/* ============================================================
   components.css — Buttons, Cards, Labels, Stat Bar, Dividers
   Palette: Monochrome. No hue-based accent.
   ============================================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 100px;
  padding: 0.75rem 2rem;
  font-family: var(--font-sans);
  font-size: var(--type-button-size);
  font-weight: var(--type-button-weight);
  line-height: var(--type-button-leading);
  letter-spacing: var(--type-button-tracking);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background var(--transition-base), color var(--transition-base),
              border-color var(--transition-base), opacity var(--transition-base);
  white-space: nowrap;
}

/* Primary — white fill on dark backgrounds */
.btn--primary {
  background: var(--color-white);
  color: var(--color-off-black);
  border: 1px solid var(--color-white);
}

.btn--primary:hover {
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-off-black);
}

/* Ghost — outline only, white text, for dark backgrounds */
.btn--ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--color-white);
}

/* Secondary — light fill, for light backgrounds */
.btn--secondary {
  background: var(--color-light-gray);
  color: var(--color-text-primary);
  border: 1px solid transparent;
}

.btn--secondary:hover {
  background: #E2E3E5;
  color: var(--color-text-primary);
}

/* Ghost white — kept for backward compat */
.btn--ghost-white {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn--ghost-white:hover {
  background: rgba(255, 255, 255, 0.18);
  color: var(--color-text-white);
}

/* --- Section labels --- */
.section-label {
  display: block;
  font-size: var(--type-meta-size);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.section-label--light {
  color: rgba(255, 255, 255, 0.45);
}

/* --- Section heading --- */
.section-heading {
  font-size: var(--type-title-size);
  font-weight: var(--type-title-weight);
  line-height: var(--type-title-leading);
  letter-spacing: var(--type-title-tracking);
  color: var(--color-text-primary);
  max-width: 22ch;
}

.section-heading--light {
  color: var(--color-text-white);
}

/* --- Section body text --- */
.section-body {
  font-size: var(--type-lead-size);
  font-weight: var(--type-lead-weight);
  line-height: var(--type-lead-leading);
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* --- Inline arrow link --- */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--type-button-size);
  font-weight: var(--type-button-weight);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.arrow-link:hover {
  gap: 0.625rem;
  color: var(--color-off-black);
}

/* Arrow link on dark backgrounds */
.arrow-link--light {
  color: rgba(255, 255, 255, 0.7);
}

.arrow-link--light:hover {
  color: var(--color-white);
}

/* --- Content cards --- */
.card {
  background: var(--color-white);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.card__eyebrow {
  font-size: var(--type-meta-size);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.card__body {
  font-size: var(--type-body-size);
  line-height: var(--type-body-leading);
  color: var(--color-text-muted);
  flex: 1;
}

/* --- Stat bar items --- */
.stat-item {
  background: var(--color-white);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-item--dark {
  background: var(--color-off-black);
}

.stat-item__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-text-primary);
}

.stat-item--dark .stat-item__number {
  color: var(--color-white);
}

.stat-item__label {
  font-size: var(--type-meta-size);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.stat-item--dark .stat-item__label {
  color: rgba(255, 255, 255, 0.5);
}

/* --- Timeline step cards --- */
.timeline-step {
  background: var(--color-white);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.timeline-step__day {
  font-size: var(--type-meta-size);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.timeline-step__title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.timeline-step__body {
  font-size: var(--type-body-size);
  line-height: var(--type-body-leading);
  color: var(--color-text-muted);
}

/* --- Vertical list with arrows --- */
.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.check-list__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--type-body-size);
  line-height: var(--type-body-leading);
  color: var(--color-text-primary);
}

.check-list__item::before {
  content: '→';
  color: var(--color-text-muted);
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 0.1em;
}

/* --- Horizontal rule / divider --- */
.divider {
  border: none;
  border-top: 1px solid var(--color-light-gray);
  margin: 0;
}

/* --- Pill / tag --- */
.tag {
  display: inline-block;
  font-size: var(--type-meta-size);
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
}

.tag--mono {
  background: rgba(0, 0, 0, 0.06);
  color: var(--color-text-primary);
}