:root {
  color-scheme: light dark;
  --bg: #0d1117;
  --card: #161b22;
  --card-2: #1c232c;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4493f8;
  --accent-strong: #1f6feb;
  --good: #3fb950;
  --danger: #f85149;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -200px, #15213a 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 20px 40px;
}

.hero { text-align: center; margin-bottom: 28px; }
.hero .logo {
  width: 96px; height: 96px; object-fit: contain;
  display: block; margin: 0 auto 6px;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.45));
}
.hero h1 { font-size: 40px; margin: 0 0 6px; letter-spacing: -0.5px; }
.tagline { color: var(--muted); margin: 0; font-size: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
.card + .card { margin-top: 20px; }

/* Tabs */
.tabs {
  display: flex;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 18px;
}
.tab {
  flex: 1;
  padding: 9px 12px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab.is-active { background: var(--card-2); color: var(--text); }

/* Dropzone */
.dropzone {
  display: block;
  position: relative;
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.is-drag { border-color: var(--accent); background: rgba(68, 147, 248, 0.06); }
.dropzone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.dz-icon { font-size: 34px; }
.dz-text { margin-top: 8px; font-size: 15px; }
.dz-hint { margin-top: 4px; color: var(--muted); font-size: 13px; }
.dz-file {
  margin-top: 12px; display: inline-block;
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 5px 14px; font-size: 13px;
}

/* Paste */
.type-row { display: flex; align-items: center; gap: 16px; margin-bottom: 12px; }
.type-label { color: var(--muted); font-size: 13px; font-weight: 600; }
.radio { font-size: 14px; cursor: pointer; }
textarea {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
}
textarea:focus { outline: none; border-color: var(--accent); }

/* Advanced */
.advanced { margin-top: 16px; }
.advanced summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.field { display: block; margin-top: 12px; }
.field > span { display: block; font-size: 13px; margin-bottom: 6px; }
.field small { color: var(--muted); font-weight: 400; }
.field input {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; font: inherit;
}
.field input:focus { outline: none; border-color: var(--accent); }

/* Buttons */
.btn-primary {
  width: 100%;
  margin-top: 18px;
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: var(--accent-strong);
  color: #fff;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}
.btn-primary:hover { background: var(--accent); }
.btn-primary:disabled { opacity: 0.6; cursor: progress; }

.error {
  margin: 14px 0 0;
  color: var(--danger);
  font-size: 14px;
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid rgba(248, 81, 73, 0.4);
  border-radius: 8px;
  padding: 10px 12px;
}

/* Result */
.result h2 { margin: 0 0 14px; font-size: 18px; }
.link-row { display: flex; gap: 8px; }
#resultUrl {
  flex: 1; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; padding: 11px 12px;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 14px;
}
.btn-copy {
  border: 1px solid var(--border); background: var(--card-2); color: var(--text);
  border-radius: 8px; padding: 0 16px; font: inherit; font-weight: 600; cursor: pointer;
}
.btn-copy:hover { border-color: var(--accent); }
.btn-copy.copied { color: var(--good); border-color: var(--good); }
.result-actions { display: flex; align-items: center; gap: 18px; margin-top: 14px; font-size: 14px; }
.result-actions a { color: var(--accent); text-decoration: none; }
.result-actions a:hover { text-decoration: underline; }
.badge {
  margin-left: auto; text-transform: uppercase; font-size: 11px; font-weight: 700;
  letter-spacing: 0.5px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 3px 10px;
}

.foot { text-align: center; color: var(--muted); font-size: 13px; margin-top: 28px; }
.foot a { color: var(--muted); }