/* =========================================================
   TopSpeedAi — site styles
   Brand: Tan #B86528 · Silver #86888A · Black #231F20
   Type: Montserrat (Gotham stand-in) + JetBrains Mono (technical labels)
   ========================================================= */

:root {
  /* Brand */
  --tan: #B86528;
  --tan-bright: #D9894A;     /* small tan text on dark */
  --tan-deep: #93501E;       /* tan text on paper */
  --silver: #86888A;
  --silver-light: #B7B9BB;
  --black: #231F20;

  /* Surfaces */
  --ink: #1C191A;
  --ink-2: #231F20;
  --ink-3: #2B2627;
  --ink-4: #352F30;
  --line-dark: rgba(255, 255, 255, .09);
  --line-dark-2: rgba(255, 255, 255, .16);
  --paper: #F3EEE6;
  --paper-2: #E8E0D3;
  --paper-3: #DCD2C2;
  --line-paper: rgba(35, 31, 32, .14);

  /* Text */
  --on-dark: #F4F1EC;
  --on-dark-2: #BDB8B2;
  --on-dark-3: #8F8A85;
  --on-paper: #231F20;
  --on-paper-2: #57534F;

  /* Type */
  --font-sans: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --text-xs: clamp(.75rem, .72rem + .15vw, .8125rem);
  --text-sm: clamp(.875rem, .85rem + .12vw, .9375rem);
  --text-base: clamp(1rem, .97rem + .15vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + .35vw, 1.3125rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.1vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);
  --text-hero: clamp(2.6rem, 1.6rem + 4.6vw, 5.4rem);

  /* Space */
  --s-1: .25rem; --s-2: .5rem; --s-3: .75rem; --s-4: 1rem; --s-5: 1.25rem; --s-6: 1.5rem;
  --s-8: 2rem; --s-10: 2.5rem; --s-12: 3rem; --s-16: 4rem; --s-20: 5rem; --s-24: 6rem; --s-32: 8rem;
  --section: clamp(4.5rem, 9vw, 8.5rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --max: 1240px;

  --r-sm: 3px; --r-md: 6px; --r-lg: 10px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --header-h: 72px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body { margin: 0; font-family: var(--font-sans); font-size: var(--text-base); line-height: 1.65; color: var(--on-dark); background: var(--ink); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4 { margin: 0; font-weight: 500; line-height: 1.1; letter-spacing: -.02em; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
ul, ol { margin: 0; padding: 0; }
:focus-visible { outline: 2px solid var(--tan-bright); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--tan); color: #fff; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 1rem; top: -60px; z-index: 200; background: var(--tan); color: #fff; padding: .6rem 1rem; border-radius: var(--r-sm); font-weight: 600; transition: top .2s; }
.skip:focus { top: 1rem; }

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 820px; }

/* ---------- Type utilities ---------- */
.kicker { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--tan-bright); }
.kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.paper .kicker { color: var(--tan-deep); }
.h-display { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.025em; }
.h-section { font-size: var(--text-xl); font-weight: 500; }
.lede { font-size: var(--text-lg); line-height: 1.55; color: var(--on-dark-2); max-width: 60ch; }
.paper .lede { color: var(--on-paper-2); }
.muted { color: var(--on-dark-2); }
.paper .muted { color: var(--on-paper-2); }
.ai { font-weight: 600; }
.accent { color: var(--tan-bright); }
.paper .accent { color: var(--tan-deep); }
.mono { font-family: var(--font-mono); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: 48px; padding: .8rem 1.4rem; border-radius: var(--r-sm); border: 1px solid transparent; font-size: var(--text-sm); font-weight: 600; letter-spacing: .01em; line-height: 1.2; transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease); white-space: nowrap; }
.btn svg { width: 18px; height: 18px; flex: none; transition: transform .3s var(--ease); }
.btn:hover svg.arrow { transform: translateX(3px); }
.btn-primary { background: var(--tan); color: #fff; }
.btn-primary:hover { background: #a3571f; }
.btn-ghost { border-color: var(--line-dark-2); color: var(--on-dark); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: var(--tan-bright); color: #fff; background: rgba(184,101,40,.1); }
.paper .btn-ghost { border-color: rgba(35,31,32,.25); color: var(--on-paper); background: transparent; }
.paper .btn-ghost:hover { border-color: var(--tan); color: var(--tan-deep); background: rgba(184,101,40,.06); }
.btn-sm { min-height: 40px; padding: .55rem 1rem; font-size: .8125rem; }
.link-arrow { display: inline-flex; align-items: center; gap: .45rem; font-weight: 600; font-size: var(--text-sm); color: var(--tan-bright); }
.link-arrow svg { width: 16px; height: 16px; transition: transform .3s var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }
.paper .link-arrow { color: var(--tan-deep); }

