:root {
  --paper-top: #efe3c8;
  --paper-bottom: #dac89f;
  --panel: rgba(255, 250, 240, 0.84);
  --panel-strong: rgba(255, 252, 246, 0.94);
  --ink: #18263c;
  --ink-soft: rgba(24, 38, 60, 0.76);
  --line: rgba(24, 38, 60, 0.12);
  --line-strong: rgba(24, 38, 60, 0.18);
  --accent: #8b3b28;
  --accent-deep: #662417;
  --gold: #b88d31;
  --green: #295f39;
  --shadow: 0 24px 64px rgba(52, 35, 10, 0.12);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "URW Palladio L", "Georgia", serif;
  --sans: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  --mono: "SFMono-Regular", "Menlo", "Monaco", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.6), transparent 32%),
    linear-gradient(180deg, var(--paper-top), var(--paper-bottom));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(24, 38, 60, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 38, 60, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.38), transparent 82%);
}

.page-shell {
  position: relative;
  width: min(1020px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 38px;
}

.hero {
  max-width: 740px;
  margin: 0 auto 24px;
  text-align: center;
}

.eyebrow,
.metric-card__eyebrow {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.04;
}

h1 {
  font-size: clamp(2.45rem, 4vw, 3.9rem);
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.45rem, 2vw, 1.92rem);
}

h3 {
  font-size: 1.06rem;
}

.lede,
.panel__body,
.feedback,
.fact-list,
.steps,
.step-card p,
.footer p,
.metric-card__meta,
.metric-card__footnote {
  color: var(--ink-soft);
  line-height: 1.58;
}

.lede {
  margin: 16px auto 0;
  max-width: 62ch;
  font-size: 1.01rem;
  text-wrap: pretty;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 20px;
}

.panel,
.footer {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: var(--shadow);
}

.panel {
  padding: 22px;
}

.panel--flow {
  grid-column: 1 / -1;
}

.panel__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}

.panel__header--stack {
  display: grid;
  gap: 10px;
}

.panel__body {
  margin: 0;
  font-size: 0.99rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  min-height: 38px;
  border-radius: 999px;
  background: rgba(184, 141, 49, 0.12);
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

.status-pill[data-status="up"] {
  background: rgba(41, 95, 57, 0.15);
  color: var(--green);
}

.status-pill[data-status="down"] {
  background: rgba(139, 59, 40, 0.12);
  color: var(--accent-deep);
}

.status-timestamp {
  margin: 12px 0 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.metric-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.4);
}

.metric-card--wide {
  grid-column: 1 / -1;
}

.metric-card__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.metric-card__value {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1;
  color: var(--ink);
}

.metric-card__value--compact {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  line-height: 1.15;
}

.metric-card__meta,
.metric-card__footnote {
  margin: 8px 0 0;
  font-size: 0.92rem;
}

.metric-meter {
  position: relative;
  width: 100%;
  height: 12px;
  margin-top: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(24, 38, 60, 0.12);
}

.metric-meter__fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gold), var(--accent));
  transition: width 220ms ease;
}

.fact-list,
.steps {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 18px;
}

.fact-list--plain {
  padding-left: 20px;
}

.invite-form {
  margin-top: 20px;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.92rem;
  font-weight: 700;
}

textarea {
  width: 100%;
  min-height: 100px;
  padding: 14px 15px;
  resize: vertical;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  font: 0.95rem/1.45 var(--mono);
}

.invite-form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

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

.button--primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  color: #fff8f0;
  box-shadow: 0 14px 28px rgba(102, 36, 23, 0.2);
}

.button--ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.46);
  border-color: var(--line-strong);
}

.button--small {
  min-height: 38px;
  padding: 0 12px;
  font-size: 0.92rem;
}

textarea:focus-visible,
.button:focus-visible {
  outline: 2px solid rgba(184, 141, 49, 0.48);
  outline-offset: 2px;
}

.feedback {
  min-height: 1.5rem;
  margin: 16px 0 0;
  font-size: 0.95rem;
}

.feedback[data-tone="ok"] {
  color: var(--green);
}

.feedback[data-tone="error"] {
  color: var(--accent-deep);
}

.seal-result {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.44);
}

.seal-result__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.seal-result__label {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.seal-result__token {
  margin: 12px 0 0;
  padding: 12px 13px;
  border-radius: var(--radius-md);
  background: rgba(24, 38, 60, 0.05);
  color: var(--ink);
  font: 0.9rem/1.45 var(--mono);
  overflow-wrap: anywhere;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.step-card {
  display: grid;
  gap: 12px;
  padding: 18px;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.34);
}

.step-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(184, 141, 49, 0.16);
  color: var(--accent-deep);
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 700;
}

.step-card p {
  margin: 0;
}

.footer {
  margin-top: 20px;
  padding: 18px 22px;
}

.footer p {
  margin: 0;
  text-align: center;
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .panel--flow {
    grid-column: auto;
  }

  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100%, calc(100% - 22px));
    padding: 24px 0 26px;
  }

  .panel,
  .footer {
    border-radius: 24px;
  }

  .panel {
    padding: 18px;
  }

  .panel__header,
  .seal-result__header {
    display: grid;
  }

  .status-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.18rem;
  }

  .invite-form__actions {
    display: grid;
  }

  .button {
    width: 100%;
  }
}