/* ═══════════════════════════════════════════════════════════
   BanLynk — banlynk.net
   © 2026 cxxiix. All rights reserved.
   ═══════════════════════════════════════════════════════════ */

/* ── 1. Tokens ─────────────────────────────────────────── */
:root {
  /* color */
  --bg:          #0a0908;
  --bg-elev:     #121110;
  --bg-deeper:   #050403;
  --ink:         #ece6d6;
  --ink-dim:     #8a8478;
  --ink-faint:   #4a4640;
  --ink-ghost:   rgba(236,230,214,0.10);
  --line:        rgba(236,230,214,0.08);
  --line-strong: rgba(236,230,214,0.18);
  --accent:      #c9a96e;
  --alert:       #c2553b;

  /* type */
  --serif: 'Fraunces', 'Times New Roman', Georgia, serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;
  --sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, sans-serif;

  /* motion */
  --ease:     cubic-bezier(0.65, 0, 0.35, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.7, 0, 0.84, 0);

  /* grid */
  --grid-max: 1280px;
  --gutter:   clamp(20px, 4vw, 56px);

  /* sizing */
  --nav-h: 76px;
  --r-sm: 2px;
  --r-md: 4px;
}

/* ── 2. Reset ──────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@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; scroll-behavior: auto !important; } }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
  cursor: auto;
}
body.has-cursor,
body.has-cursor button,
body.has-cursor a {
  cursor: none;
}
@media (hover: none), (pointer: coarse) {
  body { cursor: auto; }
  .cursor { display: none !important; }
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--ink); color: var(--bg); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deeper); }
::-webkit-scrollbar-thumb { background: var(--ink-faint); border: 2px solid var(--bg-deeper); }
::-webkit-scrollbar-thumb:hover { background: var(--ink-dim); }

:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

/* ── 3. Typography ─────────────────────────────────────── */
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }
.mono--dim { color: var(--ink-dim); }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.eyebrow em { color: var(--ink); font-style: normal; font-weight: 500; }
.eyebrow__dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(201,169,110,0.12);
  animation: pulse 2.4s var(--ease) infinite;
}
.eyebrow__dot--alert { background: var(--alert); box-shadow: 0 0 0 4px rgba(194,85,59,0.16); }
.eyebrow__sep { color: var(--ink-faint); }
.eyebrow__num { color: var(--ink); font-weight: 500; }
.eyebrow--center { justify-content: center; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(0.85); opacity: 0.7; }
}

/* section heads share form */
.section__head { margin-bottom: clamp(48px, 7vw, 96px); }
.section__head--center { text-align: center; }
.section__head--center .eyebrow { justify-content: center; }
.section__head .eyebrow { margin-bottom: 20px; }
.section__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-variation-settings: 'opsz' 80, 'SOFT' 30;
  max-width: 18ch;
}
.section__head--center .section__title { margin-inline: auto; }
.section__title em {
  font-style: italic;
  color: var(--ink-dim);
  font-variation-settings: 'opsz' 80, 'SOFT' 80;
}
.section__title > span { display: block; }


/* ── 4. Body overlays ──────────────────────────────────── */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.6 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.vignette {
  position: fixed; inset: 0; pointer-events: none; z-index: 998;
  background:
    radial-gradient(ellipse at 50% 0%,  rgba(0,0,0,0) 40%, rgba(0,0,0,0.45) 100%),
    radial-gradient(ellipse at 50% 100%, rgba(0,0,0,0) 40%, rgba(0,0,0,0.4) 100%);
}


/* ── 5. Cursor ─────────────────────────────────────────── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate3d(-100px,-100px,0);
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.cursor__dot {
  position: absolute;
  top: -4px; left: -4px;
  width: 8px; height: 8px;
  background: var(--ink);
  border-radius: 50%;
  transition: opacity 0.2s, transform 0.2s var(--ease);
  box-shadow: 0 0 0 5px rgba(236,230,214,0.12);
  animation: pulse 2.2s var(--ease) infinite;
}
.cursor__ring {
  position: absolute;
  top: -18px; left: -18px;
  width: 36px; height: 36px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  transition: width 0.3s var(--ease), height 0.3s var(--ease),
              top 0.3s var(--ease), left 0.3s var(--ease),
              opacity 0.2s, border-color 0.3s;
  opacity: 0.7;
}
.cursor.is-hover .cursor__ring {
  width: 60px; height: 60px;
  top: -30px; left: -30px;
  opacity: 1;
  border-color: var(--ink);
}
.cursor.is-hover .cursor__dot { transform: scale(0); }
.cursor.is-click .cursor__ring { transform: scale(0.85); }
.cursor.is-visible { opacity: 1; }