/* ---------- Header ---------- */
.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: var(--header-h); transition: background-color .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s; border-bottom: 1px solid transparent; }
.site-header.scrolled, .site-header.solid { background: rgba(28, 25, 26, .82); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); border-bottom-color: var(--line-dark); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-6); }
.brand { display: flex; align-items: center; gap: .7rem; flex: none; }
.brand img { height: 30px; width: auto; }
.brand-word { font-size: 1.28rem; font-weight: 400; letter-spacing: -.01em; color: #fff; line-height: 1; }
.brand-word b { font-weight: 600; }
.nav { display: flex; align-items: center; gap: clamp(.9rem, 2vw, 2rem); }
.nav a.nav-link { position: relative; font-size: .875rem; font-weight: 500; color: var(--on-dark-2); padding: .5rem 0; transition: color .2s; }
.nav a.nav-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px; background: var(--tan-bright); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.nav a.nav-link:hover, .nav a.nav-link[aria-current="page"] { color: #fff; }
.nav a.nav-link:hover::after, .nav a.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-tools { position: relative; }
.nav-tools > button { display: inline-flex; align-items: center; gap: .3rem; background: none; border: 0; padding: .5rem 0; font-size: .875rem; font-weight: 500; color: var(--on-dark-2); }
.nav-tools > button:hover, .nav-tools.open > button, .nav-tools > button[data-current] { color: #fff; }
.nav-tools > button svg { width: 14px; height: 14px; transition: transform .25s; }
.nav-tools.open > button svg { transform: rotate(180deg); }
.tools-menu { position: absolute; top: calc(100% + 10px); left: 50%; translate: -50% 0; width: 320px; padding: .5rem; background: var(--ink-3); border: 1px solid var(--line-dark-2); border-radius: var(--r-md); box-shadow: 0 24px 60px rgba(0,0,0,.5); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .2s, transform .25s var(--ease), visibility .2s; }
.nav-tools.open .tools-menu { opacity: 1; visibility: visible; transform: none; }
.tools-menu a { display: grid; grid-template-columns: 36px 1fr; gap: .2rem .8rem; padding: .75rem; border-radius: var(--r-sm); }
.tools-menu a:hover { background: rgba(255,255,255,.05); }
.tools-menu .ti { grid-row: span 2; width: 36px; height: 36px; border-radius: var(--r-sm); display: grid; place-items: center; background: rgba(184,101,40,.14); color: var(--tan-bright); }
.tools-menu .ti svg { width: 18px; height: 18px; }
.tools-menu strong { font-size: .875rem; font-weight: 600; color: #fff; }
.tools-menu span.d { font-size: .8125rem; color: var(--on-dark-3); line-height: 1.4; }
.menu-btn { display: none; width: 44px; height: 44px; border: 1px solid var(--line-dark-2); border-radius: var(--r-sm); background: transparent; place-items: center; }
.menu-btn span { display: block; width: 18px; height: 1.5px; background: #fff; position: relative; transition: background .2s; }
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: #fff; transition: transform .3s var(--ease); }
.menu-btn span::before { top: -6px; } .menu-btn span::after { top: 6px; }
.menu-open .menu-btn span { background: transparent; }
.menu-open .menu-btn span::before { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-btn span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 960px) {
  .menu-btn { display: grid; }
  .nav { position: fixed; inset: var(--header-h) 0 0; flex-direction: column; align-items: stretch; gap: 0; padding: var(--s-6) var(--gutter) var(--s-10); background: var(--ink); overflow-y: auto; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .25s, transform .3s var(--ease), visibility .25s; }
  .menu-open .nav { opacity: 1; visibility: visible; transform: none; }
  .menu-open .site-header { background: var(--ink); }
  .nav a.nav-link { font-size: 1.25rem; padding: 1rem 0; border-bottom: 1px solid var(--line-dark); color: #fff; }
  .nav a.nav-link::after { display: none; }
  .nav-tools > button { display: none; }
  .tools-menu { position: static; translate: none; width: auto; opacity: 1; visibility: visible; transform: none; background: transparent; border: 0; box-shadow: none; padding: var(--s-4) 0; }
  .tools-menu a { padding: .75rem 0; }
  .nav .btn { margin-top: var(--s-6); }
}

/* ---------- Sections ---------- */
.section { padding-block: var(--section); position: relative; }
.paper { background: var(--paper); color: var(--on-paper); }
.paper-2 { background: var(--paper-2); color: var(--on-paper); }
.ink-2 { background: var(--ink-2); }
.sec-head { display: grid; gap: var(--s-5); margin-bottom: clamp(2.5rem, 5vw, 4rem); max-width: 760px; }
.sec-head.split { max-width: none; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); align-items: end; gap: var(--s-8) var(--s-16); }
@media (max-width: 860px) { .sec-head.split { grid-template-columns: 1fr; } }

/* grain overlay for tactile feel */
.grain { position: relative; isolation: isolate; }
.grain::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .5; mix-blend-mode: multiply; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.35 0 0 0 0 0.27 0 0 0 0 0.2 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* ---------- Hero (home) ---------- */
.hero { position: relative; min-height: min(100svh, 980px); display: flex; align-items: center; padding: calc(var(--header-h) + var(--s-12)) 0 var(--s-16); overflow: hidden; background: var(--ink); isolation: isolate; }
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; opacity: .55; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--ink) 18%, rgba(28,25,26,.82) 45%, rgba(28,25,26,.25) 75%, rgba(28,25,26,.5)), linear-gradient(0deg, var(--ink) 2%, transparent 35%); }
#circuit { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: var(--s-12); align-items: end; }
.hero h1 { font-size: var(--text-hero); font-weight: 500; letter-spacing: -.035em; line-height: 1.02; margin-top: var(--s-6); }
.hero h1 .ln { display: block; }
.hero h1 em { font-style: normal; color: var(--tan-bright); }
.hero-copy { margin-top: var(--s-8); display: grid; gap: var(--s-3); max-width: 56ch; color: var(--on-dark-2); font-size: var(--text-lg); line-height: 1.55; }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-10); }

/* decision console */
.console { background: rgba(35, 31, 32, .72); border: 1px solid var(--line-dark-2); border-radius: var(--r-md); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-family: var(--font-mono); font-size: .78rem; box-shadow: 0 30px 80px rgba(0,0,0,.45); overflow: hidden; }
.console-bar { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .7rem 1rem; border-bottom: 1px solid var(--line-dark); color: var(--on-dark-3); letter-spacing: .08em; text-transform: uppercase; font-size: .68rem; }
.console-bar .dots { display: flex; gap: 6px; }
.console-bar .dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-4); }
.console-bar .dots i:first-child { background: var(--tan); }
.console-body { padding: 1rem 1rem 1.1rem; display: grid; gap: .85rem; min-height: 212px; }
.c-row { display: grid; gap: .3rem; }
.c-label { color: var(--on-dark-3); }
.c-task { color: #fff; font-size: .9rem; font-family: var(--font-sans); font-weight: 500; letter-spacing: -.005em; min-height: 1.4em; }
.c-meter { height: 4px; background: var(--ink-4); border-radius: 2px; overflow: hidden; }
.c-meter i { display: block; height: 100%; width: 0; background: var(--tan); transition: width 1.1s var(--ease); }
.c-verdict { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding-top: .8rem; border-top: 1px dashed var(--line-dark-2); }
.c-verdict b { color: var(--tan-bright); font-weight: 500; }
.c-verdict .pill { padding: .25rem .55rem; border: 1px solid rgba(217,137,74,.45); border-radius: 2px; color: var(--tan-bright); white-space: nowrap; }
.c-cursor { display: inline-block; width: 7px; height: 1em; background: var(--tan-bright); vertical-align: -2px; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.console-foot { padding: .6rem 1rem; border-top: 1px solid var(--line-dark); color: var(--on-dark-3); font-size: .68rem; letter-spacing: .04em; }

.scroll-cue { position: absolute; left: 50%; bottom: 22px; translate: -50% 0; display: grid; justify-items: center; gap: 6px; color: var(--on-dark-3); font-family: var(--font-mono); font-size: .65rem; letter-spacing: .2em; text-transform: uppercase; }
.scroll-cue i { width: 1px; height: 34px; background: linear-gradient(var(--tan-bright), transparent); animation: cue 2.2s var(--ease) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .console { max-width: 520px; }
  .scroll-cue { display: none; }
}

/* ---------- Stats band ---------- */
.stats { border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); background: var(--ink-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { padding: clamp(1.75rem, 3.5vw, 2.75rem) clamp(1rem, 2.2vw, 2rem); border-left: 1px solid var(--line-dark); display: grid; gap: .5rem; align-content: start; }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-num { font-size: clamp(2rem, 1.4rem + 2.4vw, 3.4rem); font-weight: 500; letter-spacing: -.04em; line-height: 1; color: #fff; font-variant-numeric: tabular-nums; }
.stat-num sup { font-size: .5em; color: var(--tan-bright); vertical-align: .55em; margin-left: 2px; }
.stat-label { font-size: var(--text-sm); color: var(--on-dark-2); line-height: 1.45; max-width: 26ch; }
@media (max-width: 860px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border-left: 0; padding-left: 0; border-top: 1px solid var(--line-dark); }
  .stat:nth-child(-n+2) { border-top: 0; }
  .stat:nth-child(even) { padding-left: var(--s-6); border-left: 1px solid var(--line-dark); }
}

/* ---------- Right tool (interactive) ---------- */
.tool-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(2rem, 5vw, 5rem); align-items: stretch; }
.tool-tabs { display: grid; gap: var(--s-3); align-content: start; }
.tool-tab { text-align: left; display: grid; grid-template-columns: auto 1fr auto; gap: .2rem 1rem; align-items: center; padding: 1.25rem 1.35rem; border-radius: var(--r-md); border: 1px solid var(--line-paper); background: rgba(255,255,255,.35); transition: border-color .3s, background-color .3s, box-shadow .3s; }
.tool-tab:hover { border-color: rgba(184,101,40,.5); }
.tool-tab[aria-selected="true"] { background: #fff; border-color: var(--tan); box-shadow: 0 14px 40px rgba(35,31,32,.1); }
.tool-tab .num { grid-row: span 2; font-family: var(--font-mono); font-size: .75rem; color: var(--on-paper-2); width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line-paper); display: grid; place-items: center; transition: all .3s; }
.tool-tab[aria-selected="true"] .num { background: var(--tan); border-color: var(--tan); color: #fff; }
.tool-tab h3 { font-size: var(--text-lg); font-weight: 600; letter-spacing: -.01em; }
.tool-tab p { grid-column: 2; font-size: var(--text-sm); color: var(--on-paper-2); line-height: 1.5; }
.tool-tab .chev { grid-row: span 2; grid-column: 3; width: 18px; height: 18px; color: var(--tan-deep); opacity: 0; transition: opacity .3s, transform .3s var(--ease); transform: translateX(-4px); }
.tool-tab[aria-selected="true"] .chev { opacity: 1; transform: none; }
.tool-stage { position: relative; border-radius: var(--r-lg); background: var(--ink-2); color: var(--on-dark); overflow: hidden; min-height: 440px; display: flex; flex-direction: column; box-shadow: 0 30px 70px rgba(35,31,32,.25); }
.stage-head { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line-dark); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-3); }
.stage-head b { color: var(--tan-bright); font-weight: 500; }
.stage-svg { flex: 1; display: grid; place-items: center; padding: 1.25rem; }
.stage-svg svg { width: 100%; height: auto; max-height: 300px; }
.stage-foot { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); }
.stage-foot div { padding: .9rem 1.25rem; border-left: 1px solid var(--line-dark); display: grid; gap: .2rem; }
.stage-foot div:first-child { border-left: 0; }
.stage-foot span { font-family: var(--font-mono); font-size: .65rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-3); }
.stage-foot b { font-weight: 500; font-size: .875rem; }
.flow-node rect { fill: var(--ink-3); stroke: rgba(255,255,255,.18); }
.flow-node text { fill: #e9e5df; font-family: var(--font-mono); font-size: 11px; letter-spacing: .04em; }
.flow-node.ai rect { stroke: var(--tan); fill: rgba(184,101,40,.12); }
.flow-node.ai text { fill: #f3c8a4; }
.flow-line { stroke: rgba(255,255,255,.22); stroke-width: 1.5; fill: none; }
.flow-pulse { fill: var(--tan-bright); }
.flow-mode { opacity: 0; transition: opacity .5s var(--ease); }
.flow-mode.on { opacity: 1; }
@media (max-width: 960px) { .tool-grid { grid-template-columns: 1fr; } .tool-stage { min-height: 380px; } }

/* ---------- Statement (full-bleed image) ---------- */
.statement { position: relative; min-height: 78vh; display: flex; align-items: flex-end; overflow: hidden; isolation: isolate; padding-block: var(--section); }
.statement-img { position: absolute; inset: -8% 0; z-index: -2; }
.statement-img img { width: 100%; height: 100%; object-fit: cover; }
.statement::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(28,25,26,.96) 8%, rgba(28,25,26,.55) 50%, rgba(28,25,26,.25)); }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: var(--s-12); align-items: end; }
.statement blockquote { margin: 0; font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.025em; line-height: 1.12; }
.statement blockquote span { color: var(--tan-bright); }
.statement p { color: var(--on-dark-2); }
@media (max-width: 860px) { .statement-grid { grid-template-columns: 1fr; } .statement { min-height: 0; padding-top: 40vh; } }

/* ---------- Services list ---------- */
.svc-list { border-top: 1px solid var(--line-paper); }
.svc { display: grid; grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1fr) 40px; gap: var(--s-8); align-items: start; padding: clamp(1.75rem, 3vw, 2.5rem) 0; border-bottom: 1px solid var(--line-paper); position: relative; transition: padding .4s var(--ease); }
.svc::before { content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 1px; background: var(--tan); transform: scaleX(0); transform-origin: left; transition: transform .6s var(--ease); }
.svc:hover::before { transform: scaleX(1); }
.svc-num { font-family: var(--font-mono); font-size: .8rem; color: var(--tan-deep); padding-top: .35rem; }
.svc h3 { font-size: var(--text-xl); font-weight: 500; }
.svc p { color: var(--on-paper-2); }
.svc .arrow-c { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-paper); display: grid; place-items: center; color: var(--on-paper); transition: all .3s var(--ease); }
.svc:hover .arrow-c { background: var(--tan); border-color: var(--tan); color: #fff; transform: rotate(-45deg); }
.svc .arrow-c svg { width: 16px; height: 16px; }
.svc a.cover { position: absolute; inset: 0; }
@media (max-width: 860px) { .svc { grid-template-columns: 44px 1fr; gap: var(--s-3) var(--s-4); } .svc > p { grid-column: 2; } .svc .arrow-c { display: none; } }

/* ---------- Process (trace) ---------- */
.process { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 6vw, 6rem); }
.process-sticky { position: sticky; top: calc(var(--header-h) + 40px); align-self: start; display: grid; gap: var(--s-6); }
.process-sticky img { border-radius: var(--r-md); aspect-ratio: 4/3; object-fit: cover; margin-top: var(--s-4); }
.steps { position: relative; display: grid; gap: clamp(2.5rem, 5vw, 4rem); padding-left: 56px; }
.steps .rail { position: absolute; left: 15px; top: 8px; bottom: 8px; width: 2px; background: var(--line-dark-2); }
.steps .rail i { position: absolute; inset: 0 0 auto; height: var(--fill, 0%); background: linear-gradient(var(--tan), var(--tan-bright)); box-shadow: 0 0 12px rgba(217,137,74,.5); }
.step { position: relative; display: grid; gap: var(--s-3); }
.step::before { content: attr(data-n); position: absolute; left: -56px; top: -2px; width: 32px; height: 32px; border-radius: 50%; background: var(--ink); border: 1.5px solid var(--line-dark-2); display: grid; place-items: center; font-family: var(--font-mono); font-size: .72rem; color: var(--on-dark-3); transition: all .4s var(--ease); }
.step.lit::before { border-color: var(--tan-bright); color: #fff; background: var(--tan); box-shadow: 0 0 0 6px rgba(184,101,40,.15); }
.step h3 { font-size: var(--text-lg); font-weight: 600; letter-spacing: -.01em; }
.step p { color: var(--on-dark-2); max-width: 58ch; }
.paper .steps .rail { background: var(--line-paper); }
.paper .step::before { background: var(--paper); border-color: var(--line-paper); color: var(--on-paper-2); }
.paper .step p { color: var(--on-paper-2); }
@media (max-width: 860px) { .process { grid-template-columns: 1fr; } .process-sticky { position: static; } }

/* ---------- Tool cards ---------- */
.tool-cards { display: grid; grid-template-columns: 1.15fr .85fr; gap: var(--s-4); }
.tcard { position: relative; overflow: hidden; border-radius: var(--r-lg); padding: clamp(1.75rem, 3.5vw, 2.75rem); display: flex; flex-direction: column; justify-content: space-between; gap: var(--s-10); min-height: 400px; isolation: isolate; border: 1px solid var(--line-dark); transition: border-color .3s, transform .4s var(--ease); }
.tcard:hover { border-color: rgba(217,137,74,.55); }
.tcard h3 { font-size: var(--text-xl); font-weight: 500; max-width: 18ch; }
.tcard p { color: var(--on-dark-2); max-width: 44ch; margin-top: var(--s-4); }
.tcard-img { position: absolute; inset: 0; z-index: -1; }
.tcard-img img { width: 100%; height: 100%; object-fit: cover; opacity: .35; transition: transform 1.2s var(--ease), opacity .5s; }
.tcard:hover .tcard-img img { transform: scale(1.04); opacity: .45; }
.tcard-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(28,25,26,.4), rgba(28,25,26,.95) 70%); }
.tcard.alt { background: var(--tan); border-color: transparent; }
.tcard.alt p { color: rgba(255,255,255,.86); }
.tcard.alt .kicker { color: #fff; }
.tcard.alt .link-arrow { color: #fff; }
.tcard .meta { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: var(--s-5); }
.tag { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; padding: .3rem .55rem; border-radius: 2px; border: 1px solid var(--line-dark-2); color: var(--on-dark-2); }
.tcard.alt .tag { border-color: rgba(255,255,255,.4); color: #fff; }
.tcard a.cover { position: absolute; inset: 0; z-index: 2; }
.tcard .traces-deco { position: absolute; right: -30px; bottom: -20px; width: 300px; opacity: .25; z-index: -1; }
@media (max-width: 860px) { .tool-cards { grid-template-columns: 1fr; } .tcard { min-height: 320px; } }

/* ---------- Article cards ---------- */
.posts { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--s-6); }
.post { grid-column: span 4; display: grid; gap: var(--s-4); align-content: start; position: relative; }
.post.feature { grid-column: span 6; }
.post-img { aspect-ratio: 3/2; overflow: hidden; border-radius: var(--r-md); background: var(--paper-3); }
.post.feature .post-img { aspect-ratio: 16/10; }
.post-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.post:hover .post-img img { transform: scale(1.04); }
.post-meta { display: flex; gap: .9rem; font-family: var(--font-mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-paper-2); }
.post-meta .cat { color: var(--tan-deep); }
.post h3 { font-size: var(--text-lg); font-weight: 600; letter-spacing: -.01em; line-height: 1.25; }
.post.feature h3 { font-size: var(--text-xl); font-weight: 500; }
.post p { color: var(--on-paper-2); font-size: var(--text-sm); }
.post a.cover { position: absolute; inset: 0; }
.post:hover h3 { color: var(--tan-deep); }
.posts.three .post { grid-column: span 4; }
@media (max-width: 960px) { .post, .post.feature, .posts.three .post { grid-column: span 12; } .posts { gap: var(--s-10); } }
@media (min-width: 640px) and (max-width: 960px) { .post:not(.feature), .posts.three .post { grid-column: span 6; } }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--ink-2); isolation: isolate; }
.cta-inner { display: grid; grid-template-columns: minmax(0, 1.3fr) auto; align-items: center; gap: var(--s-10); }
.cta-band h2 { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.03em; max-width: 18ch; }
.cta-band p { color: var(--on-dark-2); margin-top: var(--s-5); max-width: 52ch; }
.cta-actions { display: flex; flex-direction: column; gap: var(--s-3); }
.cta-traces { position: absolute; right: -60px; top: 50%; translate: 0 -50%; width: min(560px, 60vw); opacity: .12; z-index: -1; }
@media (max-width: 860px) { .cta-inner { grid-template-columns: 1fr; } .cta-actions { flex-direction: row; flex-wrap: wrap; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); border-top: 1px solid var(--line-dark); padding: var(--s-16) 0 var(--s-8); font-size: var(--text-sm); }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--s-10); }
.foot-brand img { height: 46px; width: auto; }
.foot-brand p { color: var(--on-dark-3); margin-top: var(--s-5); max-width: 34ch; line-height: 1.6; }
.foot-col h2 { font-family: var(--font-mono); font-size: .7rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--on-dark-3); margin-bottom: var(--s-4); }
.foot-col ul { list-style: none; display: grid; gap: .55rem; }
.foot-col a { color: var(--on-dark-2); transition: color .2s; }
.foot-col a:hover { color: var(--tan-bright); }
.foot-bottom { margin-top: var(--s-16); padding-top: var(--s-6); border-top: 1px solid var(--line-dark); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-4); color: var(--on-dark-3); font-size: var(--text-xs); }
.foot-bottom nav { display: flex; gap: .4rem; flex-wrap: wrap; }
.foot-bottom nav a:hover { color: var(--on-dark); }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

/* ---------- Page hero (interior) ---------- */
.page-hero { position: relative; padding: calc(var(--header-h) + clamp(3.5rem, 8vw, 7rem)) 0 clamp(3.5rem, 7vw, 6rem); overflow: hidden; isolation: isolate; background: var(--ink); border-bottom: 1px solid var(--line-dark); }
.page-hero h1 { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.03em; margin-top: var(--s-5); max-width: 22ch; }
.page-hero .lede { margin-top: var(--s-6); }
.page-hero .ph-traces { position: absolute; right: -40px; bottom: -30px; width: min(620px, 70vw); opacity: .14; z-index: -1; }
.page-hero .ph-img { position: absolute; inset: 0; z-index: -2; }
.page-hero .ph-img img { width: 100%; height: 100%; object-fit: cover; opacity: .32; }
.page-hero .ph-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--ink) 25%, rgba(28,25,26,.6)); }
.crumbs { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-3); display: flex; gap: .5rem; }
.crumbs a:hover { color: var(--tan-bright); }

