/* ============================================================
 *   有机教会 — Auth UI Styles
 *   Shared sign-in button, modal, and user dropdown styles.
 *   Included by homepage, article pages, and any page with
 *   a #auth-nav-container in the site-nav.
 *   ============================================================ */

/* ===== Sign-in / Sign-out button ===== */
.signin-btn {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  padding: 6px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}
.signin-btn:hover { background: var(--mark); }

/* ===== Auth nav container (right-aligned in site-nav) ===== */
#auth-nav-container {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

/* ===== User profile menu ===== */
.user-profile-menu { position: relative; display: inline-block; }

.user-avatar-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px 5px 10px;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 500;
  color: var(--text);
  cursor: pointer;
  display: flex; align-items: center; gap: 6px;
}
.user-avatar-btn:hover { background: var(--surface-2); }

.user-dropdown {
  position: absolute; right: 0; top: calc(100% + 8px);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 18px 44px -12px var(--shadow-deep);
  min-width: 200px;
  display: none;
  z-index: 100;
}
.user-dropdown.show { display: block; }

.user-dropdown-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.user-dropdown-name { font-weight: 600; color: var(--text); font-size: 14px; }
.user-dropdown-email { font-size: 12px; color: var(--faint); word-break: break-all; }

.user-dropdown-item {
  display: block; width: 100%;
  padding: 10px 16px;
  text-align: left;
  background: transparent; border: none;
  font-family: var(--font-ui);
  font-size: 14px; color: var(--text);
  cursor: pointer;
}
.user-dropdown-item:hover { background: var(--surface); color: var(--accent); }
.user-dropdown-item.logout { border-top: 1px solid var(--border); color: var(--accent); }
.user-dropdown-item.logout:hover { background: var(--mark); }

/* ===== Auth Modal ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(24,16,8,0.55);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }

.modal-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 90%; max-width: 420px;
  padding: var(--space-lg);
  box-shadow: 0 30px 60px -20px var(--shadow-deep);
  transform: translateY(20px);
  transition: transform 0.25s;
  position: relative;
}
.modal-overlay.show .modal-card { transform: translateY(0); }

.modal-close {
  position: absolute; top: 14px; right: 14px;
  background: transparent; border: none;
  font-size: 24px; color: var(--faint); cursor: pointer;
}
.modal-close:hover { color: var(--text); }

.modal-title {
  font-family: var(--font-body);
  font-size: 24px; font-weight: 600;
  margin-bottom: 6px;
}
.modal-desc {
  font-size: 14px; color: var(--muted);
  margin-bottom: var(--space-md);
}

.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-ui);
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.15s, background 0.15s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}

.form-error {
  color: #8A3517;
  font-size: 13px;
  margin-bottom: var(--space-sm);
  padding: 10px;
  background: var(--mark);
  border-radius: 4px;
  border: 1px solid rgba(138,53,23,0.25);
}

.modal-footer-text {
  text-align: center;
  margin-top: var(--space-md);
  font-size: 14px;
  color: var(--muted);
}
.modal-footer-text a {
  color: var(--accent);
  font-weight: 500;
  cursor: pointer;
}
.modal-footer-text a:hover { text-decoration: underline; }

.btn.w-100 { width: 100%; justify-content: center; }

/* ===== Auth button positioning for top-nav (blog listing, books) ===== */
.top-nav #auth-nav-container {
  position: static;
  transform: none;
}