/* ============================================================
   SQ INTERACTIVE — COMPONENTS
   Reusable UI: nav, buttons, cards, badges, footer
   ============================================================ */

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */

.sq-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--sq-nav-height);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sq-border-subtle);
  transition: background var(--sq-duration-base) var(--sq-ease),
              border-color var(--sq-duration-base) var(--sq-ease);
}

.sq-nav.scrolled {
  background: rgba(10, 10, 10, 0.97);
  border-bottom-color: var(--sq-border);
}

.sq-nav__inner {
  width: 100%;
  max-width: var(--sq-max-width);
  margin-inline: auto;
  padding-inline: var(--sq-space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sq-space-4);
}

@media (min-width: 640px) {
  .sq-nav__inner {
    padding-inline: var(--sq-space-6);
    gap: var(--sq-space-8);
  }
}

/* Logo slot — replaceable */
.sq-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sq-space-3);
  flex-shrink: 0;
  text-decoration: none;
}

.sq-nav__logo-mark {
  display: flex;
  align-items: center;
  height: 36px;
  width: auto;
}

.sq-nav__logo-mark img,
.sq-nav__logo-mark svg {
  height: 36px;
  width: auto;
  max-width: 120px;
  border-radius: 0;
  object-fit: contain;
}

/* Logo text - SQ white, Interactive gold */
.sq-nav__logo-text {
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-base);
  font-weight: 700;
  color: var(--sq-text-strong);
  letter-spacing: -0.01em;
}

/* Gold color for "Interactive" span */
.sq-nav__logo-text span {
  color: var(--sq-gold);
}

/* Desktop links */
.sq-nav__links {
  display: none;
  align-items: center;
  gap: var(--sq-space-8);
}

@media (min-width: 1024px) {
  .sq-nav__links {
    display: flex;
  }
}

.sq-nav__link {
  font-size: var(--sq-text-sm);
  font-weight: 500;
  color: var(--sq-text-secondary);
  text-decoration: none;
  transition: color var(--sq-duration-fast) var(--sq-ease);
  white-space: nowrap;
}

.sq-nav__link:hover {
  color: var(--sq-text-strong);
}

.sq-nav__link--active {
  color: var(--sq-text-strong);
}

/* Nav CTA */
.sq-nav__cta {
  display: none;
}

@media (min-width: 1024px) {
  .sq-nav__cta {
    display: flex;
  }
}

/* Mobile toggle */
.sq-nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--sq-radius-md);
  color: var(--sq-text);
  transition: background var(--sq-duration-fast);
}

.sq-nav__toggle:hover {
  background: var(--sq-glass);
}

@media (min-width: 1024px) {
  .sq-nav__toggle {
    display: none;
  }
}

.sq-nav__toggle-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.sq-nav__toggle-icon span {
  display: block;
  height: 1.5px;
  background: var(--sq-text);
  border-radius: 2px;
  transition: transform var(--sq-duration-base) var(--sq-ease),
              opacity var(--sq-duration-base) var(--sq-ease),
              width var(--sq-duration-base) var(--sq-ease);
}

.sq-nav__toggle[aria-expanded="true"] .sq-nav__toggle-icon span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.sq-nav__toggle[aria-expanded="true"] .sq-nav__toggle-icon span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.sq-nav__toggle[aria-expanded="true"] .sq-nav__toggle-icon span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile menu */
.sq-nav__mobile {
  position: fixed;
  top: var(--sq-nav-height);
  left: 0;
  right: 0;
  background: var(--sq-bg-deep);
  border-bottom: 1px solid var(--sq-border);
  padding: var(--sq-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--sq-space-2);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--sq-duration-base) var(--sq-ease),
              opacity var(--sq-duration-base) var(--sq-ease);
  z-index: 99;
}

.sq-nav__mobile.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.sq-nav__mobile-link {
  display: block;
  padding: var(--sq-space-3) var(--sq-space-2);
  font-size: var(--sq-text-base);
  font-weight: 500;
  color: var(--sq-text-secondary);
  border-radius: var(--sq-radius-md);
  transition: color var(--sq-duration-fast), background var(--sq-duration-fast);
}

.sq-nav__mobile-link:hover {
  color: var(--sq-text-strong);
  background: var(--sq-glass);
}

.sq-nav__mobile-cta {
  margin-top: var(--sq-space-4);
  padding-top: var(--sq-space-4);
  border-top: 1px solid var(--sq-border);
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */

.sq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sq-space-2);
  padding: var(--sq-space-3) var(--sq-space-6);
  border-radius: var(--sq-radius-full);
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-sm);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform var(--sq-duration-fast) var(--sq-ease),
              box-shadow var(--sq-duration-fast) var(--sq-ease),
              background var(--sq-duration-fast) var(--sq-ease),
              color var(--sq-duration-fast) var(--sq-ease);
  white-space: nowrap;
  min-height: 44px;
}

.sq-btn:active {
  transform: scale(0.98);
}

/* Primary — gold */
.sq-btn--primary {
  background: var(--sq-gold);
  color: var(--sq-bg-deep);
}

.sq-btn--primary:hover {
  background: var(--sq-gold-light);
  box-shadow: var(--sq-shadow-gold);
  transform: translateY(-1px);
}

/* Secondary — outlined */
.sq-btn--secondary {
  background: transparent;
  color: var(--sq-text);
  border: 1px solid var(--sq-border);
}

.sq-btn--secondary:hover {
  border-color: var(--sq-gold-border);
  color: var(--sq-text-strong);
  background: var(--sq-gold-subtle);
}

/* Ghost — text only */
.sq-btn--ghost {
  background: transparent;
  color: var(--sq-text-secondary);
  padding-inline: var(--sq-space-2);
}

.sq-btn--ghost:hover {
  color: var(--sq-gold);
}

/* Size variants */
.sq-btn--sm {
  padding: var(--sq-space-2) var(--sq-space-4);
  font-size: var(--sq-text-xs);
  min-height: 36px;
}

.sq-btn--lg {
  padding: var(--sq-space-4) var(--sq-space-8);
  font-size: var(--sq-text-base);
  min-height: 52px;
}

/* ══════════════════════════════════════════
   BADGE / TAG
══════════════════════════════════════════ */

.sq-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sq-space-2);
  padding: var(--sq-space-1) var(--sq-space-3);
  border-radius: var(--sq-radius-full);
  font-size: var(--sq-text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  background: var(--sq-gold-subtle);
  border: 1px solid var(--sq-gold-border);
  color: var(--sq-gold);
}

.sq-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sq-gold);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════
   CARDS
══════════════════════════════════════════ */

.sq-card {
  background: var(--sq-surface-raised);
  border: 1px solid var(--sq-border);
  border-radius: var(--sq-radius-xl);
  padding: var(--sq-space-8);
  transition: border-color var(--sq-duration-base) var(--sq-ease),
              transform var(--sq-duration-base) var(--sq-ease);
}

.sq-card:hover {
  border-color: var(--sq-gold-border);
  transform: translateY(-2px);
}

.sq-card--surface {
  background: var(--sq-surface);
}

.sq-card--glass {
  background: var(--sq-glass);
  border-color: var(--sq-glass-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ══════════════════════════════════════════
   SCROLL PROGRESS
══════════════════════════════════════════ */

.sq-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--sq-gold);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s linear;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */

.sq-footer {
  background: var(--sq-bg-deep);
  border-top: 1px solid var(--sq-border);
  padding-block: var(--sq-space-16) var(--sq-space-10);
}

.sq-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sq-space-8);
}

@media (min-width: 640px) {
  .sq-footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--sq-space-10);
  }
}

@media (min-width: 1024px) {
  .sq-footer__grid {
    gap: var(--sq-space-12);
  }
}

.sq-footer__brand p {
  margin-top: var(--sq-space-4);
  font-size: var(--sq-text-sm);
  color: var(--sq-text-muted);
  max-width: 36ch;
}

.sq-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--sq-space-2);
  margin-top: var(--sq-space-5);
}

.sq-footer__contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sq-space-2);
  font-size: var(--sq-text-sm);
  color: var(--sq-text-muted);
  text-decoration: none;
  transition: color var(--sq-duration-fast);
}

.sq-footer__contact-link:hover {
  color: var(--sq-text);
}

.sq-footer__contact-link--wa:hover {
  color: #25D366;
}

/* ══════════════════════════════════════════
   WHATSAPP STICKY BUTTON
   Always visible, bottom-left. Green on hover.
══════════════════════════════════════════ */

.sq-wa-sticky {
  position: fixed;
  bottom: calc(var(--sq-space-4) + 60px);
  right: var(--sq-space-4);
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: var(--sq-space-2);
  padding: var(--sq-space-3) var(--sq-space-5);
  background: #25D366;
  color: #fff;
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-sm);
  font-weight: 700;
  border-radius: var(--sq-radius-full);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  transition:
    background var(--sq-duration-fast) var(--sq-ease),
    box-shadow var(--sq-duration-fast) var(--sq-ease),
    transform var(--sq-duration-fast) var(--sq-ease);
  white-space: nowrap;
  min-height: 44px;
}