/* ---------- Service detail blocks ---------- */
.svc-detail { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); padding-block: clamp(3rem, 6vw, 5rem); border-top: 1px solid var(--line-paper); }
.svc-detail:first-child { border-top: 0; padding-top: 0; }
.svc-detail h2 { font-size: var(--text-xl); font-weight: 500; margin-top: var(--s-4); }
.svc-detail .intro { font-size: var(--text-lg); color: var(--on-paper-2); line-height: 1.55; margin-top: var(--s-5); }
.checks { list-style: none; display: grid; gap: 0; border-top: 1px solid var(--line-paper); align-self: start; }
.checks li { display: grid; grid-template-columns: 28px 1fr; gap: .75rem; align-items: start; padding: 1.05rem 0; border-bottom: 1px solid var(--line-paper); font-weight: 500; }
.checks li svg { width: 20px; height: 20px; color: var(--tan); margin-top: 3px; }
.svc-icon { width: 52px; height: 52px; border-radius: var(--r-md); background: var(--ink-2); color: var(--tan-bright); display: grid; place-items: center; }
.svc-icon svg { width: 26px; height: 26px; }
@media (max-width: 860px) { .svc-detail { grid-template-columns: 1fr; } }

.callout { border-radius: var(--r-lg); padding: clamp(2rem, 5vw, 4rem); background: var(--ink-2); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: var(--s-10); align-items: center; position: relative; overflow: hidden; isolation: isolate; }
.callout h2 { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.03em; }
.callout p { color: var(--on-dark-2); }
.callout .big { font-size: var(--text-lg); color: #fff; font-weight: 500; }
.callout .traces-deco { position: absolute; left: -40px; bottom: -40px; width: 360px; opacity: .08; z-index: -1; }
@media (max-width: 860px) { .callout { grid-template-columns: 1fr; } }

/* ---------- About ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.split.top { align-items: start; }
.split img.framed { border-radius: var(--r-md); width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.prose { display: grid; gap: var(--s-5); }
.prose p { color: var(--on-paper-2); }
.ink-2 .prose p, .section:not(.paper):not(.paper-2) .prose p { color: var(--on-dark-2); }
.prose p.big { font-size: var(--text-lg); color: var(--on-paper); font-weight: 500; line-height: 1.5; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--r-md); overflow: hidden; }
.principle { background: var(--ink-2); padding: clamp(1.5rem, 3vw, 2.25rem); display: grid; gap: var(--s-3); align-content: start; }
.principle .mono { color: var(--tan-bright); font-size: .75rem; letter-spacing: .1em; }
.principle h3 { font-size: var(--text-lg); font-weight: 600; }
.principle p { color: var(--on-dark-2); font-size: var(--text-sm); }
.person { display: grid; grid-template-columns: auto 1fr; gap: var(--s-6); align-items: center; padding: var(--s-6); border: 1px solid var(--line-paper); border-radius: var(--r-md); background: rgba(255,255,255,.4); }
.person .avatar { width: 72px; height: 72px; border-radius: 50%; background: var(--tan); display: grid; place-items: center; }
.person .avatar img { width: 46px; }
.person h3 { font-size: var(--text-lg); font-weight: 600; }
.person .role { color: var(--on-paper-2); font-size: var(--text-sm); }
.person .contact-lines { margin-top: .4rem; display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; font-size: var(--text-sm); }
.person .contact-lines a { color: var(--tan-deep); font-weight: 500; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } .principles { grid-template-columns: 1fr; } }

