:root {
  --primary: #f6821f;
  --primary-hover: #e56b08;
  --bg: #0f172a;
  --card: #1e293b;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
  --accent: #38bdf8;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background: var(--bg); color: var(--text); display: flex; justify-content: center; padding: 2rem 1rem; min-height: 100vh; }
.container { max-width: 640px; width: 100%; }
.header { text-align: center; margin-bottom: 2rem; }
.badge { display: inline-block; background: rgba(246, 130, 31, 0.15); color: var(--primary); padding: 0.25rem 0.75rem; border-radius: 9999px; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.75rem; border: 1px solid rgba(246, 130, 31, 0.3); }
.header h1 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.header p { color: var(--text-muted); font-size: 0.95rem; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.75rem; box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3); }
.form-group { margin-bottom: 1.25rem; }
label { display: block; font-size: 0.9rem; margin-bottom: 0.5rem; color: var(--text-muted); }
input, textarea { width: 100%; padding: 0.75rem; background: #0f172a; border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 1rem; }
input:focus, textarea:focus { outline: none; border-color: var(--primary); }

button { width: 100%; padding: 0.85rem; background: var(--primary); color: white; border: none; border-radius: 8px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: background 0.2s; }
button:hover { background: var(--primary-hover); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.result-box { margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.result-box.hidden { display: none; }
.result-box h3 { font-size: 1.1rem; margin-bottom: 1rem; color: var(--accent); }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1rem; }
.result-item { background: #0f172a; padding: 0.75rem; border-radius: 8px; text-align: center; border: 1px solid var(--border); }
.result-item .label { display: block; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.result-item .value { font-size: 0.95rem; font-weight: 600; color: #fff; }
.notice { background: rgba(56, 189, 248, 0.1); border-left: 3px solid var(--accent); padding: 0.75rem; border-radius: 4px; font-size: 0.85rem; color: #e0f2fe; }