/*
 * auth.css — Slide-in auth panel + shared nav/footer components
 * Loaded on all pages (home, track landing, lab).
 * Clerk SDK hookup: see docs/ROADMAP.md Plan 3 (freemium) and Plan 5 (security).
 */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&display=swap');

/* ── Shared: site footer strip ────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 1.1rem 1.5rem;
}

.site-footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.site-footer-text {
  font-size: 0.65rem;
  font-weight: 600;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  opacity: 0.5;
}

.site-footer-sep {
  font-size: 0.65rem;
  color: var(--muted);
  opacity: 0.3;
}

.site-footer-link {
  font-size: 0.65rem;
  font-weight: 600;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  opacity: 0.5;
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.site-footer-link:hover {
  opacity: 1;
  color: var(--text);
}

/* ── Home nav: "by Stable Panther" sub-label ──────────────────── */
.h-nav-brand-name {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.h-nav-sublabel {
  font-size: 0.52rem;
  font-weight: 600;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  opacity: 0;
  margin-left: 0.1rem;
  transition: opacity 0.25s ease;
  white-space: nowrap;
}

.h-nav-brand:hover .h-nav-sublabel {
  opacity: 0.45;
}

@media (max-width: 580px) {
  .h-nav-sublabel {
    display: none;
  }
}

/* ── Nav user chip (shown after sign in) ─────────────────────── */
.nav-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  background: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-user-chip:hover {
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text);
}

.nav-user-label {
  opacity: 0.7;
  max-width: 7rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Nav sign in button (shared across pages) ─────────────────── */
.nav-sign-in-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  flex-shrink: 0;
}

.nav-sign-in-btn:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(48, 54, 61, 0.5);
}

/* ── Sidebar sign in (lab page) ───────────────────────────────── */
.sidebar-auth {
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--border);
}

.sidebar-sign-in-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--muted);
  opacity: 0.65;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition: color 0.2s ease, opacity 0.2s ease, border-color 0.2s ease;
}

.sidebar-sign-in-btn:hover {
  color: var(--text);
  opacity: 1;
  border-color: rgba(255, 255, 255, 0.12);
}

/* ── Auth overlay ─────────────────────────────────────────────── */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.auth-overlay--visible {
  opacity: 1;
  pointer-events: all;
}

/* ── Auth slide-in panel ──────────────────────────────────────── */
.auth-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(420px, 100vw);
  height: 100vh;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
  z-index: 201;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.auth-panel--open {
  transform: translateX(0);
}

.auth-panel-header {
  display: flex;
  justify-content: flex-end;
  padding: 1.1rem 1.25rem 0;
  flex-shrink: 0;
}

.auth-panel-close {
  background: none;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.auth-panel-close:hover {
  color: var(--text);
  border-color: var(--border);
  background: rgba(48, 54, 61, 0.5);
}

.auth-panel-body {
  padding: 1.5rem 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  flex: 1;
}

/* Logo lockup inside panel */
.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.auth-logo-img {
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.auth-logo-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* Heading + sub */
.auth-heading {
  font-family: 'Syne', var(--font);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1;
}

.auth-sub {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 300;
  margin: -0.65rem 0 0;
  line-height: 1.55;
}

/* Google OAuth button */
.auth-google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.auth-google-btn:hover {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(48, 54, 61, 0.6);
}

/* "or" divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.5;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Email / password form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.auth-field label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.auth-field input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.7rem 0.9rem;
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s ease;
}

.auth-field input::placeholder {
  color: rgba(139, 148, 158, 0.4);
}

.auth-field input:focus {
  border-color: var(--accent);
}

.auth-submit {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--accent);
  border: none;
  border-radius: 0.5rem;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: opacity 0.2s ease;
  margin-top: 0.25rem;
}

.auth-submit:hover {
  opacity: 0.86;
}

/* Toggle sign in / sign up */
.auth-toggle {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.auth-toggle-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s ease;
}

.auth-toggle-btn:hover {
  opacity: 0.75;
}

/* Forgot password */
.auth-forgot {
  text-align: center;
  margin-top: -0.5rem;
}

.auth-forgot-link {
  font-size: 0.72rem;
  color: var(--muted);
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.auth-forgot-link:hover {
  opacity: 1;
}

/* Error message */
.auth-error {
  font-size: 0.78rem;
  color: var(--accent);
  background: rgba(255, 59, 59, 0.08);
  border: 1px solid rgba(255, 59, 59, 0.2);
  border-radius: 0.4rem;
  padding: 0.55rem 0.75rem;
  margin: 0;
  line-height: 1.45;
}