/* ---------- Forms ---------- */
.form-shell { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.contact-aside { display: grid; gap: var(--s-8); position: sticky; top: calc(var(--header-h) + 32px); }
.contact-aside .lines { display: grid; gap: var(--s-4); }
.contact-aside .line { display: grid; grid-template-columns: 40px 1fr; gap: .9rem; align-items: center; }
.contact-aside .line .ic { width: 40px; height: 40px; border-radius: var(--r-sm); border: 1px solid var(--line-paper); display: grid; place-items: center; color: var(--tan-deep); }
.contact-aside .line .ic svg { width: 18px; height: 18px; }
.contact-aside .line span { display: block; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-paper-2); }
.contact-aside .line a { font-weight: 600; }
.contact-aside .line a:hover { color: var(--tan-deep); }
.expect { border-top: 1px solid var(--line-paper); padding-top: var(--s-6); display: grid; gap: var(--s-4); }
.expect ol { list-style: none; counter-reset: e; display: grid; gap: var(--s-3); }
.expect li { counter-increment: e; display: grid; grid-template-columns: 28px 1fr; gap: .6rem; font-size: var(--text-sm); color: var(--on-paper-2); }
.expect li::before { content: counter(e, decimal-leading-zero); font-family: var(--font-mono); font-size: .72rem; color: var(--tan-deep); padding-top: 2px; }
.form-card { background: #fff; border: 1px solid var(--line-paper); border-radius: var(--r-lg); padding: clamp(1.5rem, 4vw, 2.75rem); box-shadow: 0 30px 70px rgba(35,31,32,.08); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5) var(--s-4); }
.field { display: grid; gap: .45rem; }
.field.full { grid-column: 1 / -1; }
.field label, .field legend { font-size: .8125rem; font-weight: 600; color: var(--on-paper); }
.field label .opt { font-weight: 400; color: var(--on-paper-2); }
.field label .req { color: var(--tan-deep); }
.input, .field input, .field textarea, .field select { width: 100%; min-height: 48px; padding: .75rem .9rem; border: 1px solid rgba(35,31,32,.2); border-radius: var(--r-sm); background: var(--paper); color: var(--on-paper); font-size: 1rem; transition: border-color .2s, box-shadow .2s, background-color .2s; }
.field textarea { min-height: 150px; resize: vertical; line-height: 1.55; }
.field input:hover, .field textarea:hover, .field select:hover { border-color: rgba(35,31,32,.38); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--tan); box-shadow: 0 0 0 3px rgba(184,101,40,.18); background: #fff; }
.field .err { display: none; font-size: .8125rem; color: #A3321C; }
.field.invalid input, .field.invalid textarea { border-color: #B53B22; }
.field.invalid .err { display: block; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-flex; align-items: center; min-height: 40px; padding: .45rem .9rem; border-radius: 999px; border: 1px solid rgba(35,31,32,.2); font-size: .875rem; font-weight: 500; cursor: pointer; transition: all .2s; user-select: none; }
.chip span:hover { border-color: var(--tan); }
.chip input:checked + span { background: var(--black); border-color: var(--black); color: #fff; }
.chip input:focus-visible + span { outline: 2px solid var(--tan); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-4); margin-top: var(--s-8); }
.form-foot .fine { font-size: .8125rem; color: var(--on-paper-2); max-width: 40ch; }
.form-status { margin-top: var(--s-5); padding: .9rem 1rem; border-radius: var(--r-sm); font-size: .9375rem; display: none; }
.form-status.show { display: block; }
.form-status.error { background: #FBEDE8; color: #8A2A16; border: 1px solid #EFC3B6; }
.btn[aria-busy="true"] { opacity: .8; pointer-events: none; }
.btn .spin { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255,255,255,.35); border-top-color: #fff; animation: spin .8s linear infinite; display: none; }
.btn[aria-busy="true"] .spin { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }
.success { display: none; text-align: left; gap: var(--s-4); }
.success.show { display: grid; }
.success .tick { width: 56px; height: 56px; border-radius: 50%; background: var(--tan); color: #fff; display: grid; place-items: center; }
.success .tick svg { width: 26px; height: 26px; }
.success h2 { font-size: var(--text-xl); font-weight: 500; }
@media (max-width: 860px) { .form-shell { grid-template-columns: 1fr; } .contact-aside { position: static; } }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- ROI calculator ---------- */
.calc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-6); align-items: start; }
.calc-inputs { background: #fff; border: 1px solid var(--line-paper); border-radius: var(--r-lg); padding: clamp(1.5rem, 3.5vw, 2.5rem); display: grid; gap: var(--s-8); }
.calc-inputs h2, .calc-out h2 { font-size: var(--text-lg); font-weight: 600; }
.range-field { display: grid; gap: .6rem; }
.range-top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.range-top label { font-size: .875rem; font-weight: 600; }
.range-top .help { display: block; font-size: .8125rem; font-weight: 400; color: var(--on-paper-2); margin-top: .15rem; }
.num-in { width: 120px; min-height: 42px; text-align: right; padding: .45rem .7rem; border: 1px solid rgba(35,31,32,.2); border-radius: var(--r-sm); background: var(--paper); font-family: var(--font-mono); font-size: .95rem; font-variant-numeric: tabular-nums; }
.num-in:focus { outline: none; border-color: var(--tan); box-shadow: 0 0 0 3px rgba(184,101,40,.18); }
.num-wrap { position: relative; display: inline-flex; align-items: center; }
.num-wrap .unit { position: absolute; left: .7rem; font-family: var(--font-mono); font-size: .85rem; color: var(--on-paper-2); pointer-events: none; }
.num-wrap.pre .num-in { padding-left: 1.5rem; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; --p: 50%; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--tan) var(--p), var(--paper-3) var(--p)); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--paper-3); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--tan); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; margin-top: -9px; border-radius: 50%; background: #fff; border: 2px solid var(--tan); box-shadow: 0 2px 8px rgba(35,31,32,.2); cursor: grab; }
input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 2px solid var(--tan); cursor: grab; }
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 5px rgba(184,101,40,.25); }
.calc-out { position: sticky; top: calc(var(--header-h) + 24px); background: var(--ink-2); color: var(--on-dark); border-radius: var(--r-lg); padding: clamp(1.5rem, 3.5vw, 2.5rem); display: grid; gap: var(--s-6); overflow: hidden; isolation: isolate; }
.calc-out .traces-deco { position: absolute; right: -40px; top: -30px; width: 260px; opacity: .08; z-index: -1; }
.big-num { font-size: clamp(2.6rem, 1.8rem + 3vw, 4.2rem); font-weight: 500; letter-spacing: -.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.big-num small { font-size: .35em; letter-spacing: 0; color: var(--on-dark-2); font-weight: 500; margin-left: .3rem; }
.out-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-3); margin-bottom: .5rem; }
.out-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--r-md); overflow: hidden; }
.out-grid div { background: var(--ink-2); padding: 1rem 1.1rem; }
.out-grid b { display: block; font-size: 1.35rem; font-weight: 500; letter-spacing: -.02em; font-variant-numeric: tabular-nums; margin-top: .2rem; }
.out-grid b.pos { color: var(--tan-bright); }
.chart { display: grid; gap: .5rem; }
.chart svg { width: 100%; height: auto; }
.chart .bar-cost { fill: var(--ink-4); }
.chart .bar-save { fill: var(--tan); }
.chart text { fill: var(--on-dark-3); font-family: var(--font-mono); font-size: 10px; }
.legend-row { display: flex; gap: 1rem; font-size: .75rem; color: var(--on-dark-3); font-family: var(--font-mono); }
.legend-row i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: .4rem; vertical-align: -1px; }
.disclaimer { font-size: .8125rem; color: var(--on-dark-3); line-height: 1.5; }
.presets { display: flex; flex-wrap: wrap; gap: .5rem; }
@media (max-width: 960px) { .calc { grid-template-columns: 1fr; } .calc-out { position: static; } }

