/* Valeor shared site system — pristine × frontier */
:root {
  --bg: #f7f5f1;
  --bg-elevated: #fffcf8;
  --ink: #121110;
  --ink-soft: #2c2a27;
  --stone: #7a756e;
  --stone-soft: #a39e96;
  --line: rgba(18, 17, 16, 0.1);
  --line-strong: rgba(18, 17, 16, 0.18);
  --accent: #8b7355;
  --accent-deep: #5c4c38;
  --panel: #121110;
  --panel-fg: #f4f1ea;
  --panel-muted: #a8a29a;
  --radius: 2px;
  --max: 1120px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --font-display: "Instrument Serif", Georgia, serif;
  --font-sans: "Instrument Sans", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent-deep); }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 500; letter-spacing: -0.01em; line-height: 1.12; color: var(--ink); }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

.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;
}

.wrap {
  width: min(100% - (var(--pad) * 2), var(--max));
  margin-inline: auto;
}

/* Wordmark */
.wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}
.wordmark:hover { color: var(--ink); }
.wordmark--light { color: var(--panel-fg); }
.wordmark--light:hover { color: var(--panel-fg); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}
.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}
.nav a {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--stone);
}
.nav a:hover { color: var(--ink); }
.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink) !important;
  background: transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.nav__cta:hover {
  background: var(--ink);
  color: var(--bg) !important;
  border-color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 1rem;
  height: 1px;
  background: var(--ink);
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem var(--pad) 1.25rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open { display: flex; }
  .nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .nav__cta {
    margin-top: 0.75rem;
    justify-content: center;
    border-bottom: 1px solid var(--line-strong);
  }
}

/* Eyebrow / labels */
.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn--primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.btn--on-dark {
  background: var(--panel-fg);
  color: var(--ink);
  border-color: var(--panel-fg);
}
.btn--on-dark:hover {
  background: transparent;
  color: var(--panel-fg);
  border-color: color-mix(in srgb, var(--panel-fg) 45%, transparent);
}
.btn--ghost-on-dark {
  background: transparent;
  color: var(--panel-fg);
  border-color: color-mix(in srgb, var(--panel-fg) 35%, transparent);
}
.btn--ghost-on-dark:hover {
  border-color: var(--panel-fg);
}

/* Hero */
.hero {
  padding: clamp(3.5rem, 10vw, 7rem) 0 clamp(3rem, 8vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}
.hero__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}
@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 1.35fr 0.85fr; }
}
.hero h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.6rem);
  margin-top: 1rem;
  max-width: 14ch;
  font-weight: 500;
}
.hero__lede {
  color: var(--ink-soft);
  font-size: 1.125rem;
  max-width: 38ch;
  line-height: 1.7;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.hero__aside {
  border-left: 1px solid var(--line-strong);
  padding-left: 1.5rem;
  color: var(--stone);
  font-size: 0.95rem;
  max-width: 34ch;
}
.hero__aside strong {
  display: block;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-bottom: 1px solid var(--line);
}
.section__head {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 3rem);
  max-width: 52ch;
}
.section__head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}
.section__head p {
  color: var(--stone);
  font-size: 1.05rem;
}

/* Proof chain */
.proof-chain {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 800px) {
  .proof-chain { grid-template-columns: repeat(4, 1fr); }
}
.proof-step {
  background: var(--bg-elevated);
  padding: 1.5rem 1.35rem 1.75rem;
}
.proof-step__n {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.85rem;
}
.proof-step h3 {
  font-size: 1.55rem;
  margin-bottom: 0.65rem;
}
.proof-step p {
  color: var(--stone);
  font-size: 0.95rem;
}

/* Process */
.process {
  display: grid;
  gap: 0;
  counter-reset: process;
}
@media (min-width: 800px) {
  .process { grid-template-columns: repeat(4, 1fr); }
}
.process__item {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  counter-increment: process;
}
@media (min-width: 800px) {
  .process__item {
    padding: 1.75rem 1.35rem 0 0;
    border-top: none;
    border-right: 1px solid var(--line);
  }
  .process__item:last-child { border-right: none; padding-right: 0; }
  .process__item:first-child { padding-left: 0; }
}
.process__item::before {
  content: counter(process, decimal-leading-zero);
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.85rem;
}
.process__item h3 {
  font-size: 1.65rem;
  margin-bottom: 0.55rem;
}
.process__item p {
  color: var(--stone);
  font-size: 0.95rem;
  max-width: 28ch;
}

