/* nine.zero — Perspectives index (Paper: 9.0 New Site, "Perspectives"). Layout only;
   the shell (nav, footer, type, buttons, agent cursors) comes from site.css. */

/* ---------- Hero ---------- */
.phero { position: relative; overflow: hidden; padding: 112px 0 64px; }
.phero__art {
  position: absolute; top: -112px; right: calc(-1 * var(--np-gutter)); width: 1440px; height: 444px;
  pointer-events: none;
}
.phero .wrap { position: relative; display: flex; flex-direction: column; gap: 32px; }
.phero__eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--np-font-mono); font-size: 12px; line-height: 16px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--np-dark-muted);
}
.phero__eyebrow .slash { color: var(--np-lime); }
.phero h1 { font-size: 128px; line-height: 120px; letter-spacing: -0.02em; color: var(--np-dark-text); }
.phero__row { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.phero__lede { max-width: 640px; font-size: 18px; line-height: 30px; color: var(--np-dark-muted); }
.phero__tag { width: 280px; flex: none; font-size: 30px; line-height: 34px; letter-spacing: -0.02em; color: var(--np-dark-text); }

/* ---------- Featured piece ---------- */
.feature { padding: 64px 0; }
.feature .wrap { display: flex; align-items: center; gap: 80px; }
.feature__copy { width: 720px; flex: none; min-height: 420px; display: flex; flex-direction: column; justify-content: space-between; }
.feature__meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.feature__tags {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px;
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--np-text-2);
}
.feature__tags b { font-weight: 400; color: var(--np-ink); }
.feature__body { display: flex; flex-direction: column; gap: 18px; }
.feature__title { font-size: 56px; line-height: 58px; letter-spacing: -0.01em; color: var(--np-ink); }
.feature__title a:hover i { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.feature__desc { max-width: 640px; font-size: 16px; line-height: 26px; color: var(--np-text-2); }
.feature__foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 6px; }
.feature__by {
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--np-text-2);
}

.feature__card {
  width: 480px; flex: none; min-height: 420px;
  display: flex; flex-direction: column; gap: 24px;
  padding: 28px; border-radius: 16px;
  background: var(--np-ground); border: 1px solid var(--np-hair);
  transition: border-color .15s ease;
}
.feature__card:hover { border-color: var(--np-muted); }
.feature__fig { display: flex; flex-direction: column; gap: 24px; }
.feature__figlabel {
  font-family: var(--np-font-mono); font-size: 12px; line-height: 18px; letter-spacing: 0.12em;
  color: var(--np-text-2);
}
.feature__diagram { width: 100%; height: auto; max-width: 422px; }
.feature__diagram-label { font-family: var(--np-font-mono); font-size: 12px; }
.feature__cardfoot {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: auto; padding-top: 16px; border-top: 1px solid var(--np-hair);
  font-family: var(--np-font-mono); font-size: 12px; line-height: 18px;
  color: var(--np-text-2);
}

/* ---------- More perspectives ---------- */
.notes { padding: 48px 0 96px; }
.notes .wrap { position: relative; display: flex; flex-direction: column; gap: 24px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters a {
  display: inline-flex; align-items: center;
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--np-hair);
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--np-ink);
  transition: border-color .15s ease, background .15s ease;
}
.filters a:hover { border-color: var(--np-muted); background: var(--np-band); }
.filters a[aria-current] { background: #20242b; border-color: #20242b; color: #fffffe; }
.notes__head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-bottom: 16px; border-bottom: 1px solid var(--np-hair);
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--np-text-2);
}
.notes__head h2 { font: inherit; letter-spacing: inherit; }
.note { display: flex; align-items: flex-start; gap: 16px; padding: 32px 0; border-bottom: 1px solid var(--np-hair); }
.note__idx {
  width: 48px; flex: none; padding-top: 12px;
  font-family: var(--np-font-mono); font-size: 12px; line-height: 14px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--np-text-2);
}
.note__main { width: 720px; flex: none; display: flex; flex-direction: column; gap: 12px; }
.note__title { font-size: 44px; line-height: 48px; letter-spacing: 0; color: var(--np-ink); }
.note__title a:hover i { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.note__desc { max-width: 640px; font-size: 15px; line-height: 24px; color: var(--np-text-2); }
.note__cat {
  width: 176px; flex: none; padding-top: 14px;
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--np-ink);
}
.note__side { width: 288px; flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; padding-top: 14px; }
.note__date {
  font-family: var(--np-font-mono); font-size: 11px; line-height: 14px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--np-text-2);
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .phero h1 { font-size: 96px; line-height: 92px; }
  .feature .wrap { gap: 40px; }
  .feature__copy { width: auto; flex: 1 1 0; min-height: 0; gap: 40px; }
  .feature__card { width: 360px; min-height: 0; }
  .feature__title { font-size: 44px; line-height: 46px; }
  .note__main { width: auto; flex: 1 1 0; }
  .note__cat { width: 120px; }
  .note__side { width: 160px; }
}

@media (max-width: 900px) {
  .phero { padding: 64px 0 48px; }
  .phero .wrap { gap: 24px; }
  .phero h1 { font-size: 64px; line-height: 64px; }
  .phero__row { flex-direction: column; align-items: flex-start; gap: 24px; }
  .phero__tag { width: auto; font-size: 26px; line-height: 30px; }

  .feature { padding: 48px 0; }
  .phero__art { display: none; }
  .feature .wrap { flex-direction: column; align-items: stretch; gap: 32px; }
  .feature__copy { flex: none; gap: 24px; }
  .feature__meta { flex-wrap: wrap; }
  .feature__title { font-size: 40px; line-height: 42px; }
  .feature__title br { display: none; }
  .feature__card { width: 100%; }

  .notes { padding: 40px 0 64px; }
  .note { flex-wrap: wrap; gap: 12px 16px; padding: 24px 0; }
  .note__idx { width: auto; padding-top: 6px; }
  .note__main { width: 100%; flex: none; gap: 10px; }
  .note__title { font-size: 34px; line-height: 38px; }
  .note__cat { width: auto; padding-top: 0; }
  .note__side { width: auto; flex: 1 1 auto; flex-direction: row; align-items: center; justify-content: flex-end; gap: 16px; padding-top: 0; }

}

@media (max-width: 480px) {
  .phero h1 { font-size: 52px; line-height: 52px; }
  .feature__title { font-size: 34px; line-height: 36px; }
  .feature__card { padding: 20px; }
  .note__title { font-size: 30px; line-height: 34px; }
  .note__side { justify-content: space-between; }
}