:root {
  --navy: #294263;
  --charcoal: #4b4a48;
  --gray: #d6d8d4;
  --sand: #e5ddc7;
  --blue: #a3c2e1;
  --ink: #1b2430;
  --bad: #9b2c2c;
  --bad-bg: #fde8e6;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  overflow-x: clip;
}
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #f4f1ea;
}

.shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
}

.brand-pane {
  background: var(--navy);
  color: #fff;
  padding: calc(16px + var(--safe-top)) 20px 18px;
}
.lockup {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  width: min(240px, 78vw);
}
.logo-crop {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 795 / 233;
}
.logo-white {
  position: absolute;
  left: calc(183 / 795 * -100%);
  top: calc(75 / 233 * -100%);
  width: calc(1126 / 795 * 100%);
  height: calc(397 / 233 * 100%);
  max-width: none;
  display: block;
}
.tag {
  margin: 0;
  padding: 0;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sand);
}

.form-pane {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 20px calc(28px + var(--safe-bottom));
}
.form-card { width: min(400px, 100%); }
.logo-color { display: none; }
.host {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal);
}
h1 {
  margin: 0 0 8px;
  font-size: 26px;
  letter-spacing: -0.03em;
}
.lede { margin: 0 0 20px; color: var(--charcoal); font-size: 16px; line-height: 1.4; }

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--charcoal);
}
.field input {
  border: 1px solid #c9c4b8;
  border-radius: 10px;
  padding: 14px 14px;
  min-height: 52px;
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  color: var(--ink);
  background: #fff;
  width: 100%;
}
#code {
  font-size: 28px;
  letter-spacing: 0.28em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.field input:focus {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
}

.submit {
  width: 100%;
  margin-top: 8px;
  border: 0;
  border-radius: 10px;
  padding: 16px 16px;
  min-height: 52px;
  background: var(--navy);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
}
.submit:disabled { opacity: 0.6; }

.banner {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--bad-bg);
  color: var(--bad);
  font-size: 15px;
}
.banner.note {
  background: #eef4fa;
  color: var(--navy);
}
.text-btn {
  border: 0;
  background: none;
  padding: 12px 0;
  min-height: 44px;
  color: var(--navy);
  font-weight: 700;
  text-decoration: underline;
}
.hint {
  margin: 12px 0 0;
  font-size: 15px;
  color: var(--charcoal);
  text-align: center;
}
.sandbox {
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px dashed var(--gray);
  border-radius: 12px;
  background: #fff;
}
.sandbox-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal);
}
.sandbox-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 40px;
  font-variant-numeric: tabular-nums;
}
.sandbox-row span { color: var(--charcoal); text-transform: capitalize; }
.sandbox-note {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--charcoal);
  line-height: 1.4;
}

@media (min-width: 801px) {
  .shell {
    grid-template-columns: minmax(280px, 42%) 1fr;
    grid-template-rows: 1fr;
  }
  .brand-pane {
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }
  .lockup { width: min(280px, 100%); }
  .tag { font-size: 13px; }
  .form-pane {
    align-items: center;
    padding: 32px 20px;
  }
  h1 { font-size: 28px; }
}