:root{--bg: #f5f6f8;--surface: #ffffff;--surface-2: #fafbfc;--border: #e4e7eb;--text: #1c2430;--muted: #6b7685;--accent: #3b5bdb;--accent-soft: #edf0fd;--danger: #d6336c;--unread: #1c2430;--login-glow: #e8ecfb;--shadow: 0 1px 3px rgba(20, 30, 50, .08), 0 8px 24px rgba(20, 30, 50, .06);--radius: 10px;color-scheme:light dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}@media (prefers-color-scheme: dark){:root{--bg: #0f141a;--surface: #171d25;--surface-2: #1e252f;--border: #2b333f;--text: #e4e8ee;--muted: #8b95a4;--accent: #7aa2ff;--accent-soft: #1f2a40;--danger: #ff7aa6;--unread: #f4f7fb;--login-glow: #1a2540;--shadow: 0 1px 3px rgba(0, 0, 0, .5), 0 8px 24px rgba(0, 0, 0, .35)}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-size:14px}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit}.splash{display:grid;place-items:center;height:100%}.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-screen{display:grid;place-items:center;height:100%;background:radial-gradient(circle at 30% 20%,var(--login-glow),var(--bg))}.login-card{background:var(--surface);padding:36px 32px;border-radius:16px;box-shadow:var(--shadow);width:340px;display:flex;flex-direction:column;gap:16px}.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.login-card input{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2)}.login-card input:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}.login-card button[type=submit]{background:var(--accent);color:#fff;border:none;padding:11px;border-radius:8px;font-weight:600}.login-card button[disabled]{opacity:.6}.brand{display:flex;align-items:center;gap:10px}.brand h1{font-size:20px;margin:0}.brand-mark{background:var(--accent);color:#fff;width:32px;height:32px;border-radius:8px;display:grid;place-items:center;font-size:16px}.brand.small{font-weight:600;font-size:15px;padding:4px 2px 12px}.brand.small .brand-mark{width:26px;height:26px;font-size:13px}.form-error{color:var(--danger);font-size:13px;margin:0}.app{display:grid;grid-template-columns:230px 360px 1fr;height:100%}.sidebar{background:var(--surface-2);border-right:1px solid var(--border);padding:14px;display:flex;flex-direction:column;gap:14px;overflow-y:auto}.compose-btn{background:var(--accent);color:#fff;border:none;padding:10px;border-radius:8px;font-weight:600}.folders{display:flex;flex-direction:column;gap:2px}.folder{display:flex;align-items:center;gap:10px;background:none;border:none;padding:8px 10px;border-radius:8px;text-align:left;color:var(--text)}.folder:hover{background:var(--accent-soft)}.folder.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.folder-icon{width:18px;text-align:center}.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);display:flex;justify-content:space-between;align-items:center;margin:6px 4px}.alias-filter{display:flex;flex-direction:column;gap:2px}.alias{background:none;border:none;text-align:left;padding:6px 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