/* ==========================================================================
   OMC Cloud — Component Library
   Buttons, badges, cards, form elements, nav/footer primitives.
   Built entirely on tokens from variables.css.
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* Buttons                                                                 */
/* ---------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-base);
  min-height: 44px;
  padding-block: var(--space-2);
  padding-inline: var(--space-6);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  /* Intentionally no white-space:nowrap — a long label at btn--lg can
     overflow a narrow phone viewport if it's forced onto one line;
     wrapping to two lines is the safer default. */
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { box-shadow: var(--shadow-focus); }

.btn--sm { min-height: 36px; padding-inline: var(--space-4); font-size: var(--text-sm); }
.btn--lg { min-height: 52px; padding-inline: var(--space-8); font-size: var(--text-lg); }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--color-accent-600);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-accent-700); box-shadow: var(--shadow-md); }

.btn--secondary {
  background: var(--color-white);
  border-color: var(--color-navy-700);
  color: var(--color-navy-900);
}
.btn--secondary:hover { background: var(--color-gray-50); }

.btn--ghost {
  background: transparent;
  color: var(--color-accent-600);
  height: auto;
  padding-inline: 0;
}
.btn--ghost:hover { text-decoration: underline; background: none; }

.btn--on-dark {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--color-white);
}
.btn--on-dark:hover { background: rgba(255, 255, 255, 0.08); }

.btn:disabled {
  background: var(--color-gray-200);
  border-color: var(--color-gray-200);
  color: var(--color-gray-500);
  cursor: not-allowed;
  box-shadow: none;
}

/* ---------------------------------------------------------------------- */
/* Badges                                                                  */
/* ---------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}
/* text uses the darker -700 shade, not -600: -600 on these light tints falls short of 4.5:1 at badge text size */
.badge--available { background: var(--color-success-100); color: var(--color-success-700); }
.badge--limited    { background: var(--color-warning-100); color: var(--color-warning-700); }
.badge--popular    { background: var(--color-accent-100); color: var(--color-accent-700); }
.badge--sample     { background: var(--color-gray-100); color: var(--color-gray-700); border: 1px dashed var(--color-gray-300); }

/* ---------------------------------------------------------------------- */
/* Cards                                                                   */
/* ---------------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
}

.card--interactive {
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}
.card--interactive:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-400);
  transform: translateY(-2px);
}

/* Product card */
.product-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.product-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}
.product-card__name { font-size: var(--text-xl); }
.product-card__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3) var(--space-4);
  padding-block: var(--space-4);
  border-block: 1px solid var(--color-border);
}
.product-card__spec {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.product-card__spec strong {
  font-family: var(--font-mono);
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}
.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.product-card__price {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy-900);
}
.product-card__price span {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-muted);
}
.product-card__actions { display: flex; gap: var(--space-2); }

/* ---------------------------------------------------------------------- */
/* Forms                                                                   */
/* ---------------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.field label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-navy-900);
}
.field .hint { font-size: var(--text-xs); color: var(--color-text-muted); }
.field .error-message { font-size: var(--text-xs); color: var(--color-danger-600); }

.input, .select, .textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.textarea { min-height: 140px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-accent-600);
  box-shadow: var(--shadow-focus);
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] {
  border-color: var(--color-danger-600);
}

/* ---------------------------------------------------------------------- */
/* Header / Navigation primitives                                         */
/* ---------------------------------------------------------------------- */
.utility-bar {
  background: var(--color-navy-950);
  color: var(--color-text-on-dark-muted);
  font-size: var(--text-xs);
}
.utility-bar a { color: var(--color-text-on-dark-muted); }
.utility-bar a:hover { color: var(--color-white); }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }

.nav-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.nav-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(360px, 88vw);
  background: var(--color-white);
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}
.nav-drawer.is-open { transform: translateX(0); }

/* ---------------------------------------------------------------------- */
/* Footer primitives                                                      */
/* ---------------------------------------------------------------------- */
.site-footer {
  background: var(--color-navy-950);
  color: var(--color-text-on-dark-muted);
}
/* base.css gives every <p> the dark body-text color; footer text sits on navy, so inherit the light footer color instead */
.site-footer p { color: inherit; }
.site-footer a { color: var(--color-text-on-dark-muted); }
.site-footer a:hover { color: var(--color-white); }
.site-footer h4 {
  color: var(--color-white);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}
.site-footer .footer-bottom {
  background: var(--color-navy-900);
  border-top: 1px solid var(--color-navy-800);
}

/* ---------------------------------------------------------------------- */
/* Accordion (FAQ)                                                        */
/* ---------------------------------------------------------------------- */
.accordion-item { border-bottom: 1px solid var(--color-border); }
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-5);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-lg);
  color: var(--color-navy-900);
}
.accordion-trigger .icon { transition: transform var(--transition-base); }
.accordion-trigger[aria-expanded="true"] .icon { transform: rotate(180deg); }
.accordion-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
}
.accordion-panel__inner { padding-bottom: var(--space-5); color: var(--color-text-muted); }