.user-nav { display: flex; align-items: center; gap: 8px; margin-left: 8px; white-space: nowrap; }
.user-nav button, .user-nav a { border: 0; background: transparent; color: var(--text-secondary, #94a3b8); font: inherit; font-size: .84rem; cursor: pointer; text-decoration: none; padding: 7px 8px; }
.user-nav button:hover, .user-nav a:hover { color: #fff; }
.user-nav .user-register { color: #fff; border: 1px solid rgba(255,255,255,.16); border-radius: 6px; }
.user-nav .user-account { color: #67e8f9; font-weight: 700; }
.auth-modal { position: fixed; inset: 0; z-index: 3000; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(2,6,23,.78); }
.auth-modal.active { display: flex; }
.auth-panel { width: min(420px,100%); background: #0d1320; border: 1px solid rgba(255,255,255,.12); border-radius: 8px; box-shadow: 0 24px 80px rgba(0,0,0,.5); overflow: hidden; }
.auth-head { display: flex; align-items: center; border-bottom: 1px solid rgba(255,255,255,.09); }
.auth-tab { flex: 1; padding: 16px; border: 0; background: transparent; color: #94a3b8; font-size: 1rem; cursor: pointer; }
.auth-tab.active { color: #fff; box-shadow: inset 0 -2px #3b82f6; }
.auth-close { width: 48px; height: 48px; border: 0; background: transparent; color: #94a3b8; font-size: 1.7rem; cursor: pointer; }
.auth-form { display: none; padding: 24px; }
.auth-form.active { display: block; }
.auth-form label { display: block; margin: 14px 0 6px; color: #94a3b8; font-size: .86rem; }
.auth-form input[type="text"], .auth-form input[type="tel"], .auth-form input[type="password"] { width: 100%; padding: 11px 12px; border: 1px solid rgba(255,255,255,.14); border-radius: 6px; background: #111827; color: #fff; font: inherit; }
.auth-submit { width: 100%; margin-top: 20px; padding: 12px; border: 0; border-radius: 6px; background: #2563eb; color: #fff; font-size: 1rem; cursor: pointer; }
.auth-submit:disabled { opacity: .55; cursor: wait; }
.auth-consent { display: flex; gap: 8px; align-items: flex-start; margin-top: 15px; color: #94a3b8; font-size: .8rem; line-height: 1.6; }
.auth-consent input { margin-top: 4px; }
.auth-consent a { color: #67e8f9; }
.auth-error { min-height: 20px; margin-top: 12px; color: #fca5a5; font-size: .85rem; }
@media (max-width: 1100px) { .nav .user-nav { margin: 10px 0 0; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.08); justify-content: center; } }