/* uSurge LLC — site stylesheet. Slate, off-white, dark crimson. */
:root {
  --slate-900: #23272e;
  --slate-800: #2e333b;
  --slate-700: #393e46;
  --slate-600: #4a5059;
  --slate-500: #6b7280;
  --slate-300: #b4b9c2;
  --slate-200: #d6d9df;
  --slate-100: #e9ebee;
  --paper: #f3f4f6;
  --white: #ffffff;
  --crimson-900: #5c0f18;
  --crimson-700: #8a1a27;
  --crimson-500: #b0273a;
  --ink: var(--slate-900);
  --muted: var(--slate-500);
  --line: var(--slate-200);
  --font-sans: "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1120px;
  --gutter: clamp(20px, 5vw, 48px);
  --radius: 4px;
}


* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--crimson-700); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--crimson-900); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--crimson-500); outline-offset: 3px; }

h1, h2, h3 { font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.num, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--crimson-700);
  margin-bottom: 0.9rem;
}
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* Header */
.site-header {
  background: var(--slate-700);
  color: var(--slate-100);
  border-bottom: 1px solid var(--slate-800);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand img { height: 26px; width: auto; display: block; }
.brand .cube { width: 34px; height: 34px; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; }
.nav a { color: var(--slate-200); text-decoration: none; font-size: 0.95rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--white); border-bottom: 2px solid var(--crimson-500); }

/* Hero */
.hero { background: var(--slate-700); color: var(--slate-100); padding: clamp(56px, 9vw, 120px) 0 clamp(48px, 7vw, 96px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 48px; align-items: center; }
.hero h1 { color: var(--white); margin-bottom: 1rem; font-size: clamp(1.9rem, 4.2vw, 3.1rem); }
.nowrap { white-space: nowrap; }
@media (max-width: 600px) { .nowrap { white-space: normal; } }
.hero .lede { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--slate-200); max-width: 34em; }
.hero .cube-stage { display: flex; justify-content: center; }
.hero .cube-stage svg { width: min(100%, 360px); height: auto; }
.hero .eyebrow { color: #e08a95; }
.trust { list-style: none; padding: 0; margin: 1.8rem 0 0; display: flex; flex-wrap: wrap; gap: 10px 26px; font-family: var(--font-mono); font-size: 0.86rem; color: var(--slate-300); }
.trust li::before { content: "▪"; color: var(--crimson-500); margin-right: 8px; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: var(--radius);
  background: var(--crimson-700); color: var(--white) !important; text-decoration: none;
  font-weight: 600; font-size: 0.95rem; border: 1px solid var(--crimson-900);
}
.btn:hover { background: var(--crimson-900); }
.btn.ghost { background: transparent; color: var(--slate-100) !important; border-color: var(--slate-500); }
.btn.ghost:hover { border-color: var(--slate-200); }
.btn.dark { background: var(--slate-700); border-color: var(--slate-900); }
.btn.dark:hover { background: var(--slate-900); }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.8rem; }

/* Sections */
section { padding: clamp(48px, 7vw, 96px) 0; }
section + section { border-top: 1px solid var(--line); }
.section-head { max-width: 46em; margin-bottom: 2.4rem; }
.grid { display: grid; gap: 22px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 26px 22px; display: flex; flex-direction: column; gap: 8px;
}
.card h3 { margin: 0; }
.card .tag {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--slate-500); display: inline-flex; align-items: center; gap: 8px;
}
.card .tag.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--crimson-500); }
.card .price { font-family: var(--font-mono); font-size: 0.95rem; color: var(--ink); margin-top: auto; padding-top: 8px; }
.card p { margin: 0; color: var(--slate-600); }
.card a.more { margin-top: 4px; font-size: 0.95rem; }

.lanes .card { border-top: 3px solid var(--slate-700); }
.lanes .card.lead { border-top-color: var(--crimson-700); }

