:root {
  
  --bg:            #ffffff;
  --bg-subtle:     #fafaf9;
  --bg-sunken:     #f5f5f4;
  --text:          #0c0a09;
  --text-2:        #57534e;
  --text-3:        #a8a29e;
  --line:          #e7e5e4;
  --line-strong:   #d6d3d1;

  
  --accent:        #2e6b4f;
  --accent-hover:  #245740;
  --accent-soft:   #edf4f0;
  --accent-line:   #cfe1d7;

  
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  
  --container: 1120px;
  --gutter: 24px;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --section-y: clamp(72px, 9vw, 132px);

  
  --shadow-sm: 0 1px 2px rgba(12, 10, 9, 0.04);
  --shadow:    0 1px 2px rgba(12, 10, 9, 0.04), 0 8px 24px -12px rgba(12, 10, 9, 0.10);
  --shadow-lg: 0 1px 2px rgba(12, 10, 9, 0.04), 0 24px 48px -20px rgba(12, 10, 9, 0.16);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}



*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;

  
  overflow-x: hidden;
  overflow-wrap: break-word;
  animation: page-enter 0.24s ease-out both;
}

body.is-leaving {
  opacity: 0;
  transition: opacity 0.16s ease-in;
}

@keyframes page-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}

img, svg, video, iframe { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button, input, textarea, select { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent-soft); color: var(--accent-hover); }



h1, h2, h3, h4 {
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.display {
  font-size: clamp(2.65rem, 6.2vw, 4.35rem);
  line-height: 1.04;
  letter-spacing: -0.042em;
  font-weight: 500;
}

.h1 { font-size: clamp(2.25rem, 4.6vw, 3.25rem); }
.h2 { font-size: clamp(1.85rem, 3.4vw, 2.6rem); }
.h3 { font-size: clamp(1.2rem, 1.8vw, 1.4rem); letter-spacing: -0.025em; }

.lede {
  font-size: clamp(1.075rem, 1.55vw, 1.235rem);
  line-height: 1.62;
  color: var(--text-2);
  letter-spacing: -0.014em;
  text-wrap: pretty;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
}

.muted { color: var(--text-2); }
.small { font-size: 0.9rem; }



.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 800px; }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(56px, 6vw, 88px); }
.section--subtle { background: var(--bg-subtle); }

.section-head {
  max-width: 660px;
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-head .h2 { margin-top: 18px; }
.section-head .lede { margin-top: 18px; }

.rule { height: 1px; background: var(--line); border: 0; }

.stack-sm > * + * { margin-top: 10px; }
.stack   > * + * { margin-top: 18px; }
.stack-lg > * + * { margin-top: 28px; }



.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-bd: var(--line-strong);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border: 1px solid var(--btn-bd);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease),
              color 0.18s var(--ease), transform 0.18s var(--ease),
              box-shadow 0.18s var(--ease);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  --btn-bg: var(--accent);
  --btn-fg: #fff;
  --btn-bd: var(--accent);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  --btn-bg: var(--accent-hover);
  --btn-bd: var(--accent-hover);
  box-shadow: var(--shadow);
}

.btn--ghost { --btn-bd: var(--line-strong); }
.btn--ghost:hover { --btn-bd: var(--text-3); background: var(--bg-subtle); }

.btn--sm { padding: 9px 17px; font-size: 0.875rem; }

.btn--light {
  --btn-bg: #fff;
  --btn-fg: var(--text);
  --btn-bd: transparent;
  box-shadow: var(--shadow-sm);
}
.btn--light:hover { --btn-bg: #fff; box-shadow: var(--shadow); }

.btn__arrow { transition: transform 0.22s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}


.link {
  color: var(--accent);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: inset 0 -1px 0 var(--accent-line);
  transition: box-shadow 0.18s var(--ease);
}
.link:hover { box-shadow: inset 0 -1px 0 var(--accent); }



.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.header__inner {
  height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  letter-spacing: -0.03em;
  font-size: 1.02rem;
  margin-right: auto;
}


.brand__mark {
  height: 30px;
  width: auto;
  flex: none;
  display: block;
  object-fit: contain;
}

.brand__suffix {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-left: 9px;
  margin-left: 3px;
  border-left: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 0.925rem;
  color: var(--text-2);
  transition: color 0.16s var(--ease), background 0.16s var(--ease);
}

