/**
 * PULSE STUDIO OS — UI Component Library
 * Reusable buttons, badges, form controls, tables, modals, cards, tabs, and alerts.
 */

@import url('tokens.css');

/* ====================================================================
   BUTTONS
   ==================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-lg);
  padding: 0 var(--space-4);
  height: 38px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn:active {
  transform: scale(0.98);
}

.btn i, .btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Button Sizes */
.btn-sm {
  height: 30px;
  padding: 0 var(--space-3);
  font-size: var(--text-2xs);
  border-radius: var(--radius-md);
}

.btn-lg {
  height: 46px;
  padding: 0 var(--space-6);
  font-size: var(--text-sm);
  border-radius: var(--radius-xl);
}

.btn-icon {
  width: 38px;
  padding: 0;
}

.btn-icon.btn-sm {
  width: 30px;
}

/* Button Variants */
.btn-primary {
  background: #e01b28;
  color: #ffffff;
  box-shadow: none;
}

.btn-primary:hover {
  background: #c31a21;
  box-shadow: none;
}

.btn-secondary {
  background-color: var(--studio-850);
  color: var(--text-main);
  border-color: var(--border-medium);
}

.btn-secondary:hover {
  background-color: var(--studio-800);
  border-color: var(--border-medium);
  color: var(--text-strong);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border-color: var(--border-medium);
}

.btn-outline:hover {
  background-color: var(--studio-850);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

.btn-danger {
  background-color: var(--color-rose-bg);
  color: var(--color-rose-light);
  border-color: var(--color-rose-border);
}

.btn-danger:hover {
  background-color: var(--color-rose);
  color: #ffffff;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background-color: var(--studio-850);
  color: var(--text-strong);
}

/* ====================================================================
   BADGES & PILLS
   ==================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  font-size: var(--text-2xs);
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  line-height: 1.2;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
}

/* Badge Color Themes */
.badge-indigo {
  background-color: var(--color-sky-bg);
  color: var(--color-sky-light);
  border-color: var(--color-sky-border);
}

.badge-brand {
  background-color: var(--color-primary-bg);
  color: var(--color-primary-light);
  border-color: var(--color-primary-border);
}

.badge-emerald {
  background-color: var(--color-emerald-bg);
  color: var(--color-emerald-light);
  border-color: var(--color-emerald-border);
}

.badge-amber {
  background-color: var(--color-amber-bg);
  color: var(--color-amber-light);
  border-color: var(--color-amber-border);
}

.badge-rose {
  background-color: var(--color-rose-bg);
  color: var(--color-rose-light);
  border-color: var(--color-rose-border);
}

.badge-sky {
  background-color: var(--color-sky-bg);
  color: var(--color-sky-light);
  border-color: var(--color-sky-border);
}

.badge-purple {
  background-color: var(--color-purple-bg);
  color: var(--color-purple-light);
  border-color: var(--color-purple-border);
}

.badge-pink {
  background-color: var(--color-pink-bg);
  color: var(--color-pink-light);
  border-color: var(--color-pink-border);
}

.badge-orange {
  background-color: var(--color-orange-bg);
  color: var(--color-orange-light);
  border-color: var(--color-orange-border);
}

.badge-cyan {
  background-color: var(--color-cyan-bg);
  color: var(--color-cyan-light);
  border-color: var(--color-cyan-border);
}

.badge-slate {
  background-color: var(--studio-800);
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

/* ====================================================================
   CARDS & PANELS
   ==================================================================== */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-strong);
}

.card-subtitle {
  font-size: var(--text-2xs);
  color: var(--text-muted);
  margin-top: 2px;
}

.card-body {
  padding: var(--space-5);
}

.card-footer {
  padding: var(--space-3-5) var(--space-5);
  border-top: 1px solid var(--border-subtle);
  background-color: var(--surface-translucent);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Stat KPI Cards */
.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-2);
}

.stat-card { background-color: var(--sc-bg, var(--color-primary)); border-color: transparent; --sc-fg: #fff; color: var(--sc-fg); }
.stat-card.border-indigo { --sc-bg: var(--color-primary); }
.stat-card.border-sky    { --sc-bg: var(--kite-blue-700); }
.stat-card.border-amber  { --sc-bg: var(--kite-amber-700); }
.stat-card.border-emerald{ --sc-bg: var(--kite-blue-700); }
.stat-card.border-purple { --sc-bg: var(--kite-red-500); }
.stat-card .stat-card-label, .stat-card .stat-card-value, .stat-card .stat-card-footer, .stat-card svg { color: var(--sc-fg); }
.stat-card .stat-card-label, .stat-card .stat-card-footer { opacity: .85; }
.stat-card .badge { background: #fff; color: var(--sc-bg); border-color: transparent; }

