:root{--bg:#fff;--bg-soft:#f5f5f5;--text:#000;--text-soft:#666;--border:#e0e0e0;--accent:#000;--accent-text:#fff;--card:#fff;--shadow:0 8px 24px #0000000f;--radius:12px;--transition:all .25s ease}[data-theme=dark]{--bg:#000;--bg-soft:#0a0a0a;--text:#fff;--text-soft:#999;--border:#262626;--accent:#fff;--accent-text:#000;--card:#0e0e0e;--shadow:0 8px 24px #ffffff0a}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--text);transition:var(--transition);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;display:flex}a{color:inherit;text-decoration:none}button{font-family:inherit}.icon{fill:currentColor;width:20px;height:20px;display:block}.nav{border-bottom:1px solid var(--border);background:var(--bg);z-index:50;justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0}.nav-brand{letter-spacing:1px;font-size:18px;font-weight:800}.nav-actions{align-items:center;gap:12px;display:flex}.theme-toggle{background:var(--card);border:1px solid var(--border);color:var(--text);cursor:pointer;width:40px;height:40px;transition:var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex}.theme-toggle:hover{border-color:var(--text)}.btn{border:1px solid var(--border);background:var(--accent);color:var(--accent-text);cursor:pointer;transition:var(--transition);border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn:hover{opacity:.85;transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-ghost{color:var(--text);border:1px solid var(--border);background:0 0}.btn-ghost:hover{border-color:var(--text)}.input-group{margin-bottom:18px}.input-group label{color:var(--text-soft);letter-spacing:.3px;margin-bottom:8px;font-size:13px;font-weight:600;display:block}.input-group input,.input-group textarea{border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);transition:var(--transition);border-radius:8px;outline:none;padding:12px 14px;font-family:inherit;font-size:15px}.input-group input:focus,.input-group textarea:focus{border-color:var(--text)}.auth-wrap{background:var(--bg-soft);flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.auth-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:420px;box-shadow:var(--shadow);padding:40px}.auth-card h1{letter-spacing:.5px;margin-bottom:6px;font-size:26px;font-weight:800}.auth-card .subtitle{color:var(--text-soft);margin-bottom:28px;font-size:14px}.auth-footer{text-align:center;color:var(--text-soft);margin-top:20px;font-size:13px}.auth-footer a{color:var(--text);font-weight:600}.auth-footer a:hover{text-decoration:underline}.auth-extra{text-align:right;margin-top:-8px;margin-bottom:16px;font-size:13px}.auth-extra a{color:var(--text-soft)}.auth-extra a:hover{color:var(--text);text-decoration:underline}[hidden]{display:none!important}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;align-items:center;gap:10px;display:flex;position:fixed;top:24px;left:50%;transform:translate(-50%)}.toast{background:var(--accent);color:var(--accent-text);border:1px solid var(--border);box-shadow:var(--shadow);opacity:0;pointer-events:auto;border-radius:10px;align-items:center;gap:8px;max-width:90vw;padding:12px 22px;font-size:14px;font-weight:500;animation:.25s forwards toast-in;display:flex;transform:translateY(-16px)}.toast.error{border-color:#ff4d4d}.toast.success{border-color:var(--text)}@keyframes toast-in{to{opacity:1;transform:translateY(0)}}.toast.hide{animation:.25s forwards toast-out}@keyframes toast-out{to{opacity:0;transform:translateY(-16px)}}.toast .dot{background:currentColor;border-radius:50%;flex-shrink:0;width:8px;height:8px}