/* =========================================================
   Valley Corp Construction
   Design tokens, base resets, and component styles
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  /* Colour */
  --bg: #F7F5F2;
  --paper: #FFFFFF;
  --ink: #141414;
  --ink-soft: #3D3B37;
  --ink-mute: #7A766E;
  --line: #E3DDD2;
  --line-soft: #EFEAE0;
  --accent: #8B6F47;
  --accent-deep: #5C4A2E;
  --accent-soft: #E8DECC;
  --overlay: rgba(20, 20, 20, 0.55);
  --overlay-soft: rgba(20, 20, 20, 0.25);

  /* Type */
  --font-serif: 'Fraunces', 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Type scale (fluid via clamp) */
  --t-xs:   clamp(0.72rem, 0.70rem + 0.10vw, 0.78rem);
  --t-sm:   clamp(0.82rem, 0.80rem + 0.10vw, 0.88rem);
  --t-base: clamp(0.95rem, 0.92rem + 0.15vw, 1.05rem);
  --t-lg:   clamp(1.08rem, 1.04rem + 0.20vw, 1.20rem);
  --t-xl:   clamp(1.30rem, 1.20rem + 0.50vw, 1.55rem);
  --t-2xl:  clamp(1.65rem, 1.45rem + 1.00vw, 2.20rem);
  --t-3xl:  clamp(2.20rem, 1.80rem + 2.00vw, 3.20rem);
  --t-4xl:  clamp(2.80rem, 2.10rem + 3.50vw, 4.60rem);
  --t-5xl:  clamp(3.40rem, 2.40rem + 5.00vw, 6.20rem);

  /* Spacing */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4.5rem;
  --s-7: 6.5rem;
  --s-8: 9rem;

  /* Layout */
  --container: 1280px;
  --container-wide: 1440px;
  --container-narrow: 920px;
  --gutter: clamp(1.25rem, 1rem + 1.5vw, 2.25rem);
  --radius: 2px;
  --radius-lg: 8px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --speed-fast: 160ms;
  --speed: 320ms;
  --speed-slow: 520ms;
}

/* ---------- Resets ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, video, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; padding: 0; }
a { color: inherit; text-decoration: none; }
input, textarea, select { font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- Base ---------- */
body {
  font-family: var(--font-sans);
  font-size: var(--t-base);
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-variation-settings: "opsz" 144, "wght" 450;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--ink);
}
h1 { font-size: var(--t-5xl); letter-spacing: -0.02em; }
h2 { font-size: var(--t-4xl); }
h3 { font-size: var(--t-2xl); }
h4 { font-size: var(--t-xl); font-variation-settings: "opsz" 24, "wght" 500; }

p { color: var(--ink-soft); }
p.lede { font-size: var(--t-lg); line-height: 1.55; color: var(--ink-soft); max-width: 60ch; }

::selection { background: var(--ink); color: var(--bg); }

/* Skip link */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--bg);
  padding: 0.75rem 1rem; z-index: 999;
}
.skip:focus { left: 1rem; top: 1rem; }

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-wide { width: 100%; max-width: var(--container-wide); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { width: 100%; max-width: var(--container-narrow); margin-inline: auto; padding-inline: var(--gutter); }

section { padding-block: clamp(3rem, 6vw, 6.5rem); }
section + section { padding-top: 0; }

.section-tag {
  font-family: var(--font-sans);
  font-size: var(--t-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.section-tag::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--accent-deep);
}
.section-tag.center { justify-content: center; }
.section-head { margin-bottom: clamp(2rem, 3vw, 3.25rem); display: grid; gap: 1rem; }
.section-head.center { text-align: center; justify-items: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 245, 242, 0.85);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); background: rgba(247, 245, 242, 0.95); }