@media (min-width: 640px) {
  .sq-wa-sticky {
    bottom: calc(var(--sq-space-6) + 68px);
    right: var(--sq-space-6);
  }
}

.sq-wa-sticky:hover {
  background: #1ebe5d;
  box-shadow: 0 6px 28px rgba(37,211,102,0.5);
  transform: translateY(-2px);
}

.sq-wa-sticky:focus-visible {
  outline: 2px solid #25D366;
  outline-offset: 3px;
}

@media (max-width: 479px) {
  .sq-wa-sticky span { display: none; }
  .sq-wa-sticky {
    padding: var(--sq-space-3);
    width: 48px;
    height: 48px;
    justify-content: center;
  }
}

/* ══════════════════════════════════════════
   FLOATING CONTACT BUTTON
══════════════════════════════════════════ */

.sq-float-cta {
  position: fixed;
  bottom: var(--sq-space-4);
  right: var(--sq-space-4);
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: var(--sq-space-2);
  padding: var(--sq-space-3) var(--sq-space-5);
  background: var(--sq-gold);
  color: var(--sq-bg-deep);
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-sm);
  font-weight: 700;
  border-radius: var(--sq-radius-full);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(212,175,55,0.35);
  transition:
    background var(--sq-duration-fast) var(--sq-ease),
    box-shadow var(--sq-duration-fast) var(--sq-ease),
    transform var(--sq-duration-fast) var(--sq-ease);
  white-space: nowrap;
  min-height: 44px;
}

@media (min-width: 640px) {
  .sq-float-cta {
    bottom: var(--sq-space-6);
    right: var(--sq-space-6);
  }
}

.sq-float-cta:hover {
  background: var(--sq-gold-light);
  box-shadow: 0 6px 28px rgba(212,175,55,0.5);
  transform: translateY(-2px);
}

.sq-float-cta:focus-visible {
  outline: 2px solid var(--sq-gold);
  outline-offset: 3px;
}

.sq-float-cta:active {
  transform: scale(0.97);
}

/* Hide label on very small screens, keep icon */
@media (max-width: 479px) {
  .sq-float-cta span {
    display: none;
  }
  .sq-float-cta {
    padding: var(--sq-space-3);
    width: 48px;
    height: 48px;
    justify-content: center;
  }
}

.sq-footer__heading {
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sq-text-secondary);
  margin-bottom: var(--sq-space-4);
}

.sq-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sq-space-3);
}

.sq-footer__link {
  font-size: var(--sq-text-sm);
  color: var(--sq-text-muted);
  transition: color var(--sq-duration-fast);
}

.sq-footer__link:hover {
  color: var(--sq-text);
}

.sq-footer__bottom {
  margin-top: var(--sq-space-12);
  padding-top: var(--sq-space-6);
  border-top: 1px solid var(--sq-border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--sq-space-3);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .sq-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.sq-footer__copy {
  font-size: var(--sq-text-xs);
  color: var(--sq-text-muted);
}

.sq-footer__social {
  display: flex;
  gap: var(--sq-space-3);
}

@media (min-width: 640px) {
  .sq-footer__social {
    gap: var(--sq-space-4);
  }
}

.sq-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--sq-radius-md);
  transition: color var(--sq-duration-fast), background var(--sq-duration-fast);
  min-height: 44px;
  min-width: 44px;
}

@media (min-width: 640px) {
  .sq-footer__social-link {
    width: 36px;
    height: 36px;
    min-height: auto;
    min-width: auto;
  }
}

.sq-footer__social-link--instagram {
  color: #E4405F;
}

.sq-footer__social-link--instagram:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
  color: #fff;
}

.sq-footer__social-link--linkedin {
  color: #0A66C2;
}

.sq-footer__social-link--linkedin:hover {
  background: #0A66C2;
  color: #fff;
}

.sq-footer__social-link--facebook {
  color: #1877F2;
}

.sq-footer__social-link--facebook:hover {
  background: #1877F2;
  color: #fff;
}

.sq-footer__social-link--youtube {
  color: #FF0000;
}

.sq-footer__social-link--youtube:hover {
  background: #FF0000;
  color: #fff;
}

/* ══════════════════════════════════════════
   WORLD LINK CARDS  (cross-world navigation)
   Used on: digital, ai, immersive, lab
   Visually distinct from content cards.
   Prompt + destination label + action bar.
══════════════════════════════════════════ */

.sq-world-link {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--sq-border);
  border-radius: var(--sq-radius-xl);
  background: var(--sq-bg);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  cursor: pointer;
  transition:
    border-color var(--sq-duration-base) var(--sq-ease),
    transform var(--sq-duration-base) var(--sq-ease);
}