.deal dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 32px; margin: 0; }
.deal dt { font-weight: 600; margin-bottom: 4px; }
.deal dd { margin: 0; color: var(--slate-600); }

.statement {
  background: var(--slate-100); border-left: 3px solid var(--crimson-700); padding: 16px 20px;
  font-size: 0.95rem; color: var(--slate-600); margin-top: 2rem;
}

/* Policy pages */
.doc { background: var(--white); }
.doc .wrap { max-width: 780px; padding-top: clamp(40px, 6vw, 72px); padding-bottom: clamp(40px, 6vw, 72px); }
.doc h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.doc h2 { font-size: 1.35rem; margin-top: 2.2em; }
.doc h3 { font-size: 1.05rem; margin-top: 1.6em; }
.doc .meta { font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted); margin-bottom: 2rem; }
.doc ul, .doc ol { padding-left: 1.3em; }
.doc li { margin-bottom: 0.4em; }
.doc table { width: 100%; border-collapse: collapse; font-size: 0.95rem; margin: 1em 0 1.5em; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.doc th { font-weight: 600; background: var(--slate-100); }
.doc .callout { background: var(--slate-100); border-left: 3px solid var(--slate-700); padding: 14px 18px; margin: 1.4em 0; }
.policy-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.9rem; margin-bottom: 2rem; }
.policy-nav a { color: var(--slate-600); }
.policy-nav a[aria-current="page"] { color: var(--crimson-700); font-weight: 600; }

/* Footer */
.site-footer { background: var(--slate-900); color: var(--slate-300); padding: 48px 0 32px; font-size: 0.93rem; }
.site-footer .wrap { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 32px; }
.site-footer h4 { color: var(--white); font-size: 0.95rem; margin: 0 0 10px; font-weight: 600; }
.site-footer a { color: var(--slate-200); }
.site-footer .muted { color: inherit; }
.site-footer a:hover { color: var(--white); }
.site-footer address { font-style: normal; line-height: 1.7; }
.site-footer ul { list-style: none; padding: 0; margin: 0; line-height: 1.9; }
.site-footer .legal { grid-column: 1 / -1; border-top: 1px solid var(--slate-700); padding-top: 18px; margin-top: 8px; font-size: 0.82rem; color: var(--slate-500); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

/* Cube animation: blocks converge into the cube */
.cube-anim .drift { animation: settle 2.6s cubic-bezier(.2,.7,.2,1) both; }
.cube-anim .drift:nth-child(2) { animation-delay: .25s; }
.cube-anim .drift:nth-child(3) { animation-delay: .5s; }
.cube-anim .drift:nth-child(4) { animation-delay: .75s; }
.cube-anim .drift:nth-child(5) { animation-delay: 1s; }
@keyframes settle {
  from { transform: translate(var(--dx), var(--dy)); opacity: .55; }
  to   { transform: translate(0, 0); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) { .cube-anim .drift { animation: none; } }

/* Responsive */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero .cube-stage { order: -1; }
  .hero .cube-stage svg { width: min(70%, 260px); }
  .grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer .wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; padding-top: 14px; padding-bottom: 14px; gap: 12px; }
  .nav { justify-content: flex-start; gap: 14px 18px; }
  .grid.two, .grid.three { grid-template-columns: 1fr; }
  .deal dl { grid-template-columns: 1fr; }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .doc table { font-size: 0.88rem; }
  .doc th, .doc td { padding: 8px 8px; }
}

