/* =========================================================
   PHANTRION HOLDINGS
   Register: direct, authoritative, established.
   Berkshire Hathaway meets a national mandate. No hype.
   ========================================================= */

:root {
  --soil:   #1C1813;   /* near-black, grave */
  --loam:   #463C30;
  --grain:  #F3EEE3;   /* paper */
  --wheat:  #E4D9C2;
  --gold:   #B07A2E;   /* muted, sparing */
  --steel:  #5A5346;   /* muted secondary */
  --line:   #D8CCB4;
  --line-dk:#332C23;

  --display: "Lora", Georgia, "Times New Roman", serif;
  --body:    "Hanken Grotesk", system-ui, -apple-system, sans-serif;

  --max: 1080px;
  --gap: clamp(1.5rem, 4vw, 3.25rem);
}

* { box-sizing: border-box; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

body {
  margin: 0; background: var(--grain); color: var(--soil);
  font-family: var(--body); font-size: 1.05rem; line-height: 1.65;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gap); }

h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.12; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.45rem); }
p { margin: 0 0 1.1em; max-width: 64ch; }
.lead { font-size: clamp(1.12rem, 1.9vw, 1.35rem); color: var(--loam); line-height: 1.6; }
.narrow { max-width: 58ch; }

.eyebrow {
  font-family: var(--body); font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold);
  margin: 0 0 1.4rem; display: inline-block;
  border-bottom: 1px solid var(--gold); padding-bottom: 0.5rem;
}
a { color: inherit; }

/* ---------- header ---------- */
.site-head { border-bottom: 1px solid var(--line); background: var(--grain); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 1rem; }
.brand {
  font-family: var(--display); font-weight: 600; font-size: 1.18rem;
  letter-spacing: 0.16em; text-transform: uppercase; text-decoration: none; color: var(--soil); white-space: nowrap;
}
.nav { display: flex; gap: clamp(1rem, 2.4vw, 2.1rem); }
.nav a { text-decoration: none; color: var(--steel); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.4rem 0; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a:focus-visible, .nav a.here { color: var(--soil); border-bottom-color: var(--gold); }

/* mobile menu (no JS) */
.menu > summary { list-style: none; display: none; cursor: pointer; padding: 0.5rem; }
.menu > summary::-webkit-details-marker { display: none; }
.menu > summary span, .menu > summary span::before, .menu > summary span::after {
  display: block; width: 24px; height: 2px; background: var(--soil); position: relative; transition: 0;
}
.menu > summary span::before { content: ""; position: absolute; top: -7px; }
.menu > summary span::after  { content: ""; position: absolute; top: 7px; }
@media (max-width: 760px) {
  .menu > summary { display: inline-flex; }
  .menu .nav { position: absolute; right: var(--gap); top: 72px; z-index: 30; flex-direction: column; gap: 0;
    background: var(--grain); border: 1px solid var(--line); min-width: 220px; }
  .menu .nav a { padding: 0.85rem 1.1rem; border-bottom: 1px solid var(--line); }
  .menu .nav a:last-child { border-bottom: none; }
  .menu:not([open]) .nav { display: none; }
}

/* ---------- hero (typographic, grave) ---------- */
.hero { background: var(--soil); color: var(--grain); }
.hero .wrap { padding: clamp(4rem, 11vw, 8rem) var(--gap) clamp(3.5rem, 9vw, 6.5rem); }
.hero .eyebrow { color: var(--wheat); border-color: var(--gold); }
.hero h1 { color: var(--grain); max-width: 18ch; }
.hero .lead { color: color-mix(in srgb, var(--grain) 82%, var(--loam)); max-width: 52ch; }
.hero .kicker { font-family: var(--display); font-size: clamp(1.3rem, 2.6vw, 1.9rem); color: var(--wheat); margin-top: 1.6rem; max-width: 30ch; }

/* ---------- sections ---------- */
section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.rule { border-top: 1px solid var(--line); }
.dark { background: var(--soil); color: var(--grain); }
.dark h1, .dark h2, .dark h3 { color: var(--grain); }
.dark p, .dark .lead { color: color-mix(in srgb, var(--grain) 80%, var(--loam)); }
.dark .eyebrow { color: var(--wheat); }

