:root {
  --br-auth-shell-radius: 28px;
  --br-auth-panel-radius: 24px;
  --br-auth-border: rgba(15, 23, 42, 0.08);
  --br-auth-ring: rgba(27, 60, 87, 0.12);
  --br-auth-shadow: 0 24px 60px rgba(15, 23, 42, 0.16);
  --br-auth-panel-shadow: 0 16px 40px rgba(15, 23, 42, 0.10);
}

/* Page shell */
.br-auth-page {
  max-width: 1360px;
  margin: 32px auto 56px;
  padding: 0 16px;
}

.br-auth-page--compact {
  max-width: 760px;
}

.br-auth-shell {
  display: grid;
  grid-template-columns: minmax(360px, 1.05fr) minmax(420px, 0.95fr);
  min-height: clamp(720px, 82vh, 920px);
  background: #fff;
  border: 1px solid var(--br-auth-border);
  border-radius: var(--br-auth-shell-radius);
  overflow: hidden;
  box-shadow: var(--br-auth-shadow);
  isolation: isolate;
}

.br-auth-shell--single {
  grid-template-columns: 1fr;
  min-height: auto;
}

/* Left visual panel */
.br-auth-visual {
  position: relative;
  display: flex;
  align-items: stretch;
  min-height: 100%;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(11, 44, 71, 0.80), rgba(27, 60, 87, 0.72)),
    var(--br-auth-image, none),
    radial-gradient(circle at 20% 20%, rgba(106, 163, 210, 0.32), transparent 32%),
    radial-gradient(circle at 78% 24%, rgba(255, 255, 255, 0.10), transparent 24%),
    linear-gradient(135deg, #0b2438 0%, #1b3c57 48%, #2b5277 100%);
  background-size: cover, cover, auto, auto, auto;
  background-position: center center;
  background-repeat: no-repeat;
}

.br-auth-visual::before,
.br-auth-visual::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.6;
}

.br-auth-visual::before {
  inline-size: 220px;
  block-size: 220px;
  inset-block-start: 8%;
  inset-inline-end: -60px;
  background: rgba(106, 163, 210, 0.22);
  animation: brAuthFloat 9s ease-in-out infinite;
}

.br-auth-visual::after {
  inline-size: 180px;
  block-size: 180px;
  inset-block-end: 12%;
  inset-inline-start: -40px;
  background: rgba(255, 255, 255, 0.12);
  animation: brAuthFloat 11s ease-in-out infinite reverse;
}

.br-auth-visual-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(32px, 4vw, 56px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 18px;
}

.br-auth-eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.br-auth-hero-title {
  margin: 0;
  max-width: 640px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
}

.br-auth-hero-text {
  margin: 0;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
}

.br-auth-proof-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: grid;
  gap: 10px;
}

.br-auth-proof-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.96);
  font-size: 14px;
  line-height: 1.45;
  backdrop-filter: blur(10px);
}

.br-auth-proof-list li::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 22px;
  block-size: 22px;
  flex: 0 0 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-weight: 700;
}

.br-auth-stat-stack {
  position: absolute;
  inset-inline-end: clamp(20px, 3vw, 32px);
  inset-block-end: clamp(20px, 3vw, 32px);
  display: grid;
  gap: 12px;
  width: min(240px, 42%);
}

.br-auth-stat-card {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 10px 30px rgba(11, 44, 71, 0.16);
  backdrop-filter: blur(14px);
}

.br-auth-stat-card--top {
  transform: translateX(-18px);
}

.br-auth-stat-label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  line-height: 1.3;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.br-auth-stat-value {
  display: block;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 600;
  color: #fff;
}

/* Right panel */
.br-auth-panel-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(28px, 3vw, 44px);
  background:
    radial-gradient(circle at 88% 8%, rgba(106, 163, 210, 0.10), transparent 20%),
    radial-gradient(circle at 8% 92%, rgba(27, 60, 87, 0.05), transparent 26%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.br-auth-panel {
  width: 100%;
  max-width: 480px;
  padding: clamp(28px, 3vw, 42px);
  border-radius: var(--br-auth-panel-radius);
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: var(--br-auth-panel-shadow);
  backdrop-filter: blur(10px);
}

.br-auth-brand {
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--br-primary, #1B3C57);
}

.br-auth-title {
  margin: 0;
  font-size: clamp(30px, 3vw, 40px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--br-on-surface, #1C1B1F);
}

.br-auth-subtitle {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--br-on-surface-variant, #6B7280);
}

.br-auth-alert {
  margin-top: 22px;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 600;
}

.br-auth-alert--error {
  background: #fff4f4;
  color: #b42318;
  border: 1px solid #fecaca;
}

/* Form */
.br-auth-form {
  margin-top: 24px;
}

.br-auth-field {
  display: block;
  margin-bottom: 18px;
}

.br-auth-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--br-on-surface, #1C1B1F);
}

