/*
 * auth-ui.css — Mdata auth screens (login + signup), bot-ui-grade craft.
 * Consumes tokens.css + components.css. Light/cream theme only.
 * Centered glass card on a soft cream gradient with a faint teal aura and a
 * subtle product "proof" rail (mini stat strip). The card stays clean; the
 * form stays obvious. Mobile-first — card width: min(440px,100%), no overflow.
 *
 * Contract preserved: .auth-card centered, width <= viewport @393px;
 * data-testid="oauth-google"/"oauth-apple"; exactly 3 .plan-chip[data-testid].
 */

/* ── Canvas: cream gradient + faint teal radial aura ─────────────── */
.auth-body {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 40px 18px;
  isolation: isolate;
  background:
    radial-gradient(120% 90% at 12% 0%, var(--accent-50) 0%, transparent 46%),
    radial-gradient(100% 80% at 100% 100%, rgba(14,165,164,0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--cream-light) 0%, var(--cream) 60%);
  overflow-x: clip;
}
/* drifting aura blobs behind everything (calm, no looping pulse) */
.auth-body::before,
.auth-body::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
}
.auth-body::before {
  width: 460px; height: 460px;
  top: -160px; left: -140px;
  background: radial-gradient(circle, var(--accent-tint-strong) 0%, transparent 70%);
  opacity: 0.7;
}
.auth-body::after {
  width: 380px; height: 380px;
  right: -120px; bottom: -120px;
  background: radial-gradient(circle, var(--accent-tint) 0%, transparent 70%);
  opacity: 0.6;
}

/* a thin grain/scan line at the very top edge — product feel */
.auth-shell {
  position: relative;
  width: min(440px, 100%);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── The card ───────────────────────────────────────────────────── */
.auth-card {
  position: relative;
  width: min(440px, 100%);
  padding: 30px 28px 26px;
  background: var(--cream-raised);
  border: 1px solid var(--cream-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}
/* hairline teal accent on the card's top edge */
.auth-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.85;
}

/* ── Brand + plan badge row ─────────────────────────────────────── */
.auth-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
}
.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  transition: opacity var(--motion-fast) var(--ease-spring);
}
.auth-brand:hover { opacity: 0.82; }
/* refined brand mark: ring + glow over the shared .site-brand-mark base */
.auth-brand .site-brand-mark {
  width: 26px; height: 26px;
  box-shadow: var(--inset-accent), var(--glow-soft);
}
.auth-brand .site-brand-text { font-size: 16px; }

/* ── Headline ───────────────────────────────────────────────────── */
.auth-title {
  margin: 0 0 6px;
  font-size: clamp(24px, 6vw, 28px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: var(--tracking-display);
  color: var(--charcoal);
}
/* Instrument Serif accent word inside the headline */
.auth-title .u-serif {
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0;
  color: var(--accent-deep);
}
.auth-sub {
  margin: 0 0 22px;
  font-size: var(--fs-body);
  line-height: var(--leading-snug);
  color: var(--muted);
}

/* ── Plan chips (signup) ────────────────────────────────────────── */
.plan-chip-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  border: 0;
}
.plan-chip {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 10px 12px;
  background: var(--cream-light);
  border: 1px solid var(--cream-border);
  border-radius: var(--radius-lg-plus);
  box-shadow: var(--shadow-xs);
  cursor: pointer;
  transition:
    transform var(--motion-fast) var(--ease-spring),
    border-color var(--motion-fast) var(--ease-spring),
    background var(--motion-fast) var(--ease-spring),
    box-shadow var(--motion-fast) var(--ease-spring);
}
.plan-chip:hover { transform: translateY(-1px); border-color: var(--charcoal-08); box-shadow: var(--shadow-sm); }
.plan-chip input[type="radio"] {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
/* selected state via :has — teal ring + tint + check dot */
.plan-chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-tint);
  box-shadow: var(--glow-accent);
}
.plan-chip:has(input:checked) .plan-chip-name { color: var(--accent-deep); }
.plan-chip::after {
  content: "";
  position: absolute;
  top: 8px; right: 8px;
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 1.5px solid var(--cream-border);
  background: var(--cream-light);
  transition: all var(--motion-fast) var(--ease-spring);
}
.plan-chip:has(input:checked)::after {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 2.5px var(--cream-raised);
}
/* keyboard focus on the hidden radio lights the whole chip */
.plan-chip:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.plan-chip-name {
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.1px;
}
.plan-chip-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.35;
  color: var(--muted);
  letter-spacing: 0.01em;
}

