@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #faf8f5;
  --fg: #1a1f2e;
  --card: #ffffff;
  --card-fg: #1a1f2e;
  --primary: #5b4cdb;
  --primary-fg: #ffffff;
  --secondary: #f2f3f6;
  --secondary-fg: #5a6077;
  --muted: #f0f1f4;
  --muted-fg: #7c8194;
  --accent: #edebfa;
  --accent-fg: #4f3cc9;
  --destructive: #e53e3e;
  --success: #2f9e6e;
  --warning: #e8930c;
  --info: #2b7de9;
  --border: #e4e5ec;
  --radius: 0.625rem;
  --shadow-card: 0 2px 8px -2px rgb(0 0 0 / 0.06), 0 0 0 1px rgb(0 0 0 / 0.03);
  --shadow-elevated: 0 8px 24px -6px rgb(0 0 0 / 0.08);
  --font-heading: 'DM Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; border-color: var(--border); }
body { font-family: var(--font-body); background: var(--bg); color: var(--fg); -webkit-font-smoothing: antialiased; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 260px; background: var(--card); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 40; }
.sidebar-header { padding: 20px 16px; display: flex; align-items: center; gap: 12px; }
.sidebar-logo { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), #7c6ef0); display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; box-shadow: 0 2px 8px rgb(91 76 219 / 0.3); }
.sidebar-logo svg { width: 20px; height: 20px; }
.sidebar-brand-name { font-weight: 700; font-size: 15px; color: var(--fg); letter-spacing: -0.02em; line-height: 1; }
.sidebar-brand-sub { font-size: 11px; color: var(--muted-fg); margin-top: 4px; font-weight: 500; }
.sidebar-content { flex: 1; padding: 8px 12px; overflow-y: auto; }
.sidebar-section-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.15em; color: rgba(124,129,148,0.6); font-weight: 600; margin-bottom: 8px; padding: 0 12px; }
.sidebar-nav { list-style: none; margin-bottom: 12px; }
.sidebar-nav li { margin-bottom: 4px; }
.sidebar-nav a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; font-size: 13px; font-weight: 500; color: var(--muted-fg); transition: all 0.2s; }
.sidebar-nav a:hover { background: var(--accent); color: var(--accent-fg); }
.sidebar-nav a.active { background: var(--primary); color: var(--primary-fg); box-shadow: 0 2px 8px rgb(91 76 219 / 0.3); }
.sidebar-nav a.active svg { color: var(--primary-fg); }
.sidebar-nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-nav a .chevron { margin-left: auto; width: 14px; height: 14px; opacity: 0.7; }
.sidebar-separator { height: 1px; background: var(--border); margin: 12px 0; opacity: 0.5; }
.sidebar-footer { padding: 16px; }
.sidebar-status { border-radius: 12px; background: rgba(240,241,244,0.5); border: 1px solid rgba(228,229,236,0.5); padding: 12px 14px; display: flex; align-items: center; gap: 8px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.status-text { font-size: 11px; font-weight: 500; color: var(--muted-fg); }

.main-area { flex: 1; margin-left: 260px; display: flex; flex-direction: column; min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; height: 56px; border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.8); backdrop-filter: blur(8px); padding: 0 20px; }
.topbar-title { font-family: var(--font-heading); font-weight: 700; font-size: 15px; color: var(--fg); }
.topbar-right { display: flex; align-items: center; gap: 6px; }
.icon-btn { width: 32px; height: 32px; border-radius: 8px; border: none; background: transparent; display: flex; align-items: center; justify-content: center; color: var(--muted-fg); transition: background 0.15s; position: relative; }
.icon-btn:hover { background: var(--muted); }
.icon-btn svg { width: 16px; height: 16px; }
.notif-dot { position: absolute; top: 6px; right: 6px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.avatar-btn { width: 28px; height: 28px; border-radius: 50%; background: rgba(91,76,219,0.1); color: var(--primary); font-size: 10px; font-weight: 700; border: none; display: flex; align-items: center; justify-content: center; transition: box-shadow 0.15s; }
.avatar-btn:hover { box-shadow: 0 0 0 2px var(--border); }

.page-content { flex: 1; padding: 20px 28px; }

/* Cards */
.card { background: var(--card); border-radius: 12px; box-shadow: var(--shadow-card); }
.metric-card { padding: 20px; }
.metric-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.metric-card-title { font-size: 12px; font-weight: 500; color: var(--muted-fg); }
.metric-icon { padding: 8px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.metric-icon svg { width: 16px; height: 16px; }
.metric-icon.primary { background: rgba(91,76,219,0.08); color: var(--primary); }
.metric-icon.success { background: rgba(47,158,110,0.08); color: var(--success); }
.metric-icon.warning { background: rgba(232,147,12,0.1); color: var(--warning); }
.metric-icon.info { background: rgba(43,125,233,0.08); color: var(--info); }
.metric-value { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: var(--fg); letter-spacing: -0.02em; }
.metric-change { font-size: 11px; color: var(--success); font-weight: 500; margin-top: 4px; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

/* Chart card */
.chart-card { padding: 24px; }
.chart-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.chart-title { font-family: var(--font-heading); font-weight: 700; font-size: 14px; color: var(--fg); }
.chart-subtitle { font-size: 12px; color: var(--muted-fg); margin-top: 2px; }
.chart-badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; color: var(--success); font-weight: 600; background: rgba(47,158,110,0.08); border-radius: 6px; padding: 2px 8px; }
.chart-badge svg { width: 12px; height: 12px; }
.chart-container { height: 256px; position: relative; }

