:root{--bg:#202020;--fg:#eee;--muted:#bbb;--accent:#7fc7ff;--card:#1b1b1b;--border:#2a2a2a}
body.dark{background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;margin:0}
a{color:inherit;text-decoration:none}
.site-header,.site-footer{max-width:133.33vh;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.site-header{padding:16px 24px 8px}
.site-footer{padding:16px 24px}
main{max-width:133.33vh;margin:0 auto;padding:12px 24px 24px}

/* general tweaks */
img{display:block;max-width:100%;height:auto}
::selection{background:rgba(127,199,255,.25)}

/* header + nav */
.site-header{
  position:sticky;
  top:0;
  background:linear-gradient(to bottom, rgba(32,32,32,.4), rgba(32,32,32,0));
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid rgba(255,255,255,.06);
  z-index:10}
.brand{font-weight:600;letter-spacing:.02em}
.site-nav a{padding:0 8px;opacity:.9}
.site-nav a:hover{opacity:1;color:var(--accent)}
.site-nav .sep{color:var(--muted);opacity:.6;margin:0 4px}

/* hamburger menu base styles */
.menu-toggle{display:none;background:none;color:var(--fg);border:1px solid var(--border);border-radius:8px;cursor:pointer;align-items:center;justify-content:center;transition:background .2s ease, border-color .2s ease;/* prevent crop of rotated bars */width:40px;height:40px;padding:0;position:relative;line-height:0;overflow:visible}
.menu-toggle:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15)}
.menu-toggle:focus{outline:2px solid var(--accent);outline-offset:2px}
.menu-toggle span{position:absolute;left:50%;width:22px;height:2px;background:var(--fg);border-radius:1px;transition:transform .3s ease, opacity .3s ease;transform:translateX(-50%)}
/* bar positions */
.menu-toggle span:nth-child(1){top:12px}
.menu-toggle span:nth-child(2){top:19px}
.menu-toggle span:nth-child(3){top:26px}
/* turn into X centered */
.menu-toggle[aria-expanded="true"] span:nth-child(1){top:19px;transform:translateX(-50%) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){top:19px;transform:translateX(-50%) rotate(-45deg)}

@media (max-width:900px){
  .menu-toggle{display:inline-flex}
  .site-nav{position:absolute;top:100%;right:16px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:8px 12px;display:flex;flex-direction:column;min-width:210px;box-shadow:0 12px 40px rgba(0,0,0,.6);opacity:0;pointer-events:none;transform:translateY(-6px) scale(.98);transition:opacity .18s ease, transform .18s ease}
  .site-nav.open{opacity:1;pointer-events:auto;transform:translateY(0) scale(1)}
  .site-nav a{padding:10px 4px;display:block}
  .site-nav .sep{display:none}
  body.dark.menu-open{overflow:hidden}
  
  /* page overlay behind dropdown */
  .menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.35);backdrop-filter:saturate(120%) blur(2px);opacity:0;transition:opacity .18s ease;z-index:9}
  .menu-overlay.show{opacity:1}
  
  /* ensure header stacks above overlay */
  .site-header{position:sticky;z-index:10}
}

@keyframes fadeSlide{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* intro */
.intro{margin:24px auto 0}
.intro hr{border:0;border-top:1px solid var(--border);margin:16px 0}

/* readable inline links in content */
main p a, main li a, main blockquote a{
  color:rgba(127,199,255,.85);
  text-decoration:underline;
  text-underline-offset:2px;
  text-decoration-thickness:.07em;
  text-decoration-color:rgba(127,199,255,.62);
}
main p a:hover, main li a:hover, main blockquote a:hover{
  color:#bfe0ff;
  text-decoration-color:rgba(127,199,255,.88);
}

/* cards on home */
.card-grid{list-style:none;padding:0;margin:16px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card-grid figure{background:var(--card);border:1px solid var(--border);border-radius:8px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.28);transition:transform .2s ease, box-shadow .2s ease}
.card-grid figure:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.4)}
.card-grid img{width:100%;height:auto;object-fit:contain;background:#0e0e0e}
.card-grid figcaption{padding:10px 12px;color:var(--muted)}

/* gallery grid */
.gallery-grid{list-style:none;padding:0;margin:16px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.gallery-grid li a{display:block}
.gallery-grid figure{background:var(--card);border:1px solid var(--border);border-radius:8px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.28);transition:transform .2s ease, box-shadow .2s ease}
.gallery-grid figure:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.4)}
.gallery-grid img{width:100%;height:auto;object-fit:contain}
.gallery-grid figcaption{padding:10px 12px;color:var(--muted);font-size:.95rem}

