/* ==========================================================================
   auth.css — Landing, login, signup pages (uses design tokens)
   Light/dark theme inherits via [data-theme="light"] overrides in tokens.css
   ========================================================================== */

/* ---------- Landing page ---------- */
body.landing {
  margin: 0;
  background: var(--bg-base);
  background-image: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-elevated) 100%);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  transition: background var(--tr-slow), color var(--tr-slow);
}

.landing-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-4) var(--sp-8);
  border-bottom: 1px solid var(--border-default);
}
.landing-head .brand a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-xl);
  letter-spacing: 0.025em;
}
.landing-nav { display: flex; gap: var(--sp-3); }

/* Landing page CTAs — base look comes from unified .btn-* in tokens.css.
   Only override font-size for the .lg variant on the landing page. */
.landing-main .btn-primary.lg,
.landing-main .btn-ghost.lg,
.landing-head .btn-primary.lg,
.landing-head .btn-ghost.lg {
  font-size: var(--fs-lg);
}

.landing-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sp-12) var(--sp-8);
}
.hero {
  text-align: center;
  margin-bottom: var(--sp-12);
}
.hero h1 {
  font-family: var(--font-sans);
  font-size: var(--fs-4xl);
  line-height: var(--lh-tight);
  font-weight: var(--fw-light);
  margin: 0 0 var(--sp-6);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.hero .lede {
  font-size: var(--fs-xl);
  line-height: var(--lh-loose);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto var(--sp-10);
}
.hero-cta {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-6);
}
.feat {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: border-color var(--tr-fast), background var(--tr-fast);
}
.feat:hover {
  border-color: var(--accent);
  background: var(--bg-elevated-2);
}
.feat h3 {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-sans);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
}
.feat p {
  margin: 0;
  font-size: var(--fs-md);
  line-height: var(--lh-normal);
  color: var(--text-secondary);
}

.landing-foot {
  display: flex;
  justify-content: space-between;
  padding: var(--sp-6) var(--sp-8);
  border-top: 1px solid var(--border-default);
  font-size: var(--fs-base);
  color: var(--text-muted);
}
.landing-foot .dim { color: var(--text-dim); }

/* ---------- Login / Signup ---------- */
body.auth-page {
  margin: 0;
  background-color: var(--bg-base);
  background-image: none;
  color: var(--text-primary);
  color-scheme: dark;
  font-family: var(--font-sans);
  letter-spacing: 0.01em;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-6);
  transition: background-color var(--tr-slow), color var(--tr-slow);
}
html[data-theme="light"] body.auth-page,
body.auth-page[data-theme="light"] {
  color-scheme: light;
}

.auth-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-muted);
  border-radius: 20px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: none;
  position: relative;
  transition: background var(--tr-slow), border-color var(--tr-slow);
}
.auth-brand {
  text-align: center;
  margin-bottom: var(--sp-6);
}
.auth-brand a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--fw-light);
  font-size: 32px;
  letter-spacing: -0.02em;
  display: inline-block;
}
.auth-logo {
  max-width: 200px;
  height: auto;
  transition: filter 0.2s ease;
}
/* The logo PNG ships with dark ink on transparent. In dark mode it
   reads as a dim smudge; flip it to a pure-white silhouette via the
   `brightness(0) invert(1)` filter chain. Same trick the sidebar uses
   on its brand mark. */
[data-theme="dark"] .auth-logo,
html[data-theme="dark"] .auth-logo,
body[data-theme="dark"] .auth-logo,
[data-theme="steel"] .auth-logo,
html[data-theme="steel"] .auth-logo,
body[data-theme="steel"] .auth-logo {
  filter: brightness(0) invert(1);
}

.theme-toggle {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  background: transparent;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  transition: all var(--tr-base);
}
.theme-toggle:hover {
  background: var(--bg-elevated-2);
  border-color: var(--accent);
  color: var(--accent);
}
.theme-toggle .theme-ico {
  width: 18px;
  height: 18px;
}

