/* Reusable components */

/* Cards */
.card {
  background: var(--surf);
  border: 1px solid var(--border);
  border-radius: var(--rad-lg);
  padding: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  position: relative;
}

.card:hover {
  border-color: var(--border-glow);
}

/* Card inner header row */
.card-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 8px;
  flex-wrap: wrap;
}

.card-title-sm {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  color: var(--text-dim);
}

.card-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
}

/* Section label */
.section-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.6px;
  color: var(--text-muted);
  margin: 20px 0 9px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 9.5px;
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  width: 100%;
  background: var(--surf-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--rad-md);
  padding: 9px 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* Form grids */
.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

/* Pill selects / mini controls */
.pill-select {
  padding: 4px 9px;
  border-radius: var(--rad-md);
  border: 1px solid var(--border);
  background: var(--surf-elevated);
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-sans);
  outline: none;
  cursor: pointer;
}

.pill-input {
  background: var(--surf-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--rad-sm);
  padding: 5px 8px;
  font-size: 12px;
  font-family: var(--font-sans);
  outline: none;
}

.pill-input:focus { border-color: var(--primary); }

/* Pill badges */
.pill-badge {
  font-size: 10px;
  padding: 2px 9px;
  border-radius: 20px;
  background: var(--surf-elevated);
  color: var(--text-dim);
  font-weight: 600;
  white-space: nowrap;
}

.pill-badge.danger { background: rgba(196,58,42,.12); color: var(--danger); }
.pill-badge.success { background: rgba(42,158,95,.12); color: #2a9e5f; }
.pill-badge.warn { background: rgba(212,126,26,.12); color: var(--warning); }

/* Perf info badge */
.perf-info-badge {
  font-size: 10px;
  color: var(--text-dim);
  padding: 3px 9px;
  background: var(--surf-elevated);
  border-radius: var(--rad-sm);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
}

.perf-info-badge b { color: var(--text-primary); }

/* 5-stat performance grid */
.perf-5grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 9px;
  margin-bottom: 12px;
}

.pstat {
  background: var(--surf-elevated);
  border-radius: var(--rad-md);
  padding: 11px 8px;
  text-align: center;
  border: 1px solid var(--border);
}

.pval {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 3px;
  color: var(--text-primary);
}

.pval-blue { color: var(--primary); }
.pval-accent { color: var(--accent); }
.pval-warn { color: var(--warning); }
.pval-green { color: #2a9e5f; }
.pval-danger { color: var(--danger); }
.pval-purple { color: #9b59b6; }

.plbl { font-size: 9px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.4px; }
.psub { font-size: 9px; color: var(--text-dim); margin-top: 2px; }

/* Progress bar */
.prog-bar-bg {
  width: 100%;
  height: 8px;
  background: var(--surf-elevated);
  border-radius: 5px;
  overflow: hidden;
}

.prog-bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.6s ease;
}

/* Mode bar */
.mode-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}

.mode-pills {
  display: flex;
  background: var(--surf-elevated);
  border: 1px solid var(--border);
  border-radius: var(--rad-md);
  overflow: hidden;
}

.mode-pill {
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-family: var(--font-sans);
  white-space: nowrap;
}

.mode-pill.active { background: var(--primary); color: white; }
.mode-pill.active.rev { background: #9b59b6; }

.mode-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(92,107,192,.12);
  color: var(--primary);
  font-weight: 700;
}

.mode-badge.rev { background: rgba(155,89,182,.12); color: #9b59b6; }

/* Tab bar */
.tab-bar {
  display: flex;
  gap: 2px;
  background: var(--surf-elevated);
  border-radius: var(--rad-md);
  padding: 3px;
  border: 1px solid var(--border);
}

.tab-btn {
  padding: 4px 11px;
  border-radius: calc(var(--rad-md) - 2px);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.tab-btn.active {
  background: var(--surf);
  color: var(--text-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}

/* Data table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.data-table th {
  text-align: left;
  padding: 7px 8px;
  color: var(--text-muted);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 8px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surf-elevated); }

/* Type tags */
.type-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 9px;
  font-weight: 700;
}

.tag-study { background: var(--surf-elevated); color: var(--text-muted); }
.tag-rev { background: rgba(42,158,95,.1); color: #2a9e5f; }

/* Revision pill badges */
.rev-pill { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 9px; font-weight: 700; text-transform: uppercase; }
.rev-done { background: rgba(42,158,95,.1); color: #2a9e5f; }
.rev-prog { background: rgba(212,126,26,.1); color: var(--warning); }
.rev-pend { background: var(--surf-elevated); color: var(--text-muted); }

/* Delete / Restore buttons */
.del-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 9px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  font-family: var(--font-sans);
}

.del-btn:hover { background: var(--danger); color: white; border-color: var(--danger); }

.res-btn {
  background: transparent;
  border: 1px solid rgba(42,158,95,.4);
  color: #2a9e5f;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 9px;
  cursor: pointer;
  font-family: var(--font-sans);
}

/* Insights grid */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 9px;
}

.ibox {
  background: var(--surf-elevated);
  border-radius: var(--rad-md);
  padding: 12px;
  border: 1px solid var(--border);
}

.ilbl { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); margin-bottom: 4px; }
.ival { font-family: var(--font-display); font-size: 16px; font-weight: 700; }
.isub { font-size: 10px; color: var(--text-dim); margin-top: 2px; }

/* Modal box */
.modal-box {
  background: var(--surf);
  border: 1px solid var(--border);
  border-radius: var(--rad-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  padding: 24px;
  max-width: 380px;
  width: 90%;
}

.modal-box h3 { font-size: 15px; font-weight: 800; margin-bottom: 8px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--rad-md);
  font-weight: 600;
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(145deg, var(--primary), #7986cb);
  color: white;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }

.btn-secondary {
  background: var(--surf-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover { background: rgba(255,255,255,0.05); border-color: var(--text-dim); }

.btn-danger {
  background: rgba(239,83,80,.1);
  color: var(--danger);
  border: 1px solid rgba(239,83,80,.3);
}

.btn-danger:hover { background: var(--danger); color: white; }

/* Auth */
.auth-box {
  width: 100%;
  max-width: 480px;
  margin: 40px auto;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

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

/* Toasts */
.toast-item {
  background: var(--surf-elevated);
  border: 1px solid var(--border);
  color: white;
  padding: 12px 18px;
  border-radius: var(--rad-sm);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast-err { border-left: 3px solid var(--danger); }
.toast-ok { border-left: 3px solid #2a9e5f; }
.toast-info { border-left: 3px solid var(--primary); }

/* Grid systems */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }

/* Status Badges (old compat) */
.badge {
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-info { background: rgba(92,107,192,.1); color: var(--primary); border: 1px solid rgba(92,107,192,.2); }
.badge-success { background: rgba(42,158,95,.1); color: #2a9e5f; border: 1px solid rgba(42,158,95,.2); }

/* Progress bars (old compat) */
.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: var(--surf-elevated);
  border-radius: 5px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.5s ease;
}

/* Glassmorphism utility */
.glass {
  background: var(--surf-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.05);
}

/* Spinner */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin: 0 auto 16px;
}

.screen-center {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-dim);
}

.fade-in { animation: fadeIn 0.4s ease forwards; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin { to { transform: rotate(360deg); } }

.text-danger { color: var(--danger) !important; }
.text-dim { color: var(--text-dim) !important; }

/* Responsive tweaks */
@media (max-width: 1100px) {
  .insights-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .perf-5grid { grid-template-columns: repeat(3, 1fr); }
  .form-grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .perf-5grid { grid-template-columns: repeat(2, 1fr); }
  .insights-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid-3 { grid-template-columns: 1fr; }
  .card { padding: 14px; }
}