/* footer */
.site-footer{border-top:1px solid rgba(255,255,255,.06);opacity:.9}

/* hero carousel */
main .hero-aspect,
.hero .swiper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 75vh;
  background:#0e0e0e;
  overflow:hidden;
  border-radius:4px;
  box-shadow:0 0 24px rgba(255,255,255,.12)
}

.hero-slide img,
.hero .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;   /* full image, no cropping */
  background: #141414;   /* fills any letterbox */
}

.hero-track{position:relative;width:100%;height:100%}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.hero-slide.active{opacity:1}

h1 {
  font-family: "Karla", sans-serif;
  font-weight: 400;
  font-style: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: rgb(165, 165, 165);
  transition: opacity 1.5s ease 0.015s;
}

/* headings + text */
h1,h2,h3{margin:0 0 12px}
p{color:#d7d7d7}

/* focus styles */
main a:focus{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* lightbox styles */
.lightbox {
  position: fixed;
  inset: 0; /* replaces top/left/width/height */
  height: auto;
  min-height: 100vh;   /* fallback */
  min-height: 100svh;  /* iOS dynamic viewport */
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right))
           max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
  box-sizing: border-box;
  overscroll-behavior: contain;
  touch-action: none;
  transform: translateZ(0); /* Promote to its own layer for iOS */
  will-change: transform;
}

.lightbox-backdrop {
  position: fixed; /* ensure viewport-anchored */
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  -webkit-backdrop-filter: blur(8px); /* iOS prefix */
  backdrop-filter: blur(8px);
}

.lightbox-content {
  position: relative;
  max-width: 95vw;
  max-height: 95vh;   /* fallback */
  max-height: 95svh;  /* iOS dynamic viewport */
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1001;
}

.lightbox-close {
  position: fixed; /* anchor to viewport */
  top: calc(env(safe-area-inset-top) + 12px);
  right: calc(env(safe-area-inset-right) + 12px);
  background: none;
  border: none;
  color: white;
  font-size: 32px;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s ease;
  z-index: 1002;
}

.lightbox-close:hover {
  opacity: 1;
}

.lightbox-image {
  max-width: 100%;
  max-height: 80vh;   /* fallback */
  max-height: 80svh;  /* iOS dynamic viewport */
  object-fit: contain;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  border-radius: 4px;
}

.lightbox-info {
  margin-top: 16px;
  text-align: center;
  max-width: 100%;
}

.lightbox-caption {
  color: white;
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.lightbox-exif {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

.exif-data {
  background: rgba(0, 0, 0, 0.6);
  padding: 8px 12px;
  border-radius: 16px;
  backdrop-filter: blur(8px);
  display: inline-block;
  margin-bottom: 4px;
}

.exif-date {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin-top: 4px;
}

/* hero indicators */
.hero-indicators-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 24px;
}

.hero-indicators,
.swiper .hero-indicators {
  position: static; /* below the hero image */
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  z-index: 1;
  padding: 6px 8px;
  margin-top: 10px;
  width: auto;
  bottom: auto;
}

.hero-indicator,
.swiper-pagination-bullet.hero-indicator {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  width: calc(((100vw - 20px) / 14) - 8px); /* Dynamic width based on viewport width and number of indicators */
  max-width: 32px; /* desktop oval maximum width */
  height: 8px;  /* desktop oval height */
  border-radius: 999px;
  background: rgba(255,255,255,.10); /* subtle track */
  border: 1px solid rgba(255,255,255,.14);
  overflow: hidden;
  padding: 0;
  margin: 0 4px; /* 4px left + 4px right = 8px total margin */
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
  opacity: 1;
  display: block;
}

.hero-indicator:hover,
.swiper-pagination-bullet.hero-indicator:hover { 
  background: rgba(255,255,255,.16);
  border-color: rgba(255,255,255,.2);
}

.hero-indicator:focus-visible,
.swiper-pagination-bullet.hero-indicator:focus-visible { 
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hero-indicator .fill,
.swiper-pagination-bullet .fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-origin: left center;
  transform: scaleX(0);
  background: rgba(220,220,220,.6); /* Pale grey for active indicator */
  border-radius: inherit;
}

.hero-indicator.active .fill,
.swiper-pagination-bullet-active .fill { 
  transform: scaleX(1);
}

.hero-indicator:not(.active) .fill,
.swiper-pagination-bullet:not(.swiper-pagination-bullet-active) .fill { 
  transform: scaleX(0);
}

@media (prefers-reduced-motion: reduce){
  .hero-indicator .fill,
  .swiper-pagination-bullet .fill { 
    transform: scaleX(0);
  }
  .hero-indicator.active .fill,
  .swiper-pagination-bullet-active .fill { 
    transform: scaleX(1);
  }
}

