/*
 * GOOBER FRAMEWORK — components.css
 * Version: 1.0.0
 *
 * All reusable UI components.
 * This file NEVER changes between projects.
 * Depends on tokens from core.css.
 */

/* ============================================================
   1. BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 28px;
  font-family: var(--font-body, system-ui, sans-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius, 8px);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition, 200ms ease);
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary, #2563EB);
  outline-offset: 3px;
}

/* Primary — CTA colour */
.btn-primary {
  background: var(--color-cta, #F97316);
  color: #FFFFFF;
  border-color: var(--color-cta, #F97316);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--shadow-brand, rgba(249,115,22,0.35));
  color: #FFFFFF;
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.96);
}

/* Secondary — outlined */
.btn-secondary {
  background: transparent;
  color: var(--color-primary, #2563EB);
  border-color: var(--color-primary, #2563EB);
}

.btn-secondary:hover {
  background: var(--color-primary, #2563EB);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* White — for dark/coloured backgrounds */
.btn-white {
  background: #FFFFFF;
  color: var(--color-primary, #2563EB);
  border-color: #FFFFFF;
}

.btn-white:hover {
  background: var(--color-bg-alt, #F8FAFC);
  transform: translateY(-1px);
  color: var(--color-primary, #2563EB);
}

/* Ghost — no border */
.btn-ghost {
  background: transparent;
  color: var(--color-text, #1E293B);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--color-bg-alt, #F8FAFC);
}

/* Size variants */
.btn-sm {
  min-height: 36px;
  padding: 8px 18px;
  font-size: 0.8125rem;
}

.btn-lg {
  min-height: 56px;
  padding: 16px 36px;
  font-size: 1rem;
}

/* ============================================================
   2. CARDS
   ============================================================ */

.card {
  background: var(--color-bg, #FFFFFF);
  border-radius: var(--radius-lg, 16px);
  padding: var(--space-lg, 32px);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition, 200ms ease),
              box-shadow var(--transition, 200ms ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-bordered {
  background: var(--color-bg, #FFFFFF);
  border-radius: var(--radius-lg, 16px);
  padding: var(--space-lg, 32px);
  border: 1px solid var(--color-border, #E2E8F0);
  box-shadow: none;
  transition: border-color var(--transition, 200ms ease),
              transform var(--transition, 200ms ease);
}

.card-bordered:hover {
  border-color: var(--color-primary, #2563EB);
  transform: translateY(-2px);
}

.card-flat {
  background: var(--color-bg, #FFFFFF);
  border-radius: var(--radius-lg, 16px);
  padding: var(--space-lg, 32px);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius, 8px);
  background: var(--color-accent-light, #EFF6FF);
  color: var(--color-primary, #2563EB);
  font-size: 1.5rem;
  margin-bottom: var(--space-md, 24px);
  flex-shrink: 0;
}

.card-header {
  margin-bottom: var(--space-md, 24px);
  padding-bottom: var(--space-md, 24px);
  border-bottom: 1px solid var(--color-border, #E2E8F0);
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: var(--space-md, 24px);
  padding-top: var(--space-md, 24px);
  border-top: 1px solid var(--color-border, #E2E8F0);
}

/* ============================================================
   3. FORMS
   ============================================================ */

.form-group {
  margin-bottom: var(--space-md, 24px);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text, #1E293B);
  margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  font-family: var(--font-body, system-ui, sans-serif);
  font-size: 1rem;
  color: var(--color-text, #1E293B);
  background: var(--color-bg, #FFFFFF);
  border: 1.5px solid var(--color-border, #E2E8F0);
  border-radius: var(--radius, 8px);
  transition: border-color var(--transition, 200ms ease),
              box-shadow var(--transition, 200ms ease);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary, #2563EB);
  box-shadow: 0 0 0 3px var(--color-accent-light, #EFF6FF);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light, #94A3B8);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.6;
}

.form-select {
  appearance: none;
  -webkit-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='%23475569' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-error {
  display: block;
  color: #DC2626;
  font-size: 0.8125rem;
  margin-top: 4px;
  font-weight: 500;
}

.form-hint {
  display: block;
  color: var(--color-text-muted, #475569);
  font-size: 0.8125rem;
  margin-top: 4px;
}

.form-row {
  display: flex;
  gap: var(--space-md, 24px);
  flex-wrap: wrap;
}

.form-row .form-group {
  flex: 1;
  min-width: 200px;
}

/* ============================================================
   4. BADGES
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full, 9999px);
  line-height: 1.2;
}

.badge-primary {
  background: var(--color-accent-light, #EFF6FF);
  color: var(--color-primary, #2563EB);
}

.badge-success {
  background: #DCFCE7;
  color: #166534;
}

.badge-warning {
  background: #FEF3C7;
  color: #92400E;
}

.badge-error {
  background: #FEE2E2;
  color: #991B1B;
}

.badge-muted {
  background: var(--color-bg-alt, #F8FAFC);
  color: var(--color-text-muted, #475569);
}

/* ============================================================
   5. DIVIDERS
   ============================================================ */

.divider {
  border: none;
  border-top: 1px solid var(--color-border, #E2E8F0);
  margin: var(--space-xl, 48px) 0;
}

.divider-text {
  display: flex;
  align-items: center;
  gap: var(--space-md, 24px);
  color: var(--color-text-light, #94A3B8);
  font-size: 0.875rem;
  font-weight: 500;
  margin: var(--space-xl, 48px) 0;
}

.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--color-border, #E2E8F0);
}

/* ============================================================
   6. AVATARS
   ============================================================ */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full, 9999px);
  overflow: hidden;
  background: var(--color-accent-light, #EFF6FF);
  color: var(--color-primary, #2563EB);
  font-weight: 700;
  flex-shrink: 0;
}

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

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: 0.75rem;
}

.avatar-md {
  width: 48px;
  height: 48px;
  font-size: 1rem;
}

.avatar-lg {
  width: 72px;
  height: 72px;
  font-size: 1.5rem;
}

/* ============================================================
   7. LOADING STATES
   ============================================================ */

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border, #E2E8F0);
  border-top-color: var(--color-primary, #2563EB);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-alt, #F8FAFC) 25%,
    var(--color-border, #E2E8F0) 50%,
    var(--color-bg-alt, #F8FAFC) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius, 8px);
}

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