:root {
  --bg: #0b0b0f;
  --panel: #14141c;
  --panel-2: #1c1c28;
  --border: #2a2a3a;
  --text: #f4f4f8;
  --muted: #8a8aa0;
  --primary: #6c8dff;
  --primary-2: #5074ff;
  --danger: #ff5d6c;
  --warning: #ffb95d;
  --success: #5dffa3;
  --radius: 14px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

h1 { font-size: 28px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 0 0 4px; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font: 12.5px/1.4 ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, monospace;
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: 6px;
  color: #c8c8e0;
}

.muted { color: var(--muted); }
.small { font-size: 13px; }
.warning { color: var(--warning); }
.error { color: var(--danger); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card.empty { text-align: center; color: var(--muted); }
.card.center { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; }

.row { display: flex; align-items: center; gap: 12px; }
.row.spread { justify-content: space-between; }

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}

input[type=file], input[type=text], input[type=password] {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.05s ease, background 0.15s ease;
}
.btn:hover { background: #22223a; text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #0b0b0f; }
.btn.primary:hover { background: var(--primary-2); border-color: var(--primary-2); }
.btn.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: rgba(255, 93, 108, 0.12); }
.btn.ghost { background: transparent; }
.btn.big { font-size: 16px; padding: 14px 22px; min-width: 220px; }

pre {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  font: 12px/1.5 ui-monospace, SFMono-Regular, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.spinner {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
  margin: 4px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }