:root {
  --page: #090e10;
  --surface: #12191c;
  --surface-inset: #0d1416;
  --surface-hover: #172226;
  --ink: #edf4f2;
  --muted: #94a39f;
  --faint: #62716d;
  --line: #273338;
  --line-strong: #3a4c51;
  --cyan: #3ecfc1;
  --cyan-soft: #123b38;
  --gold: #e0b95c;
  --danger: #ff7676;
  --danger-soft: #3f2023;
  font-family: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--page);
}

* { box-sizing: border-box; }

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
}

body {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  color: var(--ink);
  background-color: var(--page);
  font-size: 14px;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(62, 207, 193, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 207, 193, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
}

button,
input {
  font: inherit;
  letter-spacing: 0;
}

.login-main {
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 36px 20px;
}

.login-panel {
  position: relative;
  width: min(432px, 100%);
  padding: 30px 34px 27px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.42), inset 0 1px rgba(255, 255, 255, 0.025);
}

.login-panel::before,
.login-panel::after {
  position: absolute;
  top: 0;
  height: 2px;
  content: "";
}

.login-panel::before {
  right: 0;
  left: 0;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(62, 207, 193, 0.35);
}

.login-panel::after {
  right: 0;
  width: 74px;
  background: var(--gold);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 4px;
  padding: 6px;
  background: #0d1416;
  border: 1px solid #3e565a;
  border-radius: 5px;
  box-shadow: inset 0 0 0 1px rgba(62, 207, 193, 0.08), 0 0 18px rgba(62, 207, 193, 0.09);
}

.brand-mark span {
  display: block;
  background: var(--cyan);
  border-radius: 1px 1px 0 0;
  box-shadow: 0 0 7px rgba(62, 207, 193, 0.32);
}

.brand-mark span:nth-child(1) { height: 42%; }
.brand-mark span:nth-child(2) { height: 78%; background: var(--gold); }
.brand-mark span:nth-child(3) { height: 60%; }

.brand-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.brand-copy strong {
  font-size: 16px;
  line-height: 1.25;
  font-weight: 680;
}

.brand-copy span {
  overflow: hidden;
  color: #73aaa4;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 9px;
}

.access-state {
  min-height: 30px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 23px;
  padding: 0 10px;
  color: #79aaa5;
  background: var(--surface-inset);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 9px;
}

.access-dot {
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(62, 207, 193, 0.65);
}

.access-rule {
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.login-heading { margin: 29px 0 23px; }

.login-heading h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 680;
}

.login-heading p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.login-error {
  min-height: 42px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  margin: -4px 0 18px;
  padding: 9px 11px;
  color: #ffaaaa;
  background: var(--danger-soft);
  border: 1px solid #6b3237;
  border-left: 3px solid var(--danger);
  border-radius: 4px;
  line-height: 1.45;
}

.error-code {
  padding-right: 9px;
  color: var(--danger);
  border-right: 1px solid #744046;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 9px;
}

.login-form {
  display: grid;
  gap: 17px;
}

.field-group {
  min-width: 0;
  display: grid;
  gap: 7px;
}

.field-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #b8c4c1;
  font-size: 12px;
  font-weight: 620;
}

.field-code {
  color: var(--faint);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 8px;
  font-weight: 500;
}

.field-group input {
  width: 100%;
  height: 48px;
  padding: 0 13px;
  color: var(--ink);
  caret-color: var(--cyan);
  background: var(--surface-inset);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  outline: 0;
}

.field-group input:hover { border-color: #52666b; }

.field-group input:focus-visible {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(62, 207, 193, 0.14), inset 3px 0 var(--cyan);
}

.field-group input[aria-invalid="true"] { border-color: #784047; }

.field-group input:-webkit-autofill,
.field-group input:-webkit-autofill:hover,
.field-group input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink);
  caret-color: var(--cyan);
  box-shadow: 0 0 0 1000px var(--surface-inset) inset;
  border-color: var(--cyan);
}

.login-form button {
  width: 100%;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding: 0 15px 0 17px;
  color: #071210;
  background: var(--cyan);
  border: 1px solid var(--cyan);
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
}

.login-form button:hover {
  background: #65d9ce;
  border-color: #65d9ce;
}

.login-form button:active { background: #2db8ab; }

.login-form button:focus-visible {
  outline: 3px solid rgba(62, 207, 193, 0.28);
  outline-offset: 3px;
}

.button-arrow {
  font-family: "Segoe UI Symbol", sans-serif;
  font-size: 18px;
  font-weight: 400;
}

.panel-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 25px;
  padding-top: 17px;
  color: var(--faint);
  border-top: 1px solid var(--line);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 8px;
}

@media (max-width: 480px) {
  .login-main { padding: 18px 12px; }
  .login-panel { padding: 25px 20px 21px; }
  .login-heading { margin: 25px 0 21px; }
  .login-heading h1 { font-size: 22px; }
  .access-state { margin-top: 20px; }
  .panel-footer { margin-top: 22px; }
}

@media (max-height: 680px) {
  .login-main { align-items: start; padding-top: 16px; padding-bottom: 16px; }
  .login-panel { padding-top: 24px; padding-bottom: 20px; }
  .access-state { margin-top: 17px; }
  .login-heading { margin: 19px 0 17px; }
  .panel-footer { margin-top: 19px; padding-top: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}