/* =========================================================
   GA Analytics — Dark Theme
   ========================================================= */

:root {
    --bg:           #0d0f1a;
    --bg-2:         #151722;
    --bg-card:      #1c1f2e;
    --bg-hover:     #232739;
    --border:       #2a2d3e;
    --border-light: #1e2232;
    --accent:       #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow:  rgba(99,102,241,0.12);
    --success:      #10b981;
    --warning:      #f59e0b;
    --danger:       #ef4444;
    --info:         #3b82f6;
    --text:         #e2e8f0;
    --text-2:       #94a3b8;
    --text-3:       #64748b;
    --sidebar-w:    240px;
    --radius:       10px;
    --radius-sm:    6px;
    --shadow:       0 4px 24px rgba(0,0,0,0.4);
}

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

html { font-size: 14px; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* =========================================================
   LAYOUT
   ========================================================= */

.layout {
    display: flex;
    min-height: 100vh;
}

/* =========================================================
   SIDEBAR
   ========================================================= */

.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--bg-2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0; top: 0;
    z-index: 100;
    transition: transform .25s ease;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 18px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    width: 32px; height: 32px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px; color: #fff;
    flex-shrink: 0;
}

.logo-text {
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
}

.sidebar-nav {
    padding: 12px 10px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: var(--radius-sm);
    color: var(--text-2);
    font-size: 13.5px;
    font-weight: 500;
    transition: background .15s, color .15s;
    margin-bottom: 2px;
}

.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); }

.sidebar-bottom {
    padding: 12px 10px;
    border-top: 1px solid var(--border);
}

.account-switcher { margin-bottom: 12px; }
.account-switcher-label { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 5px; padding: 0 4px; }
.account-select {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 7px 10px;
    font-size: 12.5px;
    cursor: pointer;
    outline: none;
}
.account-select:focus { border-color: var(--accent); }

.user-info {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 6px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    margin-bottom: 8px;
}

.user-avatar { width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; }
.user-avatar-placeholder {
    width: 30px; height: 30px;
    border-radius: 50%;
    background: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 600; color: #fff;
    flex-shrink: 0;
}

.user-details { display: flex; flex-direction: column; min-width: 0; }
.user-name { font-size: 12.5px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { font-size: 11px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.logout-btn {
    display: block;
    text-align: center;
    padding: 7px;
    border-radius: var(--radius-sm);
    color: var(--text-3);
    font-size: 12.5px;
    border: 1px solid var(--border);
    transition: background .15s, color .15s;
}
.logout-btn:hover { background: var(--bg-hover); color: var(--danger); border-color: var(--danger); }

/* =========================================================
   MAIN CONTENT
   ========================================================= */

.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 56px;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky; top: 0; z-index: 50;
}

.sidebar-toggle {
    background: none; border: none; color: var(--text-2); cursor: pointer; padding: 4px; display: none;
}
.sidebar-toggle svg { width: 20px; height: 20px; }

.topbar-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.page-content {
    padding: 24px;
    flex: 1;
}

/* =========================================================
   BREADCRUMB
   ========================================================= */

.breadcrumb-link { color: var(--text-2); font-weight: 400; }
.breadcrumb-link:hover { color: var(--text); }
.breadcrumb-sep { color: var(--text-3); font-weight: 300; }

/* =========================================================
   PAGE HEADER
   ========================================================= */

.page-header {
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.page-header h2 { font-size: 20px; font-weight: 600; color: var(--text); }
.page-header .text-muted { font-size: 13px; color: var(--text-2); }

/* =========================================================
   METRIC CARDS
   ========================================================= */

.metrics-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.metrics-row-wrap { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1100px) {
    .metrics-row { grid-template-columns: repeat(2, 1fr); }
    .metrics-row-wrap { grid-template-columns: repeat(4, 1fr); }
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    transition: border-color .2s;
}

.metric-card:hover { border-color: var(--accent); }
.metric-card-primary { border-color: var(--accent); background: var(--accent-glow); }

.metric-label { font-size: 12px; color: var(--text-2); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.metric-value { font-size: 22px; font-weight: 700; color: var(--text); line-height: 1.2; }
.metric-sub { font-size: 11.5px; color: var(--text-3); margin-top: 4px; }

/* =========================================================
   CARDS
   ========================================================= */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-light);
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h3 { font-size: 14px; font-weight: 600; color: var(--text); }

/* =========================================================
   CHARTS
   ========================================================= */

.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.chart-card { margin-bottom: 0; }
.chart-wide { grid-column: 1 / -1; }

canvas { padding: 12px 16px 16px; }

.chart-metric-selector { display: flex; gap: 4px; flex-wrap: wrap; }
.chart-btn {
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-2);
    font-size: 11.5px;
    font-family: inherit;
    cursor: pointer;
    transition: all .15s;
}
.chart-btn:hover { background: var(--bg-hover); color: var(--text); }
.chart-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* =========================================================
   TABLES
   ========================================================= */

