/* ==========================================================================
   components.css — Buttons, Cards, Forms, Badges, Tags, Alerts, Accordion
   ========================================================================== */

/* ---- Buttons (Design-System-v1.md §10) --------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding-inline: var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-body-md);
  font-weight: 600;
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--sm { height: 36px; padding-inline: var(--space-4); font-size: var(--text-body-sm); }
.btn--lg { height: 52px; padding-inline: var(--space-6); font-size: var(--text-body-lg); }

.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-secondary); }

.btn--secondary { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.btn--secondary:hover { background: var(--color-primary); color: var(--color-text-inverse); }

.btn--ghost { background: transparent; color: var(--color-primary); }
.btn--ghost:hover { background: var(--color-border); }

.btn--accent { background: var(--color-accent); color: var(--color-primary); }
.btn--accent:hover { background: #26b0a3; }

/* ---- Cards (Design-System-v1.md §13) ------------------------------------ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
a.card, .card--interactive {
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
a.card:hover, .card--interactive:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__icon { width: 40px; height: 40px; color: var(--color-accent-text); margin-bottom: var(--space-4); }
.card__title { font-size: var(--text-heading-sm); margin-bottom: var(--space-2); }
.card__desc { color: var(--color-text-muted); font-size: var(--text-body-sm); }
.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-4);
  font-size: var(--text-body-sm);
  font-weight: 600;
  color: var(--color-accent-text);
}

.card--stat { text-align: center; }
.card--stat .stat__number { font-family: var(--font-mono); font-size: var(--text-heading-lg); color: var(--color-primary); display: block; }
.card--stat .stat__label { font-size: var(--text-body-sm); color: var(--color-text-muted); margin-top: var(--space-1); }

/* ---- Badges & Tags (Design-System-v1.md §14–15) -------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(46,196,182,0.1);
  color: var(--color-accent-text);
}
.badge--muted { background: var(--color-border); color: var(--color-text-muted); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-body-sm);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* ---- Alerts (Design-System-v1.md §16) ------------------------------------ */
.alert {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border-left: 3px solid;
  font-size: var(--text-body-sm);
}
.alert--info { background: rgba(27,73,101,0.06); border-color: var(--color-info); }
.alert--success { background: rgba(26,127,90,0.08); border-color: var(--color-success); }
.alert--warning { background: rgba(183,121,31,0.08); border-color: var(--color-warning); }
.alert--danger { background: rgba(180,35,24,0.08); border-color: var(--color-danger); }

/* ---- Forms (Design-System-v1.md §11) -------------------------------------- */
.form-field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.form-field label { font-size: var(--text-body-sm); font-weight: 600; }
.form-field .hint { font-size: var(--text-body-sm); color: var(--color-text-muted); }

.form-input, .form-textarea {
  height: 44px;
  padding-inline: var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-body-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-textarea { height: auto; min-height: 140px; padding-block: var(--space-3); resize: vertical; }
.form-input:focus, .form-textarea:focus { border-color: var(--color-accent); box-shadow: var(--shadow-focus); outline: none; }

.form-field.has-error .form-input,
.form-field.has-error .form-textarea { border-color: var(--color-danger); }
.form-error {
  display: none;
  color: var(--color-danger);
  font-size: var(--text-body-sm);
}
.form-field.has-error .form-error { display: block; }

/* Honeypot: hidden from sighted users AND kept out of the tab order,
   without display:none (some assistive tech still announces those
   inconsistently — this uses an off-screen technique instead). */
.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- Accordion (native <details>, Design-System-v1.md §19) --------------- */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}
.accordion-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-4);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary .chevron { transition: transform var(--transition-base); flex-shrink: 0; }
.accordion-item[open] summary .chevron { transform: rotate(180deg); }
.accordion-item__content { padding-bottom: var(--space-4); color: var(--color-text-muted); }

/* ---- Pagination (Design-System-v1.md §21, reserved for future Blog) ------ */
.pagination { display: flex; gap: var(--space-2); align-items: center; }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; border-radius: var(--radius-md);
  font-size: var(--text-body-sm);
}
.pagination [aria-current="page"] { background: var(--color-primary); color: var(--color-text-inverse); }

/* ---- CTA band -------------------------------------------------------------- */
.cta-band {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: var(--space-7) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: flex-start;
}
@media (min-width: 768px) {
  .cta-band { flex-direction: row; align-items: center; justify-content: space-between; }
}
.cta-band h2 { color: var(--color-text-inverse); }