.nav__link:hover { color: var(--text); background: var(--bg-sunken); }

.nav__link[aria-current="page"] { color: var(--text); font-weight: 500; }

.header__cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  place-items: center;
  cursor: pointer;
}

.nav-toggle__bars {
  position: relative;
  width: 16px;
  height: 10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.24s var(--ease), top 0.24s var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after  { top: 8.5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 4.25px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { top: 4.25px; transform: rotate(-45deg); }



.hero {
  padding-top: clamp(56px, 7vw, 92px);
  padding-bottom: clamp(64px, 8vw, 108px);
  position: relative;
  overflow: hidden;
}


.hero::before {
  content: "";
  position: absolute;
  top: -320px;
  right: -180px;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 107, 79, 0.07), transparent 65%);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.hero__title { margin-top: 22px; }
.hero__lede  { margin-top: 24px; max-width: 46ch; }
.hero__actions { margin-top: 34px; }

.stat__value {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  display: block;
}

.stat__label {
  font-size: 0.83rem;
  color: var(--text-2);
  margin-top: 3px;
  display: block;
}


.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    linear-gradient(150deg, var(--accent-soft) 0%, #f7f6f4 55%, #eceae7 100%);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portrait img.is-missing { display: none; }


.portrait.has-image .portrait__fallback { display: none; }

.portrait__fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 10px;
  justify-items: center;
  text-align: center;
  padding: 24px;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portrait__badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 15px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  font-size: 0.86rem;
}

.portrait__badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  flex: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}



.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px 32px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
              transform 0.2s var(--ease);
}

.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--text-3);
  display: block;
  margin-bottom: 22px;
}

.card__title { margin-bottom: 10px; }
.card__body { color: var(--text-2); font-size: 0.96rem; }

.card__list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--text-2);
}
.card__list li + li { margin-top: 8px; }

.card__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-line);
}


.steps {
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: 84px 1fr 1.35fr;
  gap: 32px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
  transition: background 0.2s var(--ease);
}

.step:hover { background: var(--bg-subtle); }

.step__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.step__body { color: var(--text-2); font-size: 0.97rem; }



.quote {
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.quote__text {
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  line-height: 1.42;
  letter-spacing: -0.028em;
  font-weight: 400;
  text-wrap: balance;
}

.quote__meta {
  margin-top: 26px;
  font-size: 0.88rem;
  color: var(--text-2);
}

.quote__mark {
  font-family: var(--font-mono);
  color: var(--accent-line);
  font-size: 2rem;
  line-height: 1;
  display: block;
  margin-bottom: 20px;
}



.cta {
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(44px, 6vw, 72px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% -10%, rgba(255,255,255,0.16), transparent 55%);
  pointer-events: none;
}

.cta > * { position: relative; }

.cta .eyebrow { color: rgba(255,255,255,0.72); }

.cta__title { margin-top: 18px; color: #fff; }

.cta__lede {
  margin: 18px auto 0;
  max-width: 52ch;
  color: rgba(255, 255, 255, 0.8);
}

.cta__actions { margin-top: 32px; justify-content: center; }

.cta .btn--ghost {
  --btn-fg: #fff;
  --btn-bd: rgba(255,255,255,0.34);
}
.cta .btn--ghost:hover { background: rgba(255,255,255,0.1); --btn-bd: rgba(255,255,255,0.55); }



.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 56px 40px;
  margin-top: var(--section-y);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}

.footer__list { list-style: none; padding: 0; }
.footer__list li + li { margin-top: 9px; }
.footer__list a {
  color: var(--text-2);
  font-size: 0.94rem;
  transition: color 0.16s var(--ease);
}
.footer__list a:hover { color: var(--text); }

.footer__bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-3);
}



.timeline {
  display: grid;
  grid-template-columns: 268px 1fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: start;
}


.timeline__rail {
  position: sticky;
  top: 128px;
  align-self: start;
}

.rail__year {
  font-family: var(--font-mono);
  font-size: clamp(3.6rem, 7vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  display: block;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
}

.rail__year.is-swapping { opacity: 0; transform: translateY(-8px); }

.rail__phase {
  margin-top: 16px;
  font-size: 0.95rem;
  color: var(--text-2);
  min-height: 3em;
  transition: opacity 0.28s var(--ease);
}

.rail__phase.is-swapping { opacity: 0; }

.rail__progress {
  margin-top: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.rail__progress span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.2s linear;
}

