowrap;
}

.table-scroll tr:hover td { background: #f8fafc; }

.cell-primary {
    font-weight: 500;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.text-success { color: var(--color-success); font-weight: 600; }
.text-danger { color: var(--color-danger); font-weight: 600; }

.empty-state {
    text-align: center;
    padding: 32px;
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ─── Card header with search ─── */

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 16px;
}

.search-input {
    padding: 8px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: var(--font);
    outline: none;
    width: 240px;
    transition: border-color 0.2s;
}
.search-input:focus { border-color: var(--color-primary); }
.search-input::placeholder { color: var(--color-text-muted); }

/* ─── Section heading ─── */

.section-heading {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

/* ─── Tasks List ─── */

.tasks-list {
    list-style: none;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
}

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

.task-check {
    color: var(--color-success);
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.task-title {
    font-size: 14px;
    color: var(--color-text);
    flex: 1;
}

.task-tag {
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

.task-view {
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    flex-shrink: 0;
    padding: 2px 10px;
    border: 1.5px solid var(--color-primary);
    border-radius: 4px;
    transition: all 0.2s;
}
.task-view:hover {
    background: var(--color-primary);
    color: #fff;
}

.task-date {
    color: var(--color-text-muted);
    font-size: 12px;
    flex-shrink: 0;
}

/* ─── Warnings ─── */

.warning-badge {
    display: inline-block;
    background: var(--color-warning-light);
    color: #92400e;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin: 0 8px 8px 0;
}

/* ─── Hidden utility ─── */

.hidden { display: none !important; }

/* ═══════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════ */

@media (max-width: 1024px) {
    .dash-header {
        flex-wrap: wrap;
        padding: 12px 20px;
    }
    .header-right {
        flex-wrap: wrap;
        width: 100%;
    }
    .date-picker {
        width: 100%;
        flex-wrap: wrap;
    }
    .tab-content { padding: 16px 20px 48px; }
    .chart-row { grid-template-columns: 1fr; }
    .table-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .dash-header { padding: 12px 16px; }
    .tab-nav { padding: 8px 16px 0; }
    .tab-btn { padding: 8px 12px; font-size: 13px; }
    .tab-content { padding: 12px 16px 48px; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .kpi-card { padding: 16px; }
    .kpi-value { font-size: 22px; }
    .chart-wrap { height: 220px; }
    .chart-row { grid-template-columns: 1fr; }

    .login-card { padding: 32px 24px; }

    .card-header { flex-direction: column; align-items: stretch; }
    .search-input { width: 100%; }
}

@media (max-width: 480px) {
    .kpi-grid { grid-template-columns: 1fr; }
    .header-right .btn-outline span { display: none; }
}

/* ─── Print styles ─── */

@media print {
    .dash-header, .tab-nav, .date-picker, #pdf-btn, #logout-btn { display: none !important; }
    .tab-panel { display: block !important; page-break-inside: avoid; }
    .tab-content { padding: 0; }
    body { background: #fff; }
}