:root {
  --bg: #050506;
  --panel: rgba(32, 9, 8, 0.68);
  --panel-strong: rgba(24, 8, 8, 0.88);
  --text: #fff8f5;
  --muted: #b8a4a0;
  --faint: #75625f;
  --line: rgba(255, 255, 255, 0.13);
  --line-bright: rgba(255, 168, 138, 0.48);
  --accent: #ff5000;
  --accent-soft: rgba(255, 80, 0, 0.18);
  --error: #ff6a5f;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  color-scheme: dark;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 80, 0, 0.13), transparent 32%),
    linear-gradient(145deg, #040405 0%, #090607 46%, #090405 100%);
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(110deg, rgba(0, 0, 0, 0.54), transparent 45%, rgba(255, 80, 0, 0.035));
}

.side-rays-container {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.66;
  mix-blend-mode: screen;
}

.side-rays-container canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.background-grid {
  position: fixed;
  inset: 0;
  z-index: -4;
  opacity: 0.7;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 128px 128px;
  mask-image: linear-gradient(to bottom, transparent 0%, #000 28%, #000 80%, transparent 100%);
}

.login-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  padding: 18px clamp(22px, 4vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 5, 7, 0.5);
  backdrop-filter: blur(22px) saturate(120%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(255, 80, 0, 0.26);
}

.brand span {
  display: grid;
  gap: 4px;
}

.brand strong {
  overflow: hidden;
  font-size: 19px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand small {
  color: #8f8584;
  font-size: 11px;
}

.security-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  color: #998f8d;
  font-size: 12px;
}

.security-label i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(255, 80, 0, 0.9);
}

.login-stage {
  display: grid;
  min-height: 100vh;
  padding: 132px 20px 80px;
  place-items: center;
}

.credential-card {
  position: relative;
  width: min(448px, calc(100vw - 32px));
  padding: 42px 42px 24px;
  border: 1px solid rgba(255, 162, 132, 0.34);
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(255, 92, 45, 0.11), transparent 36%),
    linear-gradient(180deg, rgba(70, 12, 10, 0.72), rgba(28, 7, 8, 0.86));
  backdrop-filter: blur(28px) saturate(125%);
  box-shadow:
    0 36px 110px rgba(0, 0, 0, 0.65),
    0 0 74px rgba(255, 80, 0, 0.12),
    inset 0 1px 0 rgba(255, 220, 210, 0.18);
  isolation: isolate;
  overflow: hidden;
}

.credential-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background:
    radial-gradient(circle at 94% 3%, rgba(255, 133, 88, 0.31), transparent 36%),
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.025), transparent);
  pointer-events: none;
}

.credential-card::after {
  content: "";
  position: absolute;
  top: -76px;
  right: -70px;
  z-index: -1;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: rgba(255, 80, 0, 0.2);
  filter: blur(48px);
  pointer-events: none;
}

.card-heading {
  text-align: center;
}

.identity-mark {
  display: grid;
  width: 58px;
  height: 58px;
  margin: 0 auto 15px;
  border: 1px solid rgba(255, 146, 110, 0.34);
  border-radius: 15px;
  background: linear-gradient(145deg, rgba(255, 80, 0, 0.7), rgba(108, 13, 8, 0.6));
  box-shadow: 0 12px 30px rgba(255, 80, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  place-items: center;
}

.identity-mark img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.card-heading p,
.card-heading h1,
.card-heading span {
  margin: 0;
}

.card-heading p {
  color: rgba(255, 128, 88, 0.78);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.card-heading h1 {
  margin-top: 8px;
  font-size: 32px;
  font-weight: 950;
  letter-spacing: 0;
}

.card-heading span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

#loginForm {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.field {
  display: grid;
  gap: 9px;
}

.field label {
  color: #d5c5c1;
  font-size: 13px;
  font-weight: 750;
}

.input-shell {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) auto;
  align-items: center;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid rgba(255, 178, 150, 0.22);
  border-radius: 12px;
  background: rgba(8, 4, 5, 0.48);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.input-shell:focus-within {
  border-color: var(--accent);
  background: rgba(32, 8, 7, 0.7);
  box-shadow: 0 0 0 3px rgba(255, 80, 0, 0.12), 0 0 28px rgba(255, 80, 0, 0.08);
}

.field.invalid .input-shell {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(255, 90, 78, 0.1);
}

.input-shell input {
  width: 100%;
  min-width: 0;
  height: 50px;
  padding: 0 10px;
  border: 0;
  outline: 0;
  background: transparent;
  color: #fff;
  font: inherit;
}

.input-shell input::placeholder {
  color: #735f5b;
}

.field-icon {
  display: grid;
  width: 22px;
  height: 22px;
  color: #9d7770;
  place-items: center;
  transition: color 0.2s ease, filter 0.2s ease;
}

.field-icon svg {
  display: block;
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.85;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.input-shell:focus-within .field-icon {
  color: #ff8a55;
  filter: drop-shadow(0 0 10px rgba(255, 80, 0, 0.34));
}

.password-toggle {
  display: grid;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  place-items: center;
}