.site-header .bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.75rem;
  color: var(--ink);
}
.brand .mark {
  width: 30px; height: 30px;
  display: inline-grid; place-items: center;
  color: var(--ink);
}
.brand .name { display: grid; line-height: 1; }
.brand .name .top {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.32rem;
  font-variation-settings: "opsz" 36, "wght" 500;
  letter-spacing: 0.005em;
}
.brand .name .sub {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: var(--ink-mute);
  margin-top: 4px;
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 2.5rem); }
.nav a {
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  position: relative;
  padding-block: 0.5rem;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px; background: var(--ink);
  transition: width var(--speed) var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav a[aria-current="page"] { color: var(--ink); }

.nav-cta {
  font-size: var(--t-sm); font-weight: 500;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--ink);
  background: transparent; color: var(--ink);
  transition: background var(--speed) var(--ease), color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}
.nav-cta:hover { background: var(--ink); color: #FFFFFF; border-color: var(--ink); }
.nav-cta::after { display: none; }

.menu-toggle { display: none; }

@media (max-width: 880px) {
  .nav { display: none; position: absolute; top: 80px; left: 0; right: 0;
    background: var(--bg); border-top: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: var(--s-3) var(--gutter) var(--s-4); }
  .nav a { padding: 0.9rem 0; border-bottom: 1px solid var(--line-soft); font-size: var(--t-lg); font-family: var(--font-serif); font-variation-settings: "opsz" 36, "wght" 450; }
  .nav a::after { display: none; }
  .nav-cta { margin-top: 1rem; text-align: center; padding: 0.9rem 1rem; }
  .site-header.is-open .nav { display: flex; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border: 1px solid var(--line); border-radius: var(--radius); }
  .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
    content: ""; display: block; width: 18px; height: 1.4px; background: var(--ink); position: relative;
  }
  .menu-toggle span::before { position: absolute; left: 0; top: -6px; }
  .menu-toggle span::after  { position: absolute; left: 0; top:  6px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  font-size: var(--t-sm); font-weight: 500; letter-spacing: 0.02em;
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--bg);
  transition: transform var(--speed-fast) var(--ease), background var(--speed) var(--ease), color var(--speed) var(--ease);
  cursor: pointer;
}
.btn:hover { background: transparent; color: var(--ink); }
.btn.secondary { background: transparent; color: var(--ink); }
.btn.secondary:hover { background: var(--ink); color: var(--bg); }
.btn.on-image { border-color: var(--bg); background: var(--bg); color: var(--ink); }
.btn.on-image.secondary { background: transparent; color: var(--bg); }
.btn.on-image.secondary:hover { background: var(--bg); color: var(--ink); }
.btn.on-image:hover { background: transparent; color: var(--bg); }
.btn .arrow { transition: transform var(--speed) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: clamp(560px, 86vh, 820px);
  display: grid; align-items: end;
  overflow: hidden;
  isolation: isolate;
}
.hero .media {
  position: absolute; inset: 0;
  z-index: -2;
}
.hero .media img, .hero .media video {
  width: 100%; height: 100%; object-fit: cover; object-position: center;
}
.hero::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(20,20,20,0.25) 0%, rgba(20,20,20,0.10) 35%, rgba(20,20,20,0.65) 100%);
}
.hero .inner {
  width: 100%;
  padding-block: clamp(4rem, 8vw, 7rem);
  color: var(--bg);
}
.hero .inner .eyebrow {
  font-size: var(--t-xs); font-weight: 500;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(247, 245, 242, 0.85);
  margin-bottom: 1.25rem;
  display: inline-flex; align-items: center; gap: 0.8rem;
}
.hero .inner .eyebrow::before { content: ""; width: 24px; height: 1px; background: rgba(247, 245, 242, 0.7); }
.hero h1 { color: var(--bg); max-width: 18ch; }
.hero .sub { color: rgba(247, 245, 242, 0.92); font-size: var(--t-lg); max-width: 56ch; margin-top: 1.5rem; }
.hero .ctas { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: 0.85rem; }

