:root {
  --navy-900: #04101f;
  --navy-800: #071b31;
  --navy-700: #0b2744;
  --navy-600: #123457;
  --line: rgba(120, 178, 232, 0.18);
  --azure: #29a3e0;
  --azure-bright: #57c7f5;
  --teal: #21c8b7;
  --ink: #eaf3fb;
  --ink-soft: #a8c2d8;
  --ink-faint: #6e8ba5;
  --danger: #ff6b6b;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 600px at 12% -8%, rgba(41, 163, 224, 0.20), transparent 60%),
    radial-gradient(900px 500px at 92% 4%, rgba(33, 200, 183, 0.14), transparent 62%),
    var(--navy-900);
  min-height: 100vh;
  line-height: 1.55;
}

a { color: var(--azure-bright); }

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 27, 49, 0.9), rgba(4, 16, 31, 0.2));
}

.masthead-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.4rem 1.25rem 2rem;
}

.platform {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--azure-bright);
  border: 1px solid var(--line);
  background: rgba(41, 163, 224, 0.08);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
}

.platform-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(33, 200, 183, 0.18);
}

h1 {
  font-size: clamp(1.9rem, 5.4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 1rem 0 0.5rem;
  background: linear-gradient(95deg, #ffffff 10%, var(--azure-bright) 75%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 44ch;
  margin: 0 0 0.9rem;
}

.place {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.pin { width: 16px; height: 16px; fill: var(--teal); }

/* ---------- layout ---------- */

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3rem;
  display: grid;
  gap: 2rem;
}

h2 {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
  color: var(--ink);
}

/* ---------- uploader ---------- */

.uploader {
  background: linear-gradient(180deg, rgba(11, 39, 68, 0.75), rgba(7, 27, 49, 0.6));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-align: center;
  padding: 2.1rem 1.25rem;
  border: 2px dashed rgba(87, 199, 245, 0.35);
  border-radius: var(--radius);
  background: rgba(4, 16, 31, 0.45);
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.18s;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.is-dragging {
  border-color: var(--azure-bright);
  background: rgba(41, 163, 224, 0.10);
  outline: none;
}

.dropzone.is-dragging { transform: scale(1.01); }

.dropzone-icon { width: 30px; height: 30px; fill: var(--azure-bright); }
.dropzone-title { font-weight: 640; font-size: 1.02rem; }
.dropzone-hint { font-size: 0.82rem; color: var(--ink-faint); }

.fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 0.7rem;
  margin: 1rem 0 0;
}

@media (max-width: 560px) {
  .fields { grid-template-columns: 1fr; }
}

input[type="text"] {
  width: 100%;
  padding: 0.72rem 0.9rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: rgba(4, 16, 31, 0.6);
  border: 1px solid var(--line);
  border-radius: 10px;
}

input[type="text"]::placeholder { color: var(--ink-faint); }
input[type="text"]:focus {
  outline: none;
  border-color: var(--azure);
  box-shadow: 0 0 0 3px rgba(41, 163, 224, 0.18);
}

.actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

button[type="submit"] {
  font: inherit;
  font-weight: 650;
  color: #03121f;
  background: linear-gradient(120deg, var(--azure-bright), var(--teal));
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.6rem;
  cursor: pointer;
  transition: filter 0.18s, transform 0.12s;
}

button[type="submit"]:hover:not(:disabled) { filter: brightness(1.08); }
button[type="submit"]:active:not(:disabled) { transform: translateY(1px); }
button[type="submit"]:disabled { opacity: 0.4; cursor: not-allowed; }

.status { font-size: 0.88rem; color: var(--ink-soft); }
.status.is-error { color: var(--danger); }
.status.is-ok { color: var(--teal); }

.queue { list-style: none; margin: 0.9rem 0 0; padding: 0; display: grid; gap: 0.4rem; }

.queue li {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.83rem;
  color: var(--ink-soft);
  background: rgba(4, 16, 31, 0.5);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.45rem 0.7rem;
}

.queue .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue .state { flex: none; color: var(--ink-faint); }
.queue li.done .state { color: var(--teal); }
.queue li.failed .state { color: var(--danger); }

/* ---------- wall ---------- */

.wall-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.wall-head h2 { margin-bottom: 1rem; }

.live {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(33, 200, 183, 0.5); opacity: 1; }
  50% { box-shadow: 0 0 0 6px rgba(33, 200, 183, 0); opacity: 0.55; }
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.85rem;
}

@media (max-width: 480px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0.6rem; }
}

.card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--navy-800);
  cursor: zoom-in;
  animation: rise 0.45s ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--navy-700);
}

.card figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.6rem 0.7rem 0.6rem;
  font-size: 0.8rem;
  background: linear-gradient(180deg, transparent, rgba(3, 12, 22, 0.92));
  display: grid;
  gap: 0.1rem;
}

.card .cap { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .who { color: var(--azure-bright); font-size: 0.72rem; font-weight: 600; }

.card .delete {
  position: absolute;
  top: 0.4rem; right: 0.4rem;
  width: 26px; height: 26px;
  border: 0;
  border-radius: 50%;
  background: rgba(3, 12, 22, 0.75);
  color: var(--danger);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.empty {
  color: var(--ink-faint);
  font-size: 0.92rem;
  text-align: center;
  padding: 2rem 1rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.empty[hidden] { display: none; }

/* ---------- lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: rgba(2, 9, 17, 0.92);
  backdrop-filter: blur(6px);
}

.lightbox[hidden] { display: none; }

.lightbox figure { margin: 0; max-width: min(1000px, 100%); text-align: center; }

.lightbox img {
  max-width: 100%;
  max-height: 78vh;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.lightbox figcaption {
  margin-top: 0.9rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.lightbox-close {
  position: absolute;
  top: 1rem; right: 1.25rem;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(11, 39, 68, 0.8);
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.25rem 2.5rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

footer p { margin: 0.25rem 0; }
.fineprint { font-size: 0.78rem; opacity: 0.8; }