/* ============================================
   Meta Ads Monitor — Dashboard Styles
   Dark mode premium design
   ============================================ */

:root {
    /* Core colors */
    --bg-primary: #08080d;
    --bg-secondary: #0f0f16;
    --bg-card: #14141e;
    --bg-card-hover: #1a1a28;
    --bg-input: #1a1a28;
    --border: #1e1e30;
    --border-hover: #2a2a42;

    /* Text */
    --text-primary: #e8eaf0;
    --text-secondary: #8b8fa3;
    --text-muted: #5a5e73;

    /* Accent gradients */
    --accent-purple: #7c3aed;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --gradient-main: linear-gradient(135deg, #7c3aed, #3b82f6);
    --gradient-green: linear-gradient(135deg, #10b981, #06b6d4);

    /* Sizing */
    --sidebar-width: 240px;
    --radius: 12px;
    --radius-sm: 8px;

    /* Font */
    --font: 'Inter', -apple-system, system-ui, sans-serif;
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* ============ SIDEBAR ============ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 20px 16px 12px;
    border-bottom: 1px solid var(--border);
}

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

.logo-icon {
    font-size: 20px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.3px;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-muted);
    padding-left: 28px;
    display: block;
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    overflow-y: auto;
}

.nav-section-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 16px 12px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(124, 58, 237, 0.12);
    color: var(--accent-purple);
}

.nav-icon { font-size: 14px; width: 18px; text-align: center; }

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.user-avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: white;
}

.user-name { font-size: 12px; font-weight: 500; }

.logout-btn {
    font-size: 16px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s;
    background: none;
    border: none;
    padding: 4px;
}

.logout-btn:hover { color: var(--accent-red); }

/* ============ MAIN CONTENT ============ */
.content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 24px 32px;
    min-height: 100vh;
}

.content-full {
    margin-left: 0;
}

/* ============ PAGE HEADER ============ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.breadcrumb {
    font-size: 12px;
    color: var(--text-muted);
    display: inline-block;
    margin-bottom: 4px;
    transition: color 0.15s;
}
.breadcrumb:hover { color: var(--accent-purple); }

.header-status { display: flex; gap: 8px; align-items: center; }

.status-badge {
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
}
.status-ok { background: rgba(16, 185, 129, 0.12); color: var(--accent-green); }
.status-error { background: rgba(239, 68, 68, 0.12); color: var(--accent-red); }

/* ============ KPI CARDS ============ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: border-color 0.2s;
}
.kpi-card:hover { border-color: var(--border-hover); }

.kpi-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.kpi-purple { background: rgba(124, 58, 237, 0.12); color: var(--accent-purple); }
.kpi-blue { background: rgba(59, 130, 246, 0.12); color: var(--accent-blue); }
.kpi-green { background: rgba(16, 185, 129, 0.12); color: var(--accent-green); }
.kpi-cyan { background: rgba(6, 182, 212, 0.12); color: var(--accent-cyan); }
.kpi-orange { background: rgba(245, 158, 11, 0.12); color: var(--accent-orange); }

.kpi-data { display: flex; flex-direction: column; }
.kpi-value {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.3px;
}
.kpi-label {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 2px;
    font-weight: 500;
}

/* ============ SECTION HEADER ============ */
.section-header {
    margin-bottom: 16px;
    margin-top: 8px;
}

.section-header h2 {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.2px;
}

/* ============ CLIENTS GRID ============ */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.client-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: block;
    transition: all 0.2s ease;
    cursor: pointer;
}
.client-card:hover {
    border-color: var(--accent-purple);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.08);
}

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

.client-name {
    font-size: 15px;
    font-weight: 600;
}

.client-currency {
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-primary);
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.client-card-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.client-stat-value {
    font-size: 16px;
    font-weight: 700;
    display: block;
}
.client-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-top: 1px;
}

.client-card-footer {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}
.client-arrow {
    margin-left: auto;
    color: var(--text-muted);
    transition: transform 0.2s;
}
.client-card:hover .client-arrow { transform: translateX(4px); color: var(--accent-purple); }

/* ============ PRESET SWITCHER ============ */
.preset-switcher {
    display: flex;
    gap: 2px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    padding: 3px;
    border: 1px solid var(--border);
}

.preset-btn {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.15s;
}
.preset-btn.active {
    background: var(--gradient-main);
    color: white;
}
.preset-btn:hover:not(.active) {
    color: var(--text-primary);
}

/* ============ CARDS ============ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}

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

/* ============ CHARTS ============ */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.chart-card { min-height: 280px; }
.chart-container {
    position: relative;
    height: 220px;
}

/* ============ DATA TABLE ============ */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    font-size: 12px;
}

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

.data-table tbody td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(30, 30, 48, 0.5);
    white-space: nowrap;
}

.data-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.data-table th.num,
.data-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.campaign-name {
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 7px; height: 7px;
    border-radius: 50%;
    margin-right: 5px;
}
.status-active { background: var(--accent-green); box-shadow: 0 0 6px rgba(16, 185, 129, 0.4); }
.status-paused { background: var(--accent-orange); }
.status-other { background: var(--text-muted); }
.status-text { font-size: 11px; color: var(--text-secondary); }

/* ============ ALERTS ============ */
.alerts-list { display: flex; flex-direction: column; gap: 6px; }

.alert-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    font-size: 12px;
}

.severity-warning { border-left: 3px solid var(--accent-orange); }
.severity-critical { border-left: 3px solid var(--accent-red); }
.severity-info { border-left: 3px solid var(--accent-blue); }

.alert-time { color: var(--text-muted); font-size: 11px; min-width: 120px; }

.alert-badge {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}
.severity-warning .alert-badge { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.severity-critical .alert-badge { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.severity-info .alert-badge { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

.alert-rule { color: var(--text-secondary); min-width: 140px; }
.alert-msg { color: var(--text-primary); }

/* ============ LOGIN ============ */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-card {
    width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo {
    font-size: 36px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.login-header h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.login-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.login-form { display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input {
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    outline: none;
    transition: border-color 0.2s;
}
.form-group input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}
.form-group input::placeholder { color: var(--text-muted); }

.btn-login {
    padding: 11px 16px;
    background: var(--gradient-main);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    margin-top: 4px;
}
.btn-login:hover { opacity: 0.9; }
.btn-login:active { transform: scale(0.98); }

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}
.login-footer p {
    font-size: 11px;
    color: var(--text-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .kpi-grid-5 { grid-template-columns: repeat(3, 1fr); }
    .charts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { display: none; }
    .content { margin-left: 0; padding: 16px; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .kpi-grid-5 { grid-template-columns: repeat(2, 1fr); }
    .clients-grid { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; gap: 12px; }
}