/* v5: restrained static assembly, clear service scope and persistent navigation. */
:root {
  --crimson-900: #42131e;
  --crimson-700: #751d30;
  --crimson-500: #a84153;
  --muted: #606875;
}
html { scroll-padding-top: 94px; }
section[id] { scroll-margin-top: 84px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #2b2f37;
  border-bottom-color: #ffffff12;
  box-shadow: 0 4px 18px #151a2020;
}
.site-header .wrap { min-height: 72px; }
.brand .cube { width: 42px; height: 42px; }
.brand img.cube { object-fit: contain; border-radius: 2px; }
.hero .cube-stage img.original-cube { width: min(100%, 310px); height: auto; border-radius: 3px; box-shadow: 0 24px 60px #10121830; }
[data-product="signs"] > .more { margin-top: auto; padding-top: 20px; }
.nav a { min-height: 44px; display: inline-flex; align-items: center; border-bottom: 2px solid transparent; }
.nav-toggle { display: none; }
.hero {
  background: linear-gradient(118deg, #292d35 0%, #343840 60%, #382e36 100%);
  padding: clamp(48px, 6vw, 80px) 0 0;
}
.hero .wrap { grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr); gap: 36px; }
.hero h1 { font-size: clamp(2rem, 3.7vw, 3rem); line-height: 1.17; letter-spacing: -.035em; }
.hero h1 span { color: #e6e8ec; }
.hero-promise { font-size: 1rem; color: #c8ccd3; line-height: 1.75; max-width: 38em; margin: 1.3rem 0 1.4rem; }
.hero .lede { font-size: 1rem; color: #c8ccd3; margin-bottom: .75rem; }
.hero .eyebrow { color: #ce8897; font-size: .76rem; }
.service-list { list-style: none; padding: 0; margin: 0; font-size: .98rem; }
.service-list li { padding: .28rem 0 .28rem 1.2rem; position: relative; }
.service-list li::before { content: ""; position: absolute; left: 0; top: .9rem; width: 5px; height: 5px; background: #9f4254; }
.hero .cube-stage svg { width: min(100%, 445px); overflow: visible; }
.hero .cube-stage { align-self: center; }
.hero .trust-wrap { display: block; margin-top: 46px; }
.trust {
  margin: 0;
  padding: 22px 0 24px;
  border-top: 1px solid #ffffff13;
  font-family: var(--font-sans);
  font-size: .79rem;
  color: #ccd0d7;
  gap: 12px 22px;
  justify-content: space-between;
}
.trust li::before { color: #b36a7b; }
.btn { transition: background-color .18s, border-color .18s, transform .18s; }
.btn:active { transform: translateY(1px); }
.product-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 22px; }
.product-grid > .card { grid-column: span 6; padding: 28px; border: 1px solid #23272e1c; border-radius: 5px; gap: 14px; }
.product-grid > .card:nth-child(1), .product-grid > .card:nth-child(6) { grid-column: span 7; }
.product-grid > .card:nth-child(2), .product-grid > .card:nth-child(5) { grid-column: span 5; }
.card-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card .tag { font-size: .75rem; letter-spacing: .025em; }
.block-number { font: .8rem var(--font-mono); color: #9198a2; }
.product-grid .card h3 { font-size: 1.45rem; letter-spacing: -.035em; }
.product-grid .card-hook { color: #2e333b; font-size: 1.03rem; font-weight: 600; line-height: 1.5; }
.product-grid .card > p:not(.card-hook) { font-size: .97rem; line-height: 1.75; }
.product-grid .card .card-detail { margin-top: auto; padding-top: 4px; font-size: .78rem; color: #69717d; }
.card a.more { align-self: flex-start; font-weight: 600; padding: 8px 0; margin-top: 0; min-height: 44px; }
.product-grid .card.lead {
  background: linear-gradient(136deg, #292d34 0%, #372831 60%, #541c2b 100%);
  border-color: #43222d;
  color: #f2f3f5;
}
.product-grid .card.lead p, .product-grid .card.lead .tag, .product-grid .card.lead .block-number { color: #cbd0d7; }
