/* ============================================================
   Sentinel — site styles  (Direction B · Product)
   ============================================================ */
:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --line: #e8e6e0;
  --line-2: #d4d1c8;
  --ink: #16140f;
  --ink-2: #3a3830;
  --ink-3: #76736a;
  --ink-4: #a8a59b;
  --ember: #e85a1a;
  --ember-deep: #c64812;
  --ember-tint: #fde9dc;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.005em;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 48px; }

/* ====== NAV ====== */
nav.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,250,248,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
nav.top .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; letter-spacing: -0.02em; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: url("assets/ladris-ember.png") center/cover;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
}
.ladris-tag {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  margin-left: 6px;
}
.nav-links { display: flex; gap: 4px; font-size: 14px; color: var(--ink-2); margin-left: auto; margin-right: 16px; }
.nav-links a {
  transition: color .15s ease, background .15s ease;
  padding: 7px 14px;
  border-radius: 8px;
  position: relative;
}
.nav-links a:hover { color: var(--ink); background: rgba(0,0,0,0.035); }
.nav-links a.active { color: var(--ink); font-weight: 500; }
.nav-links a.active::after {
  content: ""; position: absolute;
  left: 14px; right: 14px; bottom: -2px; height: 2px;
  background: var(--ember); border-radius: 2px;
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 500;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s ease;
  letter-spacing: -0.01em;
}
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { color: var(--ink); background: var(--surface); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: #2a2820; }
.btn-store {
  background: var(--ink); color: var(--bg);
  padding: 12px 18px;
  border-radius: 10px;
  display: inline-flex; align-items: center; gap: 12px;
}
.btn-store .stack { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; }
.btn-store .stack .small { font-size: 10px; opacity: 0.72; text-transform: uppercase; letter-spacing: 0.05em; }
.btn-store .stack .big { font-size: 14px; font-weight: 500; }
.btn-store .glyph { font-size: 20px; }
.btn-store:hover { background: #2a2820; }
.btn-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 12px;
  transition: transform .15s ease, opacity .15s ease;
}
.btn-badge img {
  height: 52px;
  width: auto;
  display: block;
  border-radius: 12px;
}
.btn-badge:hover { transform: translateY(-1px); opacity: 0.9; }

/* phone screenshot fill */
.shot { width: 100%; height: 100%; object-fit: cover; object-position: top center; }

/* ====== HERO ====== */
.hero {
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
}
.hero .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ember-deep);
  background: var(--ember-tint);
  padding: 6px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
}
.pill::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 0 4px rgba(232,90,26,0.18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(232,90,26,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(232,90,26,0.05); }
}
h1.headline {
  font-size: 76px;
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0 0 28px;
  color: var(--ink);
  text-wrap: balance;
}
h1.headline .accent { color: var(--ember); }
.lede {
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 520px;
  margin: 0 0 40px;
}
.cta-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.micro {
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex; gap: 24px; align-items: center; flex-wrap: wrap;
}
.micro .dot { width: 4px; height: 4px; background: var(--ember); border-radius: 50%; }

/* hero visual */
.hero-visual {
  position: relative;
  height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-phone {
  position: absolute;
  width: 248px;
  aspect-ratio: 1350 / 2760;
}
.hero-phone.back {
  z-index: 1;
  transform: translateX(-86px) translateY(-26px);
  filter: drop-shadow(0 30px 50px rgba(0,0,0,0.22));
}
.hero-phone.front {
  z-index: 2;
  transform: translateX(86px) translateY(26px);
  filter: drop-shadow(-18px 36px 60px rgba(0,0,0,0.32));
}
.shot-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background:
    repeating-linear-gradient(45deg, #e7e1d4 0 10px, #ddd6c6 10px 20px);
  color: var(--ink-3);
  text-align: center;
}
.shot-placeholder .ph-label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.shot-placeholder .ph-hint {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--ink-3);
}

/* ====== PRESS / MEDIA COVERAGE STRIP ====== */
.press {
  background: transparent;
  padding: 68px 0 4px;
}
.press .logos {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.press-logo {
  color: var(--ink);
  opacity: 0.66;
  transition: opacity .15s ease;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}
.press-logo:hover { opacity: 1; }
.press-logo .masthead {
  font-family: "UnifrakturMaguntia", "Times New Roman", serif;
  font-weight: 400;
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0.5px;
}
.press-logo .masthead-img {
  height: 45px;
  width: auto;
  display: block;
}
.press-logo .sfgate-img {
  height: 35px;
}
.press-logo .sfgate-mark {
  font-family: "Archivo Black", var(--sans);
  font-weight: 400;
  font-size: 26px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