/* ── 6. Loader ─────────────────────────────────────────── */
.loader {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: grid; place-items: center;
  transition: opacity 0.7s var(--ease-out), visibility 0s 0.8s;
}
body:not(.is-loading) .loader { opacity: 0; visibility: hidden; }

.loader__inner { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.loader__mark { width: 36px; height: 72px; color: var(--ink); }
.loader__link { transform-origin: 30px 60px; animation: loaderLink 1.3s var(--ease-out) infinite; opacity: 0; }
.loader__link:nth-child(1) { animation-delay: 0.00s; }
.loader__link:nth-child(2) { animation-delay: 0.10s; }
.loader__link:nth-child(3) { animation-delay: 0.20s; }
.loader__link:nth-child(4) { animation-delay: 0.30s; }
@keyframes loaderLink {
  0%   { opacity: 0; transform: translateY(-6px); }
  40%  { opacity: 1; transform: translateY(0); }
  80%  { opacity: 1; }
  100% { opacity: 0.15; }
}
.loader__bar {
  width: 140px; height: 1px;
  background: var(--line);
  overflow: hidden;
  position: relative;
}
.loader__bar span {
  position: absolute; inset: 0;
  background: var(--ink);
  transform: translateX(-100%);
  animation: loaderBar 1.3s var(--ease) infinite;
}
@keyframes loaderBar {
  0%   { transform: translateX(-100%); }
  50%  { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}


/* ── 7. Nav ────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 22px var(--gutter);
  z-index: 100;
  transition: background 0.4s var(--ease), backdrop-filter 0.4s, border-color 0.4s, padding 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10,9,8,0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
  padding-top: 14px; padding-bottom: 14px;
}

.nav__brand {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-variation-settings: 'opsz' 14, 'SOFT' 30;
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  transition: opacity 0.3s;
  justify-self: start;
}
.nav__brand:hover { opacity: 0.85; }
.nav__brand em {
  font-style: italic;
  color: var(--ink);
  font-variation-settings: 'opsz' 14, 'SOFT' 100;
  letter-spacing: -0.015em;
}

.nav__links { display: flex; gap: 36px; justify-self: center; }
.nav__link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  position: relative;
  padding: 6px 0;
  transition: color 0.3s;
}
.nav__link span { color: var(--ink-faint); font-size: 9px; }
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--ink);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }

.nav__link--mobile { display: none; }
.nav__link--cta { color: var(--ink); }

.nav__right {
  display: flex; align-items: center; gap: 10px;
  justify-self: end;
}

.nav__chat {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 14px 11px 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  position: relative;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  will-change: transform;
}
.nav__chat svg { width: 14px; height: 14px; transition: transform 0.4s var(--ease-out); }
.nav__chat:hover { color: var(--ink); border-color: var(--ink); }
.nav__chat:hover svg { transform: rotate(-6deg) scale(1.08); }
.nav__chat-pill {
  font-size: 8px;
  letter-spacing: 0.18em;
  padding: 2px 5px;
  background: var(--accent);
  color: var(--bg);
  margin-left: 2px;
  line-height: 1;
}

.nav__cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  position: relative;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  will-change: transform;
}
.nav__cta:hover { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.nav__cta svg { width: 14px; height: 14px; transition: transform 0.4s var(--ease-out); }
.nav__cta:hover svg { transform: translateX(4px); }

.nav__burger { display: none; width: 32px; height: 32px; flex-direction: column; gap: 6px; align-items: center; justify-content: center; }
.nav__burger span { width: 18px; height: 1px; background: var(--ink); transition: transform 0.3s, opacity 0.3s; }
.nav.is-menu-open .nav__burger span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav.is-menu-open .nav__burger span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }


/* ── 8. Buttons ────────────────────────────────────────── */
.btn {
  --pad-x: 22px;
  --pad-y: 14px;
  display: inline-flex; align-items: center; gap: 12px;
  padding: var(--pad-y) var(--pad-x);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  color: var(--ink);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.5s var(--ease-out);
  will-change: transform;
}
.btn__bg {
  position: absolute; inset: 0;
  background: var(--ink);
  transform: translateY(101%);
  transition: transform 0.55s var(--ease-out);
  z-index: -1;
}
.btn:hover { color: var(--bg); }
.btn:hover .btn__bg { transform: translateY(0); }
.btn__icon { width: 16px; height: 16px; transition: transform 0.5s var(--ease-out); }
.btn:hover .btn__icon { transform: translateX(5px); }
.btn__label { display: inline-block; transition: transform 0.5s var(--ease-out); }

.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary .btn__bg { background: var(--bg); transform: translateY(101%); }
.btn--primary:hover { color: var(--ink); border-color: var(--ink); }
.btn--primary:hover .btn__bg { transform: translateY(0); }

.btn--ghost { background: transparent; }

.btn--xl {
  --pad-x: 32px;
  --pad-y: 22px;
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  letter-spacing: 0.2em;
}
.btn--xl .btn__bg { background: var(--bg); }
.btn--xl:hover { color: var(--ink); }
.btn--xl .btn__icon { width: 20px; height: 20px; }


/* ── 9. Hero ───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 60px) var(--gutter) 80px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  color: var(--ink-faint);
  z-index: 0;
}
.hero__waves {
  width: 110%; height: 110%;
  position: absolute; top: -5%; left: -5%;
  animation: drift 18s linear infinite;
}
@keyframes drift {
  from { transform: translateX(0); }
  to   { transform: translateX(-2%); }
}

.hero__inner {
  position: relative; z-index: 1;
  width: 100%;
  max-width: var(--grid-max);
  text-align: center;
}

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(64px, 11vw, 168px);
  line-height: 0.94;
  letter-spacing: -0.035em;
  margin: 28px 0 36px;
  font-variation-settings: 'opsz' 144, 'SOFT' 50;
}
.hero__line { display: block; }
.hero__line--outline {
  -webkit-text-stroke: 1px var(--ink);
  color: transparent;
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 100;
  letter-spacing: -0.025em;
}
.hero__line--solid {
  color: var(--ink);
  font-variation-settings: 'opsz' 144, 'SOFT' 40;
}
.hero__title .word { display: inline-block; }
.hero__title .word > span {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em);
  transition: opacity 0.7s var(--ease-out), transform 0.9s var(--ease-out);
}
.hero__title .space { display: inline-block; width: 0.3em; }
body:not(.is-loading) .hero__title .word > span { opacity: 1; transform: translateY(0); }
body:not(.is-loading) .hero__title .hero__line--outline .word > span { transition-delay: calc(var(--i, 0) * 25ms + 200ms); }
body:not(.is-loading) .hero__title .hero__line--solid   .word > span { transition-delay: calc(var(--i, 0) * 25ms + 600ms); }

.hero__lede {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 50ch;
  margin: 0 auto 40px;
  font-variation-settings: 'opsz' 14, 'SOFT' 60;
}
.hero__lede em { color: var(--ink); font-style: italic; }

.hero__actions {
  display: inline-flex; gap: 14px;
  flex-wrap: wrap; justify-content: center;
}

.hero__scroll {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-dim);
  z-index: 2;
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--ink-dim) 30%, var(--ink-dim) 70%, transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: '';
  position: absolute; left: 0; top: 0;
  width: 100%; height: 30%;
  background: var(--ink);
  animation: scrollHint 2.2s var(--ease) infinite;
}
.hero__scroll-label { opacity: 0.7; }
.hero__scroll:hover .hero__scroll-label { opacity: 1; color: var(--ink); }
@keyframes scrollHint {
  0%   { transform: translateY(-100%); }
  50%, 100% { transform: translateY(333%); }
}

.hero__rail {
  position: absolute;
  top: 50%; right: clamp(20px, 4vw, 60px);
  transform: translateY(-50%);
  color: var(--ink-faint);
  width: 24px; height: 320px;
  opacity: 0;
  transition: opacity 1.2s var(--ease) 1.4s;
  transform-origin: center center;
  animation: railSway 9s var(--ease) infinite;
}
body:not(.is-loading) .hero__rail { opacity: 0.55; }
.hero__rail svg { width: 100%; height: 100%; }
@media (max-width: 900px) { .hero__rail { display: none; } }

