/* ── Palette ─────────────────────────────────────────────────────────── */
:root {
  --cream: #f4f1ea;
  --white: #ffffff;
  --navy: #1f2a44;
  --navy-deep: #16202f;
  --navy-outer: #2d3c60;
  --navy-mid: #3b4f7d;
  --slate: #6b7b90;
  --slate-label: #545e70;
  --slate-link: #465983;
  --slate-soft: #a2aab7;
  --line: #dcd7cc;
  --line-strong: #cfc9bd;
  --dot-idle: #c9c3b6;
  --placeholder: #9aa3b2;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--cream);
  color: var(--navy-deep);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--navy);
  color: var(--cream);
}

/* ── Page frame ──────────────────────────────────────────────────────── */
.page {
  width: min(65.5rem, calc(100vw - 5rem));
  min-height: 100vh;
  margin: 0 auto;
  padding: 2.75rem 0 1.5rem;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 4.75rem;
}

/* ── Brand panel ─────────────────────────────────────────────────────── */
.brand {
  flex: 0 0 28.75rem;
  width: 28.75rem;
}

.brand__card {
  width: 100%;
  height: 43.75rem;
  padding-top: 6.6875rem;
  display: flex;
  justify-content: center;
  background: var(--navy);
  border-radius: 2.375rem;
  overflow: hidden;
}

.brand__inner {
  width: 19.75rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.brand__orb {
  position: relative;
  width: 19.75rem;
  height: 19.75rem;
  flex: 0 0 auto;
}

.brand__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.brand__ring--outer {
  width: 100%;
  height: 100%;
  background: var(--navy-outer);
}

.brand__ring--middle {
  width: 61.5%;
  height: 61.5%;
  background: var(--navy-mid);
}

.brand__ring--core {
  width: 16.4%;
  height: 16.4%;
  background: var(--cream);
}

.brand__lines {
  width: 100%;
  margin-top: 2.875rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.8125rem;
}

.brand__line {
  display: block;
  height: 1rem;
  border-radius: 0.5rem;
  background: var(--navy-mid);
}

.brand__line--long {
  width: 19.0625rem;
}

.brand__line--medium {
  width: 15.6875rem;
}

.brand__line--short {
  width: 12rem;
}

.brand__pill {
  width: 14.125rem;
  height: 3.25rem;
  margin-top: 1.5rem;
  border-radius: 1.625rem;
  background: var(--cream);
}

.brand__dots {
  display: flex;
  align-items: center;
  gap: 0.4375rem;
  margin-top: 0.75rem;
}

.brand__dot {
  width: 0.6875rem;
  height: 0.6875rem;
  border-radius: 50%;
  background: var(--dot-idle);
}

.brand__dot--active {
  background: var(--navy);
}

/* ── Auth column ─────────────────────────────────────────────────────── */
.auth {
  flex: 0 0 32rem;
  width: 32rem;
  margin-top: 4.75rem;
}

.auth__title {
  margin: 0;
  font-size: 2.8125rem;
  line-height: 3.375rem;
  font-weight: 400;
  letter-spacing: -0.035em;
  color: var(--navy-deep);
}

.auth__subtitle {
  margin: 0.375rem 0 0;
  font-size: 1.09375rem;
  line-height: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.002em;
  color: var(--slate);
}

.form {
  margin-top: 2.625rem;
}

.field + .field {
  margin-top: 3rem;
}

.field__label {
  display: block;
  font-size: 0.9375rem;
  line-height: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  color: var(--slate-label);
}

.field__input {
  display: block;
  width: 100%;
  height: 3.4375rem;
  margin-top: 0.625rem;
  padding: 0 1.5rem;
  border: 1px solid var(--line);
  border-radius: 0.8125rem;
  background: var(--white);
  color: var(--navy-deep);
  font-family: inherit;
  font-size: 1.09375rem;
  font-weight: 400;
  line-height: normal;
  caret-color: var(--navy);
  appearance: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.field__input::placeholder {
  color: var(--placeholder);
  opacity: 1;
}

.field__input:hover {
  border-color: var(--line-strong);
}

.field__input:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 0.25rem rgba(31, 42, 68, 0.08);
}

/* Remember-me row */
.form__row {
  margin-top: 3.25rem;
  padding-right: 4.0625rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.remember {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9375rem;
  line-height: 1.5rem;
  font-weight: 500;
  color: var(--slate-label);
  cursor: pointer;
  user-select: none;
}

.remember__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.remember__box {
  width: 3.5rem;
  height: 2rem;
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  border-radius: 0.5625rem;
  background: var(--white);
  transition: background-color 160ms ease, border-color 160ms ease,
    box-shadow 160ms ease;
}

.remember__input:checked + .remember__box {
  border-color: var(--navy);
  background: var(--navy);
}

.remember__input:focus-visible + .remember__box {
  box-shadow: 0 0 0 0.25rem rgba(31, 42, 68, 0.14);
}

.remember:hover .remember__box {
  border-color: var(--navy);
}

.remember__text {
  transform: translateY(-0.5px);
}

.forgot {
  flex: 0 0 auto;
  color: var(--slate-link);
  font-size: 0.9375rem;
  line-height: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.002em;
  text-decoration: none;
  border-radius: 0.25rem;
  transition: color 160ms ease;
}

.forgot:hover {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.forgot:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
}

/* Buttons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  font-family: inherit;
  font-size: 1.125rem;
  line-height: 1.25;
  font-weight: 500;
  letter-spacing: 0.002em;
  border-radius: 1.125rem;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease,
    transform 160ms ease, box-shadow 160ms ease;
}

.btn:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  height: 4.1875rem;
  margin-top: 2.125rem;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: var(--cream);
}

.btn--primary:hover {
  background: #26334f;
  border-color: #26334f;
}

.btn--primary[data-busy="true"] {
  cursor: progress;
  opacity: 0.85;
}

.btn--google {
  height: 4rem;
  margin-top: 1.1875rem;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--navy-deep);
}

.btn--google:hover {
  background: #fbf9f5;
  border-color: var(--line-strong);
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  height: 1.25rem;
  margin-top: 1.9375rem;
  color: var(--slate-soft);
  font-size: 0.9375rem;
  line-height: 1.25rem;
  font-weight: 400;
}

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

.divider__label {
  display: block;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 1240px) {
  html {
    font-size: clamp(14px, 1.25vw, 16px);
  }
}

@media (max-width: 1049px) {
  html {
    font-size: 16px;
  }

  .page {
    width: min(32rem, calc(100vw - 3rem));
    display: block;
    padding: clamp(2rem, 7vh, 4.5rem) 0 2.5rem;
  }

  .brand {
    display: none;
  }

  .auth {
    width: 100%;
    margin-top: 0;
  }
}

@media (max-width: 520px) {
  .page {
    width: calc(100vw - 2.5rem);
  }

  .auth__title {
    font-size: 2.25rem;
    line-height: 2.75rem;
  }

  .auth__subtitle {
    font-size: 1.0625rem;
    line-height: 1.5rem;
  }

  .form {
    margin-top: 2rem;
  }

  .field + .field {
    margin-top: 2rem;
  }

  .form__row {
    margin-top: 2rem;
    padding-right: 0;
  }

  .btn--primary {
    margin-top: 1.75rem;
  }

  .divider {
    margin-top: 1.5rem;
  }

  .btn--google {
    margin-top: 1rem;
  }
}

@media (max-height: 760px) and (min-width: 1050px) {
  html {
    font-size: 14px;
  }

  .page {
    padding-top: 1.75rem;
  }
}

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