/* Tables */
.table-card { overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
thead th { padding: 12px 16px; text-align: left; font-size: 12px; font-weight: 600; color: var(--muted-fg); border-bottom: 1px solid var(--border); background: transparent; }
tbody td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid rgba(228,229,236,0.5); }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: rgba(240,241,244,0.4); }
tbody tr:last-child td { border-bottom: none; }

.direction-tag { border: 1px solid transparent; }
.direction-tag-inbound { background: rgba(47, 158, 110, 0.12); color: var(--success); border-color: rgba(47, 158, 110, 0.25); }
.direction-tag-outbound { background: rgba(91, 76, 219, 0.10); color: var(--primary); border-color: rgba(91, 76, 219, 0.22); }
.avatar-sm { width: 28px; height: 28px; border-radius: 50%; font-size: 9px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; background: var(--accent); color: var(--accent-fg); }
.name-cell { display: flex; align-items: center; gap: 10px; }
.name-cell span { font-weight: 500; color: var(--fg); }
.text-muted { color: var(--muted-fg); font-size: 13px; }
.mono { font-family: monospace; font-size: 12px; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 500; padding: 2px 8px; border-radius: 6px; border: 1px solid transparent; }
.badge-active { background: rgba(47,158,110,0.08); color: var(--success); border-color: rgba(47,158,110,0.2); }
.badge-active::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.badge-paused { background: var(--muted); color: var(--muted-fg); }
.badge-admin { background: rgba(91,76,219,0.08); color: var(--primary); border-color: rgba(91,76,219,0.2); }
.badge-agent { background: rgba(47,158,110,0.08); color: var(--success); border-color: rgba(47,158,110,0.2); }
.badge-viewer { background: var(--muted); color: var(--muted-fg); }
.tag { font-size: 12px; font-weight: 500; background: var(--muted); padding: 2px 8px; border-radius: 6px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500; border: none; transition: all 0.15s; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--fg); }
.btn-outline:hover { background: var(--accent); color: var(--accent-fg); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn svg { width: 14px; height: 14px; }

/* Forms */
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 12px; font-weight: 500; color: var(--muted-fg); margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; background: var(--card); color: var(--fg); outline: none; transition: border-color 0.15s; }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(91,76,219,0.1); }
.info-field { display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 8px; background: rgba(240,241,244,0.3); padding: 10px 12px; }
.info-field svg { width: 14px; height: 14px; color: var(--muted-fg); }
.info-field span { font-size: 14px; font-weight: 500; color: var(--fg); }

/* Tabs */
.tabs-list { display: flex; gap: 4px; background: rgba(240,241,244,0.5); border-radius: 8px; padding: 4px; margin-bottom: 20px; width: fit-content; }
.tab-btn { padding: 6px 16px; border-radius: 6px; border: none; background: transparent; font-size: 12px; font-weight: 500; color: var(--muted-fg); transition: all 0.15s; }
.tab-btn.active { background: var(--card); color: var(--fg); box-shadow: 0 1px 3px rgb(0 0 0 / 0.06); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Status options */
.status-option.active { background: var(--primary); color: var(--primary-fg); box-shadow: 0 2px 8px rgb(91 76 219 / 0.3); }
.status-option.active:hover { background: var(--primary); }

/* Info banner */
.info-banner { border-radius: 12px; background: rgba(237,235,250,0.4); border: 1px solid var(--border); padding: 12px 16px; margin-bottom: 20px; }
.info-banner p { font-size: 12px; color: var(--fg); }
.info-banner strong { font-weight: 600; }

/* Filters */
.filters { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.filter-group label { display: block; font-size: 12px; font-weight: 500; color: var(--muted-fg); margin-bottom: 4px; }
.filter-select { width: 176px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 12px; background: var(--card); color: var(--fg); outline: none; }

/* Section card with icon */
.section-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.section-icon { padding: 10px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.section-icon svg { width: 18px; height: 18px; }
.section-icon.primary { background: rgba(91,76,219,0.08); color: var(--primary); }
.section-icon.warning { background: rgba(232,147,12,0.1); color: var(--warning); }
.section-title { font-family: var(--font-heading); font-weight: 700; color: var(--fg); }
.section-subtitle { font-size: 12px; color: var(--muted-fg); margin-top: 2px; }

.grid-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

/* Search bar */
.search-wrap { position: relative; flex: 1; max-width: 280px; }
.search-wrap svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--muted-fg); }
.search-wrap input { padding-left: 36px; }

.flex-between { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }

/* Pie legend */
.pie-legend { display: flex; justify-content: center; gap: 20px; margin-top: 8px; }
.pie-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted-fg); }
.pie-legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* Responsive */
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-area { margin-left: 0; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-form { grid-template-columns: 1fr; }
}

.max-w-xl { max-width: 560px; }
.max-w-2xl { max-width: 672px; }
.mb-20 { margin-bottom: 20px; }
.space-y > * + * { margin-top: 24px; }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 1000; align-items: center; justify-content: center; }
.modal-overlay.open { display: flex; }
.modal { background: var(--card); border-radius: 12px; width: 90%; max-width: 560px; padding: 24px; box-shadow: 0 20px 60px rgba(0,0,0,.2); max-height: 90vh; overflow: auto; display: flex; flex-direction: column; }
.modal-title { font-weight: 700; font-size: 15px; color: var(--fg); margin-bottom: 12px; }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; cursor: pointer; color: var(--muted-fg); font-size: 18px; }