:root {
  --text: #1c2530;
  --muted: #6b7686;
  --line: #e6eaf0;
  --card: #ffffff;
  --accent: #1f9d6b;     /* emerald, ties to the highlands */
  --accent-dark: #178055;
  --ok: #1f9d6b;
  --err: #e2553c;
  --radius: 20px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, sans-serif;
  /* Background photo, scales to any screen incl. 1920 */
  background: url("/bg.jpg") center center / cover no-repeat fixed;
}

/* Dull white wash over the photo so it reads as a soft, muted backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(14,21,18,.32), rgba(9,14,12,.42));
  backdrop-filter: saturate(105%) blur(2px);
  -webkit-backdrop-filter: saturate(105%) blur(2px);
  z-index: 0;
}

.card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow:
    0 1px 2px rgba(16,24,40,.04),
    0 24px 60px -18px rgba(16,24,40,.25);
}

header { text-align: center; }
header h1 { margin: 0; font-size: 26px; font-weight: 700; letter-spacing: -.02em; }
header h1 span { color: var(--accent); }
.sub { margin: 5px 0 24px; color: var(--muted); font-size: 13px; }

.dropzone {
  display: block;
  border: 1.5px dashed #cfd6e0;
  border-radius: 16px;
  padding: 42px 20px;
  text-align: center;
  cursor: pointer;
  background: #fafbfc;
  transition: border-color .15s, background .15s, transform .15s;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  background: #f1faf5;
}
.drop-inner .icon {
  font-size: 26px;
  width: 54px; height: 54px;
  margin: 0 auto 10px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #e8f6ef;
  color: var(--accent);
}
.drop-inner strong { display: block; font-size: 15px; }
.drop-inner span { color: var(--muted); font-size: 13px; }

.filemeta {
  background: #f7f9fb;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 15px;
  font-size: 14px;
  word-break: break-all;
}
.filemeta b { color: var(--accent-dark); }
.hint { color: var(--muted); font-size: 13px; margin: 16px 0 9px; }

.linkrow { display: flex; gap: 8px; }
.linkrow input {
  flex: 1; min-width: 0;
  background: #f7f9fb;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  font-size: 13px;
}
.linkrow input:focus { outline: none; border-color: var(--accent); }

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: border-color .15s, background .15s, color .15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  width: 100%;
  margin-top: 16px;
  padding: 13px;
}
.btn.primary:hover { background: var(--accent-dark); color: #fff; }
.btn.copied { color: var(--ok); border-color: var(--ok); }

.progress { display: flex; align-items: center; gap: 11px; margin-top: 18px; }
.bar { flex: 1; height: 9px; background: #eef1f5; border-radius: 99px; overflow: hidden; }
.bar > div {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), #4cc78f);
  transition: width .15s;
}
.pct { font-variant-numeric: tabular-nums; font-size: 13px; color: var(--muted); min-width: 38px; text-align: right; }

.status { margin-top: 15px; color: var(--muted); font-size: 13px; min-height: 18px; }
.status.ok { color: var(--ok); font-weight: 500; }
.status.err { color: var(--err); }

footer { margin-top: 24px; text-align: center; }
footer a { color: var(--muted); font-size: 13px; text-decoration: none; }
footer a:hover { color: var(--accent-dark); }

@media (max-width: 520px) {
  .card { padding: 24px; }
}