/* ════════════════════════════
   OmicsLab Auth — Modal & Nav
   ════════════════════════════ */

/* ── Nav sign-in button ── */
.nav-signin-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  color: #e6edf3;
  background: #238636;
  border: 1px solid rgba(63, 185, 80, 0.4);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.nav-signin-btn:hover { background: #2ea043; }

/* ── Modal overlay ── */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(1, 4, 9, 0.72);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.auth-modal-open {
  opacity: 1;
  pointer-events: auto;
}

/* ── Modal container ── */
.auth-modal {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  animation: auth-slide-up 0.2s ease;
}

.auth-modal-wide { max-width: 560px; }

@keyframes auth-slide-up {
  from { transform: translateY(12px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Header ── */
.auth-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.25rem 0.85rem;
  border-bottom: 1px solid #21262d;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: #e6edf3;
}

.auth-close {
  background: transparent;
  border: none;
  color: #8b949e;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: color 0.15s, background 0.15s;
}

.auth-close:hover { color: #e6edf3; background: #21262d; }

/* ── Tabs ── */
.auth-tabs {
  display: flex;
  padding: 0.75rem 1.25rem 0;
  gap: 0;
  border-bottom: 1px solid #21262d;
}

.auth-tab {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #8b949e;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.auth-tab-active {
  color: #e6edf3;
  border-bottom-color: #3fb950;
}

.auth-tab:hover:not(.auth-tab-active) { color: #c9d1d9; }

/* ── Social auth ── */
.auth-social-row {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.25rem 0;
}

.auth-social-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid #30363d;
  background: #0d1117;
  color: #c9d1d9;
  transition: background 0.15s, border-color 0.15s;
}

.auth-social-btn:hover { background: #21262d; border-color: #8b949e; }
.auth-social-github:hover { border-color: #e6edf3; color: #e6edf3; }
.auth-social-linkedin:hover { border-color: #0A66C2; }

/* ── Divider ── */
.auth-divider {
  display: flex;
  align-items: center;
  padding: 0.75rem 1.25rem 0;
  gap: 0.75rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #21262d;
}

.auth-divider span {
  font-size: 0.72rem;
  color: #8b949e;
}

/* ── Form ── */
.auth-form {
  padding: 0.75rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.auth-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.auth-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: #c9d1d9;
}

.auth-input {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #e6edf3;
  font-size: 0.82rem;
  font-family: inherit;
  padding: 0.5rem 0.75rem;
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.15s;
}

.auth-input:focus {
  outline: none;
  border-color: #58a6ff;
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.15);
}

.auth-input::placeholder { color: #8b949e; }

.auth-select { cursor: pointer; }
.auth-select option { background: #161b22; }

.auth-pw-wrap {
  position: relative;
}

.auth-pw-wrap .auth-input { padding-right: 2.5rem; }

.auth-pw-toggle {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: #8b949e;
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  transition: color 0.15s;
}

.auth-pw-toggle:hover { color: #c9d1d9; }

/* ── Error ── */
.auth-error {
  font-size: 0.75rem;
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.25);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
}

/* ── Submit button ── */
.auth-submit-btn {
  width: 100%;
  padding: 0.65rem;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: inherit;
  background: #238636;
  border: 1px solid rgba(63, 185, 80, 0.4);
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 0.25rem;
}

.auth-submit-btn:hover:not(:disabled) { background: #2ea043; }
.auth-submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Footer links ── */
.auth-footer-links {
  padding: 0.25rem 1.25rem 1.25rem;
  text-align: center;
}
.auth-local-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  font-size: 0.72rem;
  color: #6e7681;
  line-height: 1.5;
  background: #0d1117;
  border: 1px solid #21262d;
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  margin: 0.25rem 1.25rem 1rem;
}
.auth-local-notice svg { flex-shrink: 0; margin-top: 0.15rem; color: #484f58; }

.auth-link-btn {
  background: transparent;
  border: none;
  color: #58a6ff;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s;
}

.auth-link-btn:hover { color: #79c0ff; text-decoration: underline; }

/* ── OAuth setup box ── */
.auth-setup-box {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 0.85rem 1rem;
}

/* ── Account modal ── */
.auth-account-body {
  padding: 1.25rem;
}

.auth-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8b949e;
  margin-bottom: 0.65rem;
  border-bottom: 1px solid #21262d;
  padding-bottom: 0.35rem;
  margin-top: 0.5rem;
}

.auth-avatar-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.auth-avatar-preview {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #238636;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  overflow: hidden;
}

.auth-avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Linked accounts ── */
.auth-linked-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.auth-linked-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid #30363d;
  background: #0d1117;
  color: #c9d1d9;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.auth-linked-btn:hover { background: #21262d; }

.auth-linked-connected {
  border-color: rgba(63, 185, 80, 0.4);
  color: #3fb950;
}

.auth-linked-check {
  color: #3fb950;
  display: flex;
  align-items: center;
}

.auth-linked-plus {
  font-size: 0.65rem;
  background: rgba(88, 166, 255, 0.12);
  color: #58a6ff;
  border: 1px solid rgba(88, 166, 255, 0.3);
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
}

/* ── Danger zone ── */
.auth-danger-zone {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #21262d;
}

.auth-signout-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-family: inherit;
  background: transparent;
  border: 1px solid rgba(255, 107, 107, 0.3);
  color: #ff6b6b;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.auth-signout-btn:hover { background: rgba(255, 107, 107, 0.08); }

/* ── Spinner ── */
.auth-modal .auth-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #21262d;
  border-top-color: #3fb950;
  border-radius: 50%;
  animation: auth-spin 0.7s linear infinite;
  margin: 2rem auto;
}

@keyframes auth-spin { to { transform: rotate(360deg); } }


/* ── Label hint ── */
.auth-label-hint {
  font-weight: 400;
  color: #6e7681;
  font-size: 0.7rem;
}

/* ── Mobile ── */
@media (max-width: 540px) {
  .auth-modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .auth-modal {
    border-radius: 14px 14px 0 0;
    max-width: 100%;
    max-height: 95vh;
    animation: auth-slide-mobile 0.22s ease;
  }
  .auth-modal-wide { max-width: 100%; }
  @keyframes auth-slide-mobile {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
  }
  .auth-field-row { grid-template-columns: 1fr; }
  .auth-social-row { flex-direction: column; }
  .auth-form { padding: 0.75rem 1rem 1rem; }
  .auth-modal-header { padding: 1rem 1rem 0.75rem; }
  .auth-account-body { padding: 1rem; }
  .auth-local-notice { margin-left: 1rem; margin-right: 1rem; }
  .auth-footer-links { padding-left: 1rem; padding-right: 1rem; }
  /* Bottom safe-area padding on iOS */
  .auth-form { padding-bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px)); }
}