/* ====== STATS / TRUST STRIP (legacy) ====== */
.stats {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.stats .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--line);
}
.stat {
  padding: 32px 32px;
  border-right: 1px solid var(--line);
}
.stat .num { font-size: 36px; font-weight: 500; letter-spacing: -0.03em; color: var(--ink); }
.stat .num .accent { color: var(--ember); }
.stat .lbl {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-top: 4px;
}

/* ====== FEATURES ====== */
section.feat { padding: 140px 0; }
.section-head { max-width: 720px; margin-bottom: 72px; }
.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ember);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.section-tag .num {
  background: var(--ember-tint);
  color: var(--ember-deep);
  padding: 3px 8px;
  border-radius: 4px;
}
h2.feat-title {
  font-size: 56px;
  line-height: 1.0;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0 0 20px;
  color: var(--ink);
  text-wrap: balance;
}
h2.feat-title .accent { color: var(--ember); }
.feat-sub {
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
}

.feat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.feat-grid.trio { grid-template-columns: repeat(3, 1fr); }
.feat-grid.trio .feat-card.tall { min-height: 0; }
.feat-grid.trio .embed-phone { width: 200px; filter: var(--trio-phone-shadow, drop-shadow(0 28px 44px rgba(0,0,0,0.5)) drop-shadow(0 6px 14px rgba(0,0,0,0.35)) drop-shadow(0 0 30px rgba(255,255,255,0.10))); }
.feat-grid.trio .feat-card .visual {
  min-height: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 36px 0 40px;
}
.feat-grid.trio .embed-phone.center {
  position: relative;
  transform: none;
  top: auto;
  left: auto;
}

/* phone-embed placeholder (awaiting screenshot) */
.placeholder {
  width: 100%; height: 100%;
  background:
    repeating-linear-gradient(135deg,
      rgba(232,90,26,0.06) 0 10px,
      rgba(232,90,26,0.12) 10px 20px);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 20px;
}
.placeholder span {
  background: var(--surface);
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.feat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.feat-card.tall { min-height: 560px; }
.feat-card .visual {
  flex: 1;
  background: linear-gradient(180deg, #f5efe2 0%, #ebe4d3 100%);
  position: relative;
  overflow: hidden;
  min-height: 380px;
}
.feat-grid.trio .feat-card .visual { min-height: 450px; background: var(--trio-visual-bg, linear-gradient(180deg, #f5efe2 0%, #ebe4d3 100%)); }
.feat-card .visual.dark { background: #16140f; }
.feat-card .pad {
  padding: 32px 32px 36px;
  border-top: 1px solid var(--line);
}
.feat-grid.trio .feat-card .pad {
  display: flex;
  flex-direction: column;
}
.feat-grid.trio .feat-card .pad .tag { align-self: flex-start; }
.feat-grid.trio .feat-card .pad p:not(.disclaimer) { min-height: 0; }
.feat-card .disclaimer {
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-4);
  margin: 16px 0 0;
  font-style: italic;
}
.feat-grid.trio .feat-card .disclaimer { margin-top: 8px; padding-top: 0; }
.feat-card h3 {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0 0 10px;
  color: var(--ink);
}
.feat-card p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-3);
  margin: 0;
}
.feat-card .tag {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ember-deep);
  background: var(--ember-tint);
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 14px;
}
.feat-card .tag.neutral { background: #f0eee6; color: var(--ink-3); }

.embed-phone {
  width: 230px;
  aspect-ratio: 1350 / 2760;
  position: absolute;
  filter: drop-shadow(0 30px 46px rgba(0,0,0,0.26));
}

/* shared bezel-frame internals */
.embed-phone .screen,
.hero-phone .screen {
  position: absolute;
  top: 2.5%;
  left: 5.33%;
  right: 5.41%;
  bottom: 2.54%;
  overflow: hidden;
  border-radius: 7.5% / 3.6%;
  background: #000;
  z-index: 1;
}
.embed-phone .bezel,
.hero-phone .bezel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 2;
  pointer-events: none;
}
.embed-phone.center { top: 40px; left: 50%; transform: translateX(-50%); }
.embed-phone.tilt-l { top: 60px; left: 8%; transform: rotate(-4deg); }
.embed-phone.tilt-r { top: 60px; right: 8%; transform: rotate(4deg); }

