.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3vw, 3rem);
}

.auth {
  width: min(1060px, 100%);
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid #fff;
}

/* ---------- left: form ---------- */
.auth__form {
  padding: clamp(1.6rem, 3vw, 3.4rem) clamp(1.6rem, 3vw, 3.2rem);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth__emblem { width: 92px; height: 92px; margin-bottom: var(--space-2); }

.auth__title {
  margin: 0 0 var(--space-4);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ink);
}

.form { width: min(360px, 100%); display: flex; flex-direction: column; gap: var(--space-3); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: var(--text-sm); font-weight: 600; color: var(--ink-soft); }

.input-wrap { position: relative; display: flex; align-items: center; }
.input-wrap input {
  width: 100%;
  padding: 0.78rem 2.6rem 0.78rem 0.95rem;
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line-cool);
  border-radius: 10px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.input-wrap input:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--pink);
  outline: none;
}
.input-wrap .adorn {
  position: absolute;
  right: 0.7rem;
  display: grid; place-items: center;
  width: 1.5rem; height: 1.5rem;
  color: var(--muted);
  background: none; border: 0; padding: 0;
}

.form__row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: var(--text-sm);
}
.remember { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--ink-soft); cursor: pointer; }
.remember input { width: 1.05rem; height: 1.05rem; accent-color: var(--red); }
.forgot { color: var(--red-bright); font-weight: 700; }

.btn-primary {
  margin-top: var(--space-1);
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(180deg, var(--red) 0%, var(--oxblood) 100%);
  box-shadow: 0 6px 16px rgba(124, 10, 34, 0.28);
  transition: transform var(--dur-fast), box-shadow var(--dur-fast), filter var(--dur-fast);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(124, 10, 34, 0.34); filter: brightness(1.04); }
.btn-primary:active { transform: translateY(0); }

.register-line { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--ink-soft); text-align: center; }
.register-line a { font-weight: 700; }

/* ---------- right: banner ---------- */
.auth__banner {
  position: relative;
  margin: 14px 14px 14px 0;
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 70% 20%, #3a0c16 0%, #1a0a0d 55%, #0b0708 100%);
  display: grid;
  place-items: center;
  min-height: 420px;
  isolation: isolate;
}
.auth__banner::before {
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(115deg, transparent 0 38px, rgba(200,16,46,0.05) 38px 40px),
    radial-gradient(60% 40% at 30% 90%, rgba(38,166,154,0.22), transparent 60%),
    radial-gradient(50% 40% at 75% 80%, rgba(200,16,46,0.30), transparent 65%);
  z-index: -1;
}
.banner__watermark {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: clamp(4rem, 11vw, 9rem);
  font-weight: 800;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.04);
  white-space: nowrap;
  z-index: -1;
}
.banner__frame {
  position: relative;
  width: 84%;
  padding: clamp(2rem, 5vw, 3.4rem) 1.4rem;
  text-align: center;
  border: 2px solid rgba(200,16,46,0.55);
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(0,0,0,0.15), rgba(0,0,0,0.35));
  clip-path: polygon(0 14px, 14px 0, calc(100% - 14px) 0, 100% 14px, 100% calc(100% - 14px), calc(100% - 14px) 100%, 14px 100%, 0 calc(100% - 14px));
}
.banner__corner { position: absolute; width: 64px; height: 8px; background: #f4f1ea; }
.banner__corner.tl { top: 16px; left: 16px; }
.banner__corner.br { bottom: 16px; right: 16px; }
.banner__title {
  margin: 0;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  font-weight: 800;
  color: #fff;
  text-shadow: 0 2px 18px rgba(200,16,46,0.6), 0 1px 2px rgba(0,0,0,0.5);
}
.banner__ribbon {
  display: inline-block;
  margin-top: var(--space-3);
  padding: 0.5rem 2.4rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(180deg, var(--red-bright), var(--oxblood));
  clip-path: polygon(8% 0, 92% 0, 100% 50%, 92% 100%, 8% 100%, 0 50%);
  box-shadow: 0 8px 20px rgba(200,16,46,0.4);
}

@media (max-width: 800px) {
  .auth { grid-template-columns: 1fr; }
  .auth__banner { order: -1; margin: 14px; min-height: 200px; }
}