/* Hero video pause control */
.hero .video-toggle {
  position: absolute; right: var(--gutter); top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(247, 245, 242, 0.18);
  border: 1px solid rgba(247, 245, 242, 0.45);
  color: var(--bg);
  display: inline-grid; place-items: center;
  transition: background var(--speed) var(--ease);
}
.hero .video-toggle:hover { background: rgba(247, 245, 242, 0.32); }
.hero .video-toggle svg { width: 14px; height: 14px; }

/* Subdued page hero (interior pages) */
.hero.compact { min-height: clamp(440px, 60vh, 600px); }

/* ---------- Stats strip ---------- */
.stats {
  background: var(--ink); color: var(--bg);
  padding-block: clamp(3rem, 5vw, 4.5rem);
}
.stats .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
}
.stat .n {
  font-family: var(--font-serif);
  font-size: var(--t-4xl);
  font-variation-settings: "opsz" 144, "wght" 400;
  line-height: 1; letter-spacing: -0.02em;
  color: var(--bg);
}
.stat .l {
  margin-top: 0.85rem;
  font-size: var(--t-sm);
  letter-spacing: 0.04em;
  color: rgba(247, 245, 242, 0.72);
  max-width: 28ch;
}

/* ---------- Two column block ---------- */
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.two-col.reverse { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
.two-col.reverse .text { order: 2; }
.two-col .text > * + * { margin-top: 1.25rem; }
.two-col .figure img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.two-col .figure figcaption { margin-top: 0.85rem; font-size: var(--t-sm); color: var(--ink-mute); letter-spacing: 0.02em; }
@media (max-width: 820px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; }
  .two-col.reverse .text { order: 0; }
  .two-col .figure img { aspect-ratio: 4 / 3; }
}

/* ---------- Service cards ---------- */
.service-grid {
  display: grid; gap: clamp(1.25rem, 2vw, 1.75rem);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.service {
  position: relative;
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}
.service:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -22px rgba(20,20,20,0.18); }
.service .img { aspect-ratio: 4 / 3; overflow: hidden; }
.service .img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--speed-slow) var(--ease);
}
.service:hover .img img { transform: scale(1.04); }
.service .body { padding: clamp(1.25rem, 2vw, 1.6rem) clamp(1.25rem, 2vw, 1.6rem) clamp(1.4rem, 2.2vw, 1.8rem); }
.service h3 { font-size: var(--t-xl); margin-bottom: 0.5rem; }
.service p { font-size: var(--t-sm); color: var(--ink-soft); }
.service .more {
  margin-top: 1rem; display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: var(--t-xs); font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink);
}
.service .more .arrow { transition: transform var(--speed) var(--ease); }
.service:hover .more .arrow { transform: translateX(4px); }

/* ---------- Project cards ---------- */
.project-grid {
  display: grid; gap: clamp(1.5rem, 2vw, 2rem);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.project { display: block; }
.project .img { aspect-ratio: 4 / 5; overflow: hidden; background: var(--line-soft); }
.project .img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--speed-slow) var(--ease);
}
.project:hover .img img { transform: scale(1.03); }
.project .meta {
  margin-top: 1rem;
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
}
.project .tag { font-size: var(--t-xs); letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-deep); }
.project .place { font-size: var(--t-xs); letter-spacing: 0.08em; color: var(--ink-mute); }
.project h3 { font-size: var(--t-xl); margin-top: 0.4rem; }
.project .desc { font-size: var(--t-sm); color: var(--ink-soft); margin-top: 0.5rem; }

.project.large .img { aspect-ratio: 16 / 11; }

/* ---------- Approach steps ---------- */
.steps {
  display: grid; gap: clamp(1.25rem, 2vw, 2rem);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.step {
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
}
.step .n {
  font-family: var(--font-serif);
  font-size: var(--t-lg);
  color: var(--accent-deep);
  font-variation-settings: "opsz" 24, "wght" 500;
}
.step h4 { margin-top: 0.85rem; }
.step p { margin-top: 0.6rem; font-size: var(--t-sm); }

