/* ─── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f5f0;
  --sidebar-bg: #fafaf7;
  --card-bg: #ffffff;
  --border: #e8e8e0;
  --text: #1a1a1a;
  --text-secondary: #6b6b60;
  --accent: #2d6a4f;
  --accent-light: #e8f5e9;
  --red: #d32f2f;
  --red-light: #ffebee;
  --orange: #e65100;
  --orange-light: #fff3e0;
  --blue: #1565c0;
  --blue-light: #e3f2fd;
  --green: #2e7d32;
  --green-light: #e8f5e9;
  --purple: #6a1b9a;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --radius: 10px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}

/* ─── App Layout ───────────────────────────────────────────────── */
.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ─── Sidebar ──────────────────────────────────────────────────── */
.sidebar {
  width: 220px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
}

.brand-name { font-weight: 700; font-size: 15px; }
.brand-sub { font-size: 11px; color: var(--text-secondary); }

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--text-secondary);
  transition: all 0.15s;
  text-align: left;
  width: 100%;
}

.nav-item:hover { background: var(--border); color: var(--text); }
.nav-item.active { background: var(--accent-light); color: var(--accent); font-weight: 600; }

.nav-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}

.nav-item.active .nav-dot { background: var(--accent); }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}

.sync-status { font-size: 11px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.sync-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }

/* ─── Main ─────────────────────────────────────────────────────── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}

.header h1 { font-size: 18px; font-weight: 700; }

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

.platform-toggle {
  display: flex;
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.ptoggle {
  padding: 6px 14px;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
}

.ptoggle.active { background: var(--accent); color: white; font-weight: 600; }
.ptoggle:hover:not(.active) { background: var(--border); }

.badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: var(--orange-light);
  color: var(--orange);
}

.badge.live { background: var(--green-light); color: var(--green); }

/* ─── Panels ───────────────────────────────────────────────────── */
.panels {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
}

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

/* ─── KPI Cards ────────────────────────────────────────────────── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.kpi-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; margin-bottom: 6px; }
.kpi-value { font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.kpi-change { font-size: 12px; font-weight: 500; }
.kpi-change.up { color: var(--green); }
.kpi-change.down { color: var(--green); }
.kpi-change.warn { color: var(--orange); }

/* ─── Section Headers ──────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-header h2 { font-size: 15px; font-weight: 700; }

/* ─── Platform Cards ───────────────────────────────────────────── */
.platform-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.platform-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.platform-card.apple { border-left: 3px solid #333; }
.platform-card.google { border-left: 3px solid var(--blue); }

.platform-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-weight: 600;
  font-size: 14px;
}

.platform-icon { font-size: 18px; }

.platform-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.platform-metrics > div { display: flex; flex-direction: column; gap: 2px; }
.pm-label { font-size: 11px; color: var(--text-secondary); }
.pm-value { font-size: 16px; font-weight: 700; }

/* ─── Tables ───────────────────────────────────────────────────── */
.table-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}

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

.data-table thead { background: var(--bg); }

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

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table tbody tr:hover { background: #fafaf7; }
.data-table tbody tr:last-child td { border-bottom: none; }

/* Status pills */
.status {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.status.running, .status.enabled { background: var(--green-light); color: var(--green); }
.status.paused { background: var(--orange-light); color: var(--orange); }
.status.budget-low { background: var(--red-light); color: var(--red); }

/* Quality badges */
.quality {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
}

.quality.a { background: var(--green-light); color: var(--green); }
.quality.b { background: var(--blue-light); color: var(--blue); }
.quality.c { background: var(--orange-light); color: var(--orange); }
.quality.d { background: var(--red-light); color: var(--red); }

/* Platform badge in table */
.platform-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.platform-badge.apple { background: #f5f5f5; color: #333; }
.platform-badge.google { background: var(--blue-light); color: var(--blue); }

/* ─── ROAS Tracker ─────────────────────────────────────────────── */
.roas-container { margin-bottom: 28px; }

.roas-input-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.roas-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  gap: 20px;
}

.roas-row:last-child { border-bottom: none; }

.roas-campaign { display: flex; flex-direction: column; gap: 4px; min-width: 200px; }
.roas-campaign strong { font-size: 14px; }
.roas-spend { font-size: 12px; color: var(--text-secondary); }