.br-auth-field input[type="email"],
.br-auth-field input[type="password"],
.br-auth-field input[type="text"] {
  width: 100%;
  min-height: 54px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: #fff;
  font-size: 15px;
  line-height: 1.4;
  color: var(--br-on-surface, #1C1B1F);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.br-auth-field input::placeholder {
  color: #94a3b8;
}

.br-auth-field input:focus {
  outline: none;
  border-color: var(--br-primary, #1B3C57);
  box-shadow: 0 0 0 4px var(--br-auth-ring);
  background: #fff;
}

.br-auth-password-wrap {
  position: relative;
  display: block;
}

.br-auth-password-wrap input {
  padding-inline-end: 88px;
}

.br-auth-password-toggle {
  position: absolute;
  inset-inline-end: 12px;
  inset-block-start: 50%;
  transform: translateY(-50%);
  min-height: 34px;
  padding: 6px 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--br-primary, #1B3C57);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.br-auth-password-toggle:hover,
.br-auth-password-toggle:focus-visible {
  outline: none;
  background: rgba(27, 60, 87, 0.08);
}

.br-auth-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 6px 0 22px;
}

.br-auth-remember {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--br-on-surface-variant, #6B7280);
}

.br-auth-remember input[type="checkbox"] {
  inline-size: 16px;
  block-size: 16px;
  margin: 0;
  accent-color: var(--br-primary, #1B3C57);
}

.br-auth-inline-link,
.br-auth-footer a {
  color: var(--br-primary, #1B3C57);
  text-decoration: none;
  font-weight: 600;
}

.br-auth-inline-link:hover,
.br-auth-inline-link:focus-visible,
.br-auth-footer a:hover,
.br-auth-footer a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.br-auth-submit {
  width: 100%;
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border: 0;
  border-radius: 16px;
  cursor: pointer;
  text-decoration: none;
  background: linear-gradient(135deg, var(--br-primary, #1B3C57), var(--br-primary-light, #2B5277));
  color: #fff;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 14px 30px rgba(27, 60, 87, 0.24);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.br-auth-submit:hover,
.br-auth-submit:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(27, 60, 87, 0.28);
  outline: none;
}

.br-auth-submit:disabled,
.br-auth-submit.is-loading {
  opacity: 0.82;
  cursor: wait;
}

.br-auth-submit--link {
  text-align: center;
}

.br-auth-footer {
  margin-top: 18px;
  text-align: center;
}

.br-auth-secondary,
.br-auth-support,
.br-auth-note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.6;
}

.br-auth-secondary,
.br-auth-support {
  color: var(--br-on-surface-variant, #6B7280);
}

.br-auth-note {
  font-size: 13px;
  color: #94a3b8;
}

.br-auth-actions-stack {
  margin-top: 22px;
}

/* Motion */
@keyframes brAuthFloat {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -12px, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .br-auth-visual::before,
  .br-auth-visual::after {
    animation: none;
  }

  .br-auth-submit {
    transition: none;
  }
}

/* RTL */
[dir="rtl"] .br-auth-panel,
[dir="rtl"] .br-auth-visual,
[dir="rtl"] .br-auth-footer {
  text-align: right;
}

[dir="rtl"] .br-auth-proof-list li {
  text-align: right;
}

[dir="rtl"] .br-auth-remember {
  flex-direction: row-reverse;
}

[dir="rtl"] .br-auth-stat-card--top {
  transform: translateX(18px);
}

/* Responsive */
@media (max-width: 1120px) {
  .br-auth-shell {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .br-auth-visual {
    min-height: 360px;
  }

  .br-auth-stat-stack {
    width: min(280px, 58%);
  }
}

@media (max-width: 768px) {
  .br-auth-page {
    margin: 20px auto 40px;
    padding: 0 12px;
  }

  .br-auth-shell {
    border-radius: 22px;
  }

  .br-auth-visual {
    min-height: 300px;
  }

  .br-auth-visual-inner,
  .br-auth-panel-wrap {
    padding: 22px;
  }

  .br-auth-panel {
    padding: 24px 20px;
    border-radius: 20px;
  }

  .br-auth-hero-title {
    font-size: clamp(28px, 9vw, 40px);
  }

  .br-auth-hero-text {
    font-size: 14px;
  }

  .br-auth-proof-list li {
    min-height: auto;
  }

  .br-auth-stat-stack {
    position: static;
    width: 100%;
    margin-top: 8px;
    grid-template-columns: 1fr 1fr;
  }

  .br-auth-stat-card--top {
    transform: none;
  }

  .br-auth-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .br-auth-inline-link {
    display: inline-block;
  }
}

@media (max-width: 560px) {
  .br-auth-visual {
    min-height: 260px;
  }

  .br-auth-stat-stack {
    grid-template-columns: 1fr;
  }

  .br-auth-field input[type="email"],
  .br-auth-field input[type="password"],
  .br-auth-field input[type="text"] {
    min-height: 52px;
  }

  .br-auth-submit {
    min-height: 54px;
  }
}