@keyframes railSway {
  0%, 100% { transform: translateY(-50%) rotate(0deg); }
  33% { transform: translateY(-51%) rotate(0.6deg); }
  66% { transform: translateY(-49%) rotate(-0.5deg); }
}

.hero__meta {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.6;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.8s 1.6s;
}
body:not(.is-loading) .hero__meta { opacity: 1; }
.hero__meta--tl { top: calc(var(--nav-h) + 30px); left: var(--gutter); }
.hero__meta--br { bottom: 36px; right: var(--gutter); text-align: right; }
.hero__meta .mono--dim { color: var(--ink-faint); }
@media (max-width: 700px) { .hero__meta { display: none; } }


/* ── 10. Manifesto ─────────────────────────────────────── */
.manifest {
  padding: clamp(100px, 14vw, 200px) var(--gutter);
  max-width: var(--grid-max);
  margin: 0 auto;
}
.manifest .eyebrow { margin-bottom: 40px; }
.manifest__pull {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 18ch;
  margin-bottom: 36px;
  font-variation-settings: 'opsz' 80, 'SOFT' 40;
}
.manifest__pull em {
  font-style: italic;
  color: var(--ink-dim);
  font-variation-settings: 'opsz' 80, 'SOFT' 100;
}
.manifest__body {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(18px, 1.4vw, 22px);
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 56ch;
  font-variation-settings: 'opsz' 14, 'SOFT' 60;
}
.manifest__body strong { color: var(--ink); font-weight: 400; }

.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
  position: relative;
  z-index: 2;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 34s linear infinite;
}
.marquee__track:hover { animation-play-state: paused; }
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 0 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  white-space: nowrap;
}
.marquee__item--accent { color: var(--accent); }
.marquee__sep {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--ink-faint);
  flex-shrink: 0;
}


/* ── 11. Features ──────────────────────────────────────── */
.features {
  padding: clamp(80px, 10vw, 140px) var(--gutter);
  max-width: var(--grid-max);
  margin: 0 auto;
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.feature {
  padding: 44px 36px 52px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: background 0.5s var(--ease-out);
}
.feature::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(236,230,214,0.018) 100%);
  opacity: 0;
  transition: opacity 0.5s var(--ease-out);
  pointer-events: none;
}
.feature:hover::before { opacity: 1; }
.feature::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.7s var(--ease-out);
}
.feature:hover::after { transform: scaleX(1); }

/* lead feature — F·01 AI moderation — slightly emphasised */
.feature--lead {
  background: linear-gradient(180deg, rgba(201,169,110,0.04) 0%, transparent 60%);
}
.feature--lead .feature__code { color: var(--accent); }
.feature--lead .feature__icon { color: var(--ink); }
.feature--lead::before { background: linear-gradient(180deg, rgba(201,169,110,0.06) 0%, transparent 100%); }

.feature__code {
  display: block;
  color: var(--ink-faint);
  margin-bottom: 36px;
  transition: color 0.4s;
}
.feature:hover .feature__code { color: var(--accent); }

.feature__icon {
  width: 28px; height: 28px;
  color: var(--ink);
  margin-bottom: 28px;
  transition: transform 0.5s var(--ease-out);
}
.feature:hover .feature__icon { transform: rotate(-4deg) scale(1.08); }

.feature__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  color: var(--ink);
  font-variation-settings: 'opsz' 24, 'SOFT' 50;
}
.feature__body {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-dim);
  max-width: 36ch;
}

@media (max-width: 900px) { .features__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features__grid { grid-template-columns: 1fr; } .feature { padding: 36px 24px 44px; } }


/* ── 12. How it works ──────────────────────────────────── */
.how {
  padding: clamp(100px, 12vw, 180px) var(--gutter);
  max-width: var(--grid-max);
  margin: 0 auto;
  position: relative;
}
.steps {
  list-style: none;
  display: grid;
  gap: clamp(48px, 7vw, 84px);
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  align-items: start;
  padding-left: 0;
}
.step__head {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
  position: relative;
}
.step__head::after {
  content: '';
  position: absolute;
  left: 0; bottom: -1px;
  width: 64px; height: 1px;
  background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.9s var(--ease-out) 0.2s;
}
.step.is-in .step__head::after { transform: scaleX(1); }

