/* ===== APP SHELL ===== */
.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 5%;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links { display: flex; align-items: center; gap: 24px; }

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--text-primary); }

.nav-cta {
  background: var(--accent);
  color: #07090f;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  font-family: var(--font-display);
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--accent-hover); }

.app-body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 5%;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.card + .card { margin-top: 20px; }

/* ===== HEADINGS ===== */
.page-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.page-sub {
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* ===== STATS ROW ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.stat-card .stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-card .stat-lbl {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===== TABLES ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
}

.data-table td {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td { background: var(--bg-accent); }

.data-table a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
}
.data-table a:hover { color: var(--accent); }

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--font-display);
}

.badge-pending   { background: rgba(139,147,167,0.15); color: var(--text-muted); }
.badge-researching { background: rgba(232,160,37,0.15); color: var(--accent); }
.badge-researched  { background: rgba(100,180,120,0.15); color: #6dbf85; }
.badge-emailed     { background: rgba(80,160,230,0.15);  color: #70b5f9; }
.badge-error       { background: rgba(230,80,80,0.15);   color: #f97070; }
.badge-draft       { background: rgba(139,147,167,0.15); color: var(--text-muted); }
.badge-sent        { background: rgba(100,180,120,0.15); color: #6dbf85; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 24px; }

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.form-divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 16px 0;
  position: relative;
}

.form-divider::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: var(--border);
}

.form-divider span {
  background: var(--bg-card);
  padding: 0 12px;
  position: relative;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: var(--font-display);
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #07090f;
}
.btn-primary:hover { background: var(--accent-hover); }

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

.btn-danger {
  background: rgba(230,80,80,0.15);
  color: #f97070;
  border: 1px solid rgba(230,80,80,0.25);
}
.btn-danger:hover { background: rgba(230,80,80,0.25); }

.btn-sm { padding: 7px 14px; font-size: 0.8rem; }

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* ===== ERROR / ALERT ===== */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-size: 0.9rem;
}
.alert-error   { background: rgba(230,80,80,0.12); color: #f97070; border: 1px solid rgba(230,80,80,0.25); }
.alert-success { background: rgba(100,180,120,0.12); color: #6dbf85; border: 1px solid rgba(100,180,120,0.25); }
.alert-info    { background: var(--accent-glow); color: var(--accent); border: 1px solid rgba(232,160,37,0.25); }

/* ===== RESEARCH PROFILE ===== */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 680px) { .profile-grid { grid-template-columns: 1fr; } }

.profile-item {}
.profile-item-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
  margin-bottom: 6px;
}
.profile-item-value {
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ===== EMAIL EDITOR ===== */
.email-subject-input {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  padding: 8px 0;
  margin-bottom: 20px;
}

.email-body-textarea {
  min-height: 320px;
  font-family: monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  line-height: 1.7;
}

/* ===== LOADING SPINNER ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state h3 {
  font-family: var(--font-display);
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .app-body { padding: 24px 5%; }
  .page-title { font-size: 1.5rem; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

/* ===== LANDING CTA ===== */
.hero-cta-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 48px; }

.cta-primary {
  background: var(--accent);
  color: #07090f;
  padding: 16px 36px;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s;
}
.cta-primary:hover { background: var(--accent-hover); }

.cta-secondary {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.2s;
}
.cta-secondary:hover { color: var(--text-primary); }

/* stat-number / stat-label for landing page */
.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}