/* ============================================================
   LAYOUT.CSS — Navbar, Footer, Grids, Flexbox
   ============================================================ */


/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: var(--z-navbar);
  background-color: transparent;
  transition:
    background-color var(--transition-default),
    box-shadow var(--transition-default),
    backdrop-filter var(--transition-default);
}

/* Scrolled state — glassmorphism */
.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: calc(var(--z-navbar) + 1);
}

.navbar__logo img {
  height: 36px;
  width: auto;
}

.navbar__logo-text {
  font-family: var(--font-primary);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-inverse);
  letter-spacing: var(--tracking-tight);
  transition: color var(--transition-default);
}

.navbar.scrolled .navbar__logo-text {
  color: var(--color-primary);
}

/* Nav links */
.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-default);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-text-inverse);
  transition:
    width var(--transition-default),
    background-color var(--transition-default);
  border-radius: var(--radius-full);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--color-text-inverse);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

/* Scrolled: revert to dark text */
.navbar.scrolled .navbar__link {
  color: var(--color-text);
}

.navbar.scrolled .navbar__link:hover,
.navbar.scrolled .navbar__link.active {
  color: var(--color-accent);
}

.navbar.scrolled .navbar__link::after {
  background-color: var(--color-accent);
}

/* CTA button in navbar */
.navbar__cta {
  padding: 10px 24px;
  font-size: var(--text-sm);
  background-color: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.5);
  transition:
    background-color var(--transition-default),
    color var(--transition-default),
    border-color var(--transition-default),
    box-shadow var(--transition-default);
}

.navbar__cta:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.8);
}

.navbar.scrolled .navbar__cta {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

.navbar.scrolled .navbar__cta:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
  box-shadow: var(--shadow-accent);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  z-index: calc(var(--z-navbar) + 2);
  background: none;
  border: none;
  padding: 0;
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-default),
    opacity var(--transition-fast),
    background-color var(--transition-default);
  transform-origin: center;
}

.navbar.scrolled .navbar__hamburger span {
  background-color: var(--color-primary);
}

/* Hamburger open state */
.navbar__hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.navbar__mobile-overlay {
  display: none;
}

/* Mobile responsive */
@media (max-width: 1024px) {
  .navbar__links {
    display: none;
  }

  .navbar__cta {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  /* Mobile overlay */
  .navbar__mobile-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    inset: 0;
    background-color: var(--color-surface);
    z-index: var(--z-navbar);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--transition-default),
      visibility var(--transition-default);
  }

  .navbar__mobile-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  .navbar__mobile-overlay .navbar__mobile-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
  }

  .navbar__mobile-overlay .navbar__mobile-link {
    font-size: var(--text-2xl);
    font-weight: var(--weight-medium);
    color: var(--color-primary);
    letter-spacing: var(--tracking-tight);
    transition:
      color var(--transition-fast),
      transform var(--transition-default);
    transform: translateY(20px);
    opacity: 0;
  }

  .navbar__mobile-overlay.open .navbar__mobile-link {
    transform: translateY(0);
    opacity: 1;
  }

  /* Stagger animation for mobile links */
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(1) { transition-delay: 0.05s; }
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(2) { transition-delay: 0.1s; }
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(3) { transition-delay: 0.15s; }
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(4) { transition-delay: 0.2s; }
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(5) { transition-delay: 0.25s; }
  .navbar__mobile-overlay.open .navbar__mobile-link:nth-child(6) { transition-delay: 0.3s; }

  .navbar__mobile-overlay .navbar__mobile-link:hover,
  .navbar__mobile-overlay .navbar__mobile-link.active {
    color: var(--color-accent);
  }

  .navbar__mobile-overlay .navbar__mobile-cta {
    margin-top: var(--space-2xl);
    transform: translateY(20px);
    opacity: 0;
    transition:
      transform var(--transition-default),
      opacity var(--transition-default);
    transition-delay: 0.35s;
  }

  .navbar__mobile-overlay.open .navbar__mobile-cta {
    transform: translateY(0);
    opacity: 1;
  }
}


/* ============================================================
   FOOTER — Premium Redesign
   ============================================================ */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding-top: 0;
  padding-bottom: 0;
}

/* --- CTA Strip (top of footer) --- */
.footer__cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--space-2xl);
}

.footer__cta-content {
  max-width: 520px;
}

.footer__cta-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-2xs);
  line-height: var(--leading-snug);
}

.footer__cta-text {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  line-height: var(--leading-normal);
  margin-bottom: 0;
}

.footer__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 12px 28px;
  background: transparent;
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  border: 2px solid rgba(255, 255, 255, 0.3);
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--transition-default),
    border-color var(--transition-default),
    color var(--transition-default),
    transform var(--transition-default),
    box-shadow var(--transition-default);
}

.footer__cta-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-default);
}

.footer__cta-btn:hover {
  background: rgba(255, 255, 255, 1);
  border-color: rgba(255, 255, 255, 1);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(255, 255, 255, 0.15);
}

.footer__cta-btn:hover svg {
  transform: translateX(3px);
}

/* --- Main Grid --- */
.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

/* --- Brand column --- */
.footer__brand {
  max-width: 300px;
}

.footer__brand img {
  height: 36px;
  width: auto;
  margin-bottom: var(--space-md);
  display: block;
}

.footer__slogan {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: var(--space-md);
}

.footer__description {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
}

/* Social icons row */
.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.footer__social-link svg {
  width: 16px;
  height: 16px;
}

.footer__social-link:hover {
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.35);
  background-color: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

/* --- Navigation columns --- */
.footer__heading {
  font-size: 11px;
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: var(--space-lg);
}

.footer__link {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-sm);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-inverse);
  transform: translateX(3px);
}

/* --- Contact items (clickable) --- */
.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-md);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contact-item:hover {
  color: var(--color-text-inverse);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.45;
  transition: opacity var(--transition-fast);
}

.footer__contact-item:hover svg {
  opacity: 0.8;
}

.footer__contact-item--wa {
  color: rgba(37, 211, 102, 0.7);
}

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

/* --- Bottom bar --- */
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-lg) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
}

.footer__copyright {
  margin: 0;
}

.footer__location {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  margin: 0;
}

.footer__location svg {
  opacity: 0.4;
}

/* --- Footer responsive --- */
@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__cta-strip {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__brand {
    max-width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}


/* ============================================================
   GRIDS
   ============================================================ */
.grid {
  display: grid;
  gap: var(--grid-gap-md);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Responsive grids */
@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid--4,
  .grid--3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .grid--2 {
    grid-template-columns: 1fr;
  }
}


/* ============================================================
   FLEXBOX UTILITIES
   ============================================================ */
.flex {
  display: flex;
}

.flex--center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex--between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex--start {
  display: flex;
  align-items: flex-start;
}

.flex--column {
  display: flex;
  flex-direction: column;
}

.flex--wrap {
  flex-wrap: wrap;
}

.flex--gap-sm {
  gap: var(--space-sm);
}

.flex--gap-md {
  gap: var(--space-md);
}

.flex--gap-lg {
  gap: var(--space-lg);
}

.flex--gap-xl {
  gap: var(--space-xl);
}


/* ============================================================
   SPACER UTILITY (between major sections)
   ============================================================ */
.spacer {
  height: var(--space-3xl);
}

.spacer--sm {
  height: var(--space-xl);
}

.spacer--lg {
  height: var(--space-4xl);
}