.step__num {
  color: var(--ink-faint);
  font-size: 12px;
  letter-spacing: 0.2em;
  transition: color 0.4s;
}
.step.is-in .step__num { color: var(--accent); }
.step__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-variation-settings: 'opsz' 30, 'SOFT' 40;
}
.step__body {
  grid-column: 2;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-dim);
  max-width: 52ch;
}

.how__chain {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 24px; height: 600px;
  color: var(--ink-faint);
  opacity: 0.5;
  z-index: 1;
  display: none;
  pointer-events: none;
}
.how__chain svg { width: 100%; height: 100%; }
.how__link { opacity: 0; transition: opacity 0.6s var(--ease-out); }
.how.is-in .how__link { opacity: 1; transition-delay: calc(var(--i, 0) * 60ms); }

@media (min-width: 1100px) { .how__chain { display: block; left: calc(50% - 460px); transform: translateY(-50%); } }


/* ── 13. CTA ───────────────────────────────────────────── */
.cta {
  padding: clamp(120px, 16vw, 220px) var(--gutter);
  text-align: center;
  position: relative;
  border-top: 1px solid var(--line);
}
.cta .eyebrow { margin-bottom: 28px; justify-content: center; }
.cta__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 8vw, 112px);
  line-height: 0.96;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  font-variation-settings: 'opsz' 144, 'SOFT' 50;
}
.cta__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-dim);
  margin-bottom: 48px;
  font-variation-settings: 'opsz' 14, 'SOFT' 100;
}


/* ── 14. Footer ────────────────────────────────────────── */
.foot {
  padding: 60px var(--gutter) 32px;
  border-top: 1px solid var(--line);
  position: relative;
}
.foot__wm {
  font-family: var(--serif);
  font-size: clamp(80px, 14vw, 200px);
  line-height: 1;
  letter-spacing: -0.04em;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-strong);
  margin-bottom: 24px;
  pointer-events: none;
  user-select: none;
  font-variation-settings: 'opsz' 144, 'SOFT' 60;
}
.foot__wm em {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 100;
}

.foot__mid {
  display: flex; justify-content: center;
  margin: 16px 0 60px;
  color: var(--ink-faint);
}
.foot__chain { width: 120px; height: 16px; }

.foot__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.foot__label { color: var(--ink-faint); margin-bottom: 18px; }
.foot__col ul { list-style: none; display: grid; gap: 8px; }
.foot__col li { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); }
.foot__col a { color: var(--ink-dim); transition: color 0.3s; position: relative; }
.foot__col a:hover { color: var(--ink); }

.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-dim); margin-right: 6px; vertical-align: 1px; }
.dot--ok { background: #5cb56e; box-shadow: 0 0 0 3px rgba(92,181,110,0.18); }

.foot__base {
  display: flex; justify-content: space-between; gap: 20px;
  padding-top: 28px;
  flex-wrap: wrap;
}

@media (max-width: 700px) {
  .foot__cols { grid-template-columns: 1fr; gap: 32px; padding: 32px 0; }
  .foot__base { flex-direction: column; align-items: flex-start; gap: 8px; }
}


/* ── 15. Reveal animation ──────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: translateY(0); }

[data-split-lines] {
  display: block;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
[data-split-lines]:nth-child(2) { transition-delay: 0.12s; }
.is-in [data-split-lines],
.section__head.is-in [data-split-lines] { opacity: 1; transform: translateY(0); }


/* ── 16. Error page ────────────────────────────────────── */
.page--error main.error {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 80px) var(--gutter) 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 32px;
  max-width: var(--grid-max);
  margin: 0 auto;
}
.error__chain {
  color: var(--ink);
  width: clamp(240px, 32vw, 380px);
  margin: 12px 0 24px;
}
.error__chain-snap { animation: snapShake 3s var(--ease) infinite; transform-origin: center; }
@keyframes snapShake {
  0%, 90%, 100% { transform: translateX(0); }
  92% { transform: translateX(-2px) rotate(-2deg); }
  94% { transform: translateX(2px)  rotate(2deg); }
  96% { transform: translateX(-1px) rotate(-1deg); }
}
.error__chain-left  { animation: chainLeft  4s var(--ease) infinite; transform-origin: 0% 50%; }
.error__chain-right { animation: chainRight 4s var(--ease) infinite; transform-origin: 100% 50%; }
@keyframes chainLeft  { 0%,100%{transform:rotate(0)} 50%{transform:rotate(-1.2deg)} }
@keyframes chainRight { 0%,100%{transform:rotate(0)} 50%{transform:rotate(1.2deg)} }

.error__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(56px, 10vw, 132px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-variation-settings: 'opsz' 144, 'SOFT' 50;
}
.error__title .hero__line { display: block; }

.error__body {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(16px, 1.3vw, 19px);
  color: var(--ink-dim);
  max-width: 52ch;
  margin: 0 auto;
  font-variation-settings: 'opsz' 14, 'SOFT' 60;
}

.error__actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }
.error__meta { margin-top: 24px; display: inline-flex; gap: 12px; }

.nav--minimal { grid-template-columns: 1fr auto; }
.nav__cta--small { padding: 9px 16px; font-size: 10px; }
.foot--minimal { padding: 32px var(--gutter); text-align: center; border-top: 1px solid var(--line); }


/* ── 17. Devtools-detected overlay ─────────────────────── */
.tamper {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 99999;
  display: none;
  place-items: center;
  padding: var(--gutter);
}
.tamper.is-open { display: grid; }
.tamper__box {
  text-align: center;
  max-width: 480px;
  display: grid;
  gap: 20px;
}
.tamper__icon {
  width: 56px; height: 56px;
  margin: 0 auto 8px;
  color: var(--alert);
}
.tamper h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 36px;
  font-variation-settings: 'opsz' 60, 'SOFT' 50;
}
.tamper p { color: var(--ink-dim); font-size: 14px; }


/* ── 17b. Intelligence (AI) section ───────────────────── */
.ai {
  padding: clamp(100px, 14vw, 200px) var(--gutter);
  max-width: var(--grid-max);
  margin: 0 auto;
  position: relative;
}
.ai__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
@media (max-width: 1000px) { .ai__split { grid-template-columns: 1fr; } }

.ai__copy { max-width: 56ch; }
.ai__lede {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 22px;
  font-variation-settings: 'opsz' 40, 'SOFT' 50;
}
.ai__lede em {
  font-style: italic;
  color: var(--ink-dim);
  font-variation-settings: 'opsz' 40, 'SOFT' 100;
}
.ai__body {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.65;
  color: var(--ink-dim);
  margin-bottom: 40px;
  font-variation-settings: 'opsz' 14, 'SOFT' 60;
}
.ai__body em { color: var(--ink); font-style: italic; }

.ai__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 0 0 36px;
}
.ai__stat {
  padding: 22px 16px 18px;
  border-right: 1px solid var(--line);
  position: relative;
}
.ai__stat:last-child { border-right: 0; }
.ai__stat-num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variation-settings: 'opsz' 60, 'SOFT' 40;
  margin-bottom: 6px;
}
.ai__stat-num span {
  font-size: 0.55em;
  color: var(--ink-dim);
  font-variation-settings: 'opsz' 14, 'SOFT' 60;
  letter-spacing: 0;
  margin-left: 2px;
}
.ai__stat-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.pill--privacy {
  display: inline-block;
  padding: 2px 7px;
  margin-left: 4px;
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(201,169,110,0.35);
  background: rgba(201,169,110,0.07);
  border-radius: 2px;
  vertical-align: 2px;
}

.sovereignty {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 36px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  background: rgba(201,169,110,0.04);
  max-width: 520px;
  position: relative;
  overflow: hidden;
}
.sovereignty::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(201,169,110,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.sovereignty__icon {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
  position: relative;
  z-index: 1;
}
.sovereignty__text {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.7;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  position: relative;
  z-index: 1;
}
.sovereignty__text strong {
  color: var(--ink);
  font-weight: 500;
}

.ai__cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.ai__cta-note { letter-spacing: 0.1em; }

