@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap");

:root {
  --bg: #0d0e0f;
  --surface: #151617;
  --surface-hover: #1b1d1f;
  --border: #282a2d;
  --text: #e7e4dc;
  --muted: #858782;
  --accent: #d7c7a3;
  --shadow: 0 18px 60px rgba(0,0,0,.38);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -20%, rgba(255,255,255,.055), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

button, input, select { font: inherit; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  background: rgba(13,14,15,.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--accent);
  font: 600 18px "JetBrains Mono", monospace;
}

h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -.02em;
}

#subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.controls {
  display: flex;
  gap: 9px;
  align-items: center;
}

.search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(280px, 38vw);
  height: 38px;
  padding: 0 11px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--muted);
}

.search input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 13px;
}

.search input::placeholder { color: #666966; }

select {
  height: 38px;
  padding: 0 30px 0 11px;
  border: 1px solid var(--border);
  border-radius: 9px;
  outline: 0;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}

main {
  width: min(1800px, calc(100% - 36px));
  margin: 0 auto;
  padding: 24px 0 60px;
}

.folders {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 22px;
}

.folder {
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  transition: .18s ease;
}

.folder:hover,
.folder.active {
  border-color: #46484a;
  background: var(--surface);
  color: var(--text);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
}

.card {
  position: relative;
  overflow: hidden;
  min-height: 180px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  aspect-ratio: 16 / 10;
  box-shadow: 0 5px 25px rgba(0,0,0,.12);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: #414347;
  box-shadow: var(--shadow);
}

.card img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform .5s ease, filter .3s ease;
}

.card:hover img {
  transform: scale(1.035);
  filter: brightness(1.04);
}

.card-info {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 30px 12px 11px;
  background: linear-gradient(transparent, rgba(0,0,0,.82));
  opacity: 0;
  transition: opacity .2s ease;
}

.card:hover .card-info { opacity: 1; }

.card-name {
  overflow: hidden;
  color: #f1eee7;
  font: 12px "JetBrains Mono", monospace;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-folder {
  margin-top: 4px;
  color: #a9aaa5;
  font-size: 10px;
}

.empty, .error {
  padding: 80px 20px;
  text-align: center;
  color: var(--muted);
}

.empty-icon {
  margin-bottom: 12px;
  color: #4d4f51;
  font: 40px "JetBrains Mono", monospace;
}

.empty h2 {
  margin: 0 0 7px;
  color: var(--text);
  font-size: 17px;
}

.empty p { margin: 0; font-size: 13px; }

.error {
  padding: 30px;
  border: 1px solid #492c2c;
  border-radius: 10px;
  background: #211718;
  color: #d8a8a8;
}

.hidden { display: none !important; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 60px;
  background: rgba(5,6,7,.94);
  backdrop-filter: blur(12px);
}

.lightbox figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 92vw;
  max-height: 90vh;
  margin: 0;
}

.lightbox img {
  max-width: 92vw;
  max-height: 82vh;
  object-fit: contain;
  border-radius: 5px;
  box-shadow: 0 30px 100px rgba(0,0,0,.6);
}

.lightbox figcaption {
  margin-top: 12px;
  max-width: 80vw;
  overflow: hidden;
  color: #aaa;
  font: 11px "JetBrains Mono", monospace;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.close, .nav {
  position: fixed;
  z-index: 2;
  border: 1px solid #343638;
  background: rgba(21,22,23,.75);
  color: #d8d5cd;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.close {
  top: 18px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 25px;
  line-height: 1;
}

.nav {
  top: 50%;
  width: 45px;
  height: 65px;
  margin-top: -32px;
  border-radius: 9px;
  font-size: 40px;
  line-height: 50px;
}

.nav:hover, .close:hover {
  background: #202224;
  color: white;
}

.prev { left: 20px; }
.next { right: 20px; }

@media (max-width: 700px) {
  .header {
    align-items: stretch;
    flex-direction: column;
    gap: 13px;
    padding: 15px 16px;
  }

  .controls { width: 100%; }

  .search {
    width: 100%;
    flex: 1;
  }

  main {
    width: min(100% - 20px, 1800px);
    padding-top: 15px;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
    gap: 7px;
  }

  .card { border-radius: 7px; }

  .card-info { display: none; }

  .lightbox { padding: 45px 10px; }
  .lightbox img { max-width: 96vw; max-height: 82vh; }
  .nav { width: 38px; height: 50px; font-size: 30px; }
  .prev { left: 8px; }
  .next { right: 8px; }
}