:root {
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

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

body { min-height: 100svh; }

.page {
  --ink: #211713;
  --muted: #746761;
  --paper: #f5f2e9;
  --card: #fffdf8;
  --line: #ddd7cf;
  --green: #174d34;
  --green-bright: #52cf84;
  --lime: #d9f36c;
  --sales: #d94a2c;
  --sales-dark: #a42f1a;
  --sales-soft: #ffdbcd;
  --field: #fff;
  --on-accent: #fff;
  --transparent: transparent;
  --glow-sales: rgba(243, 107, 77, 0.16);
  --glow-soft: rgba(255, 219, 205, 0.55);
  --shadow: 0 28px 80px rgba(59, 35, 26, 0.14);
  display: grid;
  width: 100%;
  min-height: 100svh;
  padding-inline: max(24px, calc((100% - 1180px) / 2));
  grid-template-rows: auto 1fr auto;
  color-scheme: light;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 9%, var(--glow-sales), var(--transparent) 25rem),
    radial-gradient(circle at 92% 88%, var(--glow-soft), var(--transparent) 28rem),
    var(--paper);
}

@media (prefers-color-scheme: dark) {
  .page {
    --ink: #f6ebe6;
    --muted: #c2aaa0;
    --paper: #1c1210;
    --card: #2a1b18;
    --line: #51362f;
    --green: #88d2a8;
    --green-bright: #8de3b2;
    --sales: #ff7657;
    --sales-dark: #ff9a80;
    --sales-soft: #5b2d23;
    --field: #211512;
    --on-accent: #1c1210;
    --glow-sales: rgba(255, 118, 87, 0.12);
    --glow-soft: rgba(91, 45, 35, 0.45);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
    color-scheme: dark;
  }

  #themeswitch:checked ~ .page {
    --ink: #211713;
    --muted: #746761;
    --paper: #f5f2e9;
    --card: #fffdf8;
    --line: #ddd7cf;
    --green: #174d34;
    --green-bright: #52cf84;
    --lime: #d9f36c;
    --sales: #d94a2c;
    --sales-dark: #a42f1a;
    --sales-soft: #ffdbcd;
    --field: #fff;
    --on-accent: #fff;
    --glow-sales: rgba(243, 107, 77, 0.16);
    --glow-soft: rgba(255, 219, 205, 0.55);
    --shadow: 0 28px 80px rgba(59, 35, 26, 0.14);
    color-scheme: light;
  }
}

@media (prefers-color-scheme: light) {
  #themeswitch:checked ~ .page {
    --ink: #f6ebe6;
    --muted: #c2aaa0;
    --paper: #1c1210;
    --card: #2a1b18;
    --line: #51362f;
    --green: #88d2a8;
    --green-bright: #8de3b2;
    --lime: #d9f36c;
    --sales: #ff7657;
    --sales-dark: #ff9a80;
    --sales-soft: #5b2d23;
    --field: #211512;
    --on-accent: #1c1210;
    --glow-sales: rgba(255, 118, 87, 0.12);
    --glow-soft: rgba(91, 45, 35, 0.45);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
    color-scheme: dark;
  }
}

.page,
.page *,
.page *::before,
.page *::after {
  transition: background-color 350ms ease, border-color 350ms ease,
    color 350ms ease, box-shadow 350ms ease;
}

a { color: inherit; }

.site-header {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid color-mix(in srgb, var(--ink) 14%, var(--transparent));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 760;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 26px;
  height: 27px;
  padding: 5px;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 3px;
  border-radius: 8px;
  background: var(--sales-dark);
}

.brand-mark span {
  border-radius: 4px;
  background: var(--on-accent);
}

.brand-mark span:nth-child(1) { height: 8px; }
.brand-mark span:nth-child(2) { height: 16px; }
.brand-mark span:nth-child(3) { height: 11px; }

.theme-toggle {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: color-mix(in srgb, var(--card) 70%, var(--transparent));
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

#themeswitch:checked ~ .page .theme-toggle {
  color: var(--on-accent);
  background: var(--sales-dark);
}

#themeswitch:focus-visible ~ .page .theme-toggle {
  outline: 3px solid var(--green-bright);
  outline-offset: 3px;
}

main {
  display: grid;
  align-items: start;
}

.calendar-intro {
  display: grid;
  padding: clamp(24px, 4vh, 48px) 0 clamp(40px, 7vh, 84px);
  grid-template-columns: minmax(280px, 0.82fr) minmax(520px, 1.18fr);
  gap: clamp(42px, 8vw, 100px);
  align-items: center;
}

.intro-copy { max-width: 520px; }

.eyebrow-row {
  display: flex;
  margin-bottom: 20px;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.eyebrow {
  margin: 0;
  color: var(--sales-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status {
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--sales-dark);
  background: color-mix(in srgb, var(--sales-soft) 60%, var(--transparent));
  font-size: 0.72rem;
  font-weight: 760;
}

h1 {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(3rem, 5.7vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

.lede {
  max-width: 44ch;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.25vw, 1.16rem);
  line-height: 1.65;
}

.principles {
  display: flex;
  margin-top: 28px;
  flex-wrap: wrap;
  gap: 8px;
}

.principles span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: color-mix(in srgb, var(--card) 58%, var(--transparent));
  font-size: 0.76rem;
  font-weight: 680;
}

.subscribe-card {
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.card-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.card-heading p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.card-heading h2 {
  margin: 0;
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -0.045em;
}

.file-type {
  display: grid;
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 16px;
  color: var(--on-accent);
  background: var(--sales-dark);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.url-box {
  display: grid;
  margin-top: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 9px;
}

.url-box input {
  min-width: 0;
  flex: 1;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: var(--field);
  font-family: "Courier New", Courier, monospace;
  font-size: 0.88rem;
}

.url-box button,
.action-btn {
  display: inline-flex;
  min-height: 46px;
  padding: 0 17px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: var(--field);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 760;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.url-box button {
  border-color: var(--sales-dark);
  color: var(--on-accent);
  background: var(--sales-dark);
  white-space: nowrap;
}

.copy-status {
  min-height: 1.25rem;
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.action-btn.primary {
  border-color: var(--sales-dark);
  color: var(--on-accent);
  background: var(--sales-dark);
}

.url-box button:hover,
.action-btn:hover { transform: translateY(-2px); }

.action-btn:not(.primary):hover {
  border-color: var(--sales);
  background: color-mix(in srgb, var(--sales-soft) 32%, var(--field));
}

.url-box input:focus,
.url-box button:focus-visible,
.action-btn:focus-visible,
.brand:focus-visible,
.site-footer a:focus-visible {
  outline: 3px solid var(--green-bright);
  outline-offset: 3px;
}

.site-footer {
  display: flex;
  min-height: 76px;
  padding: 16px 0;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid color-mix(in srgb, var(--ink) 14%, var(--transparent));
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.site-footer p {
  max-width: 84ch;
  margin: 0;
}

.site-footer a {
  font-weight: 720;
  text-underline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 960px) {
  .calendar-intro {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .intro-copy { max-width: 700px; }
  h1 { max-width: 12ch; }
}

@media (max-width: 620px) {
  .page { padding-inline: 14px; }
  .site-header { min-height: 64px; }

  .calendar-intro {
    padding: 22px 0 44px;
  }

  h1 {
    max-width: 10ch;
    font-size: clamp(2.65rem, 14vw, 4.1rem);
  }

  .lede { margin-top: 22px; }
  .subscribe-card { border-radius: 23px; }
  .action-buttons { display: grid; }

  .site-footer {
    padding: 22px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page,
  .page *,
  .page *::before,
  .page *::after { transition: none; }
}