/* Terminal-style demo panel ───────────────────────────── */
.ai__demo {
  position: relative;
}
.ai__demo-frame {
  background: linear-gradient(180deg, #0d0c0b 0%, #0a0908 100%);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6);
  position: relative;
}
.ai__demo-frame::before {
  /* subtle scanline overlay */
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(236,230,214,0.02) 0px, rgba(236,230,214,0.02) 1px, transparent 1px, transparent 3px);
  opacity: 0.5;
  z-index: 1;
}
.ai__demo-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.012);
  position: relative;
  z-index: 2;
}
.ai__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--ink-faint);
}
.ai__dot:nth-child(1) { background: #c2553b; }
.ai__dot:nth-child(2) { background: #d4a64a; }
.ai__dot:nth-child(3) { background: #5cb56e; }
.ai__demo-title {
  margin-left: 8px;
  color: var(--ink-dim);
  letter-spacing: 0.14em;
}
.ai__demo-pulse {
  margin-left: auto;
  width: 6px; height: 6px; border-radius: 50%;
  background: #5cb56e;
  box-shadow: 0 0 0 4px rgba(92,181,110,0.18);
  animation: pulse 1.8s var(--ease) infinite;
}

.ai__demo-body {
  margin: 0;
  padding: 20px 18px;
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--ink);
  white-space: pre;
  overflow-x: auto;
  position: relative;
  z-index: 2;
  letter-spacing: 0;
  text-transform: none;
  font-family: var(--mono);
}
.ai__line { display: block; opacity: 0; animation: aiLineIn 0.5s var(--ease-out) forwards; }
.ai__demo[data-reveal].is-in .ai__line { animation-delay: calc(var(--i, 0) * 0.18s); }
.ai__demo .ai__line:nth-child(1) { --i: 0; }
.ai__demo .ai__line:nth-child(2) { --i: 1; }
.ai__demo .ai__line:nth-child(3) { --i: 2; }
.ai__demo .ai__line:nth-child(4) { --i: 3; }
.ai__demo .ai__line:nth-child(5) { --i: 4; }
.ai__demo .ai__line:nth-child(6) { --i: 5; }
.ai__demo .ai__line:nth-child(7) { --i: 6; }
.ai__demo .ai__line:nth-child(8) { --i: 7; }
.ai__demo .ai__line:nth-child(9) { --i: 8; }
@keyframes aiLineIn {
  0%   { opacity: 0; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}
.ai__line--indent { color: var(--ink-dim); padding-left: 14px; }

.ai__t   { color: var(--ink-faint); margin-right: 6px; }
.ai__lvl {
  display: inline-block;
  min-width: 52px;
  padding: 1px 6px;
  margin-right: 8px;
  border: 1px solid currentColor;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  border-radius: 2px;
  vertical-align: 1px;
}
.ai__lvl--info   { color: #6aa3d4; }
.ai__lvl--ok     { color: #5cb56e; }
.ai__lvl--warn   { color: #d4a64a; }
.ai__lvl--act    { color: #c2553b; }
.ai__lvl--case   { color: #c9a96e; }
.ai__lvl--reason { color: var(--ink-faint); }

.ai__caret {
  display: inline-block;
  margin-left: 4px;
  width: 6px;
  color: var(--ink);
  animation: caret 1s steps(2) infinite;
}
@keyframes caret { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.ai__demo-caption {
  text-align: right;
  margin-top: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
}

body.is-ai-demo-active .ai__line {
  opacity: 0;
  animation: aiLineIn 0.5s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 0.18s);
}


/* ── 17c. Footer surface-pill ─────────────────────────── */
.foot__pill {
  display: inline-block;
  padding: 1px 6px;
  margin-left: 6px;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--bg);
  background: var(--accent);
  border-radius: 2px;
  vertical-align: 1px;
}


/* ── 18. Responsive nav ────────────────────────────────── */
@media (max-width: 900px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav__links {
    position: fixed; top: 0; right: 0;
    width: min(80vw, 360px); height: 100vh;
    background: var(--bg-elev);
    border-left: 1px solid var(--line);
    flex-direction: column;
    justify-content: center;
    padding: 80px 40px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    justify-self: end;
  }
  .nav.is-menu-open .nav__links { transform: translateX(0); }
  .nav__link { font-size: 14px; }
  .nav__link span:not(.nav__chat-pill) { font-size: 11px; }
  .nav__link--mobile { display: inline-flex; align-items: center; gap: 8px; }
  .nav__right { display: none; }
  .nav__burger { display: flex; justify-self: end; z-index: 110; }
}
@media (max-width: 480px) {
  .nav__chat-pill { display: inline-block; }
}