/* ==========================================================================
   Reusable components: buttons, header/nav, footer, fab, cards, modal, pills
   ========================================================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--fs-sm);
  border: 1px solid transparent;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
  text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { flex-shrink: 0; }

.btn--primary { background: var(--gradient-ribbon); color: #fff; box-shadow: var(--shadow-md); }
.btn--primary:hover { box-shadow: var(--shadow-lg); color: #fff; }

.btn--secondary { background: var(--color-primary-100); color: var(--color-primary); }
.btn--secondary:hover { background: var(--color-tint-200); color: var(--color-primary); }

.btn--outline { background: transparent; border-color: var(--color-border); color: var(--color-ink); }
.btn--outline:hover { border-color: var(--color-secondary); color: var(--color-secondary); }

.btn--ghost { background: rgba(255,255,255,0.65); border-color: var(--color-border); color: var(--color-ink); backdrop-filter: blur(8px); }
.btn--ghost:hover { color: var(--color-primary); }

.btn--lg { padding: 1.05rem 1.9rem; font-size: var(--fs-md); }
.btn--sm { padding: 0.55rem 1.1rem; font-size: var(--fs-xs); }
.btn--block { width: 100%; justify-content: center; }

/* --- Icon button (header actions) --- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
  transition: background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.icon-btn:hover { background: var(--color-primary-100); transform: translateY(-2px); }
.icon-btn--whatsapp { color: var(--color-whatsapp); }

/* --- Site header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out), background var(--duration-base) var(--ease-out);
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border);
  background: rgba(255,255,255,0.92);
}
:root[data-theme="dark"] .site-header,
:root:not([data-theme="light"]) .site-header {
  background: rgba(10,25,48,0.72);
}
:root[data-theme="dark"] .site-header.is-scrolled,
:root:not([data-theme="light"]) .site-header.is-scrolled {
  background: rgba(10,25,48,0.92);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  height: var(--header-height);
}

.site-header__brand { display: inline-flex; align-items: center; }
.site-header__logo { height: 72px; width: auto; }

@media (max-width: 640px) {
  .site-header__logo { height: 56px; }
}

/* --- Light/dark logo swap (theme always explicit via inline head script) --- */
.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }

.site-nav__list { display: flex; align-items: center; gap: var(--space-md); list-style: none; margin: 0; padding: 0; }
.site-nav__list a {
  color: var(--color-ink);
  font-weight: 600;
  font-size: var(--fs-sm);
  padding: 0.4rem 0.1rem;
  position: relative;
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -4px;
  height: 2px;
  background: var(--color-secondary);
  transition: right var(--duration-base) var(--ease-out);
  border-radius: 2px;
}
.site-nav__list a:hover::after,
.site-nav__list a.is-active::after { right: 0; }
.site-nav__list a.is-active { color: var(--color-primary); }

.site-header__actions { display: flex; align-items: center; gap: var(--space-2xs); }
.site-nav__toggle { display: none; }

.site-nav-mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--container-pad) var(--space-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.site-nav-mobile.is-open { display: flex; }
.site-nav-mobile ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-xs); }
.site-nav-mobile a { color: var(--color-ink); font-weight: 600; font-size: var(--fs-md); }
.site-nav-mobile a.is-active { color: var(--color-primary); }

@media (max-width: 860px) {
  .site-nav { display: none; }
  .site-nav__toggle { display: inline-flex; }
}

@media (max-width: 640px) {
  .icon-btn--tel, .site-header__actions .icon-btn--whatsapp { display: none; }
}

.site-nav-mobile__actions { display: flex; flex-direction: column; gap: var(--space-xs); margin-top: var(--space-xs); }
.theme-toggle-btn--mobile {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  gap: var(--space-xs);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-ink);
  padding: 0.7rem 1rem;
}

/* --- Trust ribbon --- */
.trust-ribbon { background: var(--color-primary); color: #fff; font-size: var(--fs-xs); font-weight: 600; }
.trust-ribbon__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-block: 0.5rem;
  text-align: center;
}
.trust-ribbon__inner span { display: inline-flex; align-items: center; gap: 0.3rem; }
.trust-ribbon__sep { opacity: 0.5; }

/* --- WhatsApp FAB --- */
.whatsapp-fab {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: var(--z-fab);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px rgba(37,211,102,0.4);
  animation: fabPulse 2.6s ease-out infinite;
}
.whatsapp-fab:hover { background: var(--color-whatsapp-600); }

/* --- Badge chip --- */
.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary-100);
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--fs-xs);
}
.badge-chip--footer { margin-top: var(--space-sm); }

.service-card, .value-card, .contact-card, .enquiry-card, .pillar-card {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.service-card:hover, .value-card:hover, .contact-card:hover, .enquiry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}


