:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
  --font-display: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --page-bg: #f5f9fc;
  --page-glow-a: rgb(77 231 203 / 18%);
  --page-glow-b: rgb(77 166 255 / 14%);
  --card-bg: rgb(255 255 255 / 94%);
  --card-border: #e0eaf2;
  --card-shadow: 0 26px 70px rgb(27 67 103 / 12%);
  --ink: #10294b;
  --muted: #5b6f89;
  --accent: #0664cf;
  --accent-strong: #0558b5;
  --button-start: #076bd8;
  --button-end: #065fc5;
  --accent-soft: #e9f3ff;
  --field-bg: #fff;
  --field-border: #d8e3ef;
  --field-icon: #526d91;
  --focus: #4e9eff;
  --divider: #dce6ef;
  --message-bg: #edf6ff;
  --message-border: #cfe4fb;
  --message-text: #234a71;
  --error: #b42337;
  --app-bg: var(--page-bg);
  --app-surface: #fff;
  --app-surface-alt: #f7faff;
  --app-border: var(--card-border);
  --app-ink: var(--ink);
  --app-muted: var(--muted);
  --app-accent: var(--accent);
  --app-accent-soft: var(--accent-soft);
  --app-green: #08714e;
  --app-green-soft: #e4f8f0;
  --app-cyan: #086c80;
  --app-cyan-soft: #e4f8fb;
  --app-violet: #7443d0;
  --app-violet-soft: #f0eaff;
  --app-blue-soft: #e7f1ff;
  --app-shadow: 0 5px 20px rgb(27 67 103 / 5%);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page-bg: #06152b;
  --page-glow-a: rgb(9 91 235 / 24%);
  --page-glow-b: rgb(14 47 116 / 34%);
  --card-bg: rgb(5 27 55 / 96%);
  --card-border: #123b6d;
  --card-shadow: 0 28px 80px rgb(0 0 0 / 36%);
  --ink: #f4f8ff;
  --muted: #a9bad4;
  --accent: #1688ff;
  --accent-strong: #48a1ff;
  --button-start: #0870d8;
  --button-end: #0664c8;
  --accent-soft: #0d3159;
  --field-bg: #071d39;
  --field-border: #245080;
  --field-icon: #a8bfdf;
  --focus: #65adff;
  --divider: #244263;
  --message-bg: #0b3158;
  --message-border: #245080;
  --message-text: #d6e9ff;
  --error: #ff9ba5;
  --app-surface: #0b203d;
  --app-surface-alt: #0e2748;
  --app-green: #38d69e;
  --app-green-soft: #103d3c;
  --app-cyan: #53d5e9;
  --app-cyan-soft: #103b4d;
  --app-violet: #c1a0ff;
  --app-violet-soft: #302555;
  --app-blue-soft: #12375e;
  --app-shadow: 0 10px 28px rgb(0 0 0 / 17%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --page-bg: #06152b;
    --page-glow-a: rgb(9 91 235 / 24%);
    --page-glow-b: rgb(14 47 116 / 34%);
    --card-bg: rgb(5 27 55 / 96%);
    --card-border: #123b6d;
    --card-shadow: 0 28px 80px rgb(0 0 0 / 36%);
    --ink: #f4f8ff;
    --muted: #a9bad4;
    --accent: #1688ff;
    --accent-strong: #48a1ff;
    --button-start: #0870d8;
    --button-end: #0664c8;
    --accent-soft: #0d3159;
    --field-bg: #071d39;
    --field-border: #245080;
    --field-icon: #a8bfdf;
    --focus: #65adff;
    --divider: #244263;
    --message-bg: #0b3158;
    --message-border: #245080;
    --message-text: #d6e9ff;
    --error: #ff9ba5;
    --app-surface: #0b203d;
    --app-surface-alt: #0e2748;
    --app-green: #38d69e;
    --app-green-soft: #103d3c;
    --app-cyan: #53d5e9;
    --app-cyan-soft: #103b4d;
    --app-violet: #c1a0ff;
    --app-violet-soft: #302555;
    --app-blue-soft: #12375e;
    --app-shadow: 0 10px 28px rgb(0 0 0 / 17%);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--page-bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding: 32px 20px;
  background:
    radial-gradient(ellipse at 8% 4%, var(--page-glow-a), transparent 37%),
    radial-gradient(ellipse at 95% 94%, var(--page-glow-b), transparent 42%),
    var(--page-bg);
  transition: background-color 180ms ease;
}

