/* Страницы входа / регистрации — в стиле калькулятора */

.auth-page {
  min-height: 100vh;
  min-height: 100dvh;
  min-height: -webkit-fill-available;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-x: hidden;
  padding:
    max(12px, env(safe-area-inset-top, 0px))
    max(12px, env(safe-area-inset-right, 0px))
    max(16px, env(safe-area-inset-bottom, 0px))
    max(12px, env(safe-area-inset-left, 0px));
  box-sizing: border-box;
}

.auth-page .container {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  padding: 0 14px 8px;
  box-sizing: border-box;
}

.auth-shell {
  --au-rgb: 143, 156, 255;
  --au: #8f9cff;
  --au2: #6f7ef2;
  --au-glow: rgba(124, 140, 255, 0.2);
  --au-text: #eaf0ff;
  --au-text-muted: #9bb0d8;
  --au-bg-card: #151b27;
  --au-glass-bg: rgba(255, 255, 255, 0.04);
  --au-glass-border: rgba(255, 255, 255, 0.09);
  width: 100%;
  max-width: 100%;
  animation: authFadeIn 0.24s ease;
}

html[data-theme="dawn"] .auth-shell {
  --au-rgb: 20, 184, 166;
  --au: #14b8a6;
  --au2: #0d9488;
  --au-glow: rgba(13, 148, 136, 0.22);
  --au-text: #3c362f;
  --au-text-muted: #6b6258;
  --au-bg-card: #fffefb;
  --au-glass-bg: rgba(0, 0, 0, 0.03);
  --au-glass-border: rgba(0, 0, 0, 0.075);
}

@keyframes authFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.auth-header-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--au) 0%, var(--au2) 100%);
  box-shadow: 0 8px 20px var(--au-glow);
}

.auth-header-icon svg {
  width: 26px;
  height: 26px;
  stroke: #fff;
}

.auth-title {
  margin: 0 0 2px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--au), var(--au2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-subtitle {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--au-text-muted);
}

.auth-glass-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 20px 18px 18px;
  border-radius: 16px;
  border: 1px solid var(--au-glass-border);
  background: var(--au-glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.auth-glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--au), var(--au2));
  border-radius: 16px 16px 0 0;
}

.auth-alert {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, #ff6b6b 45%, var(--au-glass-border));
  background: color-mix(in srgb, #ff6b6b 12%, var(--au-glass-bg));
  color: #ffb4b4;
  font-size: 14px;
  line-height: 1.4;
}

html[data-theme="dawn"] .auth-alert {
  color: #b42318;
  background: color-mix(in srgb, #fecaca 55%, #fff);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.auth-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--au-text-muted);
}

.auth-input {
  width: 100%;
  max-width: 100%;
  min-height: 44px;
  box-sizing: border-box;
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1.5px solid var(--bio-input-border, #c9d1e0);
  background: var(--bio-input-bg, #fff);
  color: var(--bio-input-fg, var(--au-text));
  font-size: 16px;
  font-weight: 500;
  line-height: 1.25;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.auth-input:focus {
  outline: none;
  border-color: rgba(var(--au-rgb), 0.55);
  box-shadow: 0 0 0 3px var(--au-glow);
}

.auth-remember {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
  font-size: 14px;
  color: var(--au-text-muted);
  cursor: pointer;
  user-select: none;
}

.auth-remember input {
  width: 18px;
  height: 18px;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--au);
}

.auth-submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 46px;
  margin-top: 4px;
  padding: 0 18px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--au) 0%, var(--au2) 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 22px var(--au-glow);
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.auth-submit-btn:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--au-glow);
}

.auth-submit-btn:active {
  transform: translateY(0);
}

.auth-footer {
  margin: 16px 0 0;
  text-align: center;
  font-size: 14px;
  line-height: 1.45;
  color: var(--au-text-muted);
}

.auth-footer a {
  color: var(--au);
  font-weight: 600;
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

.auth-theme-row {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

.auth-theme-row .nav-theme-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--au-glass-border);
  background: var(--au-glass-bg);
}

@media (max-width: 480px) {
  .auth-page .container {
    padding: 0 12px 6px;
  }

  .auth-header {
    gap: 12px;
    margin-bottom: 14px;
  }

  .auth-header-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .auth-title {
    font-size: 20px;
  }

  .auth-glass-card {
    padding: 16px 14px 14px;
    border-radius: 14px;
  }
}

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

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