/* ===== Login ===== */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  width: 340px;
  text-align: center;
  box-shadow: var(--shadow-soft);
}
.login-logo { font-size: 40px; margin-bottom: 8px; }
.login-card h1 { font-size: 20px; margin: 0 0 4px; }
.login-sub { color: var(--text-secondary); font-size: 13px; margin: 0 0 20px; }
.login-card input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 12px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  transition: border-color var(--duration-fast) var(--ease-out);
}
.login-card input:focus { border-color: var(--color-indigo); outline: none; }
.login-error { color: var(--color-rose); font-size: 12px; min-height: 16px; margin-top: 8px; }

.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--color-indigo);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: transform var(--duration-fast) var(--ease-out), background var(--duration-fast);
}
.btn-primary:hover { background: #7476F5; transform: translateY(-1px); }

/* ===== App shell ===== */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-surface-1);
  border-inline-start: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-header { display: flex; align-items: center; gap: 10px; padding: 0 8px 20px; }
.sidebar-logo { font-size: 22px; }
.sidebar-title { font-weight: 700; font-size: 15px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13.5px;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast);
}
.nav-item:hover { background: var(--bg-surface-2); color: var(--text-primary); }
.nav-item.active { background: var(--color-indigo-soft); color: var(--color-indigo); font-weight: 600; }
.nav-icon { font-size: 15px; width: 18px; text-align: center; }

.sidebar-sites { margin-top: 24px; padding: 0 8px; flex: 1; overflow-y: auto; }
.sidebar-sites-title { font-size: 11px; color: var(--text-muted); margin-bottom: 8px; letter-spacing: 0.03em; }
.sidebar-sites-list { display: flex; flex-direction: column; gap: 6px; }
.sidebar-site-row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-secondary); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.status-dot.healthy { background: var(--color-emerald); box-shadow: 0 0 8px var(--color-emerald); }
.status-dot.unhealthy { background: var(--color-rose); box-shadow: 0 0 8px var(--color-rose); }

.sidebar-logout {
  margin-top: 16px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
}
.sidebar-logout:hover { color: var(--color-rose); border-color: var(--color-rose); }

.main-content { flex: 1; padding: 28px 32px; max-width: 1600px; }

/* ===== Cards / glass ===== */
.card {
  background: rgba(20, 26, 46, 0.65);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}
.card:hover { border-color: var(--border-glow); }
.card-clickable { cursor: pointer; }
.card-clickable:hover { transform: translateY(-2px); }

.page-title { font-size: 20px; font-weight: 700; margin: 0 0 4px; }
.page-subtitle { color: var(--text-secondary); font-size: 13px; margin: 0 0 24px; }

/* ===== KPI cards ===== */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi-card { display: flex; flex-direction: column; gap: 6px; }
.kpi-label { font-size: 12.5px; color: var(--text-secondary); }
.kpi-value { font-size: 28px; font-weight: 700; }
.kpi-delta { font-size: 12.5px; display: flex; align-items: center; gap: 4px; width: fit-content; padding: 2px 8px; border-radius: 20px; }
.kpi-delta.up { color: var(--color-emerald); background: var(--color-emerald-soft); }
.kpi-delta.down { color: var(--color-rose); background: var(--color-rose-soft); }
.kpi-delta.flat { color: var(--text-muted); background: var(--bg-surface-2); }
.sparkline { width: 100%; height: 32px; margin-top: 4px; }

/* ===== Hero opportunity card ===== */
.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 28px;
  background: linear-gradient(135deg, rgba(99,102,241,0.14), rgba(245,158,11,0.08));
  border: 1px solid transparent;
  background-clip: padding-box;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(120deg, var(--color-indigo), var(--color-amber), var(--color-indigo));
  background-size: 200% 200%;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: gradient-move 6s ease infinite;
  pointer-events: none;
}
@keyframes gradient-move {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.hero-eyebrow { color: var(--color-amber); font-size: 13px; font-weight: 700; display: flex; align-items: center; gap: 6px; }
.hero-title { font-size: 22px; font-weight: 700; margin: 8px 0 6px; }
.hero-desc { color: var(--text-secondary); font-size: 14px; max-width: 640px; line-height: 1.6; }
.hero-tags { display: flex; gap: 8px; margin-top: 16px; }
.tag { font-size: 12px; padding: 4px 10px; border-radius: 20px; font-weight: 600; }
.tag-impact-high { background: var(--color-emerald-soft); color: var(--color-emerald); }
.tag-effort-low { background: var(--color-indigo-soft); color: var(--color-indigo); }
.hero-btn {
  margin-top: 18px;
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--color-indigo);
  color: white;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600; border: none;
}

/* ===== Site list rows (growing/declining) ===== */
.site-row { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border-subtle); }
.site-row:last-child { border-bottom: none; }
.site-favicon { width: 20px; height: 20px; border-radius: 4px; background: var(--bg-surface-3); flex-shrink: 0; }
.site-name { flex: 1; font-size: 13.5px; }
.mini-bar-track { width: 60px; height: 5px; border-radius: 4px; background: var(--bg-surface-3); overflow: hidden; }
.mini-bar-fill { height: 100%; border-radius: 4px; }

/* ===== Timeline ===== */
.timeline-item { display: flex; gap: 10px; padding: 10px 0; }
.timeline-icon { width: 26px; height: 26px; border-radius: 50%; background: var(--bg-surface-2); display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }
.timeline-text { font-size: 13px; color: var(--text-primary); }
.timeline-time { font-size: 11.5px; color: var(--text-muted); }

/* ===== Alerts ===== */
.alert-card { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border-radius: var(--radius-sm); margin-bottom: 8px; font-size: 13px; }
.alert-critical { background: var(--color-rose-soft); border: 1px solid rgba(244,63,94,0.3); }
.alert-warning { background: var(--color-amber-soft); border: 1px solid rgba(245,158,11,0.3); }

/* ===== Banner (stale data) ===== */
.stale-banner {
  background: var(--color-amber-soft);
  border: 1px solid rgba(245,158,11,0.35);
  color: var(--color-amber);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}

/* ===== Empty state ===== */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.empty-state-emoji { font-size: 36px; margin-bottom: 10px; }

/* ===== Health ring ===== */
.health-ring { position: relative; width: 64px; height: 64px; }
.health-ring svg { transform: rotate(-90deg); }
.health-ring-value { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; }

/* ===== Badges ===== */
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; padding: 3px 9px; border-radius: 20px; font-weight: 600; }
.badge-healthy { background: var(--color-emerald-soft); color: var(--color-emerald); }
.badge-failed { background: var(--color-rose-soft); color: var(--color-rose); }
.badge-never { background: var(--bg-surface-3); color: var(--text-muted); }

/* ===== Heatmap grid ===== */
.heatmap-wrap { overflow-x: auto; }
.heatmap-grid { display: grid; grid-auto-flow: column; gap: 4px; }
.heatmap-col { display: grid; grid-template-rows: repeat(6, 14px); gap: 4px; }
.heatmap-cell { width: 14px; height: 14px; border-radius: 3px; background: var(--bg-surface-3); }

/* ===== Tables ===== */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th { text-align: right; color: var(--text-secondary); font-weight: 600; padding: 10px 8px; border-bottom: 1px solid var(--border-subtle); font-size: 12px; }
table.data-table td { padding: 10px 8px; border-bottom: 1px solid var(--border-subtle); }
table.data-table tr:last-child td { border-bottom: none; }

/* ===== Grid spans (12-col) ===== */
.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

@media (max-width: 1100px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .span-4, .span-6, .span-8 { grid-column: span 12; }
}