/* Vertical cards */
.verticals {
  display: grid;
  gap: 1rem;
}
@media (min-width: 800px) {
  .verticals { grid-template-columns: repeat(3, 1fr); }
}
.vertical-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.6rem 1.4rem 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  min-height: 100%;
  transition: border-color 0.2s var(--ease), transform 0.25s var(--ease);
}
.vertical-card:hover {
  border-color: var(--ink);
  color: inherit;
  transform: translateY(-2px);
}
.vertical-card__label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.vertical-card h3 {
  font-size: 1.85rem;
}
.vertical-card p {
  color: var(--stone);
  font-size: 0.95rem;
  flex: 1;
}
.vertical-card__link {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 600;
}

/* Principle strip */
.principle {
  background: var(--panel);
  color: var(--panel-fg);
  border-bottom: none;
}
.principle .section__head h2,
.principle h2 { color: var(--panel-fg); }
.principle .section__head p,
.principle p { color: var(--panel-muted); }
.principle-quote {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  line-height: 1.2;
  max-width: 22ch;
  color: var(--panel-fg);
  font-weight: 500;
}
.principle-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}
@media (min-width: 800px) {
  .principle-grid { grid-template-columns: 1.1fr 1fr; align-items: end; }
}
.principle-list {
  display: grid;
  gap: 1.15rem;
}
.principle-list li {
  padding-top: 1.15rem;
  border-top: 1px solid color-mix(in srgb, var(--panel-fg) 14%, transparent);
  color: var(--panel-muted);
  font-size: 0.95rem;
}
.principle-list strong {
  display: block;
  color: var(--panel-fg);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

/* Loop / product blocks (real estate) */
.loop {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 800px) {
  .loop { grid-template-columns: repeat(3, 1fr); }
}
.loop__item {
  background: var(--bg-elevated);
  padding: 1.6rem 1.4rem;
}
.loop__item h3 {
  font-size: 1.5rem;
  margin: 0.5rem 0 0.65rem;
}
.loop__item p { color: var(--stone); font-size: 0.95rem; }
.loop__arrow {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.products {
  display: grid;
  gap: 1rem;
}
@media (min-width: 800px) {
  .products { grid-template-columns: 1.2fr 1fr; }
}
.product {
  padding: 1.7rem 1.5rem;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
}
.product--muted {
  background: transparent;
}
.product__tag {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.product h3 {
  font-size: 1.75rem;
  margin-bottom: 0.65rem;
}
.product p { color: var(--stone); font-size: 0.95rem; }
.product ul {
  margin-top: 1.1rem;
  display: grid;
  gap: 0.55rem;
}
.product li {
  position: relative;
  padding-left: 1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.product li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 0.35rem;
  height: 1px;
  background: var(--accent);
}

.note {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
  color: var(--ink-soft);
  font-size: 0.92rem;
}

/* Contact */
.contact {
  text-align: left;
}
.contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-top: 1.75rem;
}
.contact__mail {
  font-family: var(--font-display);
  font-size: 1.65rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.15rem;
}
.contact__mail:hover {
  border-color: var(--ink);
  color: var(--ink);
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 3rem;
  background: var(--panel);
  color: var(--panel-muted);
}
.site-footer__inner {
  display: grid;
  gap: 1.75rem;
}
@media (min-width: 800px) {
  .site-footer__inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}
.site-footer a {
  color: var(--panel-fg);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.site-footer a:hover { color: var(--accent); }
.site-footer__meta {
  font-size: 0.85rem;
  max-width: 42ch;
  line-height: 1.6;
}
.site-footer__copy {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid color-mix(in srgb, var(--panel-fg) 12%, transparent);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--panel-muted) 80%, transparent);
}

/* Fine classical intrusion: thin rules + proportion */
.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}