/* =========================================================================
   IMPERUM — page layout (home + about)
   ========================================================================= */

.nav__word { font-family: var(--sans); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.14em; color: var(--bone); }

/* ============================ HERO ===================================== */
.hero { position: relative; z-index: var(--z-base); padding-top: clamp(3rem, 7vw, 6rem); padding-bottom: var(--sp-12); }
.hero__inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__title { font-size: var(--fs-display); margin-top: var(--sp-4); }
.hero__title span { display: block; }
.hero__title span[data-reveal] { transition-delay: calc(var(--d, 0) * 110ms); }
.hero__em { position: relative; font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 40; color: var(--bone); }
.hero__em::after {
  content: ""; position: absolute; left: 0; right: 6%; bottom: 0.08em; height: 3px;
  background: linear-gradient(90deg, var(--ember), var(--ember-deep)); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; animation: dev-underline 900ms var(--dev-ease) 700ms forwards;
}
@keyframes dev-underline { to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce){ .hero__em::after { transform: scaleX(1); animation: none; } }

.hero__sub { margin-top: var(--sp-5); font-size: var(--fs-body-lg); color: var(--ash); max-width: 46ch; line-height: 1.55; }
.hero__line { margin-top: var(--sp-5); display: flex; align-items: center; gap: 0.6rem; font-size: var(--fs-small); color: var(--bone-dim); }
.hero__line .tick { width: 7px; height: 7px; border-radius: 50%; background: var(--ember); box-shadow: var(--ember-glow); flex: none; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-6); }
.hero__panel { display: flex; justify-content: flex-end; }

@media (max-width: 940px){
  .hero__inner { grid-template-columns: 1fr; gap: var(--sp-8); }
  .hero__panel { justify-content: flex-start; }
  .triage { max-width: 520px; }
}

/* ============================ Generic blocks =========================== */
.lead { font-size: var(--fs-body-lg); color: var(--ash); max-width: 56ch; line-height: 1.55; margin-top: var(--sp-4); }
.lead b { color: var(--bone); font-weight: 600; }
.center { text-align: center; }
.center .seclabel { justify-content: center; }
.center-lead { margin-inline: auto; }
.em { color: var(--ember-soft); }

.section h2.display { font-size: var(--fs-h2); }

/* ============================ Problem ================================== */
.problem__title { font-size: var(--fs-display-sm); }
.problem__rows { display: flex; flex-direction: column; gap: var(--sp-4); margin-top: var(--sp-8); }
.prow {
  display: grid; grid-template-columns: minmax(180px, 240px) 1fr; align-items: center; gap: var(--sp-6);
  padding: 1.4rem 1.6rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--basalt);
}
.prow .big { font-family: var(--mono); font-weight: 700; font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1; color: var(--bone); letter-spacing: -0.02em; }
.prow .big .u { color: var(--ember); font-size: 0.6em; margin-left: 1px; }
.prow p { font-size: var(--fs-body); color: var(--ash); line-height: 1.5; }
.prow p b { color: var(--bone); font-weight: 600; }
.kicker { margin-top: var(--sp-8); font-size: clamp(1.15rem, 2.4vw, 1.6rem); font-weight: 500; color: var(--bone-dim); }
@media (max-width: 560px){ .prow { grid-template-columns: 1fr; gap: var(--sp-2); } }

/* ============================ Split =================================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split__title { font-size: var(--fs-h2); }
@media (max-width: 900px){ .split { grid-template-columns: 1fr; } }

/* ============================ Gateway row ============================= */
.gateway__row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-3); margin-top: var(--sp-8); }
.gw {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: var(--fs-small); letter-spacing: 0.04em; color: var(--bone-dim);
  padding: 0.8rem 1.2rem; border: 1px solid var(--line); border-radius: 999px; background: var(--basalt);
}
.gw .num { color: var(--ember-soft); font-size: var(--fs-micro); }

/* ============================ ABOUT page ============================== */
.about-hero { position: relative; z-index: var(--z-base); padding-top: clamp(3rem, 7vw, 6rem); padding-bottom: var(--sp-12); }
.about-hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-hero__title { font-size: var(--fs-display-sm); margin-top: var(--sp-4); }
.about-hero__sub { margin-top: var(--sp-5); font-size: var(--fs-body-lg); color: var(--ash); max-width: 48ch; line-height: 1.55; }

