/* ==========================================================================
   Bristlecone Ventures — bristleventures.com
   Brand tokens derived from the official Bristlecone Brand Guidelines.
   Display face: high-end serif (stand-in for Domaine Text — see README).
   Body face:    Montserrat (brand secondary font).
   ========================================================================== */

:root {
  /* Brand palette */
  --green:        #1F3516;   /* Dark Green  — primary */
  --green-700:    #2c4a20;
  --green-200:    #9BAE9F;   /* Sage tint   — additional */
  --brown:        #734432;   /* Earthy Brown — primary accent */
  --brown-600:    #8a5440;
  --sand:         #D9C8B4;   /* Additional  */
  --sand-100:     #efe8dd;
  --paper:        #FAF8F4;   /* near-white ground */
  --ink:          #1b1b18;
  --muted:        #5d6157;

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --serif: "Cormorant Garamond", "EB Garamond", Georgia, "Times New Roman", serif;
  --sans:  "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --shadow: 0 18px 50px -24px rgba(31, 53, 22, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }

/* ----- Typography ----- */
.display {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--green);
}
h1.display { font-size: clamp(2.6rem, 6.5vw, 5rem); }
h2.display { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h3.display { font-size: clamp(1.5rem, 3vw, 2.1rem); }

.eyebrow {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--brown);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--brown);
  display: inline-block;
}

.lede { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--muted); max-width: 60ch; }

/* ----- Layout ----- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* Topographic contour divider — the signature motif (altitude lines) */
.contour {
  height: 64px;
  width: 100%;
  background-image: url("../img/contour.svg");
  background-repeat: repeat-x;
  background-position: center;
  background-size: auto 100%;
  opacity: 0.5;
}

/* ----- Buttons ----- */
.btn {
  --bg: var(--green);
  --fg: var(--paper);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.95rem 1.6rem;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--bg);
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}
.btn:hover { transform: translateY(-2px); background: var(--green-700); }
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--brown { --bg: var(--brown); }
.btn--brown:hover { background: var(--brown-600); }
.btn--ghost {
  --bg: transparent; --fg: var(--green);
  border-color: var(--green);
}
.btn--ghost:hover { background: var(--green); color: var(--paper); }
.btn--light {
  --bg: transparent; --fg: var(--paper);
  border-color: rgba(250,248,244,0.5);
}
.btn--light:hover { background: var(--paper); color: var(--green); border-color: var(--paper); }

/* ----- Header / Nav ----- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), padding 0.4s var(--ease);
  padding-block: 1.1rem;
  /* Scrim keeps the logo + nav legible while the hero text scrolls underneath */
  background: linear-gradient(to bottom, rgba(16,24,11,0.96) 0%, rgba(16,24,11,0.9) 40%, rgba(16,24,11,0.7) 75%, rgba(16,24,11,0) 100%);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand img { height: 46px; width: auto; transition: opacity 0.3s var(--ease); }
.brand .logo-color { display: none; }
.nav { display: flex; align-items: center; gap: clamp(1.2rem, 3vw, 2.6rem); }
.nav a {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper);
  position: relative;
  padding-block: 0.3rem;
  transition: color 0.3s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 1.5px; background: currentColor;
  transition: width 0.3s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav .nav-cta { color: var(--paper); border: 1px solid rgba(250,248,244,0.5); padding: 0.55rem 1.1rem; border-radius: 2px; }
.nav .nav-cta::after { display: none; }
.nav .nav-cta:hover { background: var(--paper); color: var(--green); }

/* Scrolled / solid header state (used on inner pages + after scroll) */
.site-header.solid { background: var(--paper); box-shadow: 0 1px 0 rgba(31,53,22,0.08); padding-block: 0.8rem; }
.site-header.solid .logo-white { display: none; }
.site-header.solid .logo-color { display: block; }
.site-header.solid .nav a { color: var(--green); }
.site-header.solid .nav .nav-cta { color: var(--green); border-color: var(--green); }
.site-header.solid .nav .nav-cta:hover { background: var(--green); color: var(--paper); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 0.4rem; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--paper); margin: 5px 0; transition: 0.3s var(--ease); }
.site-header.solid .nav-toggle span { background: var(--green); }

/* ----- Hero ----- */
.hero { position: relative; min-height: 100svh; display: grid; align-items: center; color: var(--paper); overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: -2; }
.hero__bg video, .hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to right, rgba(20,30,14,0.92) 0%, rgba(20,30,14,0.62) 45%, rgba(20,30,14,0.35) 100%),
    linear-gradient(to top, rgba(20,30,14,0.7), rgba(20,30,14,0.1));
}
.hero__inner { padding-block: 9rem 4rem; max-width: 46rem; }
.hero h1 { color: var(--paper); margin-block: 1rem 1.4rem; }
.hero h1 em { font-style: italic; color: var(--sand); }
.hero p { color: rgba(250,248,244,0.86); font-size: clamp(1.05rem, 1.6vw, 1.3rem); max-width: 48ch; margin-bottom: 2.2rem; }
.hero .eyebrow { color: var(--sand); }
.hero .eyebrow::before { background: var(--sand); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* ----- Intro / About ----- */
.intro { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.intro__copy h2 { margin-block: 1.1rem 1.4rem; }
.intro__copy p + p { margin-top: 1rem; }
.intro__aside {
  border-left: 2px solid var(--sand);
  padding-left: 2rem;
}
.intro__aside p { font-family: var(--serif); font-size: clamp(1.3rem, 2.2vw, 1.75rem); line-height: 1.4; color: var(--green); font-style: italic; }
.intro__aside cite { display: block; margin-top: 1rem; font-family: var(--sans); font-style: normal; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--brown); }