.table-wrapper { overflow-x: auto; }

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

.data-table th {
    padding: 10px 16px;
    color: var(--text-3);
    font-weight: 500;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: .04em;
    white-space: nowrap;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text);
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--bg-hover); }

.sortable-col { cursor: pointer; user-select: none; }
.sortable-col:hover { color: var(--text); }

.campaign-link { color: var(--text); font-weight: 500; }
.campaign-link:hover { color: var(--accent); }

.placement-name { max-width: 340px; }
.placement-link { color: var(--text-2); font-size: 12.5px; }
.placement-link:hover { color: var(--accent); }

.text-right { text-align: right; }
.text-center { text-align: center; }
.mono { font-variant-numeric: tabular-nums; font-size: 12.5px; }
.text-muted { color: var(--text-2); }

/* =========================================================
   BADGES
   ========================================================= */

.channel-badge, .type-badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 10.5px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .04em;
    background: var(--bg-2);
    color: var(--text-3);
    border: 1px solid var(--border);
    margin-left: 6px;
}

.type-badge { margin-left: 0; }
.type-website { background: rgba(99,102,241,.12); color: var(--accent); border-color: var(--accent); }
.type-youtube_video { background: rgba(239,68,68,.12); color: var(--danger); border-color: var(--danger); }
.type-mobile_application { background: rgba(16,185,129,.12); color: var(--success); border-color: var(--success); }

/* =========================================================
   BUTTONS
   ========================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .15s;
    white-space: nowrap;
}

.btn svg { width: 15px; height: 15px; }

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

.btn-ghost { background: transparent; color: var(--text-2); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn-xs { padding: 3px 8px; font-size: 11.5px; }

/* =========================================================
   FORMS
   ========================================================= */

.input-search {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 12.5px;
    font-family: inherit;
    outline: none;
    width: 200px;
    transition: border-color .15s;
}
.input-search:focus { border-color: var(--accent); }
.input-search::placeholder { color: var(--text-3); }

.range-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-2);
}
.range-selector select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 12.5px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
}
.range-selector select:focus { border-color: var(--accent); }

/* =========================================================
   ALERTS
   ========================================================= */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
    border-left: 3px solid;
}

.alert-error { background: rgba(239,68,68,.1); border-color: var(--danger); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,.1); border-color: var(--success); color: #6ee7b7; }
.alert-warning { background: rgba(245,158,11,.1); border-color: var(--warning); color: #fcd34d; }

/* =========================================================
   EMPTY STATES
   ========================================================= */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    text-align: center;
    color: var(--text-3);
}

.empty-state svg { width: 48px; height: 48px; margin-bottom: 16px; opacity: .5; }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--text-2); margin-bottom: 8px; }
.empty-state p { font-size: 13.5px; margin-bottom: 20px; max-width: 320px; }

.empty-state-inline {
    padding: 32px;
    text-align: center;
    color: var(--text-3);
    font-size: 13.5px;
}

/* =========================================================
   DASHBOARD SPECIFIC
   ========================================================= */

.dashboard-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
}

.account-title { font-size: 18px; font-weight: 600; }
.account-subtitle { font-size: 12.5px; color: var(--text-2); }

.dashboard-loading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 40px 0;
    color: var(--text-2);
    font-size: 13.5px;
}

/* =========================================================
   ACCOUNTS PAGE
   ========================================================= */

.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
}

.account-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color .2s, transform .15s;
    color: var(--text);
    display: block;
}
.account-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.account-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }

.account-badge {
    width: 36px; height: 36px;
    background: var(--accent);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700; color: #fff;
}

.account-id { font-size: 11px; color: var(--text-3); }
.account-name { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.account-meta { font-size: 12px; color: var(--text-3); display: flex; gap: 12px; }

/* =========================================================
   LOGIN PAGE
   ========================================================= */

body.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
    background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(99,102,241,.18), transparent);
}

.login-container { width: 100%; max-width: 420px; padding: 20px; }

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px 36px;
    box-shadow: var(--shadow);
    text-align: center;
}

.login-logo { margin-bottom: 20px; }
.logo-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    background: var(--accent);
    border-radius: 14px;
    font-size: 20px; font-weight: 800; color: #fff;
    box-shadow: 0 0 30px rgba(99,102,241,.4);
}

.login-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.login-subtitle { font-size: 13.5px; color: var(--text-2); margin-bottom: 28px; }

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px 20px;
    background: #fff;
    color: #1f2937;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background .15s;
    margin-bottom: 28px;
}
.btn-google:hover { background: #f3f4f6; color: #1f2937; }
.google-icon { width: 18px; height: 18px; }

.login-features { display: flex; flex-direction: column; gap: 10px; }
.feature-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-2); }
.feature-item svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; }

/* =========================================================
   SPINNER
   ========================================================= */

.spinner {
    width: 18px; height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

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

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: flex; }
    .charts-row { grid-template-columns: 1fr; }
    .metrics-row { grid-template-columns: repeat(2, 1fr); }
    .metrics-row-wrap { grid-template-columns: repeat(2, 1fr); }
    .page-content { padding: 16px; }
}