/* helmet stage */
.helmet {
  position: relative; aspect-ratio: 1 / 1; width: 100%; max-width: 480px; margin-inline: auto;
  display: grid; place-items: center;
  perspective: 1100px;
}
.helmet__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.helmet__fallback {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain;
  transform-style: preserve-3d; will-change: transform;
  /* warm the cool render toward the bronze-artifact world */
  filter:
    sepia(0.58) saturate(1.28) hue-rotate(-14deg) brightness(0.9) contrast(1.08)
    drop-shadow(0 34px 60px rgba(0,0,0,0.62)) drop-shadow(0 0 30px rgba(200,67,46,0.2));
}
.helmet__glow {
  position: absolute; inset: 8%; z-index: -1; border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(200,67,46,0.22), rgba(201,162,75,0.06) 45%, transparent 70%);
  filter: blur(8px);
}
/* live reticle ring + bearing readout overlaid on the helmet */
.helmet__reticle { position: absolute; inset: 0; pointer-events: none; opacity: 0.7; color: var(--line-strong); }
.helmet__bearing {
  position: absolute; top: -1.7rem; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em; color: var(--stone); display: flex; gap: var(--sp-5); white-space: nowrap;
}
.helmet__bearing b { color: var(--sage-soft); font-weight: 500; }
.helmet__plinth { position: absolute; left: 50%; bottom: -3.4rem; transform: translateX(-50%); text-align: center; width: 100%; }
.helmet__plinth .cap { font-family: var(--display); font-style: italic; font-size: 1rem; color: var(--ash); font-variation-settings: "opsz" 40; }
.helmet__plinth .no { font-family: var(--mono); font-size: var(--fs-eyebrow); letter-spacing: 0.16em; color: var(--stone); margin-top: 4px; }

@media (max-width: 900px){
  .about-hero__inner { grid-template-columns: 1fr; }
  .helmet { max-width: 360px; }
}

/* mission + principles */
.mission { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(2rem,5vw,4rem); }
.mission__statement { font-family: var(--display); font-weight: 400; font-size: clamp(1.6rem, 3.2vw, 2.4rem); line-height: 1.12; color: var(--bone); font-variation-settings: "opsz" 144; }
.mission__statement .em { color: var(--ember-soft); }
.mission__body p { color: var(--ash); margin-bottom: var(--sp-4); }
.mission__body p b { color: var(--bone); font-weight: 600; }
@media (max-width: 820px){ .mission { grid-template-columns: 1fr; } }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); margin-top: var(--sp-8); }
.principle { position: relative; padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--basalt); }
.principle .no { font-family: var(--mono); font-size: var(--fs-eyebrow); color: var(--ember-soft); letter-spacing: 0.1em; }
.principle h4 { margin-top: 0.7rem; font-size: 1.15rem; font-weight: 600; color: var(--bone); }
.principle p { margin-top: 0.45rem; font-size: var(--fs-small); color: var(--ash); line-height: 1.5; }
@media (max-width: 820px){ .principles { grid-template-columns: 1fr; } }

/* ============================ NEWS page =============================== */
.feature {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 0; overflow: hidden;
  transition: border-color var(--quick);
}
.feature:hover { border-color: var(--line-strong); }
.feature__art {
  position: relative; min-height: 320px; display: grid; place-items: center;
  background:
    radial-gradient(120% 100% at 30% 20%, rgba(200,67,46,0.16), transparent 60%),
    radial-gradient(100% 100% at 80% 90%, rgba(201,162,75,0.08), transparent 60%),
    var(--umber-soft);
  border-right: 1px solid var(--line);
}
.feature__art span { font-size: 1.4rem; letter-spacing: 0.3em; color: var(--bone-dim); opacity: 0.6; }
.feature__body { padding: clamp(1.5rem, 3vw, 2.5rem); }
.feature__title { font-size: clamp(1.4rem, 2.6vw, 2rem); margin: var(--sp-3) 0 var(--sp-4); line-height: 1.1; font-weight: 400; }
.feature__meta { margin-top: var(--sp-5); color: var(--ember-soft); font-size: var(--fs-small); letter-spacing: 0.08em; }
@media (max-width: 820px){ .feature { grid-template-columns: 1fr; } .feature__art { min-height: 180px; border-right: none; border-bottom: 1px solid var(--line); } }

.news-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: var(--sp-6); }
.news-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px){ .news-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px){ .news-grid { grid-template-columns: 1fr; } }
.ncard { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--basalt); transition: border-color var(--quick), transform var(--quick) var(--quick-ease); }
.ncard:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.ncard__art { height: 150px; }
.ncard__art.a { background: radial-gradient(120% 120% at 30% 20%, rgba(200,67,46,0.18), transparent 60%), var(--umber-soft); }
.ncard__art.b { background: radial-gradient(120% 120% at 70% 30%, rgba(91,160,126,0.14), transparent 60%), var(--umber-soft); }
.ncard__art.c { background: radial-gradient(120% 120% at 50% 30%, rgba(201,162,75,0.16), transparent 60%), var(--umber-soft); }
.ncard__b { padding: 1.2rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.ncard__meta { display: flex; justify-content: space-between; font-size: var(--fs-eyebrow); letter-spacing: 0.06em; color: var(--stone); }
.ncard__b h3 { font-size: var(--fs-body); font-weight: 600; color: var(--bone); line-height: 1.25; font-family: var(--sans); letter-spacing: -0.01em; }
.ncard__b p { font-size: var(--fs-small); color: var(--ash); line-height: 1.5; }
.ncard__read { margin-top: auto; font-size: var(--fs-eyebrow); letter-spacing: 0.1em; color: var(--ember-soft); }