.rail__count {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}


.timeline__items {
  position: relative;
  padding-left: 42px;
  border-left: 1px solid var(--line);
}

.tl-item {
  position: relative;
  padding-bottom: clamp(48px, 6vw, 76px);
}

.tl-item:last-child { padding-bottom: 0; }


.tl-item::before {
  content: "";
  position: absolute;
  left: -47px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
              box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.tl-item.is-past::before {
  background: var(--accent-line);
  border-color: var(--accent-line);
}

.tl-item.is-active::before {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.18);
  box-shadow: 0 0 0 5px var(--accent-soft);
}

.tl-item__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tl-item__year {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
  transition: color 0.3s var(--ease);
}

.tl-item.is-active .tl-item__year { color: var(--accent); }

.tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text-3);
  background: var(--bg-subtle);
  white-space: nowrap;
}

.tag--education { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-line); }
.tag--career    { color: #8a5a2b; background: #fdf6ee; border-color: #f0e0cc; }
.tag--life      { color: #6b5f8a; background: #f4f2fa; border-color: #e2ddf0; }

.tl-item__title {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.tl-item__org {
  font-size: 0.92rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.tl-item__body {
  color: var(--text-2);
  font-size: 0.99rem;
  max-width: 60ch;
}


.creds { border-top: 1px solid var(--line); }

.cred {
  display: grid;
  grid-template-columns: 132px 1fr auto;
  gap: 28px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.cred__year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.cred__name { font-weight: 500; letter-spacing: -0.02em; }
.cred__org { font-size: 0.9rem; color: var(--text-2); margin-top: 3px; }
.cred__id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-3);
  white-space: nowrap;
}



.book__grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

.book__aside {
  position: sticky;
  top: 128px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: var(--bg-subtle);
}

.spec { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 20px; }

.spec__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.92rem;
  padding: 7px 0;
}

.spec__row dt { color: var(--text-2); }
.spec__row dd { font-weight: 500; margin: 0; text-align: right; }

.book__embed {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
  min-height: 620px;
}

#cal-inline { width: 100%; min-height: 620px; overflow: auto; }


.embed-fallback {
  min-height: 620px;
  display: grid;
  place-content: center;
  justify-items: center;
  text-align: center;
  gap: 14px;
  padding: 48px 32px;
}

.embed-fallback__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 4px;
}

.embed-fallback code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  padding: 3px 7px;
  border-radius: 6px;
}


.compare {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  align-items: stretch;
}

.compare__card {
  display: flex;
  flex-direction: column;
  padding: 30px 28px 32px;
}


.compare__card--accent {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.compare__card--accent:hover { border-color: var(--accent); }

.compare__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.compare__icon {
  width: 38px;
  height: 38px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--accent);
}

.compare__card--accent .compare__icon {
  background: #fff;
  border-color: var(--accent-line);
}

.compare__intro {
  color: var(--text-2);
  font-size: 0.96rem;
  margin-bottom: 4px;
}

.compare__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 12px;
}


.compare__block { margin-top: auto; }

.compare__block .spec { border-top-color: var(--line-strong); }

.compare__card--accent .spec,
.compare__card--accent .spec__row + .spec__row { border-color: var(--accent-line); }


.compare__note {
  margin: clamp(32px, 4vw, 48px) auto 0;
  max-width: 56ch;
  text-align: center;
  color: var(--text-2);
  font-size: 1rem;
}


.faq { border-top: 1px solid var(--line); }

.faq__item { border-bottom: 1px solid var(--line); }

.faq__q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-size: 1.03rem;
  font-weight: 500;
  letter-spacing: -0.022em;
}

.faq__icon {
  flex: none;
  width: 22px; height: 22px;
  position: relative;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  inset: 50% 6px;
  height: 1.5px;
  margin-top: -0.75px;
  background: var(--text-2);
  border-radius: 2px;
  transition: transform 0.24s var(--ease), background 0.2s var(--ease);
}
.faq__icon::after { transform: rotate(90deg); }

.faq__q[aria-expanded="true"] .faq__icon { border-color: var(--accent); background: var(--accent-soft); }
.faq__q[aria-expanded="true"] .faq__icon::before,
.faq__q[aria-expanded="true"] .faq__icon::after { background: var(--accent); }
.faq__q[aria-expanded="true"] .faq__icon::after { transform: rotate(0deg); }


