/* ==========================================================================
   QueTogether — Auth (login / signup)
   ========================================================================== */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth-visual {
  position: relative; overflow: hidden;
  background: radial-gradient(circle at 30% 20%, #5b2ea6, #12081f 70%);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: var(--sp-7);
}
.auth-visual::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(500px 400px at 80% 90%, rgba(168,85,247,.35), transparent 60%);
}
.auth-visual .av-top, .auth-visual .av-mid, .auth-visual .av-bottom { position: relative; z-index: 1; }
.auth-visual .av-mid h2 { font-size: 2.6rem; margin-bottom: 16px; }
.auth-visual .av-mid p { color: rgba(255,255,255,.75); font-size: 1.1rem; max-width: 400px; }
.auth-quote { background: rgba(0,0,0,.25); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r-lg); padding: var(--sp-4); backdrop-filter: blur(6px); }
.auth-quote p { font-size: .95rem; margin-bottom: 12px; }
.auth-quote .aq-author { display: flex; align-items: center; gap: 10px; font-size: .85rem; }

.auth-form-wrap { display: flex; align-items: center; justify-content: center; padding: var(--sp-6); }
.auth-form { width: 100%; max-width: 400px; }
.auth-form h1 { font-size: 2rem; margin-bottom: 8px; }
.auth-form > p.sub { color: var(--text-muted); margin-bottom: var(--sp-6); }
.oauth-row { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--sp-5); }
.oauth-btn { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 12px; border-radius: var(--r-md); background: var(--surface-2); border: 1px solid var(--border); font-weight: 600; font-size: .92rem; transition: all .15s; }
.oauth-btn:hover { background: var(--surface-hover); border-color: var(--border-strong); }
.oauth-btn svg { width: 20px; height: 20px; }
.auth-sep { display: flex; align-items: center; gap: 14px; color: var(--text-dim); font-size: .82rem; margin: var(--sp-5) 0; }
.auth-sep::before, .auth-sep::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-foot { text-align: center; margin-top: var(--sp-5); font-size: .9rem; color: var(--text-muted); }
.auth-foot a { color: var(--primary); font-weight: 600; }
@media (max-width: 860px) { .auth { grid-template-columns: 1fr; } .auth-visual { display: none; } }