.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--page);
  border-bottom: 1px solid var(--rule);
}

.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 24px;
  max-width: var(--w-main);
  margin: 0 auto;
}

.wordmark {
  font-family: var(--ff-head);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}
.wordmark__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--brand);
  border-radius: 50%;
  margin-left: 3px;
  transform: translateY(-1px);
}
.wordmark:hover { color: var(--ink); }

.nav {
  display: none;
  gap: 30px;
  align-items: center;
}
@media (min-width: 980px) { .nav { display: flex; } }
.nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 400;
  position: relative;
  padding: 6px 0;
}
.nav a:hover { color: var(--brand); }
.nav a[data-here]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 2px;
  background: var(--brand);
}
.nav .signin {
  background: var(--ink);
  color: var(--page);
  padding: 10px 20px;
  border-radius: var(--r-2);
  font-weight: 500;
}
.nav .signin:hover { background: var(--brand-deep); color: var(--page); }

.toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--rule);
  background: var(--card);
  border-radius: var(--r-2);
  padding: 0;
}
@media (min-width: 980px) { .toggle { display: none; } }
.toggle span,
.toggle span::before,
.toggle span::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
}
.toggle span { position: relative; }
.toggle span::before,
.toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}
.toggle span::before { top: -6px; }
.toggle span::after { top: 6px; }

.sheet {
  position: fixed;
  inset: 0;
  background: var(--page);
  z-index: 60;
  padding: 24px;
  display: none;
  flex-direction: column;
}
.sheet[aria-hidden="false"] { display: flex; }
.sheet__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}
.sheet__close {
  border: 1px solid var(--rule);
  background: var(--card);
  width: 44px;
  height: 44px;
  border-radius: var(--r-2);
  font-size: 1.4rem;
  line-height: 1;
}
.sheet__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}
.sheet__list a {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--ff-head);
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.sheet__list a:hover { color: var(--brand); }

.trail {
  font-size: 0.86rem;
  color: var(--mute);
  padding: 16px 0 8px;
}
.trail ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.trail li::after { content: "/"; margin-left: 6px; color: var(--rule); }
.trail li:last-child::after { content: none; }
.trail a { color: var(--mute); text-decoration: none; }
.trail a:hover { color: var(--brand); }
.trail li[aria-current] { color: var(--text); }

.endbar {
  background: var(--ink);
  color: rgba(245, 246, 248, 0.74);
  padding: 64px 0 28px;
  margin-top: 96px;
  font-size: 0.94rem;
}
.endbar a { color: var(--page); text-decoration: none; }
.endbar a:hover { text-decoration: underline; }
.endbar__cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(245, 246, 248, 0.08);
}
@media (max-width: 880px) {
  .endbar__cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .endbar__cols { grid-template-columns: 1fr; gap: 24px; }
}
.endbar h4 {
  color: var(--page);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
  font-family: var(--ff-body);
  font-weight: 500;
}
.endbar ul { list-style: none; padding: 0; margin: 0; }
.endbar li { margin-bottom: 10px; }
.endbar__base {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: rgba(245, 246, 248, 0.48);
  flex-wrap: wrap;
  gap: 12px;
}
.endbar__sig {
  font-family: var(--ff-head);
  font-style: italic;
  margin-top: 12px;
  max-width: 30ch;
  color: rgba(245, 246, 248, 0.6);
}

.block { padding: 80px 0; }
.block--tight { padding: 56px 0; }
.block--wide  { padding: 112px 0; }
.block--ink {
  background: var(--ink);
  color: rgba(245, 246, 248, 0.86);
}
.block--ink h2, .block--ink h3 { color: var(--page); }
.block--ink .kicker { color: rgba(245, 246, 248, 0.7); }
.block--card { background: var(--card); }

.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.cols-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); }
@media (max-width: 880px) {
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; gap: var(--sp-4); }
}
@media (max-width: 1080px) and (min-width: 881px) {
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
}

.signup {
  display: grid;
  gap: 12px;
  max-width: 440px;
}
.signup__line {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.signup label {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text);
}
.signup input[type="text"],
.signup input[type="email"],
.signup select {
  padding: 12px 14px;
  border: 1px solid var(--rule);
  background: var(--page);
  font-family: inherit;
  font-size: 1rem;
  border-radius: var(--r-2);
  color: var(--text);
}
.signup input:focus, .signup select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(51, 51, 102, 0.14);
}
.signup__check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.86rem;
  color: var(--mute);
}
.signup__check input { margin-top: 4px; }
.signup__trap {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  opacity: 0;
}
.signup__alert {
  font-size: 0.92rem;
  padding: 12px 14px;
  border-radius: var(--r-2);
  display: none;
}
.signup__alert.ok { display: block; background: rgba(51, 51, 102, 0.08); border: 1px solid var(--brand); color: var(--ink); }
.signup__alert.bad { display: block; background: var(--card); border: 1px solid var(--mute); color: var(--ink); }