.login-card {
  position: relative;
  width: min(100%, 500px);
  padding: 44px 48px 30px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  color: var(--ink);
  text-align: center;
  backdrop-filter: blur(16px);
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.theme-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--card-border);
  border-radius: 11px;
  background: var(--field-bg);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background-color 150ms ease;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg {
  width: 19px;
  height: 19px;
}

.theme-toggle__moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-toggle__sun {
    display: none;
  }

  :root:not([data-theme]) .theme-toggle__moon {
    display: block;
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 0 auto 24px;
  color: var(--accent);
  text-align: left;
}

.brand__mark {
  width: 42px;
  height: 42px;
  flex: none;
}

.brand__copy {
  display: grid;
  gap: 3px;
}

.brand__word {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -1.4px;
  line-height: 1.1;
  white-space: nowrap;
}

.brand__word span {
  color: var(--accent);
}

.brand__caption {
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  text-align: center;
}

.login-heading {
  margin-bottom: 26px;
}

.login-heading h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -0.8px;
}

.login-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.login-form {
  display: grid;
  gap: 14px;
}

.field {
  min-width: 0;
  text-align: left;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.field__control {
  position: relative;
}

.field__icon {
  position: absolute;
  top: 50%;
  left: 15px;
  width: 20px;
  height: 20px;
  color: var(--field-icon);
  pointer-events: none;
  transform: translateY(-50%);
}

.field input {
  width: 100%;
  min-height: 52px;
  padding: 0 48px;
  border: 1px solid var(--field-border);
  border-radius: 10px;
  background: var(--field-bg);
  color: var(--ink);
  font-size: 14px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 180ms ease;
}

.field input::placeholder {
  color: var(--muted);
  opacity: 1;
}

.field input:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.field input[aria-invalid="true"] {
  border-color: var(--error);
}

.field__error {
  display: block;
  min-height: 0;
  margin-top: 0;
  color: var(--error);
  font-size: 12px;
}

.field__error:not(:empty) {
  margin-top: 5px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 9px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--field-icon);
  cursor: pointer;
  transform: translateY(-50%);
}

.password-toggle:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.password-toggle svg {
  width: 19px;
  height: 19px;
}

.submit-button {
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 2px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(120deg, var(--button-start), var(--button-end));
  box-shadow: 0 8px 20px rgb(8 124 240 / 22%);
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: filter 150ms ease, transform 150ms ease;
}

.submit-button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

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

.submit-button svg {
  width: 19px;
  height: 19px;
}

.recovery-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 650;
}

.recovery-link:hover {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-message {
  display: none;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid var(--message-border);
  border-radius: 9px;
  background: var(--message-bg);
  color: var(--message-text);
  font-size: 12px;
  line-height: 1.5;
  text-align: left;
}

.form-message[data-visible="true"] {
  display: block;
}

.card-divider {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 24px 0 20px;
}

.card-divider::before,
.card-divider::after {
  height: 1px;
  flex: 1;
  background: var(--divider);
  content: "";
}

.card-divider span {
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--muted);
  border-radius: 50%;
}

.card-footer {
  color: var(--muted);
  font-size: 10px;
}

@media (max-width: 520px) {
  .auth-shell {
    padding: 22px 16px;
  }

  .login-card {
    padding: 42px 24px 26px;
    border-radius: 16px;
  }

  .brand {
    gap: 10px;
    margin-bottom: 20px;
  }

  .brand__mark {
    width: 38px;
    height: 38px;
  }

  .brand__word {
    font-size: 25px;
  }
}

@media (max-width: 360px) {
  .auth-shell {
    padding-right: 12px;
    padding-left: 12px;
  }

  .login-card {
    padding-right: 18px;
    padding-left: 18px;
  }

  .brand__word {
    font-size: 23px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}