/* =========================================================
   KESTREL — Website Stylesheet v2
   Built on the Kestrel Design System (Design-System-Build/).
   Same page structure/classes as v1 — only the visual language
   (palette mapping, type, radii, shadows, spacing) changes, so
   the two can be compared side by side.
   ========================================================= */

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Archivo:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  /* ── Approved Kestrel palette (from the Design System) ───── */
  --navy:        #2F364A;   /* k-navy-deep */
  --navy-mid:    #3A4152;   /* k-navy-mid */
  --violet:      #8A6BCD;   /* k-violet */
  --violet-dark: #6451B3;   /* k-indigo — primary accent in this system */
  --blue:        #2568D0;   /* k-royal */
  --grey:        #EDECEF;   /* k-mist */
  --grey-mid:    #CDD0DF;   /* k-ice */
  --angle-bg:    #EFEAF8;   /* k-violet-100 */
  --white:       #FFFFFF;
  --body:        #2F364A;
  --muted:       #6A7188;   /* k-gray-500 */

  /* Sharp & executive — design-system radii, not the old rounded set */
  --radius:      4px;       /* r-md — buttons, inputs */
  --radius-lg:   6px;       /* r-lg — cards, dialogs */

  --max-w:       1200px;    /* design-system container */
  --font:        'Archivo', system-ui, sans-serif;
  --font-display:'Space Grotesk', 'Archivo', system-ui, sans-serif;
  --font-mono:   'JetBrains Mono', ui-monospace, monospace;

  /* Low, tight shadows — never glowy (design-system effects.css) */
  --shadow:      0 1px 3px rgba(47,54,74,.08), 0 1px 2px rgba(47,54,74,.05);
  --shadow-lg:   0 8px 28px rgba(47,54,74,.14);

  --focus-ring:  #2568D0;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--body);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }

/* ── Navigation ─────────────────────────────────────────── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 14px 0;
  transition: background .18s ease, box-shadow .18s ease, padding .18s ease;
}
.site-nav.scrolled {
  background: rgba(237,236,239,.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--grey-mid);
  padding: 11px 0;
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.site-nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.site-nav__logo img { height: 28px; width: auto; display: block; }
.site-nav__tagline {
  flex: 1;
  text-align: center;
  padding: 0 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: rgba(255,255,255,.6);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-nav.scrolled .site-nav__tagline { color: var(--muted); }
.site-nav__cta {
  flex-shrink: 0;
  height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  background: var(--violet-dark);
  color: var(--white);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  transition: background .12s ease-out;
}
.site-nav__cta:hover { background: #57459E; }

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  background: var(--navy);
  padding: 148px 0 104px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -110px; right: -90px;
  width: 300px; height: 300px;
  background: var(--violet-dark);
  opacity: .22;
  transform: rotate(45deg);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -180px; left: 210px;
  width: 260px; height: 260px;
  background: var(--blue);
  opacity: .12;
  transform: rotate(45deg);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey-mid);
  margin-bottom: 28px;
}
.hero__h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: -.02em;
  margin-bottom: 24px;
}
.hero__sub {
  font-size: 17px;
  color: rgba(237,236,239,.75);
  line-height: 1.55;
  max-width: 540px;
  margin: 0 auto 44px;
}
.hero__form { max-width: 420px; margin: 0 auto; }
.hero__form-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 10px;
}
.hero__form input[type="email"] {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid #454D66;
  border-radius: var(--radius);
  background: rgba(255,255,255,.06);
  color: var(--white);
  outline: none;
  transition: border-color .12s ease-out, box-shadow .12s ease-out;
}
.hero__form input[type="email"]::placeholder { color: rgba(255,255,255,.38); }
.hero__form input[type="email"]:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 2px var(--navy), 0 0 0 4px var(--focus-ring);
}
.hero__note {
  font-size: 12px;
  color: rgba(237,236,239,.42);
  margin-top: 10px;
}

/* ── Shared button (design-system Button: primary variant) ─ */
.btn-primary {
  width: 100%;
  height: 42px;
  padding: 0 24px;
  background: var(--violet-dark);
  color: var(--white);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background .12s ease-out;
}
.btn-primary:hover { background: #57459E; }
.btn-primary:active { filter: brightness(.95); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary--light {
  background: var(--white);
  color: var(--violet-dark);
}
.btn-primary--light:hover { background: var(--grey); }

/* ── Form status ────────────────────────────────────────── */
.form-status {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  display: none;
}
.form-status.success { background: #3B3558; color: #D8CDF0; display: block; }
.form-status.error   { background: #462E31; color: #D98A90; display: block; }

