/* App-specific styles */

/* ---------- Layout ---------- */

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  background: var(--tmped-navy);
  color: #fff;
  padding: var(--space-5) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.app-header h1 {
  color: #fff;
  font-size: 1.5rem;
}

.app-main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-8);
}

.app-footer {
  padding: var(--space-4) var(--space-8);
  color: var(--tmped-text-muted);
  font-size: 0.75rem;
  text-align: right;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--tmped-navy);
  color: #fff;
}
.btn-primary:hover {
  background: var(--tmped-teal);
  color: #fff;
}

.btn-secondary {
  background: #fff;
  color: var(--tmped-navy);
  border-color: var(--tmped-navy);
}
.btn-secondary:hover {
  background: var(--tmped-navy);
  color: #fff;
}

/* ---------- Section header ---------- */

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.section-header h2 { font-size: 1.5rem; }

.section-header .meta {
  color: var(--tmped-text-muted);
  font-size: 0.875rem;
}

/* ---------- Session cards ---------- */

.session-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-4);
  list-style: none;
  padding: 0;
  margin: 0;
}

.session-card {
  display: block;
  background: #fff;
  border: 1px solid var(--tmped-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  color: var(--tmped-text);
  animation: fade-in 0.25s ease both;
}
.session-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--tmped-teal);
  color: var(--tmped-text);
}

.session-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.session-card .ifu {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--tmped-navy);
}
.session-card .revision {
  color: var(--tmped-text-muted);
  font-size: 0.875rem;
  margin-left: var(--space-2);
}

.session-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  color: var(--tmped-text-muted);
  margin-bottom: var(--space-3);
}
.session-card-meta strong {
  color: var(--tmped-text);
  font-weight: 500;
}

.session-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 0.875rem;
}
.session-card-count {
  color: var(--tmped-text-muted);
}

/* ---------- Status badges ---------- */

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-status-open {
  background: var(--tmped-teal-bg);
  color: var(--tmped-teal);
}
.badge-status-closed {
  background: var(--tmped-gray-bg);
  color: var(--tmped-text-muted);
}

/* ---------- Severity badges (used on session detail) ---------- */

.badge-severity-blocker { background: var(--tmped-red);     color: #fff; }
.badge-severity-major   { background: var(--tmped-amber);   color: var(--tmped-navy); }
.badge-severity-minor   { background: var(--tmped-gray-bg); color: var(--tmped-text); }

/* ---------- Disposition badges ---------- */

.badge-disp-pending        { background: var(--tmped-gray-bg); color: var(--tmped-text-muted); }
.badge-disp-resolved       { background: #d1fae5;             color: #065f46; }
.badge-disp-disputed       { background: var(--tmped-amber-bg); color: #92400e; }
.badge-disp-falsepositive  { background: var(--tmped-teal-bg); color: var(--tmped-teal); }

/* ---------- Skeleton loading ---------- */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--tmped-bg-alt) 0%,
    #eef1f5 50%,
    var(--tmped-bg-alt) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
  color: transparent;
}

.skeleton-card {
  height: 140px;
  border-radius: var(--radius-lg);
}

@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Empty state ---------- */

.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  color: var(--tmped-text-muted);
  background: #fff;
  border: 1px dashed var(--tmped-border);
  border-radius: var(--radius-lg);
}
.empty-state h3 {
  color: var(--tmped-text);
  margin-bottom: var(--space-2);
}

/* ---------- Error state ---------- */

.error-banner {
  background: var(--tmped-red-bg);
  color: var(--tmped-red);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
}