/* ── OAuth buttons ──────────────────────────────────────────────── */
.auth-oauth-row { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.oauth-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  border: 1px solid var(--cream-border);
  background: var(--cream-light);
  color: var(--charcoal);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--motion-fast) var(--ease-spring),
    box-shadow var(--motion-fast) var(--ease-spring),
    background var(--motion-fast) var(--ease-spring),
    border-color var(--motion-fast) var(--ease-spring);
  will-change: transform;
}
.oauth-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); border-color: var(--charcoal-08); }
.oauth-btn:active { transform: translateY(0) scale(0.99); transition-duration: 90ms; }
.oauth-btn[data-loading="true"] { opacity: 0.62; cursor: progress; transform: none; }
.oauth-btn[disabled] { cursor: progress; }
.oauth-glyph { width: 18px; height: 18px; flex: 0 0 auto; }

/* Google = cream / bordered */
.oauth-google { background: var(--cream-raised); }

/* Apple = dark */
.oauth-apple {
  background: var(--charcoal);
  color: #fff;
  border-color: var(--charcoal);
  box-shadow: var(--shadow-md);
}
.oauth-apple:hover { background: #000; border-color: #000; }
.oauth-apple .oauth-glyph { fill: #fff; }

/* ── Fine print + switch link ───────────────────────────────────── */
.auth-fineprint {
  margin: 0 0 14px;
  font-size: var(--fs-caption);
  line-height: var(--leading-snug);
  color: var(--muted);
  text-align: center;
}
.auth-fineprint a { color: var(--charcoal-83); text-decoration: underline; text-underline-offset: 2px; }
.auth-fineprint a:hover { color: var(--charcoal); }
.auth-switch {
  margin: 0;
  font-size: var(--fs-body-sm);
  color: var(--muted);
  text-align: center;
}
.auth-switch a {
  color: var(--accent-dark);
  font-weight: 600;
  text-underline-offset: 2px;
}
.auth-switch a:hover { color: var(--accent-deep); text-decoration: underline; }

/* ── Error host (injected by auth-ui.js) ────────────────────────── */
.auth-error {
  margin: 14px 0 0;
  padding: 11px 13px;
  border-radius: var(--radius-md-plus);
  background: var(--red-tint);
  color: var(--red-deep);
  font-size: var(--fs-body-sm);
  border: 1px solid rgba(220, 38, 38, 0.22);
}

/* ── Proof rail: a small product stat strip under the card ──────── */
.auth-proof {
  display: flex;
  align-items: stretch;
  gap: 1px;
  padding: 4px;
  border-radius: var(--radius-xl);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}
.auth-proof-item {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 10px 6px;
  text-align: center;
}
.auth-proof-item + .auth-proof-item { border-left: 1px solid var(--cream-border); }
.auth-proof-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  line-height: 1;
  color: var(--accent-deep);
  font-variant-numeric: tabular-nums;
}
.auth-proof-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--muted);
}

/* ── Mobile: single column, tighter card, chips stay 3-up ───────── */
@media (max-width: 420px) {
  .auth-body { padding: 26px 14px; }
  .auth-card { padding: 26px 20px 22px; border-radius: var(--radius-xl); }
  .plan-chip { padding: 12px 8px 11px; }
  .plan-chip-meta { font-size: 9px; }
  .auth-proof-num { font-size: 19px; }
}