.product-grid .card.lead .card-hook, .product-grid .card.lead a { color: #f2f3f5; }
.books-card { background: #e9ebee; }
.hands-card { background: #fdfdfd; }
.scope-note { margin: 26px 0 0; max-width: 86ch; font-size: .78rem; color: #636b77; line-height: 1.8; }
.section-head .muted { font-size: 1.02rem; line-height: 1.8; }
.deal { background: #e7e9ed; }
.deal dl { gap: 32px 44px; }
.deal dl > div { border-top: 1px solid #23272e24; padding-top: 18px; }
.deal dt { font-size: 1rem; margin-bottom: 8px; }
.deal dd { font-size: .97rem; line-height: 1.8; }
.statement { border-left: 0; border-radius: 4px; background: #f3f4f6; color: #505864; }
.practice-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; }
.practice-grid .cta-row { align-items: center; margin-top: 24px; }
.practice-grid .more { padding: 12px 0; font-size: .9rem; }
.site-footer .legal { color: #aab1bc; }
.book-intro { background: #e7e9ed; }
.book-intro .wrap { max-width: 1000px; }
.book-intro h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
.book-subtitle { font-size: 1.2rem; color: #58616e; margin-bottom: 24px; }
.book-intro .lede { max-width: 55ch; }
.book-intro .cta-row { align-items: center; }
.book-options { background: #e7e9ed; }
.book-options .card { gap: 14px; }
.book-options .card p { font-size: .95rem; }
@media (min-width: 761px) and (max-width: 1000px) {
  .nav { gap: 12px; }
  .nav a { font-size: .81rem; }
  .hero .wrap { grid-template-columns: 1.3fr .7fr; gap: 18px; }
  .hero h1 { font-size: 2.1rem; }
  .hero .cube-stage { order: 0; }
  .hero .cube-stage svg { width: 100%; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 84px; }
  .site-header .wrap { flex-direction: row; align-items: center; padding-top: 0; padding-bottom: 0; min-height: 66px; gap: 16px; }
  .brand .cube { width: 37px; height: 37px; }
  .brand img { height: 24px; }
  .nav-toggle {
    display: inline-flex; align-items: center; gap: 16px; min-height: 44px; padding: 8px 12px;
    border: 1px solid #ffffff38; border-radius: 3px; background: transparent;
    color: #f3f4f6; font: .84rem var(--font-sans);
  }
  .nav-toggle span { font-size: 1.3rem; line-height: 1; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 12px var(--gutter) 20px; background: #2b2f37; border-bottom: 1px solid #ffffff2a; box-shadow: 0 12px 20px #151a2040; flex-direction: column; gap: 0; }
  .nav.is-open { display: flex; }
  .nav a { width: 100%; min-height: 48px; font-size: .95rem; }
  .hero { padding-top: 38px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 18px; }
  .hero .cube-stage { order: 0; }
  .hero .cube-stage svg { width: min(72%, 290px); max-height: 285px; }
  .hero h1 { font-size: clamp(1.9rem, 7.8vw, 2.65rem); }
  .hero-promise { font-size: .92rem; line-height: 1.8; }
  .hero .lede, .service-list { font-size: .93rem; }
  .desktop-break { display: none; }
  .hero .cta-row { gap: 12px; }
  .hero .btn { padding: 12px 16px; font-size: .83rem; }
  .hero .trust-wrap { margin-top: 8px; }
  .trust { justify-content: flex-start; gap: 12px 20px; font-size: .76rem; }
  .product-grid { grid-template-columns: 1fr; gap: 18px; }
  .product-grid > .card, .product-grid > .card:nth-child(n) { grid-column: 1; padding: 23px; }
  .product-grid .card h3 { font-size: 1.35rem; }
  .product-grid .card > p:not(.card-hook) { font-size: .94rem; }
  .card .tag { font-size: .75rem; letter-spacing: 0; }
  .practice-grid { grid-template-columns: 1fr; gap: 22px; }
  .deal dl { grid-template-columns: 1fr; gap: 24px; }
  .section-head { margin-bottom: 28px; }
  .section-head .muted { font-size: .97rem; }
  .book-options .grid.three { grid-template-columns: 1fr; }
}