/* ============================================================
   Blackwood Holdings — Design System
   Dark, editorial, platinum-on-ink private investment group site
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400;1,500&family=Jost:wght@300;400;500;600&display=swap');

:root {
  --ink: #000000;
  --ink-alt: #0a0a0a;
  --ink-raised: #131313;
  --paper: #f4f4f2;
  --paper-dim: rgba(244, 244, 242, 0.66);
  --paper-faint: rgba(244, 244, 242, 0.4);
  --silver: #e8e8e6;
  --silver-light: #ffffff;
  --silver-deep: #9a9a96;
  --line: rgba(232, 232, 230, 0.18);
  --line-soft: rgba(244, 244, 242, 0.08);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Jost', 'Helvetica Neue', Arial, sans-serif;

  --max: 1240px;
  --pad: clamp(24px, 5vw, 80px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* faint grid/vignette texture over the whole page */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 0%, transparent 75%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--silver-light);
  font-weight: 500;
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--silver-light);
  display: inline-block;
}
.eyebrow.center {
  justify-content: center;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--paper);
  margin: 0;
  letter-spacing: 0.01em;
}

.lede {
  font-size: 18px;
  color: var(--paper-dim);
  font-weight: 300;
  max-width: 640px;
}

/* ---------------- Header ---------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  width: 100%;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
}
.site-header.scrolled {
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  padding-bottom: 22px;
}
.brand { display: flex; align-items: center; }
.brand-logo {
  height: 30px;
  width: auto;
}
.site-nav {
  display: flex;
  gap: 40px;
}
.site-nav a {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-dim);
  font-weight: 500;
  transition: color 0.25s ease;
}
.site-nav a:hover { color: var(--silver-light); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 110;
}
.menu-toggle span {
  display: block;
  height: 1px;
  width: 100%;
  background: var(--paper);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(232,232,230,0.06), transparent 70%),
    var(--ink);
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero-logo {
  width: min(720px, 78vw);
  height: auto;
  margin: 36px 0 40px;
}
.hero-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--paper-dim);
  max-width: 620px;
  font-weight: 400;
}

.scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.scroll-cue span {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--silver-deep), transparent);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue {
  0% { transform: scaleY(0.3); opacity: 0.2; transform-origin: top; }
  50% { transform: scaleY(1); opacity: 1; transform-origin: top; }
  100% { transform: scaleY(0.3); opacity: 0.2; transform-origin: bottom; }
}

/* ---------------- Sections ---------------- */
.section {
  padding: 130px 0;
  position: relative;
  z-index: 2;
}
.section-alt {
  background: var(--ink-alt);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.section h2 {
  font-size: clamp(28px, 4vw, 44px);
  max-width: 820px;
  margin-top: 20px;
  line-height: 1.25;
}
.section .lede {
  margin-top: 24px;
}
#positioning .lede { max-width: 720px; }

/* ---------------- Philosophy pillars ---------------- */
.pillars {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
}
.pillar {
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.pillar-num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--silver-deep);
}
.pillar h3 {
  font-size: 28px;
  margin: 14px 0 16px;
}
.pillar p {
  color: var(--paper-dim);
  font-size: 15.5px;
  font-weight: 300;
}

/* ---------------- Companies ---------------- */
.companies {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.company {
  display: block;
  border: 1px solid var(--line);
  padding: 36px 30px;
  transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
}
.company:hover {
  border-color: var(--silver-deep);
  transform: translateY(-4px);
  background: rgba(255,255,255,0.02);
}
.company-top h3 {
  font-size: 26px;
  margin-bottom: 10px;
}
.company-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver-deep);
  font-weight: 500;
  margin-bottom: 20px;
}
.company p {
  color: var(--paper-dim);
  font-size: 15px;
  font-weight: 300;
  min-height: 96px;
}
.company-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
  font-weight: 500;
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  width: 100%;
}
.company-link i { font-style: normal; transition: transform 0.25s ease; }
.company:hover .company-link i { transform: translateX(4px); }

/* ---------------- Contact ---------------- */
.contact-wrap { text-align: left; }
.contact-email {
  display: inline-block;
  margin-top: 36px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--silver-light);
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.contact-email:hover { border-color: var(--silver-light); }
.contact-location {
  margin-top: 18px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-faint);
}

/* ---------------- Footer ---------------- */
.site-footer {
  padding: 56px 0;
  border-top: 1px solid var(--line-soft);
  position: relative;
  z-index: 2;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--paper);
}
.footer-brand span { color: var(--silver-deep); }
.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
  transition: color 0.25s ease;
}
.footer-links a:hover { color: var(--silver-light); }
.footer-copy {
  width: 100%;
  font-size: 12px;
  color: var(--paper-faint);
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

/* ---------------- Reveal-on-scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .pillars { grid-template-columns: 1fr; gap: 40px; }
  .companies { grid-template-columns: 1fr; }
  .company p { min-height: 0; }
}

@media (max-width: 720px) {
  .site-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: rgba(0,0,0,0.97);
    backdrop-filter: blur(10px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 32px;
    padding: 0 48px;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    border-left: 1px solid var(--line-soft);
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav a { font-size: 14px; }
  .menu-toggle { display: flex; }

  .section { padding: 90px 0; }
  .hero-inner { padding-top: 100px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}