.roas-fields { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.roas-fields label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

.roas-fields input {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  width: 140px;
  outline: none;
  transition: border-color 0.15s;
}

.roas-fields input:focus { border-color: var(--accent); }

.roas-result {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg);
  color: var(--text-secondary);
  min-width: 160px;
  text-align: center;
}

.roas-result.positive { background: var(--green-light); color: var(--green); }
.roas-result.negative { background: var(--red-light); color: var(--red); }

/* ─── Network source badge ─────────────────────────────────────── */
.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 13px;
}

.source-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.source-dot.search { background: #4285f4; }
.source-dot.partners { background: #a0c4ff; }
.source-dot.display { background: #fbbc04; }
.source-dot.youtube { background: #ea4335; }
.source-dot.apple { background: #333; }

.efficiency-bar {
  display: inline-block;
  height: 6px;
  border-radius: 3px;
  background: var(--accent);
}

/* Campaign type badge */
.type-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  background: var(--bg);
  color: var(--text-secondary);
}

/* Action buttons */
.action-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 6px;
  font-size: 11px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}

.action-btn:hover { background: var(--bg); border-color: var(--accent); }
.action-btn.pause { color: var(--orange); }
.action-btn.enable { color: var(--green); }

/* ─── Keyword Filters ──────────────────────────────────────────── */
.keyword-filters {
  display: flex;
  gap: 8px;
}

.keyword-filters select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 12px;
  background: var(--card-bg);
  cursor: pointer;
}

/* ─── AI Advisor ───────────────────────────────────────────────── */
.advisor-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 140px);
}

.advisor-chat {
  flex: 1;
  overflow-y: auto;
  padding: 0 0 16px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-message {
  display: flex;
  gap: 10px;
  max-width: 85%;
}

.chat-message.bot { align-self: flex-start; }
.chat-message.user { align-self: flex-end; flex-direction: row-reverse; }

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  background: var(--bg);
}

.chat-message.user .chat-avatar { background: var(--accent-light); }

.chat-bubble {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 13.5px;
  line-height: 1.6;
  box-shadow: var(--shadow);
}

.chat-message.user .chat-bubble {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.chat-bubble p { margin-bottom: 8px; }
.chat-bubble p:last-child { margin-bottom: 0; }
.chat-bubble strong { font-weight: 600; }

.chat-bubble h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.chat-bubble table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
  font-size: 12px;
}

.chat-bubble table th,
.chat-bubble table td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.chat-bubble table th {
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg);
}

.chat-bubble code {
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
}

.chat-bubble pre {
  background: var(--bg);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 10px 0;
  font-size: 12px;
}

.chat-bubble pre code { background: none; padding: 0; }

.chat-bubble ul, .chat-bubble ol {
  padding-left: 20px;
  margin: 8px 0;
}

.chat-bubble li { margin-bottom: 4px; }

/* Advisor chips */
.advisor-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0;
}

.chip {
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 20px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text);
}

.chip:hover { background: var(--accent-light); border-color: var(--accent); color: var(--accent); }

/* Advisor input */
.advisor-input {
  display: flex;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.advisor-input input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.15s;
}

.advisor-input input:focus { border-color: var(--accent); }

.advisor-input button {
  padding: 12px 24px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.advisor-input button:hover { opacity: 0.9; }
.advisor-input button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Loading indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 0;
}

.typing-indicator span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-secondary);
  animation: typing 1.2s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: scale(0.8); }
  30% { opacity: 1; transform: scale(1); }
}

/* ─── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { width: 60px; }
  .sidebar-brand > div, .nav-item span:not(.nav-dot) { display: none; }
  .sidebar-brand { justify-content: center; padding: 16px 8px; }
  .nav-item { justify-content: center; padding: 12px; }
  .sidebar-footer { display: none; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .platform-cards { grid-template-columns: 1fr; }
  .panels { padding: 16px; }
}

@media (max-width: 600px) {
  .kpi-row { grid-template-columns: 1fr; }
  .header { flex-direction: column; gap: 10px; align-items: flex-start; }
  .platform-toggle { display: none; }
}