:root {
  --bg: #0f1419;
  --surface: #1a1f2e;
  --surface2: #222838;
  --border: #2a3040;
  --text: #e0e0e0;
  --text-muted: #8899aa;
  --accent: #4fc3f7;
  --green: #66bb6a;
  --red: #ef5350;
  --orange: #ffa726;
  --purple: #ab47bc;
  --radius: 8px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Login */
.login-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
}
.login-box {
  background: var(--surface); padding: 40px; border-radius: 12px;
  border: 1px solid var(--border); width: 380px; text-align: center;
}
.login-box h1 { font-size: 1.4rem; margin-bottom: 8px; }
.login-box p { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 24px; }
.login-box input {
  width: 100%; padding: 12px 16px; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 0.95rem; margin-bottom: 16px;
}
.login-box input:focus { outline: none; border-color: var(--accent); }
.login-box button {
  width: 100%; padding: 12px; background: var(--accent); color: #000; border: none;
  border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; cursor: pointer;
}
.login-box button:hover { opacity: 0.9; }
.login-error { color: var(--red); font-size: 0.85rem; margin-top: 8px; }

/* Layout */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px; background: var(--surface); border-right: 1px solid var(--border);
  padding: 20px 0; flex-shrink: 0; position: fixed; height: 100vh; overflow-y: auto;
  z-index: 100;
}
.sidebar-brand { padding: 0 20px 20px; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.sidebar-brand h2 { font-size: 1rem; color: var(--accent); }
.sidebar-brand small { color: var(--text-muted); font-size: 0.7rem; }
.sidebar a {
  display: flex; align-items: center; gap: 10px; padding: 10px 20px; color: var(--text-muted);
  text-decoration: none; font-size: 0.85rem; transition: all 0.15s;
}
.sidebar a:hover { background: var(--surface2); color: var(--text); }
.sidebar a.active { background: var(--surface2); color: var(--accent); border-left: 3px solid var(--accent); }
.sidebar .badge {
  margin-left: auto; background: var(--accent); color: #000; font-size: 0.65rem;
  padding: 2px 6px; border-radius: 10px; font-weight: 600;
}
.sidebar-footer { position: absolute; bottom: 0; width: 100%; padding: 12px 20px; border-top: 1px solid var(--border); }
.sidebar-footer small { color: var(--text-muted); font-size: 0.7rem; }

.main { margin-left: 220px; flex: 1; padding: 24px; min-height: 100vh; }

/* Date Range Picker */
.date-range-bar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 16px; margin-bottom: 20px;
}
.date-range-presets { display: flex; gap: 4px; flex-wrap: wrap; }
.date-btn {
  padding: 6px 14px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-muted); font-size: 0.8rem; cursor: pointer;
  font-family: inherit; transition: all 0.15s;
}
.date-btn:hover { border-color: var(--accent); color: var(--text); }
.date-btn.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }
.date-range-custom { display: flex; align-items: center; gap: 8px; }
.date-range-custom input[type="date"] {
  padding: 5px 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 0.8rem; font-family: inherit;
}
.date-range-label {
  margin-left: auto; color: var(--text-muted); font-size: 0.8rem; font-weight: 500;
}

/* Header */
.page-header {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px;
}
.page-header h1 { font-size: 1.4rem; }
.header-controls { display: flex; gap: 10px; align-items: center; }
.header-controls select, .header-controls input {
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  padding: 6px 12px; border-radius: var(--radius); font-size: 0.8rem;
}
.btn {
  padding: 6px 16px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; font-size: 0.8rem;
}
.btn:hover { background: var(--surface2); }
.btn-primary { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }
.btn-primary:hover { opacity: 0.9; }
.btn-sm { padding: 4px 10px; font-size: 0.75rem; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; position: relative;
}
.card-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.card-value { font-size: 1.8rem; font-weight: 700; line-height: 1; }
.card-sub { font-size: 0.75rem; color: var(--text-muted); margin-top: 6px; }
.card-trend { font-size: 0.8rem; margin-top: 4px; }
.card-trend.up { color: var(--green); }
.card-trend.down { color: var(--red); }
.card-trend.flat { color: var(--text-muted); }

/* Source tooltip */
[data-source] { cursor: help; }
[data-source]:hover::after {
  content: attr(data-source);
  position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  background: #000; color: var(--text); padding: 8px 12px; border-radius: 6px;
  font-size: 0.7rem; white-space: nowrap; z-index: 1000; border: 1px solid var(--border);
  max-width: 400px; white-space: normal; line-height: 1.4;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
/* Fallback tooltip for wide tooltips */
.tooltip {
  display: none; position: fixed; background: #111; color: var(--text);
  padding: 10px 14px; border-radius: 6px; font-size: 0.72rem; z-index: 9999;
  border: 1px solid var(--border); max-width: 420px; line-height: 1.5;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5); pointer-events: none;
}
.tooltip.visible { display: block; }