/* ---------- Testimonial ---------- */
.quote {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}
.quote blockquote {
  font-family: var(--font-serif);
  font-size: var(--t-3xl);
  line-height: 1.18; letter-spacing: -0.012em;
  font-variation-settings: "opsz" 144, "wght" 400;
  color: var(--ink);
  max-width: 24ch;
  margin: 0 auto;
  text-align: center;
}
.quote .cite { display: block; margin-top: 1.5rem; text-align: center; font-size: var(--t-sm); color: var(--ink-mute); letter-spacing: 0.05em; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--bg);
  padding-block: clamp(3.5rem, 6vw, 5.5rem);
}
.cta-band h2 { color: var(--bg); max-width: 22ch; }
.cta-band p { color: rgba(247, 245, 242, 0.78); max-width: 52ch; margin-top: 1rem; }
.cta-band .row { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem, 4vw, 4rem); align-items: end; }
.cta-band .actions { display: flex; flex-wrap: wrap; gap: 0.85rem; justify-content: flex-end; }
@media (max-width: 760px) {
  .cta-band .row { grid-template-columns: 1fr; }
  .cta-band .actions { justify-content: flex-start; }
}

/* ---------- Forms ---------- */
.form {
  display: grid; gap: 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}
.form .row { display: grid; gap: 1.1rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .form .row { grid-template-columns: 1fr; } }
.form label {
  display: grid; gap: 0.4rem;
  font-size: var(--t-xs); font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-soft);
}
.form input, .form textarea, .form select {
  width: 100%;
  font-size: var(--t-base); font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem;
  border-radius: 0;
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none; border-color: var(--ink); background: var(--paper);
}
.form textarea { min-height: 160px; resize: vertical; }
.form .hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.form .submit { justify-self: start; }
.form .status { font-size: var(--t-sm); }
.form .status[data-state="ok"]   { color: var(--accent-deep); }
.form .status[data-state="err"]  { color: #a32a2a; }

/* ---------- Contact details list ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-list { display: grid; gap: 1.4rem; }
.contact-list dt {
  font-size: var(--t-xs); font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-mute);
}
.contact-list dd {
  margin: 0.35rem 0 0;
  font-family: var(--font-serif);
  font-size: var(--t-xl);
  color: var(--ink);
  font-variation-settings: "opsz" 36, "wght" 450;
}
.contact-list dd a { border-bottom: 1px solid var(--line); }
.contact-list dd a:hover { border-bottom-color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding-block: clamp(3rem, 5vw, 4.5rem) clamp(2rem, 3vw, 2.5rem);
}
.site-footer .grid {
  display: grid; gap: clamp(2rem, 4vw, 3rem);
  grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
}
@media (max-width: 880px) { .site-footer .grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .site-footer .grid { grid-template-columns: 1fr; } }
.site-footer h5 {
  font-size: var(--t-xs); font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-mute);
  margin-bottom: 1rem;
}
.site-footer ul li { margin-bottom: 0.55rem; font-size: var(--t-sm); color: var(--ink-soft); }
.site-footer ul li a:hover { color: var(--ink); }
.site-footer .brand .name .top { font-size: 1.32rem; }
.site-footer .blurb { color: var(--ink-soft); font-size: var(--t-sm); margin-top: 1rem; max-width: 36ch; }
.site-footer .meta {
  border-top: 1px solid var(--line);
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  padding-top: 1.5rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: var(--t-xs); color: var(--ink-mute); letter-spacing: 0.04em;
}
.site-footer .meta a { border-bottom: 1px solid transparent; transition: border-color var(--speed) var(--ease); }
.site-footer .meta a:hover { border-bottom-color: var(--ink-soft); }

/* ---------- Utility ---------- */
.muted { color: var(--ink-mute); }
.divider { width: 100%; height: 1px; background: var(--line); }
.eyebrow {
  font-size: var(--t-xs); font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent-deep);
}
.rule {
  width: 56px; height: 1px; background: var(--accent-deep);
  margin-block: 1.25rem 1.5rem;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 720ms var(--ease), transform 720ms var(--ease); will-change: opacity, transform; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }