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

:root {
  --bg-primary: #06060b;
  --bg-card: #0d0d15;
  --bg-elevated: #13131f;
  --bg-input: #0a0a14;
  --accent: #6366f1;
  --accent-bright: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-hover: #4f46e5;
  --text-primary: #e8eaf0;
  --text-secondary: #8b8fa3;
  --text-muted: #555770;
  --border: #1e1e30;
  --border-hover: #2e2e48;
  --gradient-start: #6366f1;
  --gradient-end: #a855f7;
  --green: #22c55e;
  --green-bg: rgba(34, 197, 94, 0.1);
  --yellow: #eab308;
  --yellow-bg: rgba(234, 179, 8, 0.1);
  --red: #ef4444;
  --red-bg: rgba(239, 68, 68, 0.1);
  --blue: #3b82f6;
  --blue-bg: rgba(59, 130, 246, 0.1);
  --sidebar-width: 240px;
  --radius: 10px;
  --radius-sm: 6px;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Syne', sans-serif; line-height: 1.2; }

/* Grain texture */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ─── Layout ──────────────────────────────────────────────── */
#app {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ─── Sidebar ─────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 10;
}

.sidebar-brand {
  padding: 24px 20px;
  cursor: pointer;
}

.brand-text {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.15s;
}

.nav-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.nav-item.active { background: var(--accent-glow); color: var(--accent-bright); }
.nav-item-muted { color: var(--text-muted); }
.nav-item-muted:hover { color: var(--text-secondary); }

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

/* ─── Main Content ────────────────────────────────────────── */
#content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 32px 40px;
  max-width: calc(100vw - var(--sidebar-width));
  min-height: 100vh;
}

#page-content { max-width: 1100px; }

/* ─── Typography ──────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 800;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* ─── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card-hover {
  transition: all 0.2s;
  cursor: pointer;
}

.card-hover:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
}

/* ─── Stat Cards ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

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

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.stat-value {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  margin-top: 8px;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card.accent .stat-value {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  background-clip: text;
}

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--border-hover); background: var(--bg-card); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-elevated); }

.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.15); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-icon { padding: 8px; }

.btn-group { display: flex; gap: 8px; }

/* ─── Forms ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
  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: inherit;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

td {
  padding: 14px 16px;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

.td-primary { color: var(--text-primary); font-weight: 500; }

/* ─── Badges / Tags ───────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-draft { background: var(--bg-elevated); color: var(--text-muted); }
.badge-active, .badge-approved { background: var(--green-bg); color: var(--green); }
.badge-researching, .badge-queued { background: var(--blue-bg); color: var(--blue); }
.badge-new { background: var(--accent-glow); color: var(--accent-bright); }
.badge-email_generated { background: var(--yellow-bg); color: var(--yellow); }
.badge-sent, .badge-contacted { background: var(--green-bg); color: var(--green); }
.badge-replied, .badge-meeting_booked { background: var(--green-bg); color: var(--green); }
.badge-bounced, .badge-not_interested { background: var(--red-bg); color: var(--red); }
.badge-paused { background: var(--yellow-bg); color: var(--yellow); }
.badge-completed { background: var(--green-bg); color: var(--green); }
.badge-opened { background: var(--blue-bg); color: var(--blue); }

/* ─── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-bright);
}

.empty-state h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto 24px;
}

/* ─── Email Preview ───────────────────────────────────────── */
.email-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.email-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background 0.15s;
}

.email-header:hover { background: var(--bg-elevated); }

.email-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.email-to {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.email-company {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.email-subject {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 2px;
}

.email-body-wrap {
  padding: 0 20px 20px;
  display: none;
}

.email-body-wrap.open { display: block; }

.email-body {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

.email-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ─── Sequence Card ───────────────────────────────────────── */
.sequence-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sequence-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sequence-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
}

.sequence-info { flex: 1; }

.sequence-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.sequence-icp {
  color: var(--text-muted);
  font-size: 0.82rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sequence-stats {
  display: flex;
  gap: 24px;
  align-items: center;
}

.sequence-stat {
  text-align: center;
}

.sequence-stat-value {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.sequence-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ─── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-body { padding: 24px; }

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ─── Loading ─────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-lg {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

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

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ─── Toast ───────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  animation: slideIn 0.2s ease;
  max-width: 400px;
}

.toast-success { background: var(--green); color: #fff; }
.toast-error { background: var(--red); color: #fff; }
.toast-info { background: var(--accent); color: #fff; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ─── Prospect Detail ─────────────────────────────────────── */
.prospect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 0.85rem;
}

.prospect-field-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.prospect-field-value {
  color: var(--text-primary);
  word-break: break-all;
}

/* ─── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  #sidebar {
    width: 60px;
    overflow: hidden;
  }
  .sidebar-brand { padding: 20px 12px; }
  .brand-text { font-size: 0; }
  .nav-item { padding: 10px; justify-content: center; font-size: 0; gap: 0; }
  .nav-item svg { min-width: 20px; }
  .sidebar-footer { padding: 8px; }
  #content { margin-left: 60px; padding: 24px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr; }
  .sequence-card { flex-direction: column; align-items: flex-start; gap: 12px; }
  .sequence-stats { width: 100%; justify-content: flex-start; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ─── Utilities ───────────────────────────────────────────── */
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.85rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Back button */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-decoration: none;
  margin-bottom: 16px;
  transition: color 0.15s;
}
.back-link:hover { color: var(--text-primary); }

/* Divider */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab {
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: inherit;
}

.tab:hover { color: var(--text-secondary); }
.tab.active { color: var(--accent-bright); border-bottom-color: var(--accent); }