/* ── Brief demo section ─────────────────────────────────── */
.brief-demo {
  padding: 80px 0 100px;
  background: var(--grey);
}
.brief-demo > .container { max-width: 780px; }

/* Document card — mimics the actual email brief */
.brief-doc {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--grey-mid);
}
.brief-doc__masthead {
  background: var(--grey);
  border-bottom: 1px solid var(--grey-mid);
  padding: 22px 40px;
  text-align: center;
}
.brief-doc__masthead img { height: 48px; width: auto; }
.brief-doc__disclaimer {
  background: var(--grey);
  padding: 8px 40px 14px;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  border-bottom: 1px solid var(--grey-mid);
}
.brief-doc__slotbar {
  background: var(--grey);
  border-bottom: 1px solid var(--grey-mid);
  padding: 12px 40px;
  text-align: center;
}
.brief-doc__tagline {
  font-size: 13px;
  color: var(--body);
  font-style: italic;
  margin-bottom: 4px;
}
.brief-doc__slot {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}
.brief-doc__section-hdr {
  padding: 20px 40px 0;
}
.brief-doc__section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--blue);
  border-bottom: 2px solid var(--blue);
  padding-bottom: 6px;
}

/* Individual brief items */
.brief-doc__item {
  display: flex;
  gap: 18px;
  padding: 20px 40px 24px;
  border-bottom: 1px solid var(--grey);
}
.brief-doc__item:last-of-type { border-bottom: none; }
.brief-doc__item-num {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-top: 2px;
}
.brief-doc__item-body { flex: 1; min-width: 0; }
.brief-doc__headline {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.4;
  margin-bottom: 12px;
  letter-spacing: -.01em;
}
.brief-doc__field { margin-bottom: 8px; }
.brief-doc__field-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 3px;
}
.brief-doc__field-text {
  font-size: 13px;
  color: var(--body);
  line-height: 1.55;
}
.brief-doc__angle {
  background: var(--angle-bg);
  border-left: 3px solid var(--violet-dark);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 10px 14px;
  margin-top: 10px;
}
.brief-doc__angle-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--violet-dark);
  margin-bottom: 4px;
}
.brief-doc__angle-text {
  font-size: 12px;
  color: var(--body);
  line-height: 1.55;
}

/* Blurred content — unreadable but shape/structure visible */
.blurred {
  filter: blur(5px);
  user-select: none;
  pointer-events: none;
}

/* Violet variant for section label (Watchpoints, AusTender) */
.brief-doc__section-label--violet {
  color: var(--violet-dark);
  border-color: var(--violet-dark);
}

/* Bullet lists for Watchpoints / AusTender sections */
.brief-doc__bullets {
  list-style: disc;
  padding: 10px 40px 18px 58px;
}
.brief-doc__bullet {
  font-size: 13px;
  color: var(--body);
  line-height: 1.55;
  margin-bottom: 7px;
}
.brief-doc__bullets--austender .brief-doc__bullet {
  font-size: 11px;
  font-family: var(--font-mono);
  list-style: none;
  margin-left: -18px;
}

/* Gate — gradient + inline CTA */
.brief-doc__gate {
  position: relative;
  background: var(--white);
}
.brief-doc__gate-fade {
  height: 80px;
  background: linear-gradient(to bottom, rgba(255,255,255,0), var(--white));
  margin-top: -80px;
  position: relative;
  z-index: 1;
}
.brief-doc__gate-cta {
  text-align: center;
  padding: 24px 40px 36px;
}
.gate__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}
.gate__h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 22px;
  letter-spacing: -.02em;
}
.gate__form {
  max-width: 380px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.gate__form input {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  color: var(--body);
  background: var(--white);
  outline: none;
  transition: border-color .12s ease-out, box-shadow .12s ease-out;
}
.gate__form input:focus { border-color: var(--focus-ring); box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--focus-ring); }
.gate__note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

/* ── Differentiators ────────────────────────────────────── */
.diffs {
  padding: 80px 0;
  background: var(--white);
}
.diffs__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--violet-dark);
  text-align: center;
  margin-bottom: 40px;
}
.diffs__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 360px));
  gap: 16px;
  justify-content: center;
}
.diff-item {
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: box-shadow .18s ease-out, transform .18s ease-out;
  text-align: center;
}
.diff-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-1px); }
.diff-item__label {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 10px;
  letter-spacing: -.01em;
}
.diff-item__text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.diff-item__tagline {
  font-size: 13px;
  color: var(--violet-dark);
  margin-top: 14px;
  line-height: 1.5;
  font-weight: 500;
}