/* signature declarative line */
.declare { font-family: var(--display); font-size: clamp(1.6rem, 3.6vw, 2.5rem); line-height: 1.25; max-width: 24ch; margin: 0; }
.dark .declare { color: var(--grain); }

/* ---------- columns / pillars / criteria ---------- */
.cols { display: grid; grid-template-columns: 1fr; gap: clamp(1.6rem, 3vw, 2.6rem); margin-top: 2.4rem; }
@media (min-width: 760px) { .cols.two { grid-template-columns: 1fr 1fr; } .cols.three { grid-template-columns: repeat(3,1fr); } }
.item { padding-top: 1.2rem; border-top: 2px solid var(--gold); }
.item h3 { margin-bottom: 0.4rem; }
.item p { margin: 0; color: var(--loam); }
.dark .item p { color: color-mix(in srgb, var(--grain) 78%, var(--loam)); }

/* definition rows (criteria) */
.spec { margin-top: 2.4rem; border-top: 1px solid var(--line); }
.spec .row { display: grid; grid-template-columns: 1fr; gap: 0.2rem; padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
@media (min-width: 640px) { .spec .row { grid-template-columns: 200px 1fr; gap: 1.5rem; align-items: baseline; } }
.spec .k { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); }
.spec .v { margin: 0; color: var(--loam); max-width: none; }

/* PE vs Phantrion contrast */
.vs { display: grid; grid-template-columns: 1fr; gap: 1.25rem; margin-top: 2.4rem; }
@media (min-width: 720px) { .vs { grid-template-columns: 1fr 1fr; } }
.vs .col { padding: clamp(1.5rem, 3vw, 2.2rem); border: 1px solid var(--line); }
.vs .col.them { background: transparent; }
.vs .col.us { background: var(--soil); color: var(--grain); border-color: var(--soil); }
.vs .col h3 { margin-top: 0; }
.vs .col.us h3 { color: var(--grain); }
.vs ul { margin: 0; padding-left: 1.1rem; }
.vs li { margin-bottom: 0.5rem; }
.vs .col.them li { color: var(--steel); }
.vs .col.us li { color: color-mix(in srgb, var(--grain) 82%, var(--loam)); }

/* ---------- buttons ---------- */
.cta-row { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: 0.9rem; }
.btn { display: inline-block; text-decoration: none; background: var(--gold); color: #1a1206; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.82rem; padding: 0.95rem 1.7rem; border: 1px solid var(--gold); }
.btn:hover, .btn:focus-visible { background: #97681f; border-color: #97681f; }
.btn.ghost { background: transparent; color: var(--soil); border-color: var(--soil); }
.dark .btn.ghost { color: var(--grain); border-color: var(--grain); }
a.line { color: var(--gold); text-decoration: none; border-bottom: 1px solid var(--line); font-weight: 700; }
.dark a.line { border-bottom-color: var(--line-dk); }
a.line:hover { border-bottom-color: var(--gold); }

/* contact block */
.reach { margin-top: 2rem; }
.reach .big { font-family: var(--display); font-size: clamp(1.4rem, 3vw, 2rem); }
.reach .big a { text-decoration: none; border-bottom: 1px solid var(--gold); }

/* ---------- footer ---------- */
.site-foot { background: var(--soil); color: var(--grain); padding: clamp(3rem, 6vw, 4.5rem) 0; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; justify-content: space-between; }
.site-foot .brand { color: var(--grain); }
.site-foot nav { display: flex; flex-direction: column; gap: 0.55rem; }
.site-foot nav a { color: color-mix(in srgb, var(--grain) 78%, var(--loam)); text-decoration: none; font-size: 0.84rem; letter-spacing: 0.06em; text-transform: uppercase; }
.site-foot nav a:hover { color: var(--grain); }
.site-foot .ent { width: 100%; border-top: 1px solid var(--line-dk); padding-top: 1.4rem; margin-top: 0.5rem; }
.site-foot .ent p { font-size: 0.8rem; color: color-mix(in srgb, var(--grain) 62%, var(--loam)); margin: 0 0 0.4rem; max-width: none; letter-spacing: 0.03em; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.fillme { background: rgba(176,122,46,0.18); border-bottom: 1px dashed var(--gold); padding: 0 0.25em; }