:root {
  --bg: #0f1115;
  --card: #1a1d24;
  --fg: #e6e8ec;
  --muted: #9aa0ab;
  --accent: #4f9cf9;
  --danger: #f97066;
  --success: #32d583;
  --border: #2a2e37;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.user { color: var(--muted); font-size: .9rem; display: flex; gap: .5rem; align-items: center; }
.inline { display: inline; margin: 0; }

main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 560px;
}

.card.center { text-align: center; }

h1 { margin-top: 0; font-size: 1.4rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

label { display: block; margin: 1rem 0 .35rem; font-weight: 600; font-size: .9rem; }

textarea, select, input[type=text] {
  width: 100%;
  background: #0f1115;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .65rem .75rem;
  font-size: 1rem;
  font-family: inherit;
}

textarea { resize: vertical; }

button, .button {
  display: inline-block;
  margin-top: 1.25rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: .7rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

button:disabled { opacity: .6; cursor: progress; }
.button.danger, button.danger { background: var(--danger); }
button.copy { background: transparent; border: 1px solid var(--border); color: var(--fg); margin-left: .5rem; }
button.link { background: none; border: none; color: var(--accent); cursor: pointer; padding: 0; font: inherit; }

.result { margin-top: 1.25rem; }
.link-box input { margin-top: .5rem; }
.success { color: var(--success); font-weight: 600; }

pre.secret {
  background: #0f1115;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: left;
}

input[type=file] {
  width: 100%;
  color: var(--fg);
  font-size: .9rem;
  margin-top: .35rem;
}
input[type=file]::file-selector-button {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .45rem .8rem;
  margin-right: .75rem;
  cursor: pointer;
  font: inherit;
}

button.copied { background: var(--success); color: #04210f; }

.dropzone {
  margin-top: .35rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 1rem;
  transition: border-color .15s, background .15s;
}
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(79, 156, 249, .08);
}
.dropzone input[type=file] { margin-top: 0; }
.dropzone-hint { margin: .6rem 0 0; }
ul.files.chosen { margin-top: .6rem; }
ul.files.chosen:empty { display: none; }
ul.files.chosen li { justify-content: space-between; }

.secret-title .files-title { font-size: 1rem; margin: 1.5rem 0 .5rem; }
ul.files { list-style: none; padding: 0; margin: 0; }
ul.files li {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .4rem 0;
  border-top: 1px solid var(--border);
}
.button.download { margin-top: 0; background: transparent; border: 1px solid var(--accent); color: var(--accent); }

footer {
  text-align: center;
  color: var(--muted);
  font-size: .8rem;
  padding: 1.5rem;
  border-top: 1px solid var(--border);
}