.auth-card h1 {
  margin: 0 0 var(--sp-6);
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: var(--fw-light);
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--text-primary);
}
.auth-card form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.auth-card form[hidden] { display: none; }
.auth-card label {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-secondary);
}
.auth-card label span { font-weight: var(--fw-medium); }
.auth-card input[type=text],
.auth-card input[type=password],
.auth-card input[type=email] {
  -webkit-appearance: none;
  appearance: none;
  background-color: var(--bg-input);
  background-image: none;
  border: 1px solid var(--border-default);
  border-radius: var(--r-control, 8px);
  padding: 12px 16px;
  color: var(--text-primary);
  caret-color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  letter-spacing: 0.01em;
  outline: none;
  box-shadow: none;
  transition: border-color var(--dur-ui, var(--tr-fast)) var(--ease-out, ease);
}
.auth-card input[type=text]:hover,
.auth-card input[type=password]:hover,
.auth-card input[type=email]:hover {
  border-color: var(--border-strong, var(--border-default));
}
.auth-card input[type=text]:focus,
.auth-card input[type=password]:focus,
.auth-card input[type=email]:focus,
.auth-card input[type=text]:focus-visible,
.auth-card input[type=password]:focus-visible,
.auth-card input[type=email]:focus-visible {
  background-color: var(--bg-input);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.auth-card input[type=text]:-webkit-autofill,
.auth-card input[type=password]:-webkit-autofill,
.auth-card input[type=email]:-webkit-autofill,
.auth-card input[type=text]:-webkit-autofill:hover,
.auth-card input[type=password]:-webkit-autofill:hover,
.auth-card input[type=email]:-webkit-autofill:hover,
.auth-card input[type=text]:-webkit-autofill:focus,
.auth-card input[type=password]:-webkit-autofill:focus,
.auth-card input[type=email]:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--text-primary);
  caret-color: var(--text-primary);
  border-color: var(--border-default);
  box-shadow: 0 0 0 1000px var(--bg-input) inset;
  transition: background-color 99999s ease-out;
}
.auth-card input[type=text]:-webkit-autofill:focus,
.auth-card input[type=password]:-webkit-autofill:focus,
.auth-card input[type=email]:-webkit-autofill:focus {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1000px var(--bg-input) inset,
    0 0 0 1px var(--accent);
}

/* Same unsaturated blue as Desk primary actions. Auth pages do not load desk.css. */
body.auth-page {
  --oc-action: #7fa6d6;
  --oc-action-hover: #9bbbe2;
}
html[data-theme="light"] body.auth-page,
body.auth-page[data-theme="light"] {
  --oc-action: #2f5f9e;
  --oc-action-hover: #244b7f;
}
.auth-card button[type=submit] {
  margin-top: var(--sp-2);
  border: 1px solid var(--oc-action);
  background: var(--oc-action);
  color: var(--text-inverse);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 12px 16px;
  border-radius: 9999px;
  cursor: pointer;
  transition: background var(--tr-fast);
}
.auth-card button[type=submit]:hover { background: var(--oc-action-hover); border-color: var(--oc-action-hover); }
body.auth-page .btn-primary,
body.auth-page a.btn-primary,
body.auth-page a.btn-primary:visited {
  border-color: var(--oc-action);
  background: var(--oc-action);
  color: var(--text-inverse);
  text-decoration: none;
}
body.auth-page .btn-primary:hover,
body.auth-page .btn-primary:focus,
body.auth-page a.btn-primary:hover,
body.auth-page a.btn-primary:focus {
  border-color: var(--oc-action-hover);
  background: var(--oc-action-hover);
  color: var(--text-inverse);
}

.auth-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0 12px;
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.auth-or::before,
.auth-or::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--border-default);
}
body.auth-page a.btn-google,
body.auth-page a.btn-google:visited {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 11px 16px;
  border-radius: 9999px;
  border: 1px solid var(--border-default);
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}
body.auth-page a.btn-google:hover,
body.auth-page a.btn-google:focus {
  border-color: var(--text-primary);
  color: var(--text-primary);
  text-decoration: none;
}
body.auth-page a.btn-google svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.auth-err {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md);
  font-size: var(--fs-base);
}

/* Friendly info banner — e.g. "signed out due to inactivity". */
.auth-info {
  background: var(--warning-bg);
  border: 1px solid color-mix(in srgb, var(--warning) 45%, var(--border-default));
  color: var(--warning);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md);
  font-size: var(--fs-base);
}