.sq-world-link:hover {
  border-color: var(--sq-gold-border);
  transform: translateY(-2px);
}

.sq-world-link:focus-visible {
  outline: 2px solid var(--sq-gold);
  outline-offset: 3px;
}

.sq-world-link__content {
  padding: var(--sq-space-5) var(--sq-space-6);
  flex: 1;
}

.sq-world-link__prompt {
  font-size: var(--sq-text-sm);
  color: var(--sq-text-muted);
  line-height: var(--sq-leading-base);
  margin-bottom: var(--sq-space-3);
  max-width: none;
}

.sq-world-link__title {
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-base);
  font-weight: 700;
  color: var(--sq-text-strong);
  letter-spacing: -0.01em;
}

/* Action bar — the part that looks like a button */
.sq-world-link__action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sq-space-3);
  padding: var(--sq-space-3) var(--sq-space-6);
  background: var(--sq-surface);
  border-top: 1px solid var(--sq-border);
  transition:
    background var(--sq-duration-fast) var(--sq-ease),
    border-color var(--sq-duration-fast) var(--sq-ease);
}

.sq-world-link:hover .sq-world-link__action {
  background: var(--sq-gold-subtle);
  border-top-color: var(--sq-gold-border);
}

.sq-world-link__action-label {
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sq-text-muted);
  transition: color var(--sq-duration-fast);
}

.sq-world-link:hover .sq-world-link__action-label {
  color: var(--sq-gold);
}

.sq-world-link__arrow {
  display: flex;
  align-items: center;
  color: var(--sq-text-muted);
  flex-shrink: 0;
  transition: color var(--sq-duration-fast), transform var(--sq-duration-fast);
}

.sq-world-link:hover .sq-world-link__arrow {
  color: var(--sq-gold);
  transform: translateX(4px);
}

/* ══════════════════════════════════════════
   WORLD NAV BUTTONS  (compact pill strip)
   Used on: home strip, supplementary nav
   These are navigation controls, NOT content cards.
══════════════════════════════════════════ */

.sq-world-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sq-space-3);
  align-items: center;
}

/* Individual nav button */
.sq-world-nav__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sq-space-3);
  padding: var(--sq-space-3) var(--sq-space-5);
  min-height: 44px;
  background: transparent;
  border: 1px solid var(--sq-border);
  border-radius: var(--sq-radius-full);
  text-decoration: none;
  color: var(--sq-text-secondary);
  font-family: var(--sq-font-sans);
  font-size: var(--sq-text-sm);
  font-weight: 600;
  white-space: nowrap;
  transition:
    border-color var(--sq-duration-fast) var(--sq-ease),
    color var(--sq-duration-fast) var(--sq-ease),
    background var(--sq-duration-fast) var(--sq-ease),
    transform var(--sq-duration-fast) var(--sq-ease);
}

.sq-world-nav__btn:hover {
  border-color: var(--sq-gold-border);
  color: var(--sq-text-strong);
  background: var(--sq-gold-subtle);
  transform: translateY(-1px);
}

.sq-world-nav__btn:focus-visible {
  outline: 2px solid var(--sq-gold);
  outline-offset: 3px;
}

.sq-world-nav__btn:active {
  transform: scale(0.98);
}

/* World label inside the button */
.sq-world-nav__label {
  color: inherit;
}

/* Arrow icon */
.sq-world-nav__arrow {
  display: flex;
  align-items: center;
  color: var(--sq-text-muted);
  flex-shrink: 0;
  transition: color var(--sq-duration-fast), transform var(--sq-duration-fast);
}

.sq-world-nav__btn:hover .sq-world-nav__arrow {
  color: var(--sq-gold);
  transform: translateX(3px);
}

/* "You are here" state — current world, not a link */
.sq-world-nav__btn--current {
  border-color: var(--sq-gold-border);
  background: var(--sq-gold-subtle);
  color: var(--sq-gold);
  cursor: default;
  pointer-events: none;
}

.sq-world-nav__btn--current .sq-world-nav__arrow {
  display: none;
}

/* ══════════════════════════════════════════
   SECTION HEADER (reusable)
══════════════════════════════════════════ */

.sq-section-header {
  margin-bottom: var(--sq-space-12);
}

.sq-section-header--center {
  text-align: center;
}

.sq-section-header--center p {
  margin-inline: auto;
}

.sq-section-header h2 {
  margin-top: var(--sq-space-3);
}

.sq-section-header p {
  margin-top: var(--sq-space-4);
  font-size: var(--sq-text-lg);
  color: var(--sq-text-secondary);
}