/* ─────────────────────────────────────────────────────────────────────
   Auth pages — shared layout (login + accept invitation)
   Background: webp-first via image-set on ::before; optional .auth-bg picture
   ───────────────────────────────────────────────────────────────────── */

body.auth-page {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
}

/* Fixed photo layer — jpg fallback, webp preferred where supported */
body.auth-page::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url('../assets/login-bg.jpg');
  background-image: image-set(
    url('../assets/login-bg.webp') type('image/webp'),
    url('../assets/login-bg.jpg') type('image/jpeg')
  );
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  filter: brightness(0.32) saturate(0.8);
  z-index: 0;
}

body.auth-page::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 900px 600px at 18% 8%, color-mix(in oklab, var(--accent) 36%, transparent), transparent 60%),
    radial-gradient(ellipse 700px 500px at 82% 92%, color-mix(in oklab, var(--primary) 22%, transparent), transparent 60%),
    linear-gradient(175deg, color-mix(in oklab, var(--bg) 78%, transparent) 0%, color-mix(in oklab, var(--bg) 64%, transparent) 100%);
}

/* Optional picture element overlay (webp + jpg source) */
.auth-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  margin: 0;
  pointer-events: none;
}
.auth-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.32) saturate(0.8);
}

/* ── Shared auth card ─────────────────────────────────────────────── */
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  background: color-mix(in oklab, var(--surface) 88%, transparent);
  border: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-3);
  animation: auth-card-in 0.45s ease both;
}

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

@media (prefers-reduced-motion: reduce) {
  .auth-card { animation: none; }
}

.auth-card .brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.auth-card .brand-row img { height: 40px; width: auto; }
.auth-card .brand-row .t { font-weight: 800; font-size: 16px; letter-spacing: -.01em; }
.auth-card .brand-row .s { font-size: 12px; color: var(--text-muted); }

.auth-card h1 {
  font-size: 22px;
  letter-spacing: -.02em;
  margin: 0 0 6px;
  font-weight: 800;
}
.auth-card .sub {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 24px;
}

.auth-card form { display: grid; gap: 14px; }
.auth-card.login {
  display: grid;
  gap: 14px;
}
.auth-card label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.auth-card input {
  width: 100%;
  padding: 11px 13px;
  box-sizing: border-box;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.auth-card input:hover {
  border-color: color-mix(in oklab, var(--primary) 40%, var(--line));
}
.auth-card input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.auth-card button[type=submit] {
  margin-top: 6px;
  width: 100%;
  padding: 12px;
  border: 0;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--pill-fg);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.2s ease;
}
.auth-card button[type=submit]:hover:not(:disabled) { background: var(--primary-2); }
.auth-card button[type=submit]:disabled { opacity: 0.6; cursor: not-allowed; }

.auth-card .req { color: var(--err); }

/* ── Login page ───────────────────────────────────────────────────── */
.login { max-width: 420px; }
#login-error {
  color: var(--err);
  font-size: 13px;
  min-height: 18px;
}

/* ── Accept invitation page ───────────────────────────────────────── */
.accept-card { max-width: 400px; }

.msg {
  font-size: 13px;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 4px;
}
.msg.err {
  background: color-mix(in oklab, var(--err) 14%, var(--surface-2));
  color: var(--err);
  border: 1px solid color-mix(in oklab, var(--err) 28%, var(--line));
}
.msg.ok {
  background: color-mix(in oklab, var(--ok) 14%, var(--surface-2));
  color: var(--ok);
  border: 1px solid color-mix(in oklab, var(--ok) 28%, var(--line));
}
.msg.info {
  background: color-mix(in oklab, var(--info) 14%, var(--surface-2));
  color: var(--info);
  border: 1px solid color-mix(in oklab, var(--info) 28%, var(--line));
}

.pw-bar {
  height: 4px;
  border-radius: 2px;
  margin-top: 4px;
  width: 0;
  background: var(--line);
  transition: width .25s, background .25s;
}

#form-error {
  font-size: 13px;
  color: var(--err);
  min-height: 18px;
}

.signin-link {
  margin-top: 18px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.signin-link a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.signin-link a:hover { text-decoration: underline; }

/* ── Login layout (wide-screen promo + card) ─────────────────────────── */
.auth-layout {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  display: grid;
  gap: 24px;
  align-items: center;
}

.auth-panel {
  display: grid;
  gap: 14px;
  width: 100%;
}

.auth-aside {
  display: none;
}

.auth-aside-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 10px;
}

.auth-aside-title {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  line-height: 1.15;
}

.auth-aside-lead {
  font-size: 15px;
  line-height: 1.65;
  color: color-mix(in oklab, var(--text) 82%, transparent);
  margin: 0 0 20px;
  max-width: 36ch;
}

.auth-aside-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.auth-aside-list li {
  font-size: 14px;
  color: color-mix(in oklab, var(--text) 78%, transparent);
  padding-left: 18px;
  position: relative;
}

.auth-aside-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.auth-aside-link,
.auth-back-link a {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.auth-aside-link:hover,
.auth-back-link a:hover {
  text-decoration: underline;
}

.auth-back-link {
  margin: 0;
  text-align: center;
  font-size: 13px;
}

@media (min-width: 900px) {
  body.auth-page {
    padding: 40px;
  }

  .auth-layout {
    grid-template-columns: 1fr 420px;
    gap: 48px;
    max-width: 1080px;
  }

  .auth-aside {
    display: block;
    padding: 8px 0;
  }

  .auth-back-link {
    display: none;
  }
}

@media (max-width: 360px) {
  .auth-card { padding: 28px 20px; }
}