/* AI VOICEBOT PLATFORM — Global Styles */
:root {
  --bg-primary: #0a1628;
  --bg-secondary: #111d35;
  --bg-card: #162039;
  --bg-card-hover: #1c2a4a;
  --bg-input: #1a2542;
  --border: #2a3a5c;
  --border-light: #3a4a6c;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --green: #22c55e;
  --green-dim: rgba(34, 197, 94, 0.15);
  --red: #ef4444;
  --red-dim: rgba(239, 68, 68, 0.15);
  --yellow: #eab308;
  --yellow-dim: rgba(234, 179, 8, 0.15);
  --blue: #3b82f6;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Navigation */
.navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-right: 2rem;
}

.navbar-brand .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: 4px;
  flex: 1;
}

.navbar-nav a {
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.navbar-nav a:hover, .navbar-nav a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.navbar-nav a.active {
  color: var(--accent);
  background: rgba(99, 102, 241, 0.1);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-user {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Layout */
.container { max-width: 1400px; margin: 0 auto; padding: 2rem; }
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.page-header h1 { font-size: 1.8rem; font-weight: 700; }
.page-header p { color: var(--text-secondary); margin-top: 4px; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.2s;
}
.card:hover { border-color: var(--border-light); }
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.card-header h2 { font-size: 1.1rem; font-weight: 600; }
.card-header h3 { font-size: 1rem; font-weight: 600; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .container { padding: 1rem; }
  .navbar { padding: 0 1rem; flex-wrap: wrap; height: auto; min-height: 64px; }
  .navbar-nav { order: 3; width: 100%; overflow-x: auto; padding: 4px 0 8px; gap: 2px; }
  .navbar-nav a { font-size: 0.8rem; padding: 6px 10px; white-space: nowrap; }
  .navbar-right { margin-left: auto; }
  .navbar-user { display: none; }
  .page-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .filters { flex-direction: column; }
  .filters .form-control { width: 100%; min-width: unset; }
  .tabs { overflow-x: auto; flex-wrap: nowrap; }
  .tab { white-space: nowrap; font-size: 0.8rem; padding: 8px 12px; }
}

/* Stats */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.stat-value { font-size: 2rem; font-weight: 700; margin: 4px 0; }
.stat-change { font-size: 0.85rem; }
.stat-change.positive { color: var(--green); }
.stat-change.negative { color: var(--red); }
.stat-icon { font-size: 1.8rem; opacity: 0.6; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 0 20px var(--accent-glow); }
.btn-success { background: var(--green); color: white; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--red); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* Tables */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 12px 16px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); border-bottom: 1px solid var(--border); font-weight: 600; }
td { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
tr:hover td { background: var(--bg-card-hover); }

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-green { background: var(--green-dim); color: var(--green); }
.badge-red { background: var(--red-dim); color: var(--red); }
.badge-yellow { background: var(--yellow-dim); color: var(--yellow); }
.badge-blue { background: rgba(59,130,246,0.15); color: var(--blue); }
.badge-gray { background: rgba(100,116,139,0.2); color: var(--text-muted); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 600px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.modal-header h2 { font-size: 1.2rem; }
.modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: 1.5rem; cursor: pointer; padding: 4px;
}
.modal-close:hover { color: var(--text-primary); }
.modal-footer { display: flex; gap: 12px; justify-content: flex-end; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--border); }

/* Chat / Simulation */
.chat-container {
  height: 400px;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.chat-message {
  max-width: 80%;
  padding: 10px 16px;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
}
.chat-message.assistant {
  align-self: flex-start;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-message.user {
  align-self: flex-end;
  background: var(--accent);
  color: white;
  border-bottom-right-radius: 4px;
}
.chat-meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.chat-input-area {
  display: flex;
  gap: 12px;
  padding: 1rem;
  border-top: 1px solid var(--border);
}
.chat-input-area input { flex: 1; }

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.comparison-table th {
  background: var(--bg-secondary);
  padding: 16px;
  font-size: 0.9rem;
  text-transform: none;
}
.comparison-table td { padding: 14px 16px; }
.comparison-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.comparison-table .winner { color: var(--green); font-weight: 600; }
.comparison-table .loser { color: var(--text-muted); }

/* Flow builder */
.flow-canvas {
  position: relative;
  min-height: 500px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 20px 20px;
}
.flow-node {
  position: absolute;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  min-width: 200px;
  cursor: move;
  transition: border-color 0.2s;
  z-index: 10;
}
.flow-node:hover { border-color: var(--accent); }
.flow-node-type { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 4px; }
.flow-node-label { font-weight: 600; font-size: 0.9rem; }
.flow-node-content { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }
.flow-node.greeting { border-left: 4px solid var(--green); }
.flow-node.question { border-left: 4px solid var(--blue); }
.flow-node.response { border-left: 4px solid var(--accent); }
.flow-node.transfer { border-left: 4px solid var(--yellow); }
.flow-node.hangup { border-left: 4px solid var(--red); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.tab {
  padding: 8px 20px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Filters */
.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: center;
}
.filters .form-control { width: auto; min-width: 160px; }

/* Tab Content */
.tab-content { animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Range inputs */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 6px var(--accent-glow);
}

/* Checkbox styling */
input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Code blocks */
code {
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--accent);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}
.empty-state p { margin-top: 0.5rem; font-size: 0.9rem; }

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow);
}
.login-card h1 { text-align: center; margin-bottom: 0.5rem; }
.login-card p { text-align: center; color: var(--text-secondary); margin-bottom: 2rem; }

/* Toast */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: slideIn 0.3s ease;
}
.toast.success { border-left: 4px solid var(--green); }
.toast.error { border-left: 4px solid var(--red); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Landing-specific */
.hero {
  text-align: center;
  padding: 6rem 2rem 4rem;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}
.hero h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
.hero h1 span { background: linear-gradient(135deg, var(--accent), #a78bfa, var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.2rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 2rem; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; padding: 2rem 0; }
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; } .hero h1 { font-size: 2rem; } }

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: all 0.3s;
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 8px 32px var(--accent-glow); }
.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* Footer */
.footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Pulse animation */
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.pulse { animation: pulse 2s infinite; }

/* Loading */
.loading { display: flex; align-items: center; justify-content: center; padding: 3rem; color: var(--text-muted); }
.spinner { width: 24px; height: 24px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; margin-right: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Enhanced card transitions */
.card { transition: all 0.2s ease; }
.stat-card { transition: all 0.2s ease; }
.stat-card:hover { border-color: var(--border-light); transform: translateY(-1px); }