/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-family: inherit;
  padding: 0.75rem 2rem;
  border-radius: 0.75rem;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

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

.btn--primary {
  background-color: var(--color-skin-accent);
  color: #fff;
}

.btn--primary:hover { background-color: var(--color-skin-accent-hover); }

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-skin-text);
  color: var(--color-skin-text);
}

.btn--outline:hover { background-color: color-mix(in srgb, var(--color-skin-text) 10%, transparent); }

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

.btn--ghost:hover {
  background-color: var(--color-skin-accent);
  color: #fff;
}

.btn--round { border-radius: 9999px; }
.btn--full   { width: 100%; }
.btn--sm     { padding: 0.375rem 0.875rem; font-size: 0.875rem; }

/* Inverse: skin-text as background (white in dark, dark in light) */
.btn--inverse {
  background-color: var(--color-skin-text);
  color: var(--color-skin-base);
}

.btn--inverse:hover { background-color: var(--color-skin-text-muted); }

/* Submit button (gradient) */
.btn--submit {
  width: 100%;
  background: linear-gradient(to right, var(--color-skin-accent), var(--color-skin-accent-secondary));
  color: #fff;
  padding: 1rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-skin-accent) 30%, transparent);
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn--submit:hover {
  transform: scale(1.02);
  background: linear-gradient(to right, var(--color-skin-accent-hover), var(--color-skin-accent-hover));
}

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

/* Icon-only round buttons */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 9999px;
  transition: background-color 0.2s, color 0.2s;
}

.btn-icon--success {
  background-color: color-mix(in srgb, var(--color-skin-success) 20%, transparent);
  color: var(--color-skin-success);
}

.btn-icon--success:hover {
  background-color: var(--color-skin-success);
  color: #fff;
}

.btn-icon--error {
  background-color: color-mix(in srgb, var(--color-skin-error) 20%, transparent);
  color: var(--color-skin-error);
}

.btn-icon--error:hover {
  background-color: var(--color-skin-error);
  color: #fff;
}

.btn-icon--muted {
  color: var(--color-skin-text-muted);
}

.btn-icon--muted:hover { color: var(--color-skin-error); }

.btn-icon:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Text link buttons */
.btn-link {
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: text-decoration 0.1s;
}

.btn-link:hover { text-decoration: underline; }

.btn-link--success { color: var(--color-skin-success); }
.btn-link--accent  { color: var(--color-skin-accent); }

/* ============================================
   CARDS
   ============================================ */
.card {
  background-color: var(--color-skin-surface);
  border: 1px solid var(--color-skin-border);
  border-radius: 1rem;
  padding: 2rem;
}

.card--md { max-width: 28rem; width: 100%; }

.card--surface {
  background-color: var(--color-skin-surface);
  border: 1px solid var(--color-skin-border);
  border-radius: 0.75rem;
  overflow: hidden;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--pill { border-radius: 9999px; padding: 0.25rem 0.75rem; font-size: 0.75rem; }

.badge--accent        { background-color: var(--color-skin-accent); color: #fff; }
.badge--accent-soft   { background-color: color-mix(in srgb, var(--color-skin-accent) 10%, transparent); color: var(--color-skin-accent); }
.badge--success       { background-color: color-mix(in srgb, var(--color-skin-success) 30%, transparent); color: var(--color-skin-success); }
.badge--error         { background-color: color-mix(in srgb, var(--color-skin-error) 30%, transparent); color: var(--color-skin-error); }
.badge--warning       { background-color: color-mix(in srgb, var(--color-skin-warning) 30%, transparent); color: var(--color-skin-warning); }

/* ============================================
   ALERTS
   ============================================ */
.alert {
  padding: 1.5rem;
  border-radius: 0.75rem;
}

.alert--success {
  background-color: color-mix(in srgb, var(--color-skin-success) 20%, transparent);
  border: 1px solid var(--color-skin-success);
  color: var(--color-skin-text);
}

.alert--warning {
  background-color: color-mix(in srgb, var(--color-skin-warning) 20%, transparent);
  border: 1px solid var(--color-skin-warning);
  color: var(--color-skin-text);
}

.alert--error {
  background-color: color-mix(in srgb, var(--color-skin-error) 20%, transparent);
  border: 1px solid var(--color-skin-error);
  color: var(--color-skin-text);
}

/* ============================================
   FORMS
   ============================================ */
.form-stack { display: flex; flex-direction: column; gap: 1.5rem; }

.form-group { display: flex; flex-direction: column; gap: 0.5rem; }

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-skin-text-muted);
  padding-inline: 0.25rem;
}

.form-char-count { font-size: 0.75rem; }

.form-input {
  width: 100%;
  background-color: var(--color-skin-base);
  border: 1px solid var(--color-skin-border);
  color: var(--color-skin-text);
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder { color: color-mix(in srgb, var(--color-skin-text-muted) 50%, transparent); }

.form-input:focus {
  border-color: var(--color-skin-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-skin-accent) 20%, transparent);
}

.form-input--icon { padding-left: 2.5rem; }

.form-input--textarea { resize: vertical; }

.form-input-wrap { position: relative; }

.form-input-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-skin-text-muted);
  display: flex;
  pointer-events: none;
}

.form-hint {
  font-size: 0.75rem;
  text-align: center;
  color: var(--color-skin-text-muted);
}

/* ============================================
   THEME SWITCHER
   ============================================ */
.theme-switcher {
  display: flex;
  background-color: var(--color-skin-muted);
  padding: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--color-skin-border);
}

.theme-btn {
  padding: 0.5rem;
  border-radius: 9999px;
  color: var(--color-skin-text-muted);
  transition: background-color 0.2s, color 0.2s;
  display: flex;
}

.theme-btn:hover { color: var(--color-skin-text); }

.theme-btn--active {
  padding: 0.5rem;
  border-radius: 9999px;
  background-color: var(--color-skin-surface);
  color: var(--color-skin-accent);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  display: flex;
}

/* ============================================
   ICON CIRCLE (used in admin login)
   ============================================ */
.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: 9999px;
  background-color: color-mix(in srgb, var(--color-skin-accent) 10%, transparent);
  color: var(--color-skin-accent);
}

/* ============================================
   UTILITY HELPERS
   ============================================ */
.text-center { text-align: center; }
.text-muted   { color: var(--color-skin-text-muted); }
.text-accent  { color: var(--color-skin-accent); }
.text-sm      { font-size: 0.875rem; }
.text-xl      { font-size: 1.25rem; }
.font-bold    { font-weight: 700; }
.italic       { font-style: italic; }
.mb-4         { margin-bottom: 1rem; }
.mb-6         { margin-bottom: 1.5rem; }
.mb-8         { margin-bottom: 2rem; }
.mb-12        { margin-bottom: 3rem; }
.mt-2         { margin-top: 0.5rem; }
.mt-4         { margin-top: 1rem; }
.mx-auto      { margin-inline: auto; }

.max-w-prose  { max-width: 65ch; }
.flex-row     { display: flex; flex-direction: row; }
.gap-2        { gap: 0.5rem; }

.gradient-text {
  background: linear-gradient(to right, var(--color-skin-accent), var(--color-skin-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.link-accent {
  color: var(--color-skin-accent);
  font-weight: 700;
}

.link-accent:hover { text-decoration: underline; }

.fade-in { animation: fadeIn 0.3s ease; }