.stat-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-card-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
}

.stat-card-value {
  /* Poppins for figures: Sour Gummy's slashed zero reads as "Ø" in a metric */
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.1;
  margin: var(--space-1) 0;
}

.stat-card-footer {
  font-size: var(--text-2xs);
  color: var(--text-dim);
}

/* ====================================================================
   FORMS & INPUTS
   ==================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5);
  margin-bottom: var(--space-4);
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-control {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-3-5);
  background-color: var(--studio-950);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  color: var(--text-strong);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-bg);
  outline: none;
}

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

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

textarea.form-control {
  height: auto;
  min-height: 80px;
  padding: var(--space-3);
  resize: vertical;
}

.form-hint {
  font-size: var(--text-2xs);
  color: var(--text-dim);
}

.form-error {
  font-size: var(--text-2xs);
  color: var(--color-rose-light);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Checkbox & Radio */
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2-5);
  font-size: var(--text-xs);
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"],
.checkbox-label input[type="radio"] {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-xs);
  background-color: var(--studio-950);
  border: 1px solid var(--border-medium);
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* ====================================================================
   TABLES
   ==================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--text-xs);
}

.data-table thead tr {
  background-color: var(--surface-translucent);
  border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-2xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-3-5) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: var(--studio-850);
}

/* ====================================================================
   MODALS & DIALOGS
   ==================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(20, 32, 48, 0.5);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--studio-900);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-2xl);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal-dialog {
  transform: scale(1);
}

.modal-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--studio-950);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-strong);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  background-color: var(--studio-850);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-strong);
  background-color: var(--studio-800);
}

.modal-body {
  padding: var(--space-5);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--space-3-5) var(--space-5);
  border-top: 1px solid var(--border-subtle);
  background-color: var(--studio-950);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2-5);
}

/* ====================================================================
   TABS NAVIGATION
   ==================================================================== */
.tabs-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  padding: var(--space-2-5) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-strong);
  background-color: var(--studio-900);
}

.tab-btn.active {
  color: var(--color-primary-light);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(224, 27, 40, 0.08);
}

/* ====================================================================
   AVATARS
   ==================================================================== */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xs);
  color: #ffffff;
  background-color: var(--color-primary);
  flex-shrink: 0;
  overflow: hidden;
  user-select: none;
}

.avatar-sm {
  width: 28px;
  height: 28px;
  font-size: var(--text-2xs);
  border-radius: var(--radius-md);
}

.avatar-lg {
  width: 48px;
  height: 48px;
  font-size: var(--text-sm);
  border-radius: var(--radius-xl);
}

.avatar-xl {
  width: 72px;
  height: 72px;
  font-size: var(--text-lg);
  border-radius: var(--radius-2xl);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ====================================================================
   TOAST NOTIFICATIONS
   ==================================================================== */
.toast-container {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2-5);
  max-width: 380px;
  width: 100%;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--studio-900);
  border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
  padding: var(--space-3-5) var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  box-shadow: var(--shadow-xl);
  font-size: var(--text-xs);
  animation: fadeIn var(--transition-fast) forwards;
}

.toast-indigo { background-color: var(--color-primary); border-color: transparent; color: #fff; }
.toast-emerald { background-color: #158f63; border-color: transparent; color: #fff; }
.toast-amber   { background-color: var(--color-amber); border-color: transparent; color: #3d2a00; }
.toast-rose    { background-color: var(--kite-red-600, #c31a21); border-color: transparent; color: #fff; }

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 700;
  margin-bottom: 2px;
}

.toast-message {
  color: var(--text-muted);
  line-height: 1.4;
}

.toast-close {
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px;
}

.toast-close:hover {
  color: var(--text-strong);
}

/* ====================================================================
   EMPTY STATES
   ==================================================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-12) var(--space-6);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-xl);
  background-color: var(--surface-translucent);
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-xl);
  background-color: var(--studio-850);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  margin-bottom: var(--space-3);
}

.empty-state-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-strong);
}

.empty-state-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  max-width: 360px;
  margin-top: var(--space-1);
  margin-bottom: var(--space-4);
}