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

:root {
  --bg-deep: #0a0a0f;
  --bg-card: #111118;
  --bg-input: #16161f;
  --accent: #4ade80;
  --accent-dim: rgba(74, 222, 128, 0.12);
  --accent-glow: rgba(74, 222, 128, 0.25);
  --accent-hover: #22c55e;
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

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

.sidebar {
  width: 240px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 36px;
  padding: 0 8px;
  text-decoration: none;
  display: block;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.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: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover { background: var(--accent-dim); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

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

.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 32px;
  max-width: 1200px;
}

/* ─── Auth ────────────────────────────────────────── */
.auth-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
}

.auth-card h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

.auth-card .subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 32px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.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: 'DM Sans', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--accent);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

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

/* ─── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0f;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

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

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 12px;
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }

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

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-header h2 { font-size: 18px; font-weight: 600; }
.card-header h3 { font-size: 16px; font-weight: 600; }

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

.page-header h1 { font-size: 28px; font-weight: 700; }

/* ─── Stats Grid ──────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

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

.stat-card .stat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.stat-card .stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.stat-card .stat-sub {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ─── Table ───────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
}

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

th, td {
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

tr:hover td { background: rgba(255,255,255,0.02); }

/* ─── Badges ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}

.badge-green { background: var(--accent-dim); color: var(--accent); }
.badge-yellow { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.badge-red { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.badge-blue { background: rgba(59, 130, 246, 0.12); color: var(--info); }
.badge-gray { background: rgba(136, 136, 160, 0.12); color: var(--text-muted); }

.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ─── Tabs ────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
  font-family: 'DM Sans', sans-serif;
}

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

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

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  margin-bottom: 24px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Modal ───────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 { font-size: 22px; margin-bottom: 24px; }

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

/* ─── Sequence Editor ─────────────────────────────── */
.step-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  position: relative;
}

.step-card .step-badge {
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--accent);
  color: #0a0a0f;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.step-card .delay-info {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── Prospect Checkboxes ─────────────────────────── */
.prospect-check {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}

.prospect-check:hover { background: rgba(255,255,255,0.03); }

.prospect-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

/* ─── Loading ─────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  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); }
}

.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 12px;
  color: var(--text-muted);
}

/* ─── Toast ───────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 14px;
  color: var(--text-primary);
  z-index: 300;
  animation: slideUp 0.3s ease;
  max-width: 400px;
}

.toast.success { border-color: var(--accent); }
.toast.error { border-color: var(--danger); color: var(--danger); }

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ─── Activity Feed ───────────────────────────────── */
.activity-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.activity-item:last-child { border-bottom: none; }

.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.activity-dot.sent { background: var(--info); }
.activity-dot.opened { background: var(--accent); }
.activity-dot.replied { background: var(--warning); }

.activity-text { font-size: 14px; color: var(--text-secondary); flex: 1; }
.activity-text strong { color: var(--text-primary); font-weight: 500; }
.activity-time { font-size: 12px; color: var(--text-muted); white-space: nowrap; }

/* ─── Responsive ──────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-header { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ─── Misc ────────────────────────────────────────── */
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-sm { font-size: 13px; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

.search-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.search-bar .form-input {
  flex: 1;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }