/* ============================================================
   Crowny Academy — Component Library (verdant 톤)
   ============================================================ */

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 8px 18px;
  border-radius: var(--radius);
  font-family: var(--font-base);
  font-size: var(--text-base);
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  user-select: none;
  line-height: 1;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-sm { padding: 5px 12px; font-size: var(--text-sm); }
.btn-lg { padding: 11px 24px; font-size: var(--text-md); }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  box-shadow: 0 2px 8px var(--color-accent-glow);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-fg-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-ghost {
  background: transparent;
  color: var(--color-fg-secondary);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) { opacity: 0.88; }

/* ===== Cards ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), border-color var(--transition);
  overflow: hidden;
}
.card:hover { box-shadow: var(--shadow-sm); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color-light);
}
.card-header h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-fg-primary);
}

.card-body { padding: var(--space-5); }
.card-footer {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border-color-light);
  background: var(--color-bg-secondary);
}

/* stat card */
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  position: relative;
}
.stat-label { font-size: var(--text-xs); color: var(--color-fg-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.stat-value { font-size: var(--text-3xl); font-weight: 700; color: var(--color-fg-primary); line-height: 1; }
.stat-sub { font-size: var(--text-sm); color: var(--color-fg-secondary); margin-top: 4px; }
.stat-icon { position: absolute; top: var(--space-4); right: var(--space-4); font-size: 22px; opacity: 0.5; }
.stat-trend { display: inline-flex; align-items: center; gap: 3px; font-size: var(--text-xs); font-weight: 600; margin-top: 6px; }
.stat-trend.up { color: var(--color-success); }
.stat-trend.down { color: var(--color-danger); }

/* ===== Forms ===== */
.form-group { margin-bottom: var(--space-4); }
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-fg-secondary);
  margin-bottom: 5px;
}
.form-hint { font-size: var(--text-xs); color: var(--color-fg-muted); margin-top: 3px; }
.form-error { font-size: var(--text-xs); color: var(--color-danger); margin-top: 3px; }

.input, .select, textarea.input {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-base);
  font-size: var(--text-base);
  color: var(--color-fg-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}
.input:focus, .select:focus, textarea.input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}
.input::placeholder { color: var(--color-fg-muted); }
.input.error { border-color: var(--color-danger); }

.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237a8a7e' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

.checkbox-label, .radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-base);
  color: var(--color-fg-primary);
}
.checkbox, .radio { width: 16px; height: 16px; accent-color: var(--color-accent); cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.form-actions { display: flex; gap: var(--space-3); justify-content: flex-end; margin-top: var(--space-5); }
@media (max-width: 600px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}

/* ===== Tags & Badges ===== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-xl);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--radius);
  font-size: var(--text-xs);
  font-weight: 600;
}

.tag-green, .badge-green   { background: var(--color-success-bg); color: var(--color-success); }
.tag-yellow, .badge-yellow { background: var(--color-warning-bg); color: var(--color-warning); }
.tag-red, .badge-red       { background: var(--color-danger-bg);  color: var(--color-danger);  }
.tag-blue, .badge-blue     { background: var(--color-info-bg);    color: var(--color-info);    }
.tag-gray, .badge-gray     { background: var(--color-surface-3);  color: var(--color-fg-secondary); }
.tag-accent, .badge-accent { background: var(--color-accent-bg);  color: var(--color-accent);  }

/* ===== Alerts ===== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  border-left: 3px solid;
  font-size: var(--text-base);
}
.alert-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.alert-body h4 { font-size: var(--text-base); font-weight: 600; margin-bottom: 2px; }
.alert-body p  { font-size: var(--text-sm); }

.alert-info    { background: var(--color-info-bg);    border-color: var(--color-info);    color: var(--color-info); }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning); color: var(--color-warning); }
.alert-danger  { background: var(--color-danger-bg);  border-color: var(--color-danger);  color: var(--color-danger); }
.alert-success { background: var(--color-success-bg); border-color: var(--color-success); color: var(--color-success); }

/* ===== Spinner & Skeleton ===== */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.spinner-sm { width: 14px; height: 14px; border-width: 2px; }
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }

