:root {
  color-scheme: light dark;
  font-family: "Avenir Next", Avenir, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --page: #e9eee8;
  --surface: #f8faf5;
  --surface-soft: #eef3ec;
  --ink: #17362b;
  --ink-strong: #0d261e;
  --muted: #586b61;
  --line: #c7d3c9;
  --accent: #dba849;
  --accent-strong: #75470b;
  --danger: #a83831;
  --danger-soft: #f5ded9;
  --shadow: 0 24px 70px rgba(27, 53, 43, 0.18);
  --panel-radius: 18px;
  --control-radius: 12px;
}

* { box-sizing: border-box; }

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

body {
  min-height: 100dvh;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 12%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 30%),
    linear-gradient(145deg, var(--page), color-mix(in srgb, var(--page) 82%, var(--ink)));
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }

button { color: inherit; }

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

button:focus-visible,
input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 72%, white);
  outline-offset: 2px;
}

.login-page {
  width: min(1140px, calc(100% - 48px));
  min-height: min(680px, calc(100dvh - 48px));
  margin: 24px auto;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(360px, .85fr);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: var(--panel-radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.login-intro {
  min-width: 0;
  display: flex;
  flex-direction: column;
  color: #f8f5e8;
  background: #102a20;
}

.anniversary-art {
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: #f7f5ed;
}

.anniversary-art img {
  display: block;
  width: 100%;
  height: auto;
}

.intro-copy {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(210px, .72fr);
  align-items: end;
  gap: 30px;
  padding: 27px 30px 30px;
  background:
    radial-gradient(circle at 88% 8%, rgba(219, 168, 73, .18), transparent 38%),
    linear-gradient(150deg, #22483a, #102a20 72%);
}

.kicker {
  margin: 0 0 12px;
  color: #edc779;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.intro-copy h1 {
  margin: 0;
  color: #f8f5e8;
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.02;
  letter-spacing: -.045em;
}

.intro-copy > div > p:last-child {
  max-width: 38ch;
  margin: 11px 0 0;
  color: rgba(248, 245, 232, .74);
  font-size: 12px;
  line-height: 1.5;
}

.privacy-note {
  margin: 0;
  padding: 13px 15px;
  border-left: 3px solid var(--accent);
  color: rgba(248, 245, 232, .74);
  background: rgba(255, 255, 255, .055);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.55;
}

.login-panel {
  display: grid;
  place-items: center;
  padding: 42px;
  background: var(--surface);
}

#login-form { width: min(100%, 350px); }

.form-heading { margin-bottom: 28px; }

.form-heading h2 {
  margin: 0;
  color: var(--ink-strong);
  font-size: 27px;
  line-height: 1.08;
  letter-spacing: -.04em;
}

.form-heading p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.field-group { display: grid; gap: 8px; }

.field-group + .field-group { margin-top: 18px; }

.field-group label {
  color: var(--ink-strong);
  font-size: 12px;
  font-weight: 800;
}

.field-group input {
  width: 100%;
  height: 50px;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  color: var(--ink-strong);
  background: var(--surface-soft);
  font-size: 16px;
  outline: 0;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}

.field-group > input { padding: 0 14px; }

.field-group input:hover { border-color: color-mix(in srgb, var(--accent-strong) 55%, var(--line)); }

.field-group input:focus {
  border-color: var(--accent-strong);
  background: var(--surface);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.password-field { position: relative; }

.password-field input { padding: 0 70px 0 14px; }

.password-field button {
  position: absolute;
  top: 5px;
  right: 5px;
  min-width: 58px;
  height: 40px;
  padding: 0 10px;
  border: 0;
  border-radius: 9px;
  color: var(--accent-strong);
  background: transparent;
  font-size: 11px;
  font-weight: 850;
  cursor: pointer;
}

.password-field button:hover { background: color-mix(in srgb, var(--accent) 15%, transparent); }

.password-field button:active { transform: scale(.97); }

.form-error {
  margin: 16px 0 0;
  padding: 11px 12px;
  border-radius: var(--control-radius);
  color: var(--danger);
  background: var(--danger-soft);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.submit-button {
  width: 100%;
  min-height: 50px;
  margin-top: 22px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: var(--control-radius);
  color: #fff9ec;
  background: var(--ink);
  font-size: 13px;
  font-weight: 850;
  cursor: pointer;
  transition: transform .16s ease, background-color .16s ease, opacity .16s ease;
}

.submit-button:hover { background: var(--ink-strong); }

.submit-button:active { transform: translateY(1px) scale(.985); }

.submit-button:disabled { opacity: .72; cursor: wait; }

.noscript-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0f1813;
    --surface: #16221b;
    --surface-soft: #1c2b22;
    --ink: #dce9df;
    --ink-strong: #f3f7f1;
    --muted: #a9b8ad;
    --line: #354a3d;
    --accent: #e3b45b;
    --accent-strong: #efc46f;
    --danger: #ffaaa1;
    --danger-soft: #3c2521;
    --shadow: 0 24px 70px rgba(0, 0, 0, .42);
  }

  body {
    background:
      radial-gradient(circle at 10% 12%, rgba(219, 168, 73, .12), transparent 30%),
      linear-gradient(145deg, var(--page), #15241b);
  }

  .login-intro { background: #10241b; }

  .intro-copy { background: linear-gradient(150deg, #244738, #10241b 72%); }

  .submit-button {
    border-color: var(--accent);
    color: #13271e;
    background: var(--accent);
  }

  .submit-button:hover { background: #f0c979; }
}

@media (max-width: 760px) {
  .login-page {
    width: 100%;
    min-height: 100dvh;
    margin: 0;
    grid-template-columns: 1fr;
    overflow: visible;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .login-intro { min-height: auto; }

  .intro-copy {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 23px 22px 25px;
  }

  .intro-copy h1 { font-size: 28px; }

  .intro-copy > div > p:last-child { margin-top: 9px; font-size: 12px; }

  .privacy-note { max-width: 48ch; }

  .login-panel { min-height: 390px; align-items: start; padding: 31px 22px calc(34px + env(safe-area-inset-bottom)); }

  #login-form { width: 100%; }

  .form-heading { margin-bottom: 24px; }
}

@media (max-height: 700px) and (min-width: 761px) {
  .login-page { min-height: calc(100dvh - 32px); margin-block: 16px; }
  .login-panel { padding: 32px; }
  .intro-copy { padding: 22px 26px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; }
}