/* ── Subscribe block ────────────────────────────────────── */
.subscribe-block {
  background: var(--navy);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.subscribe-block::before {
  content: '';
  position: absolute;
  top: -110px; right: -90px;
  width: 300px; height: 300px;
  background: var(--violet-dark);
  opacity: .18;
  transform: rotate(45deg);
  pointer-events: none;
}
.subscribe-block .container { position: relative; z-index: 1; }
.subscribe-block__h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.subscribe-block__sub {
  font-size: 15px;
  color: rgba(237,236,239,.68);
  line-height: 1.55;
  max-width: 460px;
  margin: 0 auto 44px;
}
.subscribe-block__form {
  max-width: 420px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.subscribe-block__form input {
  height: 42px;
  padding: 0 16px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid #454D66;
  border-radius: var(--radius);
  background: rgba(255,255,255,.06);
  color: var(--white);
  outline: none;
  transition: border-color .12s ease-out;
}
.subscribe-block__form input::placeholder { color: rgba(255,255,255,.35); }
.subscribe-block__form input:focus { border-color: var(--focus-ring); }
.subscribe-block__form .form-status.success { color: #D8CDF0; background: #3B3558; }
.subscribe-block__form .form-status.error   { color: #D98A90; background: #462E31; }
.subscribe-block__note {
  font-size: 12px;
  color: rgba(237,236,239,.4);
  margin-top: 12px;
}

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  background: var(--navy-mid);
  padding: 56px 0 36px;
  border-top: 1px solid #454D66;
  color: rgba(237,236,239,.65);
}
.site-footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 40px;
}
.site-footer__brand img { height: 26px; display: block; margin-bottom: 12px; }
.site-footer__tagline {
  font-size: 13px;
  color: rgba(237,236,239,.45);
  line-height: 1.6;
  max-width: 260px;
}
.site-footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.site-footer__nav a {
  font-size: 14px;
  color: rgba(237,236,239,.55);
  transition: color .12s ease-out;
}
.site-footer__nav a:hover { color: var(--white); }
.site-footer__bottom {
  border-top: 1px solid #454D66;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(237,236,239,.32);
}
.site-footer__bottom a { color: rgba(237,236,239,.45); transition: color .12s ease-out; }
.site-footer__bottom a:hover { color: var(--white); }

/* ── Unsubscribe page ───────────────────────────────────── */
.unsub-page {
  background: var(--grey);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 24px;
}
.unsub-logo { height: 32px; margin-bottom: 40px; }
.unsub-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--grey-mid);
  text-align: center;
}
.unsub-icon { font-size: 40px; margin-bottom: 20px; line-height: 1; }
.unsub-card h1 { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--navy); margin-bottom: 12px; letter-spacing: -.02em; }
.unsub-card p  { font-size: 14px; color: var(--muted); line-height: 1.6; margin-bottom: 32px; }
.unsub-form { display: flex; flex-direction: column; gap: 12px; }
.unsub-form input {
  height: 42px;
  padding: 0 16px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  color: var(--body);
  outline: none;
  transition: border-color .12s ease-out;
  background: var(--white);
}
.unsub-form input:focus { border-color: var(--focus-ring); }
.btn-danger {
  height: 42px;
  padding: 0 24px;
  background: #A8434B;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  color: var(--white);
  cursor: pointer;
  transition: filter .12s ease-out;
}
.btn-danger:hover { filter: brightness(.92); }
.btn-danger:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost {
  display: block;
  height: 42px;
  line-height: 40px;
  padding: 0 12px;
  text-align: center;
  background: transparent;
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--muted);
  cursor: pointer;
  text-decoration: none;
  transition: border-color .12s ease-out, color .12s ease-out;
}
.btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
.unsub-done { display: none; text-align: center; }
.unsub-done-icon { font-size: 44px; margin-bottom: 16px; }
.unsub-done h2 { font-family: var(--font-display); font-size: 21px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.unsub-done p  { font-size: 14px; color: var(--muted); margin-bottom: 24px; }

/* ── Footer modal trigger button ───────────────────────── */
.footer-modal-btn {
  background: none;
  border: none;
  padding: 0;
  font-size: 14px;
  font-family: var(--font);
  color: rgba(237,236,239,.55);
  cursor: pointer;
  transition: color .12s ease-out;
  text-align: left;
}
.footer-modal-btn:hover { color: var(--white); }

/* ── Contact modal ──────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30,35,49,.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, visibility .18s ease;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 16px 48px rgba(30,35,49,.22);
  border: 1px solid var(--grey-mid);
  transform: translateY(10px);
  transition: transform .2s cubic-bezier(.16,1,.3,1);
}
.modal-overlay.open .modal-card { transform: none; }
.modal-close {
  position: absolute;
  top: 16px; right: 18px;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: var(--radius);
  transition: background .12s ease-out, color .12s ease-out;
}
.modal-close:hover { background: var(--grey); color: var(--navy); }
.modal-title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
  letter-spacing: -.02em;
}
.modal-sub {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

/* Contact form fields */
.contact-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.contact-field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.contact-field label span { color: var(--violet-dark); }
.contact-field input,
.contact-field textarea {
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  color: var(--body);
  background: var(--white);
  outline: none;
  transition: border-color .12s ease-out, box-shadow .12s ease-out;
  width: 100%;
}
.contact-field input:focus,
.contact-field textarea:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--focus-ring);
}
.contact-field textarea { resize: vertical; min-height: 96px; }
.contact-field--challenge { margin-top: 4px; }
.contact-submit { margin-top: 6px; }

/* Contact success state */
.contact-done {
  text-align: center;
  padding: 24px 0 8px;
}
.contact-done__icon {
  width: 48px; height: 48px;
  background: #E9E5F5;
  color: var(--violet-dark);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  font-weight: 700;
  margin: 0 auto 18px;
}
.contact-done__h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.contact-done__p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
}

@media (max-width: 560px) {
  .modal-card { padding: 28px 22px; }
  .contact-grid { grid-template-columns: 1fr; }
}

/* ── Scroll reveal ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .26s cubic-bezier(.16,1,.3,1), transform .26s cubic-bezier(.16,1,.3,1);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 780px) {
  .hero { padding: 110px 0 72px; }
  .brief-doc__item { padding: 16px 24px 20px; gap: 12px; }
  .brief-doc__masthead { padding: 18px 24px; }
  .brief-doc__disclaimer { padding: 8px 24px 12px; }
  .brief-doc__slotbar { padding: 10px 24px; }
  .brief-doc__section-hdr { padding: 16px 24px 0; }
  .brief-doc__gate-cta { padding: 20px 24px 28px; }
  .diffs__grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .site-nav__tagline { display: none; }
  .site-footer__inner { flex-direction: column; gap: 28px; }
  .site-footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
  .unsub-card { padding: 36px 26px; }
  .hero__h1 { font-size: 34px; }
}

/* ── Brief archive ─────────────────────────────────────────────── */
.site-nav__btn {
  flex-shrink: 0;
  height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  margin-right: 10px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  transition: border-color .12s ease-out, color .12s ease-out, background .12s ease-out;
}
.site-nav__btn:hover { border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.06); }
.site-nav.scrolled .site-nav__btn { border-color: var(--grey-mid); color: var(--navy); }
.site-nav.scrolled .site-nav__btn:hover { border-color: var(--navy); background: var(--grey); }

.hero--compact { padding-bottom: 56px; }

.briefs-section { padding: 72px 0 64px; background: var(--grey); }
.briefs-section__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--violet-dark);
  margin: 0 0 10px;
  text-align: center;
}
.briefs-section__h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 32px);
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 10px;
  text-align: center;
  letter-spacing: -.02em;
}
.briefs-section__sub {
  color: var(--muted);
  text-align: center;
  margin: 0 0 36px;
}
.briefs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  max-width: 1060px;
  margin: 0 auto;
}
.briefs-grid--page { grid-template-columns: 1fr; max-width: 720px; }
.brief-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius-lg);
  padding: 20px 18px 16px;
  text-decoration: none;
  color: var(--body);
  box-shadow: var(--shadow);
  transition: box-shadow .12s ease-out, border-color .12s ease-out, transform .12s ease-out;
}
.brief-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--violet-dark);
  transform: translateY(-1px);
}
.brief-card--latest { border-top: 3px solid var(--violet-dark); }
.brief-card__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--violet-dark);
}
.brief-card__date {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.3;
}
.brief-card__cta {
  margin-top: auto;
  padding-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
}
.briefs-grid--page .brief-card { flex-direction: row; align-items: center; gap: 18px; }
.briefs-grid--page .brief-card__kicker { min-width: 120px; }
.briefs-grid--page .brief-card__date { flex: 1; }
.briefs-grid--page .brief-card__cta { margin-top: 0; padding-top: 0; }
.briefs-section__all { text-align: center; margin: 28px 0 0; }
.briefs-section__all a {
  color: var(--violet-dark);
  font-weight: 600;
  text-decoration: none;
}
.briefs-section__all a:hover { text-decoration: underline; }
.briefs-empty { color: var(--muted); text-align: center; grid-column: 1 / -1; }

@media (max-width: 640px) {
  .site-nav__btn { display: none; }
  .briefs-grid--page .brief-card { flex-direction: column; align-items: flex-start; gap: 6px; }
}