.faq__a {
  overflow: hidden;
  transition: height 0.32s var(--ease);
}

.faq__a p {
  color: var(--text-2);
  font-size: 0.97rem;
  max-width: 68ch;
  padding-bottom: 24px;
}


.page-head {
  padding-top: clamp(48px, 6vw, 76px);
  padding-bottom: clamp(36px, 4vw, 56px);
}

.page-head__title { margin-top: 20px; }
.page-head__lede { margin-top: 20px; max-width: 60ch; }



.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible { opacity: 1; transform: none; }




@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; }

  .hero__portrait {
    max-width: 400px;
    width: 100%;
    margin-inline: auto;
  }

  .timeline { grid-template-columns: 1fr; gap: 32px; }

  .timeline__rail {
    position: sticky;
    top: 68px;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 18px;

    
    margin-inline: calc(var(--gutter) * -1);
    padding: 14px var(--gutter);

    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }

  .rail__year { font-size: 2.1rem; }
  .rail__phase { display: none; }
  .rail__progress { flex: 1; margin-top: 0; }
  .rail__count { margin-top: 0; }

  .book__grid { grid-template-columns: 1fr; }
  .book__aside { position: static; }

  .grid--3 { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }

  .cta { padding: clamp(38px, 6vw, 60px) clamp(24px, 5vw, 56px); }
}


@media (max-width: 860px) {
  
  .compare { grid-template-columns: 1fr; }
  .compare__block { margin-top: 0; }
}

@media (max-width: 700px) {
  .grid--3 { grid-template-columns: 1fr; }
}


@media (max-width: 760px) {
  body { font-size: 16px; }

  .nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    padding: 14px var(--gutter) 22px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    gap: 2px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s var(--ease), visibility 0s linear 0.18s;
  }

  .nav-toggle { display: grid; }

  
  .site-header.is-open .nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .site-header.is-open .nav__link { padding: 13px 12px; font-size: 1rem; }

  .site-header.is-open .header__cta {
    margin: 12px 0 0;
    justify-content: center;
    padding: 14px 20px;
    font-size: 1rem;
  }

  .grid--3, .grid--2 { grid-template-columns: 1fr; }

  .step { grid-template-columns: 1fr; gap: 8px; padding: 24px 0; }
  .step__num { color: var(--text-3); }

  .cred { grid-template-columns: 1fr; gap: 4px; }
  .cred__id { margin-top: 6px; }

  .footer__grid { grid-template-columns: 1fr; gap: 30px; }

  .timeline__items { padding-left: 26px; }
  .tl-item::before { left: -31px; }

  .portrait__badge { left: 12px; right: 12px; bottom: 12px; font-size: 0.82rem; }
}


@media (max-width: 640px) {
  
  .hero__actions .btn,
  .cta__actions .btn,
  .btn-row--stack .btn {
    flex: 1 1 100%;
  }

  .card { padding: 24px 21px 26px; }

  .cta {
    padding: 38px 22px;
    border-radius: 18px;
  }

  .quote__text { font-size: 1.22rem; line-height: 1.45; }
  .quote__mark { margin-bottom: 14px; }

  .stat__value { font-size: 1.3rem; }
  .rail__year { font-size: 1.85rem; }
  .timeline__rail { gap: 14px; }

  .spec__row {
    flex-direction: column;
    gap: 1px;
    padding: 9px 0;
  }
  .spec__row dd { text-align: left; }

  .book__embed { min-height: 520px; }
  #cal-inline { min-height: 520px; }

  .embed-fallback {
    min-height: 440px;
    padding: 40px 22px;
  }

  .faq__q { padding: 20px 0; font-size: 0.99rem; gap: 14px; }

  .compare__card { padding: 24px 21px 26px; }
  .compare__icon { width: 34px; height: 34px; }

  .site-footer { padding-block: 44px 32px; }
  .footer__bottom { flex-direction: column; gap: 8px; }

  .portrait { aspect-ratio: 3 / 4; }
}


@media (max-width: 400px) {
  :root { --gutter: 18px; }

  .brand__suffix { display: none; }
  .brand { font-size: 0.97rem; }
  .brand__mark { height: 27px; }

  .rail__count { display: none; }

  .tl-item__head { gap: 9px; }

  .btn { padding: 12px 18px; }
}



@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .cta, .nav-toggle { display: none; }
  .reveal { opacity: 1; transform: none; }
}