/* Health grid */
.health-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-bottom: 24px; }
.health-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; display: flex; align-items: center; gap: 10px;
}
.health-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.health-dot.green { background: var(--green); }
.health-dot.yellow { background: var(--orange); }
.health-dot.red { background: var(--red); }
.health-name { font-size: 0.8rem; font-weight: 500; }
.health-visits { font-size: 0.7rem; color: var(--text-muted); }

/* Tables */
.table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; margin-bottom: 24px; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; padding: 12px 16px; background: var(--surface2); color: var(--text-muted); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; }
td { padding: 10px 16px; border-top: 1px solid var(--border); }
tr:hover td { background: rgba(79,195,247,0.05); }

/* Charts */
.chart-container { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 24px; }
.chart-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }
.chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.chart-row.three { grid-template-columns: 1fr 1fr 1fr; }

/* Forms */
.form-section { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; }
.form-section h3 { font-size: 1rem; margin-bottom: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 0.75rem; color: var(--text-muted); }
.form-group input, .form-group textarea {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: var(--radius); font-size: 0.85rem;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-actions { margin-top: 16px; display: flex; gap: 10px; }

/* Revenue gauge */
.gauge-container { text-align: center; padding: 20px; }
.gauge-value { font-size: 2.5rem; font-weight: 800; }
.gauge-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.gauge-bar { height: 12px; background: var(--surface2); border-radius: 6px; overflow: hidden; margin: 16px 0; }
.gauge-fill { height: 100%; border-radius: 6px; transition: width 0.5s ease; }

/* Section headers */
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.section-header h2 { font-size: 1.1rem; }
.section-tag {
  font-size: 0.65rem; padding: 3px 8px; border-radius: 4px;
  text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600;
}
.tag-live { background: rgba(102,187,106,0.15); color: var(--green); }
.tag-manual { background: rgba(255,167,38,0.15); color: var(--orange); }
.tag-coming { background: rgba(171,71,188,0.15); color: var(--purple); }

/* Goals grid */
.goals-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-bottom: 24px; }
.goal-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; border-left: 3px solid var(--border);
}
.goal-card.has-conversions { border-left-color: var(--green); }
.goal-card.no-conversions { border-left-color: var(--border); }
.goal-site { font-size: 0.7rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.5px; }
.goal-name { font-size: 0.85rem; font-weight: 600; margin: 4px 0; }
.goal-metric { font-size: 1.3rem; font-weight: 700; }
.goal-pattern { font-size: 0.7rem; color: var(--text-muted); margin-top: 4px; }

/* Geo bar */
.geo-bar { display: flex; height: 24px; border-radius: 4px; overflow: hidden; margin: 8px 0; }
.geo-segment { display: flex; align-items: center; justify-content: center; font-size: 0.65rem; font-weight: 600; color: #000; }

/* Ramadan banner */
.ramadan-banner {
  background: linear-gradient(135deg, #1a472a 0%, #0d2818 100%);
  border: 1px solid #2d5a3f; border-radius: var(--radius); padding: 20px 24px;
  margin-bottom: 24px; display: flex; justify-content: space-between; align-items: center;
}
.ramadan-info h3 { color: #66bb6a; font-size: 1rem; }
.ramadan-info p { color: var(--text-muted); font-size: 0.8rem; margin-top: 4px; }
.ramadan-countdown { text-align: right; }
.ramadan-days { font-size: 2rem; font-weight: 800; color: #66bb6a; }
.ramadan-sub { font-size: 0.75rem; color: var(--text-muted); }

/* Loading */
.loading { text-align: center; padding: 40px; color: var(--text-muted); }
.spinner { display: inline-block; width: 24px; height: 24px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Data Freshness Indicator */
.data-freshness {
  font-size: 0.68rem;
  color: var(--text-muted);
  padding: 4px 0;
  opacity: 0.7;
  line-height: 1.4;
}
.data-freshness .freshness-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 4px;
  vertical-align: middle;
}

/* Hamburger Button */
.hamburger-btn {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.4rem;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.hamburger-btn:hover {
  background: var(--surface2);
}

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 90;
}
.sidebar-overlay.active {
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    display: block;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .hamburger-btn {
    display: flex;
  }
  .main { margin-left: 0; padding: 16px; padding-top: 64px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .chart-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}