:root{color-scheme:dark;--bg: #0f1115;--card-bg: #181b22;--border: #2a2e38;--text: #e6e8ec;--text-muted: #9aa0ac;--accent: #5b8def;--accent-hover: #4a78d6;--error: #ef6a6a}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}.page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.card{width:100%;max-width:420px;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:32px 28px}h1{font-size:1.4rem;margin:0 0 12px}.lead{color:var(--text-muted);line-height:1.6;margin:0 0 24px}.hint{color:var(--text-muted);font-size:.85rem;margin-top:20px;text-align:center}.error-text{color:var(--error);font-size:.85rem;margin:8px 0 0}.button-primary{display:block;width:100%;padding:12px 16px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;text-align:center;text-decoration:none;box-sizing:border-box}.button-primary:hover{background:var(--accent-hover)}.button-primary:disabled{opacity:.6;cursor:not-allowed}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;font-size:.9rem}.field input,.field select{padding:10px 12px;background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:1rem}.field input:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px}