/* ---------- Readiness quiz ---------- */
.quiz { max-width: 860px; margin-inline: auto; }
.quiz-card { background: #fff; border: 1px solid var(--line-paper); border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 30px 70px rgba(35,31,32,.08); }
.quiz-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem clamp(1.25rem, 3vw, 2rem); border-bottom: 1px solid var(--line-paper); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-paper-2); }
.progress { height: 3px; background: var(--paper-2); }
.progress i { display: block; height: 100%; width: 0; background: var(--tan); transition: width .5s var(--ease); }
.q { padding: clamp(1.5rem, 4vw, 2.75rem) clamp(1.25rem, 4vw, 2.75rem); display: none; }
.q.active { display: block; animation: qin .45s var(--ease); }
@keyframes qin { from { opacity: 0; transform: translateX(14px); } to { opacity: 1; transform: none; } }
.q legend { font-size: var(--text-xl); font-weight: 500; letter-spacing: -.02em; line-height: 1.2; padding: 0; }
.q fieldset { border: 0; margin: 0; padding: 0; }
.q .q-help { color: var(--on-paper-2); margin-top: .6rem; font-size: var(--text-sm); }
.opts { display: grid; gap: .65rem; margin-top: var(--s-6); }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; }
.opt label { display: grid; grid-template-columns: 22px 1fr; gap: .9rem; align-items: start; padding: 1rem 1.1rem; border: 1px solid rgba(35,31,32,.16); border-radius: var(--r-md); cursor: pointer; transition: border-color .2s, background-color .2s; font-weight: 500; line-height: 1.45; }
.opt label small { display: block; font-weight: 400; color: var(--on-paper-2); font-size: .8125rem; margin-top: .15rem; }
.opt label::before { content: ""; width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid rgba(35,31,32,.3); margin-top: 1px; transition: all .2s; }
.opt input[type="checkbox"] + label::before { border-radius: 4px; }
.opt label:hover { border-color: var(--tan); }
.opt input:checked + label { border-color: var(--tan); background: rgba(184,101,40,.06); }
.opt input:checked + label::before { border-color: var(--tan); background: var(--tan); box-shadow: inset 0 0 0 4px #fff; }
.opt input[type="checkbox"]:checked + label::before { box-shadow: none; background: var(--tan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat; }
.opt input:focus-visible + label { outline: 2px solid var(--tan); outline-offset: 2px; }
.quiz-nav { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem clamp(1.25rem, 3vw, 2rem); border-top: 1px solid var(--line-paper); background: var(--paper); }
.btn-text { background: none; border: 0; font-weight: 600; font-size: var(--text-sm); color: var(--on-paper-2); min-height: 44px; padding: 0 .5rem; }
.btn-text:hover { color: var(--on-paper); }
.btn-text[disabled] { opacity: .35; pointer-events: none; }
.btn[disabled] { opacity: .45; pointer-events: none; }
.result { display: none; }
.result.show { display: block; animation: qin .5s var(--ease); }
.result-head { background: var(--ink-2); color: var(--on-dark); padding: clamp(1.75rem, 4vw, 3rem); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-8); align-items: center; position: relative; overflow: hidden; isolation: isolate; }
.result-head .traces-deco { position: absolute; right: -30px; bottom: -40px; width: 300px; opacity: .1; z-index: -1; }
.result-head h2 { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.03em; margin-top: var(--s-3); }
.result-head p { color: var(--on-dark-2); margin-top: var(--s-4); max-width: 54ch; }
.gauge { width: 150px; height: 150px; position: relative; }
.gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge .track { stroke: var(--ink-4); }
.gauge .val { stroke: var(--tan); stroke-linecap: round; transition: stroke-dashoffset 1.4s var(--ease); }
.gauge .g-num { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.gauge .g-num b { font-size: 2.2rem; font-weight: 500; letter-spacing: -.03em; line-height: 1; display: block; }
.gauge .g-num span { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-3); }
.result-body { padding: clamp(1.5rem, 4vw, 2.75rem); display: grid; gap: var(--s-8); }
.mix { display: grid; gap: .8rem; }
.mix-row { display: grid; grid-template-columns: 170px 1fr 48px; gap: 1rem; align-items: center; font-size: .875rem; font-weight: 500; }
.mix-bar { height: 8px; background: var(--paper-2); border-radius: 4px; overflow: hidden; }
.mix-bar i { display: block; height: 100%; width: 0; background: var(--black); border-radius: 4px; transition: width 1.2s var(--ease); }
.mix-row.top .mix-bar i { background: var(--tan); }
.mix-row .pct { font-family: var(--font-mono); font-size: .8rem; text-align: right; color: var(--on-paper-2); }
.recs { list-style: none; display: grid; gap: .75rem; }
.recs li { display: grid; grid-template-columns: 28px 1fr; gap: .6rem; color: var(--on-paper-2); }
.recs li svg { width: 20px; height: 20px; color: var(--tan); margin-top: 3px; }
.result-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
@media (max-width: 640px) { .result-head { grid-template-columns: 1fr; } .mix-row { grid-template-columns: 1fr 48px; } .mix-row .mix-bar { grid-column: 1 / -1; grid-row: 2; } }

/* ---------- Article ---------- */
.article-hero { padding: calc(var(--header-h) + clamp(3rem, 7vw, 5.5rem)) 0 0; background: var(--paper); color: var(--on-paper); }
.article-hero h1 { font-size: var(--text-2xl); font-weight: 500; letter-spacing: -.03em; margin-top: var(--s-5); max-width: 24ch; }
.article-hero .crumbs { color: var(--on-paper-2); }
.article-hero .crumbs a:hover { color: var(--tan-deep); }
.article-hero .post-meta { margin-top: var(--s-6); }
.article-cover { margin-top: clamp(2rem, 5vw, 3.5rem); border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 21/9; }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article { background: var(--paper); color: var(--on-paper); padding: clamp(2.5rem, 6vw, 4.5rem) 0 var(--section); }
.article-grid { display: grid; grid-template-columns: 220px minmax(0, 68ch); gap: clamp(2rem, 6vw, 5rem); justify-content: center; }
.toc { position: sticky; top: calc(var(--header-h) + 32px); align-self: start; display: grid; gap: .5rem; font-size: .8125rem; }
.toc h2 { font-family: var(--font-mono); font-size: .68rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--on-paper-2); margin-bottom: .4rem; }
.toc a { color: var(--on-paper-2); padding-left: .8rem; border-left: 1px solid var(--line-paper); line-height: 1.4; padding-block: .2rem; }
.toc a:hover, .toc a.on { color: var(--tan-deep); border-left-color: var(--tan); }
.body-copy { font-size: 1.0625rem; line-height: 1.75; }
.body-copy > * + * { margin-top: 1.25em; }
.body-copy h2 { font-size: var(--text-xl); font-weight: 500; margin-top: 2.2em; letter-spacing: -.02em; }
.body-copy h3 { font-size: var(--text-lg); font-weight: 600; margin-top: 1.8em; }
.body-copy p, .body-copy li { color: #3E3A37; }
.body-copy ul, .body-copy ol { padding-left: 1.25em; }
.body-copy li + li { margin-top: .5em; }
.body-copy li::marker { color: var(--tan); }
.body-copy strong { color: var(--on-paper); font-weight: 600; }
.body-copy blockquote { margin: 2em 0; padding: 1.5em 0 1.5em 1.5em; border-left: 3px solid var(--tan); font-size: var(--text-lg); font-weight: 500; line-height: 1.45; color: var(--on-paper); }
.body-copy .table-wrap { overflow-x: auto; }
.body-copy table { width: 100%; border-collapse: collapse; font-size: .9375rem; }
.body-copy th, .body-copy td { text-align: left; padding: .8rem .9rem; border-bottom: 1px solid var(--line-paper); vertical-align: top; }
.body-copy th { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-paper-2); font-weight: 500; }
.article-cta { margin-top: 3em; padding: 1.75rem; border-radius: var(--r-md); background: var(--ink-2); color: var(--on-dark); display: grid; gap: 1rem; }
.article-cta p { color: var(--on-dark-2) !important; }
.article-cta h2 { margin: 0 !important; font-size: var(--text-lg) !important; font-weight: 600 !important; color: #fff; }
@media (max-width: 960px) { .article-grid { grid-template-columns: 1fr; } .toc { display: none; } .article-cover { aspect-ratio: 16/9; } }