@keyframes shimmer {
  0% { background-position: -300px 0; }
  100% { background-position: 300px 0; }
}
.skeleton {
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--color-surface-3) 25%, var(--color-bg-secondary) 50%, var(--color-surface-3) 75%);
  background-size: 600px 100%;
  animation: shimmer 1.3s infinite;
}
.skeleton-text { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 22px; width: 55%; margin-bottom: 12px; }
.skeleton-block { height: 80px; }

/* ===== Modal ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26,46,29,0.4);
  backdrop-filter: blur(4px);
  z-index: 800;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-backdrop.show { display: flex; }

.modal {
  background: var(--color-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 94%;
  max-width: 540px;
  max-height: 88vh;
  overflow-y: auto;
  padding: var(--space-6);
  position: relative;
}
.modal-sm { max-width: 380px; }
.modal-lg { max-width: 720px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}
.modal-title { font-size: var(--text-xl); font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--color-fg-muted);
  line-height: 1;
  padding: 0 4px;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--color-fg-primary); }

/* ===== Tabs ===== */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border-color-light);
  gap: var(--space-1);
  margin-bottom: var(--space-5);
}
.tab-btn {
  padding: 8px var(--space-4);
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-base);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-fg-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
}
.tab-btn:hover { color: var(--color-fg-primary); }
.tab-btn.active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ===== Table ===== */
.table-wrap {
  background: var(--color-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.table-wrap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color-light);
}
.table-wrap-header h3 { font-size: var(--text-md); font-weight: 600; }

table { width: 100%; border-collapse: collapse; }
th {
  padding: 10px var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}
td {
  padding: 11px var(--space-4);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--border-color-light);
  color: var(--color-fg-primary);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-accent-bg); }

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: var(--space-7) var(--space-5);
  color: var(--color-fg-muted);
}
.empty-state-icon { font-size: 40px; margin-bottom: var(--space-3); }
.empty-state h4 { font-size: var(--text-md); color: var(--color-fg-secondary); margin-bottom: var(--space-2); }
.empty-state p  { font-size: var(--text-sm); }

/* ===== Divider ===== */
.divider {
  height: 1px;
  background: var(--border-color-light);
  margin: var(--space-5) 0;
}

/* ===== Upload Zone ===== */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-bg-secondary);
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--color-accent);
  background: var(--color-accent-bg);
}
.upload-zone-icon { font-size: 36px; margin-bottom: var(--space-3); }
.upload-zone p { font-size: var(--text-base); color: var(--color-fg-secondary); }
.upload-zone small { font-size: var(--text-xs); color: var(--color-fg-muted); }

/* ===== Progress ===== */
.progress {
  height: 6px;
  background: var(--color-surface-3);
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: var(--color-accent);
  border-radius: 99px;
  transition: width 0.6s ease;
}
.progress-bar.warning { background: var(--color-warning); }
.progress-bar.danger  { background: var(--color-danger);  }

/* ===== Timeline ===== */
.timeline { padding: 0; list-style: none; }
.timeline-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-color-light);
}
.timeline-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 5px;
}
.timeline-content { flex: 1; }
.timeline-time  { font-size: var(--text-xs); color: var(--color-fg-muted); }
.timeline-title { font-size: var(--text-sm); margin-top: 2px; }

/* ===== Radar Chart Container ===== */
.chart-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

/* ===== Mandalart Grid ===== */
.mandalart-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 2px;
  background: var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}
.mandalart-cell {
  background: var(--color-surface);
  padding: var(--space-2);
  min-height: 56px;
  font-size: var(--text-xs);
  cursor: pointer;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.3;
}
.mandalart-cell:hover { background: var(--color-accent-bg); }
.mandalart-cell.center { background: var(--color-accent); color: #fff; font-weight: 600; }
.mandalart-cell.block-center { background: var(--color-accent-bg); font-weight: 600; color: var(--color-accent); }
.mandalart-cell.done { background: var(--color-success-bg); }

/* ===== Scrollbar === */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-fg-muted); }