.auth-foot {
  margin-top: var(--sp-5);
  text-align: center;
  font-size: var(--fs-base);
  color: var(--text-muted);
}
.auth-foot a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--tr-fast);
}
.auth-foot a:hover { color: var(--accent-hover); text-decoration: none; }
.auth-foot .dim { color: var(--text-dim); }

.auth-closed { text-align: center; }
.auth-closed code {
  background: var(--bg-code);
  padding: 2px var(--sp-1);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
}

/* ---------- Legacy topbar user chip (kept for non-app pages) ---------- */
.topbar .user-chip {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: var(--sp-3);
  padding: var(--sp-1) var(--sp-3);
  background: var(--bg-elevated-2);
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
}
.topbar .user-chip .uname {
  color: var(--text-primary);
  font-weight: var(--fw-medium);
}
.topbar .user-chip .urole {
  color: var(--text-muted);
  font-size: var(--fs-xs);
}
.topbar .logout-btn {
  margin-left: var(--sp-2);
  background: transparent;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-sm);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color var(--tr-fast), color var(--tr-fast);
}
.topbar .logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  .landing-head { padding: var(--sp-3) var(--sp-4); }
  .landing-main { padding: var(--sp-8) var(--sp-4); }
  .hero h1 { font-size: var(--fs-3xl); }
  .hero .lede { font-size: var(--fs-lg); }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .auth-card { padding: var(--sp-6) var(--sp-5); }
}

/* ==========================================================================
   Phase 2 — mobile: prevent iOS zoom-on-focus (input font-size must be >=16px).
   Scoped to small widths so desktop login/signup stay pixel-identical.
   login.html / signup.html are standalone pages that load only this file.
   ========================================================================== */
@media (max-width: 820px) {
  .auth-card input[type=text],
  .auth-card input[type=password],
  .auth-card input[type=email] {
    font-size: 16px;
  }
}

/* Pathway D Stage D3 — login/signup/landing handoff (tokens only; form density preserved) */
body.auth-page {
  background-color: var(--bg-auth, var(--bg-studio, var(--bg-base)));
}
.auth-card {
  background: var(--bg-auth-card, var(--bg-studio-elevated, var(--bg-elevated)));
  border-color: var(--border-auth, var(--border-soft, var(--border-default)));
  border-radius: var(--r-card, 12px);
  box-shadow: var(--shadow-auth, var(--shadow-studio, var(--shadow-xl)));
}
.auth-card h1 {
  letter-spacing: -0.02em;
  font-size: var(--fs-studio-xl, var(--fs-2xl));
  font-weight: var(--fw-semibold, 600);
}
.auth-card input[type=text],
.auth-card input[type=password],
.auth-card input[type=email] {
  border-radius: var(--r-control, 8px);
  border-color: var(--border-soft-strong, var(--border-default));
  background-color: var(--bg-input, var(--bg-base));
}
.auth-card button[type=submit] {
  border-radius: var(--r-control, 8px);
}
.theme-toggle {
  border-color: var(--border-soft, var(--border-default));
  border-radius: var(--r-control, 8px);
}
.auth-err {
  border-radius: var(--r-panel, 10px);
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border-soft, transparent));
}
.auth-info {
  background: var(--warning-bg, rgba(154, 103, 0, 0.1));
  border: 1px solid color-mix(in srgb, var(--warning) 45%, var(--border-soft, transparent));
  color: var(--warning);
  border-radius: var(--r-panel, 10px);
}
[data-theme="dark"] .auth-info {
  background: var(--warning-bg, rgba(154, 103, 0, 0.1));
  border-color: color-mix(in srgb, var(--warning) 45%, var(--border-soft, transparent));
  color: var(--warning);
}
.auth-closed code {
  border-color: var(--border-soft, var(--border-default));
  border-radius: var(--r-control, 8px);
}
body.landing .landing-head,
body.landing .landing-foot {
  border-color: var(--border-soft, var(--border-default));
}
body.landing .feat {
  border-color: var(--border-soft, var(--border-default));
  border-radius: var(--r-card, 12px);
  background: var(--bg-studio-elevated, var(--bg-elevated));
  box-shadow: var(--shadow-studio, none);
}