/* ---------- Insights index ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: var(--s-10); }
.filter-bar button { min-height: 40px; padding: .45rem 1rem; border-radius: 999px; border: 1px solid rgba(35,31,32,.2); background: transparent; font-size: .8125rem; font-weight: 600; transition: all .2s; }
.filter-bar button:hover { border-color: var(--tan); }
.filter-bar button[aria-pressed="true"] { background: var(--black); border-color: var(--black); color: #fff; }

/* ---------- 404 ---------- */
.nf { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: calc(var(--header-h) + 2rem) var(--gutter) 4rem; }
.nf .code { font-family: var(--font-mono); color: var(--tan-bright); letter-spacing: .2em; }
.nf h1 { font-size: var(--text-2xl); margin-top: 1rem; }
.nf p { color: var(--on-dark-2); margin: 1rem auto 2rem; max-width: 44ch; }
.nf img { width: 120px; margin: 0 auto 1.5rem; opacity: .9; }

/* ---------- Reveal ---------- */
.reveal { opacity: 1; }
.js .reveal { opacity: 0; transition: opacity .9s var(--ease), clip-path 1s var(--ease); }
.js .reveal.clip { clip-path: inset(0 0 100% 0); }
.js .reveal.in { opacity: 1; clip-path: inset(0 0 0 0); }
.js .reveal.d1 { transition-delay: .08s; } .js .reveal.d2 { transition-delay: .16s; } .js .reveal.d3 { transition-delay: .24s; }
.hero .stagger > * { opacity: 1; }
.js .hero .stagger > * { opacity: 0; animation: rise 1s var(--ease) forwards; }
.js .hero .stagger > *:nth-child(1) { animation-delay: .1s; } .js .hero .stagger > *:nth-child(2) { animation-delay: .22s; } .js .hero .stagger > *:nth-child(3) { animation-delay: .38s; } .js .hero .stagger > *:nth-child(4) { animation-delay: .52s; }
@keyframes rise { from { opacity: 0; filter: blur(6px); } to { opacity: 1; filter: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .js .reveal, .js .hero .stagger > * { opacity: 1 !important; clip-path: none !important; animation: none !important; }
}

/* ---------- Additions ---------- */
.presets button.chip { background: none; border: 0; padding: 0; color: inherit; }
.presets button.chip.on span { background: var(--black); border-color: var(--black); color: #fff; }
.contact-aside .line b { font-weight: 600; }
.body-copy a { color: var(--tan-deep); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.body-copy a:hover { color: var(--tan); }
.body-copy a.btn { text-decoration: none; color: #fff; }
.body-copy a.btn-ghost { color: var(--on-dark); }
.q-help a, .opt small a { color: var(--tan-deep); text-decoration: underline; }
[hidden] { display: none !important; }
.chip { position: relative; }
.field .chip input { width: 1px; height: 1px; min-height: 0; padding: 0; }
.posts { grid-template-columns: repeat(12, minmax(0, 1fr)); }
@media (max-width: 639px) { .posts { column-gap: 0; } }
html, body { overflow-x: clip; }
.cta-traces { opacity: .07; }
.foot-brand img { height: 64px; }
@media (max-width: 960px) { .calc { grid-template-columns: minmax(0, 1fr); } .calc-out, .calc-inputs { min-width: 0; } }
@media (max-width: 420px) { .num-in { width: 96px; } .out-grid b { font-size: 1.15rem; } }
@media (max-width: 960px) { .article-grid { grid-template-columns: minmax(0, 1fr); } }
.paper .callout .kicker, .paper .callout .accent, .result-head .kicker { color: var(--tan-bright); }
.result-head .traces-deco { opacity: .06; }
/* Article pages open on paper: keep the header solid */
body:has(.article-hero) .site-header { background: rgba(28, 25, 26, .94); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); border-bottom-color: var(--line-dark); }
.article-hero .lede { color: var(--on-paper-2); }
.ink-2 + .cta-band { border-top: 1px solid var(--line-dark); }

/* ---------- v3: streamlined home ---------- */
.hero-grid.solo { grid-template-columns: minmax(0, 760px); }
.hero-media img { object-position: 78% 50%; opacity: .6; }
.guide { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: var(--s-16); align-items: center; }
.guide-copy .lede { margin-top: var(--s-6); max-width: 52ch; }
.pillars { list-style: none; padding: 0; margin: var(--s-8) 0 var(--s-8); display: grid; gap: 0; border-top: 1px solid var(--line-paper); }
.pillars li { display: grid; grid-template-columns: 48px 1fr; gap: var(--s-4); padding: var(--s-5) 0; border-bottom: 1px solid var(--line-paper); }
.pillars .mono { color: var(--tan-deep); font-size: .8rem; padding-top: .3rem; }
.pillars h3 { font-size: var(--text-lg); font-weight: 600; letter-spacing: -.01em; }
.pillars p { color: var(--on-paper-2, #5b5552); margin-top: .25rem; }
.guide-img { position: relative; margin: 0; }
.guide-img img { width: 100%; aspect-ratio: 4/3.4; object-fit: cover; border-radius: var(--r-md); }
.guide-img figcaption { position: absolute; left: var(--s-5); bottom: var(--s-5); background: var(--ink); color: #fff; padding: var(--s-5) var(--s-6); border-radius: var(--r-md); display: flex; align-items: center; gap: var(--s-4); max-width: 320px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.guide-img figcaption b { font-size: 2.6rem; font-weight: 600; letter-spacing: -.03em; color: var(--tan-bright); line-height: 1; }
.guide-img figcaption b sup { font-size: .5em; }
.guide-img figcaption span { font-size: .9rem; color: var(--on-dark-2); line-height: 1.35; }
.statement-solo blockquote { max-width: 18ch; }
.statement { min-height: 64vh; }
@media (max-width: 960px) { .guide { grid-template-columns: 1fr; gap: var(--s-12); } }
@media (max-width: 860px) { .statement { padding-top: 30vh; } }
.paper-2 .lede { color: var(--on-paper-2); }
.page-hero .ph-img img { opacity: .62; object-position: 70% 50%; }
.page-hero .ph-img::after { background: linear-gradient(90deg, var(--ink) 22%, rgba(28,25,26,.72) 50%, rgba(28,25,26,.2)), linear-gradient(0deg, rgba(28,25,26,.6), transparent 40%); }
.page-hero .ph-img ~ .ph-traces { display: none; }
/* hero C: let the copper floor path read */
.hero-media img { object-position: 62% 60%; opacity: .85; }
.hero-media::after { background: linear-gradient(90deg, rgba(28,25,26,.92) 8%, rgba(28,25,26,.6) 38%, rgba(28,25,26,.12) 68%, rgba(28,25,26,.3)), linear-gradient(180deg, rgba(28,25,26,.55), transparent 30%, transparent 70%, var(--ink) 99%); }
@media (max-width: 860px) { .hero-media img { object-position: 70% 60%; opacity: .42; } }