.value-card__icon, .service-card__icon, .contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-ribbon);
  color: #fff;
  margin-bottom: var(--space-sm);
}
.contact-card__icon--whatsapp { background: var(--color-whatsapp); }

.contact-card { text-align: center; display: flex; flex-direction: column; align-items: center; }
.contact-card--static:hover { transform: none; box-shadow: var(--shadow-sm); }

.enquiry-card { display: block; }
.enquiry-card svg { color: var(--color-secondary); margin-bottom: var(--space-xs); }
.enquiry-card h3 { margin-bottom: var(--space-3xs); }
.enquiry-card p { margin: 0; font-size: var(--fs-sm); }

/* --- Category tile --- */
.category-tile {
  display: block;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.category-tile:hover { border-color: var(--color-secondary); box-shadow: var(--shadow-md); }
.category-tile h3 { font-size: var(--fs-md); margin-bottom: 0.2rem; }
.category-tile p { font-size: var(--fs-xs); margin: 0; color: var(--color-muted); }
.category-tile__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--color-primary-100);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.category-tile__arrow {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  color: var(--color-muted);
  transition: transform var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}
.category-tile:hover .category-tile__arrow { color: var(--color-secondary); transform: translateX(3px); }

/* --- Product card --- */
.product-card {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--color-secondary); box-shadow: var(--shadow-md); }
.product-card__media {
  height: 132px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  color: var(--color-primary);
}
.product-card__media img { width: 100%; height: 100%; object-fit: contain; padding: var(--space-sm); }
.product-card__body { padding: var(--space-sm) var(--space-md) var(--space-md); flex: 1; display: flex; flex-direction: column; }
.product-card__line {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-link);
  margin-bottom: 0.3rem;
}
.product-card__name { font-size: var(--fs-md); margin-bottom: 0.35rem; }
.product-card__desc { font-size: var(--fs-sm); flex: 1; margin-bottom: var(--space-sm); }
.product-card__cta { align-self: flex-start; }

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(10,25,48,0.55);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out), visibility var(--duration-base) var(--ease-out);
}
.modal-overlay.is-open { opacity: 1; visibility: visible; }
.modal-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-lg);
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(16px) scale(0.98);
  transition: transform var(--duration-base) var(--ease-out);
}
.modal-overlay.is-open .modal-panel { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-modal__media {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 220px;
  border-radius: var(--radius-md);
  background: var(--color-tint-100);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}
.product-modal__media img { width: 100%; height: 100%; object-fit: contain; padding: var(--space-md); }
.product-modal__category { font-size: var(--fs-sm); }
.product-modal__vendor { font-size: var(--fs-sm); margin-top: -0.5rem; }
.product-modal__actions { display: flex; gap: var(--space-xs); flex-wrap: wrap; margin-top: var(--space-md); }

/* --- Pills (product filters) --- */
.pill-row { display: flex; gap: var(--space-2xs); flex-wrap: wrap; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted-700);
  font-size: var(--fs-xs);
  font-weight: 600;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}
.pill:hover { border-color: var(--color-secondary); color: var(--color-secondary); }
.pill.is-active { background: var(--gradient-ribbon); border-color: transparent; color: #fff; }

.search-field {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 0.65rem 1.1rem;
  background: var(--color-surface);
  margin-bottom: var(--space-sm);
}
.search-field svg { color: var(--color-muted); flex-shrink: 0; }
.search-field input {
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--fs-sm);
  color: var(--color-ink);
  width: 100%;
  font-family: var(--font-body);
}

/* --- Site footer --- */
.site-footer { background: var(--color-surface-alt); border-top: 1px solid var(--color-border); padding-top: var(--space-xl); }
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
}
.site-footer__brand img { height: 76px; width: auto; margin-bottom: var(--space-sm); }
.site-footer__brand p { font-size: var(--fs-sm); max-width: 320px; }
.site-footer h3 { font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-sm); }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.site-footer__col a { color: var(--color-muted); font-size: var(--fs-sm); }
.site-footer__col a:hover { color: var(--color-secondary); }
.site-footer address { font-style: normal; color: var(--color-muted); font-size: var(--fs-sm); margin-bottom: var(--space-sm); line-height: var(--lh-normal); }
.site-footer__contact-link { display: flex; align-items: center; gap: 0.4rem; color: var(--color-muted); font-size: var(--fs-sm); margin-bottom: 0.4rem; }
.site-footer__contact-link:hover { color: var(--color-secondary); }
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding-block: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-muted);
}
.site-footer__bottom a { color: var(--color-link); }

@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__bottom { flex-direction: column; text-align: center; }
}