/* mobile responsive styles */
@media (max-width: 768px) {
  /* Keep separators hidden on small screens; menu visibility handled by 900px rules */
  .site-nav .sep {
    display: none;
  }
  .site-header{
    position: relative;
  }
  
  /* lightbox mobile adjustments */
  .lightbox {
    padding: max(10px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right))
             max(10px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
  }
  
  .lightbox-close {
    top: calc(env(safe-area-inset-top) + 8px);
    right: calc(env(safe-area-inset-right) + 8px);
    font-size: 28px;
  }
  
  .lightbox-image {
    max-height: 75vh;  /* fallback */
    max-height: 75svh; /* iOS dynamic viewport */
  }
  
  .lightbox-caption {
    font-size: 16px;
  }
  
  .lightbox-exif {
    font-size: 12px;
  }
  
  .exif-data {
    padding: 6px 10px;
  }
}

/* show hero full bleed on narrower screens */
@media (max-aspect-ratio: 14/10) {
  .hero{
    width: 100vw;
    margin-left: calc(50% - 50vw);

  }
  main .hero-aspect {
    border-radius: 0;
  }
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 2rem 0;
}

.content-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 4px 24px rgba(0,0,0,.28);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.content-card:hover {
  border-color: rgba(127,199,255,.4);
  box-shadow: 0 4px 24px rgba(0,0,0,.35);
}

.content-card h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--accent);
}

.content-thumb {
  display: block;
  position: relative;
  margin-bottom: 1rem;
}

.content-thumb img {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 6px;
  overflow: hidden;
  transition: filter 0.3s ease;
  margin-bottom: 0.5rem;
}

.content-thumb:hover img {
  filter: brightness(1.05);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 4px;
  aspect-ratio: 16/9;
  margin-bottom: 1rem;
  width: 100%;
}

.grid-cell {
  aspect-ratio: 32/27;
  border-radius: 4px;
  overflow: hidden;
}

.grid-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  transition: filter 0.3s ease;
  display: block;
}

.image-grid:hover img {
  filter: brightness(1.05);
}

.content-link {
  display: block;
  width: 100%;
  margin: 0.5rem 0;
  padding: 0.8rem 1rem;
  background: rgba(127,199,255,.25);
  color: var(--accent);
  border-radius: 4px;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
  text-align: center;
  box-sizing: border-box;
}

.content-link:hover {
  background: rgba(127,199,255,.35);
  color: #ffffff;
}

.content-link:hover {
  background: rgba(127,199,255,.4);
}

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

@media (max-width: 767px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .image-grid {
    /* On small screens, we keep the 3x2 grid but make it more compact */
    gap: 3px;
  }
}

/* Contact Form Styles */
.contact-form {
  max-width: 600px;
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--fg);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--card);
  color: var(--fg);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(127, 199, 255, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form button[type="submit"] {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  margin-top: 1rem;
}

.contact-form button[type="submit"]:hover:not(:disabled) {
  background: #5fb3ff;
  transform: translateY(-1px);
}

.contact-form button[type="submit"]:disabled {
  background: var(--muted);
  cursor: not-allowed;
  transform: none;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  font-weight: 500;
}

.form-status.success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
}

.form-status.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.cf-turnstile {
  margin: 1rem 0;
}

@media (max-width: 600px) {
  .contact-form {
    margin: 1rem 0;
  }
  
  .form-group input,
  .form-group textarea {
    padding: 0.6rem;
  }
  
  .contact-form button[type="submit"] {
    width: 100%;
    padding: 0.8rem;
  }
}

/* About page collage */
.about-collage {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0 0 32px;
  width: 100%;
}

.about-collage figure {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,.28);
  background: #141414;
}

.about-collage img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  background: #141414;
}

.about-collage-vietnam {
  width: 100%;
}

/* Hide seaside image on mobile */
.about-collage-seaside {
  display: none;
}

/* Desktop layout (640px and wider) - show both images vertically stacked */
@media (min-width: 640px) {
  .about-collage {
    flex-direction: column;
    gap: 10px;
    width: 300px;
    max-width: 50%;
    float: right;
    margin-left: 32px;
  }
  
  .about-collage-vietnam,
  .about-collage-seaside {
    width: 100%;
  }
  
  .about-collage-seaside {
    display: block;
  }
}

/* Desktop layout (1150px and wider) - float right */
@media (min-width: 1150px) {
  .about-collage {
    width: 300px;
    margin-left: 32px;
  }
}

/* About page text justification */
main .long-text p {
  text-align: justify;
  text-justify: inter-word;
}

/* Disable justification for short lines on mobile */
@media (max-width: 639px) {
  main .long-text p {
    text-align: left;
  }
}