.password-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
}

.password-toggle span {
  position: relative;
  width: 18px;
  height: 12px;
  border: 1.5px solid #9d7770;
  border-radius: 50% / 60%;
}

.password-toggle span::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #9d7770;
  transform: translate(-50%, -50%);
}

.password-toggle[aria-pressed="true"] span::after {
  content: "";
  position: absolute;
  top: 5px;
  left: -2px;
  width: 22px;
  height: 1.5px;
  border-radius: 999px;
  background: #9d7770;
  transform: rotate(-42deg);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: -3px;
  color: #887673;
  font-size: 12px;
}

.remember-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #b9a9a5;
  cursor: pointer;
}

.remember-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.remember-option > span {
  position: relative;
  width: 17px;
  height: 17px;
  border: 1px solid rgba(255, 181, 155, 0.28);
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.25);
}

.remember-option input:checked + span {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 12px rgba(255, 80, 0, 0.24);
}

.remember-option input:checked + span::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 5px;
  width: 4px;
  height: 7px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.login-error {
  min-height: 18px;
  margin: -8px 0 -4px;
  color: var(--error);
  font-size: 12px;
  line-height: 1.5;
}

.captcha-block {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(255, 178, 150, 0.2);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 80, 0, 0.12), rgba(10, 5, 6, 0.46));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 14px 34px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(16px);
}

.captcha-block[hidden] {
  display: none;
}

.captcha-heading,
.captcha-row,
.auth-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.captcha-heading {
  justify-content: space-between;
}

.captcha-heading label {
  color: #f1d7cf;
  font-size: 13px;
  font-weight: 800;
}

.captcha-refresh,
.register-button {
  border: 1px solid rgba(255, 178, 150, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: #ffb08f;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.18s ease;
}

.captcha-refresh {
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
}

.captcha-refresh:hover,
.register-button:hover {
  border-color: rgba(255, 80, 0, 0.64);
  background: rgba(255, 80, 0, 0.1);
}

.captcha-question {
  flex: 0 0 auto;
  min-width: 118px;
  padding: 13px 14px;
  border-radius: 11px;
  background: rgba(255, 80, 0, 0.12);
  color: #fff;
  font-size: 15px;
  font-weight: 900;
  text-align: center;
  letter-spacing: 0.02em;
}

.captcha-row input {
  min-width: 0;
  width: 100%;
  height: 45px;
  border: 1px solid rgba(255, 178, 150, 0.22);
  border-radius: 11px;
  outline: 0;
  background: rgba(8, 4, 5, 0.5);
  color: #fff;
  font: inherit;
  padding: 0 12px;
}

.captcha-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 80, 0, 0.12);
}

.captcha-block p {
  margin: 0;
  color: #927b76;
  font-size: 12px;
  line-height: 1.5;
}

.auth-actions {
  align-items: stretch;
}

.login-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  border: 1px solid rgba(255, 181, 155, 0.26);
  border-radius: 12px;
  background: linear-gradient(180deg, #ff742e 0%, var(--accent) 58%, #e84600 100%);
  color: white;
  font: inherit;
  font-weight: 900;
  box-shadow: 0 16px 34px rgba(255, 80, 0, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.auth-actions .login-button {
  flex: 1 1 auto;
}

.register-button {
  flex: 0 0 104px;
  min-height: 52px;
  border-radius: 12px;
}

.register-button:active {
  transform: translateY(1px);
}

.login-button:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(255, 80, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.login-button:active {
  transform: translateY(0);
}

.login-button:disabled {
  cursor: wait;
  filter: saturate(0.65);
  transform: none;
}

.login-button i {
  width: 7px;
  height: 7px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: rotate(45deg);
}

.login-button.loading i {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255, 255, 255, 0.42);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.login-button.success {
  background: linear-gradient(180deg, #ff8a4d, #ff5000);
  box-shadow: 0 0 0 4px rgba(255, 80, 0, 0.12), 0 18px 50px rgba(255, 80, 0, 0.4);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.075);
  color: #765f5b;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.card-footer span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.card-footer i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(255, 80, 0, 0.8);
}

.page-footer {
  position: fixed;
  right: 0;
  bottom: 22px;
  left: 0;
  color: rgba(255, 255, 255, 0.28);
  font-size: 11px;
  text-align: center;
}

@media (max-width: 640px) {
  .login-header {
    position: relative;
    min-height: auto;
    padding: 16px;
  }

  .brand strong {
    font-size: 16px;
  }

  .brand small,
  .security-label {
    display: none;
  }

  .login-stage {
    min-height: calc(100vh - 76px);
    padding: 88px 16px 64px;
  }

  .credential-card {
    padding: 36px 24px 22px;
  }

  .form-options {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .page-footer {
    position: relative;
    bottom: auto;
    padding: 0 18px 20px;
  }
}

@media (max-height: 780px) and (min-width: 641px) {
  .login-header {
    min-height: 72px;
    padding-block: 12px;
  }

  .login-stage {
    padding-top: 116px;
    padding-bottom: 52px;
  }

  .credential-card {
    padding-top: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .side-rays-container,
  .login-button,
  .login-button.loading i {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}