/* ============================================================
   Image Gallery Pages — shared stylesheet
   Themed to match the ASEF homepage (Dosis + dark grey palette).
   ============================================================ */

@font-face {
  font-family: "Dosis";
  src: url("../fonts/Dosis-VariableFont_wght.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --white: #ffffff;
  --dark-grey: #2b2b2b;
  --mid-grey: #6b6b6b;
  --light-grey: #f5f5f5;
  --accent: #1a1a1a;
  --font-body: "Dosis", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --header-height: 64px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

body {
  font-family: var(--font-body);
  color: var(--dark-grey);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}
.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}
.preloader-logo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  margin-bottom: 0.35rem;
  animation: logoPulse 1.8s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { opacity: 0.7; transform: scale(0.98); }
  50% { opacity: 1; transform: scale(1.02); }
}
.preloader-line {
  width: 130px;
  height: 2px;
  background: rgba(0, 0, 0, 0.12);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}
.preloader-line::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--dark-grey);
  animation: loadSlide 1.2s ease-in-out infinite;
}
@keyframes loadSlide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}
.preloader-text {
  font-size: 0.8rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--dark-grey);
  font-weight: 500;
}

/* ============================================================
   Header — matches homepage
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--white);
  color: var(--dark-grey);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform 0.4s ease, background 0.4s ease,
              box-shadow 0.4s ease, border-color 0.4s ease;
  will-change: transform;
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

.site-header.scrolled {
  background: var(--white);
  border-bottom-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.site-header.menu-open {
  background: var(--white);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

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

.logo {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.25em;
  color: var(--dark-grey);
  transition: color 0.4s ease, opacity 0.25s ease;
}
.logo:hover { opacity: 0.7; }

.main-nav { display: block; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--dark-grey);
  padding: 0.25rem 0;
  transition: color 0.4s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link:hover { opacity: 0.8; }

/* Dropdown */
.nav-item-dropdown { position: relative; }
.nav-link--dropdown { display: inline-flex; align-items: center; gap: 0.35em; }
.caret {
  font-size: 0.7em;
  line-height: 1;
  transition: transform 0.25s ease;
}
.nav-item-dropdown.open .caret,
.nav-item-dropdown:hover .caret { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 240px;
  background: var(--white);
  border-radius: 14px;
  padding: 0.6rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(0, 0, 0, 0.05);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 1100;
}
.dropdown-menu::before {
  content: "";
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}
.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 0.6rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark-grey);
  border-radius: 8px;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}
.dropdown-menu a:hover { background: var(--light-grey); color: #000; }
.dropdown-menu a.active-dd { font-weight: 700; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--dark-grey);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.4s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  overflow: hidden;
  max-height: 0;
  background: var(--white);
  transition: max-height 0.4s ease;
}
.mobile-menu.open {
  max-height: 700px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav-list {
  display: flex;
  flex-direction: column;
  padding: 0.5rem 2rem 1.5rem;
}
.mobile-nav-link {
  display: block;
  padding: 0.9rem 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--dark-grey);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.mobile-dropdown-toggle {
  width: 100%;
  background: none;
  border: none;
  font-family: var(--font-body);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-dropdown.open .mobile-dropdown-toggle .caret { transform: rotate(180deg); }
.mobile-submenu {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
  padding-left: 1rem;
}
.mobile-dropdown.open .mobile-submenu { max-height: 640px; }
.mobile-submenu-link {
  display: block;
  padding: 0.7rem 0;
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--mid-grey);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.mobile-submenu-link:hover { color: var(--dark-grey); }

/* ============================================================
   Gallery page
   ============================================================ */
.gallery-page {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 4rem;
}
.gallery-container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
}

.gallery-head {
  text-align: center;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.gallery-head.visible {
  opacity: 1;
  transform: translateY(0);
}
.gallery-breadcrumb {
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 0.9rem;
}
.section-title {
  font-family: var(--font-body);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 200;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--dark-grey);
  margin-bottom: 0.75rem;
}
.gradient-text {
  color: var(--dark-grey);
}
.gallery-count {
  font-size: 0.9rem;
  color: var(--mid-grey);
  letter-spacing: 0.03em;
}

/* Grid — 3 columns, square items */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.gallery-item {
  position: relative;
  border-radius: 0;
  overflow: hidden;
  cursor: pointer;
  background: var(--light-grey);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  aspect-ratio: 1 / 1;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.16);
}
.gallery-item:hover img { transform: scale(1.06); }

/* Hover overlay — dark black, centered title + details */
.gallery-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #000;
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 1;
}
.gallery-item:hover::after { opacity: 1; }

/* Centered caption / details on hover */
.gallery-item .gallery-caption {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  color: var(--white);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}
.gallery-item:hover .gallery-caption {
  opacity: 1;
  transform: translateY(0);
}
.gallery-caption-title {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.gallery-caption-detail {
  font-size: 0.82rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}
.gallery-caption-line {
  width: 36px;
  height: 2px;
  background: rgba(255, 255, 255, 0.7);
  margin: 0.6rem 0;
}

.gallery-zoom { display: none; }

/* Footer */
.gallery-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 2rem 2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.88rem;
  color: var(--mid-grey);
}
.gallery-footer a { color: var(--dark-grey); font-weight: 600; }
.gallery-footer a:hover { text-decoration: underline; }

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 4000;
  background: rgba(0, 0, 0, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lb-stage {
  max-width: 90vw;
  max-height: 82vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lb-stage img {
  max-width: 90vw;
  max-height: 82vh;
  width: auto;
  height: auto;
  border: 18px solid #ffffff;
  border-radius: 0;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}
.lb-close {
  position: absolute;
  top: 1.4rem;
  right: 1.4rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background 0.25s ease;
}
.lb-close:hover { background: rgba(255, 255, 255, 0.28); }
.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}
.lb-nav:hover { background: rgba(255, 255, 255, 0.28); }
.lb-nav svg { width: 26px; height: 26px; }
.lb-prev { left: 1.4rem; }
.lb-next { right: 1.4rem; }
.lb-caption {
  position: absolute;
  bottom: 2.6rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-align: center;
  padding: 0 1rem;
}
.lb-counter {
  position: absolute;
  bottom: 1.3rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

/* ============================================================
   Floating action buttons
   ============================================================ */
.fab-stack {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.fab {
  width: 52px;
  height: 52px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: transform 0.25s ease, background 0.25s ease;
}
.fab svg {
  display: block;
  margin: 0;
}
.fab:hover { transform: translateY(-3px) scale(1.05); }
.fab-call { background: var(--mid-grey); }
.fab-whatsapp { background: var(--mid-grey); }
.fab-call:hover { background: var(--dark-grey); }
.fab-whatsapp:hover { background: var(--dark-grey); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: block; }
  .mobile-menu.open {
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Center the menu horizontally on mobile */
  .mobile-nav-list {
    align-items: center;
    text-align: center;
  }
  .mobile-nav-link {
    text-align: center;
  }
  .mobile-submenu {
    padding-left: 0;
    text-align: center;
  }
  .mobile-submenu-link {
    text-align: center;
  }
  .mobile-dropdown-toggle {
    justify-content: center;
    gap: 0.4em;
  }

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

@media (max-width: 600px) {
  :root { --header-height: 54px; }
  .container, .gallery-container { padding: 0 1.1rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-page { padding-top: calc(var(--header-height) + 2rem); }
  .lb-nav { width: 42px; height: 42px; }
  .lb-prev { left: 0.5rem; }
  .lb-next { right: 0.5rem; }
  .lb-close { top: 0.7rem; right: 0.7rem; width: 40px; height: 40px; }
}