:root {
  --color-page: #f5f5f3;
  --color-text: #1a1d1b;
  --color-muted: #717171;
  --color-header: #0b0b0b;
  --color-header-text: #fff;
  --color-white: #fff;
  --color-primary: #598f80;
  --color-primary-hover: #4e7f72;
  --color-secondary: #fff;
  --color-secondary-hover: #f1f4f2;
  --color-border: #d9dfdb;
  --color-control-border: #c4ccc7;
  --color-error: #d92b20;
  --radius-button: 12px;
}

* {
  box-sizing: border-box;
}

html {
  font-family: "M PLUS Rounded 1c", sans-serif;
}

body {
  height: 100dvh;
  margin: 0;
  overflow: hidden;
  background: var(--color-page);
  color: var(--color-text);
  font-family: inherit;
}

button,
input,
select,
textarea,
a {
  font-family: inherit;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  height: 54px;
  padding: 0 20px;
  background: var(--color-header);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.14);
}

.site-logo {
  color: var(--color-header-text);
  font-size: 21px;
  font-weight: 400;
  line-height: 1;
  text-decoration: none;
}

.main-content {
  display: grid;
  height: calc(100dvh - 54px);
  margin-top: 54px;
  overflow-y: auto;
  place-items: center;
  padding: 56px 24px;
}

.account-panel {
  width: min(100%, 440px);
  padding: 48px;
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: var(--color-white);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.07);
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.18em;
}

.page-title {
  margin: 0;
  font-size: clamp(1.75rem, 7vw, 2.2rem);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.03em;
}

.page-step {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 400;
}

.page-title + .page-step {
  margin-top: 1px;
}

.welcome-text {
  margin: 8px 0 0;
  font-size: 1.16rem;
  font-weight: 400;
}

.page-description {
  margin: 18px auto 0;
  color: var(--color-muted);
  font-size: 1.06rem;
  line-height: 1.8;
}

.page-step + .page-description {
  margin-top: 12px;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 32px;
  text-align: left;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.96rem;
  font-weight: 400;
}

.form-input {
  width: 100%;
  min-height: 50px;
  padding: 10px 14px;
  border: 1px solid var(--color-control-border);
  border-radius: 12px;
  background: var(--color-white);
  color: var(--color-text);
  font-size: 1.06rem;
}

.form-input:focus {
  border-color: var(--color-text);
  outline: 3px solid rgba(23, 23, 23, 0.1);
  outline-offset: 1px;
}

.form-input.is-invalid {
  border-color: var(--color-error);
}

.form-input.is-invalid:focus {
  border-color: var(--color-error);
  outline-color: rgba(217, 43, 32, 0.16);
}

.form-help {
  color: var(--color-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.form-error {
  min-height: 1.25em;
  color: var(--color-error);
  font-size: 0.86rem;
  font-weight: 400;
  line-height: 1.5;
}

.form-message {
  font-size: 1.06rem;
  line-height: 1.5;
}

.form-message.is-error {
  color: var(--color-error);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  text-align: center;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.button-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-button);
  cursor: pointer;
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    transform 160ms ease;
}

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

.button:focus-visible,
.site-logo:focus-visible {
  outline: 3px solid #8ab4ff;
  outline-offset: 3px;
}

.button-primary {
  background: var(--color-primary);
  box-shadow: 0 5px 14px rgba(89, 143, 128, 0.26);
  color: var(--color-white);
}

.button-primary:hover {
  background: var(--color-primary-hover);
}

.button-secondary {
  border-color: var(--color-control-border);
  background: var(--color-secondary);
  color: var(--color-text);
}

.button-secondary:hover {
  background: var(--color-secondary-hover);
}

.demo-note {
  margin: 20px 0 0;
  color: #9a9a96;
  font-size: 0.81rem;
}

[hidden] {
  display: none !important;
}

@media (max-width: 520px) {
  .site-header {
    height: 54px;
    padding: 0 20px;
  }

  .main-content {
    height: calc(100dvh - 54px);
    margin-top: 54px;
    padding: 32px 16px;
  }

  .account-panel {
    padding: 38px 24px;
    border-radius: 20px;
  }
}