/* ============================================================
   AUTH OVERLAY — login / register modal
   ============================================================ */

.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 19, 14, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 16px;
}

.auth-overlay.hidden { display: none; }

.auth-box {
  background: var(--paper);
  border-radius: var(--r);
  padding: 36px 32px 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.auth-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 28px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  font: 600 14px/1 'Hanken Grotesk', sans-serif;
  transition: background .15s, border-color .15s, color .15s;
}

.auth-tab.active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.auth-box .field { margin-bottom: 14px; }

.auth-error {
  font-size: 13px;
  color: var(--rose);
  margin-bottom: 12px;
  display: none;
}

.auth-error.visible { display: block; }