/* ----- Stats ----- */
.stats { background: var(--green); color: var(--paper); }
.stats__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3rem); text-align: center; }
.stat .num { font-family: var(--serif); font-weight: 600; font-size: clamp(2.8rem, 6vw, 4.5rem); line-height: 1; color: var(--sand); }
.stat .label { display: block; margin-top: 0.6rem; font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(250,248,244,0.75); }

/* ----- Services ----- */
.services__head { max-width: 60ch; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.services__head h2 { margin-block: 1rem 1rem; }
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.svc {
  position: relative;
  padding: 2.2rem 2rem 2.4rem;
  background: #fff;
  border: 1px solid rgba(31,53,22,0.1);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.svc::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--green), var(--brown));
  transform: scaleX(0); transform-origin: left; transition: transform 0.45s var(--ease);
}
.svc:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.svc:hover::before { transform: scaleX(1); }
.svc__num { font-family: var(--serif); font-size: 0.95rem; color: var(--brown); letter-spacing: 0.1em; }
.svc h3 { margin-block: 1rem 0.7rem; }
.svc p { color: var(--muted); font-size: 0.98rem; }
.svc__icon { width: 40px; height: 40px; color: var(--green); margin-bottom: 0.4rem; }

/* ----- Sectors (Acquisitions) ----- */
.sectors { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.sector {
  position: relative; min-height: 340px; border-radius: 4px; overflow: hidden;
  display: flex; align-items: flex-end; color: var(--paper);
  isolation: isolate;
}
.sector img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform 0.7s var(--ease); }
.sector::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to top, rgba(20,30,14,0.9), rgba(20,30,14,0.25) 60%, rgba(20,30,14,0.05)); }
.sector:hover img { transform: scale(1.06); }
.sector__body { padding: 2rem; }
.sector h3 { color: var(--paper); }
.sector p { color: rgba(250,248,244,0.85); font-size: 0.95rem; margin-top: 0.3rem; }
.sector__tag { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sand); }
.sector--wide { grid-column: 1 / -1; min-height: 220px; }
.sector--note {
  background: var(--sand-100); color: var(--ink); align-items: center;
  border: 1px solid rgba(115,68,50,0.2);
}
.sector--note::after { display: none; }
.sector--note .sector__body { padding: 2.4rem; }
.sector--note p { color: var(--muted); }

/* ----- FAQ ----- */
.faq { max-width: 820px; margin-inline: auto; }
.faq__item { border-bottom: 1px solid rgba(31,53,22,0.14); }
.faq__q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 1.5rem 3rem 1.5rem 0; position: relative;
  font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.4rem); color: var(--green); font-weight: 600;
}
.faq__q::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-family: var(--sans); font-weight: 400; font-size: 1.6rem; color: var(--brown);
  transition: transform 0.3s var(--ease);
}
.faq__item.open .faq__q::after { transform: translateY(-50%) rotate(45deg); }
.faq__a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq__a p { padding-bottom: 1.5rem; color: var(--muted); }

/* ----- Contact / CTA band ----- */
.cta-band { position: relative; background: var(--green); color: var(--paper); overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; inset: 0; opacity: 0.12; z-index: 0;
  background-image: url("../img/contour-light.svg"); background-size: cover; background-position: center;
}
.cta-band .wrap { position: relative; z-index: 1; text-align: center; display: grid; justify-items: center; gap: 1.4rem; }
.cta-band h2 { color: var(--paper); }
.cta-band p { color: rgba(250,248,244,0.85); max-width: 52ch; }

/* ----- Footer ----- */
.site-footer { background: #16240f; color: rgba(250,248,244,0.8); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; align-items: start; }
.site-footer .foot-logo { height: 48px; width: auto; margin-bottom: 1.2rem; }
.site-footer p { font-size: 0.92rem; max-width: 36ch; }
.foot-h { font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sand); margin-bottom: 1rem; }
.site-footer a:hover { color: var(--paper); }
.foot-list li + li { margin-top: 0.6rem; }
.foot-bottom { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgba(250,248,244,0.15); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; font-size: 0.82rem; color: rgba(250,248,244,0.6); }

/* ----- Reveal on scroll ----- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ----- Responsive ----- */
@media (max-width: 900px) {
  .intro { grid-template-columns: 1fr; }
  .intro__aside { border-left: 0; border-top: 2px solid var(--sand); padding-left: 0; padding-top: 1.5rem; }
  .svc-grid { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .sectors { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .nav { position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px); flex-direction: column; align-items: flex-start; justify-content: center; gap: 1.8rem; background: var(--green); padding: 2rem; transform: translateX(100%); transition: transform 0.4s var(--ease); }
  .nav.open { transform: none; }
  .nav a, .site-header.solid .nav a { color: var(--paper); font-size: 1rem; }
  .nav .nav-cta, .site-header.solid .nav .nav-cta { color: var(--paper); border-color: rgba(250,248,244,0.5); }
  .nav-toggle { display: block; z-index: 60; }
  .nav-toggle.open span { background: var(--paper); }
  .nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2){ opacity: 0; }
  .nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, .btn:focus-visible { outline: 3px solid var(--brown); outline-offset: 3px; }