/* ── Root vars ── */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --sidebar-w: 240px;
  --bg: #0f172a;
  --surface: #1e293b;
  --surface2: #283548;
  --border: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

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

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  transition: transform .2s;
}
.sidebar-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -.5px;
}
.sidebar-brand .sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  border-radius: 0;
  transition: all .15s;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: rgba(99,102,241,.15); color: var(--primary); border-right: 3px solid var(--primary); }
.nav-item .icon { width: 18px; text-align: center; font-size: 15px; }
.sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}
.sidebar-footer .user-info {
  display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary); display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600; color: #fff;
}

/* ── Main content ── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 24px;
  min-height: 100vh;
  overflow-x: hidden;
}
.page-header {
  margin-bottom: 24px;
}
.page-header h1 {
  font-size: 22px;
  font-weight: 600;
}
.page-header p {
  color: var(--text-muted);
  margin-top: 4px;
  font-size: 13px;
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.card-header h3 {
  font-size: 15px;
  font-weight: 600;
}

/* ── Stat cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-card .stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.stat-card.pending .stat-value { color: var(--text-muted); }
.stat-card.generating .stat-value { color: var(--primary); }
.stat-card.posting .stat-value { color: var(--info); }
.stat-card.drafted .stat-value { color: var(--success); }
.stat-card.error .stat-value { color: var(--danger); }
.stat-card.total .stat-value { color: var(--warning); }

/* ── Status badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-pending { background: rgba(148,163,184,.15); color: var(--text-muted); }
.badge-generating { background: rgba(99,102,241,.2); color: #a5b4fc; }
.badge-posting { background: rgba(59,130,246,.2); color: #93c5fd; }
.badge-drafted { background: rgba(34,197,94,.2); color: #86efac; }
.badge-error { background: rgba(239,68,68,.2); color: #fca5a5; }
.badge-skipped { background: rgba(148,163,184,.1); color: #64748b; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #000; }
.btn-secondary { background: var(--surface2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--border); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 6px 8px; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(51,65,85,.5);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(30,41,59,.5); }
.td-title { max-width: 280px; }
.td-title span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-muted);
}
.form-control {
  width: 100%;
  padding: 8px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13.5px;
  transition: border-color .15s;
  outline: none;
}
.form-control:focus { border-color: var(--primary); }
.form-control::placeholder { color: #475569; }
select.form-control { cursor: pointer; }
.form-hint { font-size: 11.5px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Login page ── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo .brand { font-size: 22px; font-weight: 700; color: var(--primary); }
.login-logo .tagline { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ── Alert messages ── */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 12px;
}
.alert-error { background: rgba(239,68,68,.15); color: #fca5a5; border: 1px solid rgba(239,68,68,.3); }
.alert-success { background: rgba(34,197,94,.15); color: #86efac; border: 1px solid rgba(34,197,94,.3); }
.alert-warning { background: rgba(245,158,11,.15); color: #fcd34d; border: 1px solid rgba(245,158,11,.3); }
.alert-info { background: rgba(59,130,246,.15); color: #93c5fd; border: 1px solid rgba(59,130,246,.3); }

/* ── Activity log ── */
.log-feed {
  max-height: 320px;
  overflow-y: auto;
  font-size: 12.5px;
}
.log-entry {
  display: flex;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(51,65,85,.4);
}
.log-entry:last-child { border-bottom: none; }
.log-time { color: var(--text-muted); white-space: nowrap; min-width: 80px; }
.log-level {
  min-width: 55px;
  font-weight: 600;
  font-size: 10px;
  text-transform: uppercase;
}
.log-level.info { color: var(--info); }
.log-level.success { color: var(--success); }
.log-level.warning { color: var(--warning); }
.log-level.error { color: var(--danger); }
.log-msg { flex: 1; word-break: break-word; }

/* ── Drop zone ── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background: rgba(99,102,241,.05);
}
.drop-zone .dz-icon { font-size: 36px; margin-bottom: 12px; }
.drop-zone h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.drop-zone p { color: var(--text-muted); font-size: 13px; }
#fileInput { display: none; }

/* ── Preview table ── */
.preview-wrap {
  max-height: 520px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.preview-wrap table th { position: sticky; top: 0; background: var(--surface); z-index: 1; }
.preview-wrap table tr.row-selected td { background: rgba(99,102,241,.07); }
.preview-wrap table tr:hover td { background: rgba(99,102,241,.04); }

/* ── Progress indicator ── */
.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.2);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Status dot ── */
.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}
.dot-green { background: var(--success); box-shadow: 0 0 6px var(--success); }
.dot-red { background: var(--danger); }
.dot-yellow { background: var(--warning); }
.dot-blue { background: var(--info); animation: pulse .8s ease-in-out infinite alternate; }
@keyframes pulse { to { opacity: .4; } }

/* ── Processing banner ── */
.processing-banner {
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.3);
  border-radius: var(--radius);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 13px;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 999;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 700px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}
.modal h2 { font-size: 17px; font-weight: 600; margin-bottom: 16px; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; color: var(--text-muted);
  font-size: 18px; cursor: pointer; padding: 4px;
}
.modal-close:hover { color: var(--text); }

/* ── Content preview ── */
.content-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 13px;
  line-height: 1.7;
  max-height: 400px;
  overflow-y: auto;
}
.content-preview h1, .content-preview h2, .content-preview h3 {
  color: var(--text); margin: 12px 0 6px;
}
.content-preview p { margin-bottom: 8px; color: var(--text-muted); }
.content-preview ul, .content-preview ol { padding-left: 20px; margin-bottom: 8px; color: var(--text-muted); }

/* ── Terminal ── */
.terminal {
  background: #000;
  color: #00ff88;
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 12px;
  padding: 16px;
  border-radius: var(--radius);
  min-height: 200px;
  max-height: 400px;
  overflow-y: auto;
  line-height: 1.6;
}
.terminal .t-prompt { color: #888; }
.terminal .t-ok { color: #00ff88; }
.terminal .t-err { color: #ff4444; }
.terminal .t-warn { color: #ffaa00; }
.terminal .t-info { color: #4499ff; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Utilities ── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mb-0 { margin-bottom: 0; }
.text-muted { color: var(--text-muted); }
.text-small { font-size: 12px; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.hidden { display: none !important; }
.w-full { width: 100%; }