:root {
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.06);
  --panel2: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.9);
  --muted: rgba(255, 255, 255, 0.65);
  --border: rgba(255, 255, 255, 0.12);
  --accent: #6ee7ff;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1000px 600px at 20% 0%, rgba(110, 231, 255, 0.20), transparent 60%),
    radial-gradient(1000px 600px at 80% 20%, rgba(168, 85, 247, 0.18), transparent 60%),
    var(--bg);
  color: var(--text);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 18px 42px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.title h1 {
  font-size: 18px;
  margin: 0;
  letter-spacing: 0.2px;
}
.title p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.tabs {
  display: flex;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 14px;
  backdrop-filter: blur(10px);
}

.tab-btn {
  cursor: pointer;
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
}
.tab-btn.active {
  color: var(--text);
  border-color: var(--border);
  background: var(--panel2);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  backdrop-filter: blur(10px);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.hidden { display: none; }

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 10px 0 6px;
}

input[type="text"], input[type="password"], textarea, select {
  width: 100%;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
}
textarea { min-height: 130px; resize: vertical; }

input[type="file"] {
  width: 100%;
  color: var(--muted);
}

.btn {
  margin-top: 12px;
  width: 100%;
  background: linear-gradient(135deg, rgba(110, 231, 255, 0.22), rgba(168, 85, 247, 0.18));
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn:active { transform: translateY(1px); }

.hint {
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 0;
  line-height: 1.5;
}

.result {
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.kv {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
}

.pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  max-height: 340px;
  overflow: auto;
}

.download {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
}
.download:hover { text-decoration: underline; }

.progress-bar {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, rgba(110, 231, 255, 0.8), rgba(168, 85, 247, 0.75));
  transition: width 0.25s ease;
}

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: stretch; }
}