/* SIMULATION (dark, full width) */
.sim {
  background: var(--ink);
  color: var(--bg);
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}
.sim .section-tag { color: var(--ember); }
.sim .section-tag .num { background: rgba(232,90,26,0.18); color: var(--ember); }
.sim h2 { color: var(--bg); }
.sim .feat-sub { color: rgba(250,250,248,0.7); }
.sim .feat-grid { grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
/* App-faithful Fire Progression Simulation mockup */
.sim-visual {
  --sim-purple: #ed6b00;
  position: relative;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  border-radius: 28px;
  background: #cfe6a6;
  border: 6px solid #15130d;
  box-shadow: 0 30px 70px -24px rgba(0,0,0,0.6);
  overflow: hidden;
  font-family: var(--sans);
}
/* terrain map */
.sim-map { position: absolute; inset: 0; }
.sim-map {
  background-color: #cfe6a6;
  background-image:
    radial-gradient(ellipse 40% 24% at 12% 14%, #a8d3ef 0%, #a8d3ef 58%, transparent 60%),
    radial-gradient(ellipse 26% 20% at 92% 86%, #b6dcf2 0%, transparent 58%),
    radial-gradient(ellipse 42% 30% at 74% 16%, #ece8d8 0%, transparent 55%),
    radial-gradient(ellipse 46% 36% at 26% 88%, #bfe098 0%, transparent 60%),
    linear-gradient(135deg, #d4e9ab, #c1dd94);
}
.sim-map::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(112deg, transparent 0 16%, rgba(255,255,255,0.62) 16% 17.4%, transparent 17.4%),
    linear-gradient(66deg, transparent 0 58%, rgba(255,255,255,0.5) 58% 59%, transparent 59%),
    linear-gradient(150deg, transparent 0 78%, rgba(108,140,170,0.4) 78% 78.7%, transparent 78.7%);
}
/* blocky fire footprint */
.sim-fire {
  position: absolute; left: 12%; top: 26%; width: 64%; height: 40%;
  background: #d62b2b;
  clip-path: polygon(
    20% 0%, 34% 4%, 40% 0%, 52% 6%, 62% 2%, 70% 10%, 84% 8%,
    92% 20%, 100% 34%, 96% 48%, 100% 60%, 90% 74%, 78% 78%,
    66% 90%, 54% 86%, 44% 96%, 34% 84%, 22% 88%, 14% 74%,
    4% 66%, 0% 50%, 6% 36%, 2% 22%, 10% 10%
  );
}
.sim-fire::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120,12,12,0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,12,12,0.16) 1px, transparent 1px),
    linear-gradient(90deg, transparent 0 46%, rgba(150,18,18,0.35) 46% 54%, transparent 54%);
  background-size: 8px 8px, 8px 8px, 100% 100%;
}
/* fire pin */
.sim-pin {
  position: absolute; left: 52%; top: 38%;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; justify-content: center;
}
.sim-pin-flame { width: 26px; height: 31px; display: block; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.35)); }
.sim-loc-dot {
  position: absolute; width: 14px; height: 14px; border-radius: 50%;
  background: #2f6fed; border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.35);
  transform: translate(calc(-50% - 24px), calc(-50% + 24px));
}
.sim-loc-pulse {
  position: absolute; inset: -8px; border-radius: 50%;
  background: rgba(47,111,237,0.35);
  animation: sim-loc-pulse 2.2s ease-out infinite;
}
@keyframes sim-loc-pulse {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}
.sim-visual .sim-loc-dot { z-index: 4; pointer-events: none; }
/* top-left back chip */
.sim-back {
  position: absolute; top: 14px; left: 14px;
  width: 34px; height: 34px; border-radius: 50%;
  background: #fff; color: #15130d;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; box-shadow: 0 3px 9px rgba(0,0,0,0.2);
}
/* floating play/scrub card */
.sim-card {
  position: absolute; left: 14px; right: 14px; bottom: 14px;
  background: #fff; border-radius: 18px;
  padding: 13px 15px 14px;
  box-shadow: 0 12px 34px -8px rgba(0,0,0,0.3);
  font-family: var(--sans);
}
.sim-card-head { display: flex; align-items: center; gap: 11px; margin-bottom: 11px; }
.sim-play {
  width: 0; height: 0; flex: none;
  border-left: 16px solid #15130d;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
}
.sim-card-title { font-size: 15px; font-weight: 700; letter-spacing: -0.02em; color: #15130d; line-height: 1.15; }
.sim-time { font-size: 16px; font-weight: 700; color: #15130d; letter-spacing: -0.02em; margin-bottom: 9px; }
.sim-track { position: relative; height: 5px; border-radius: 3px; background: #e2dfd7; }
.sim-fill { position: absolute; left: 0; top: 0; bottom: 0; width: 64%; border-radius: 3px; background: var(--sim-purple); }
.sim-thumb {
  position: absolute; left: 64%; top: 50%; transform: translate(-50%, -50%);
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--sim-purple);
  box-shadow: 0 0 0 3px #fff, 0 2px 6px rgba(0,0,0,0.3);
}
.sim-ticks {
  display: flex; justify-content: space-between;
  margin-top: 7px;
  font-size: 8px; font-weight: 600; color: #a4a199;
}
/* purple simulation-mode banner */
.sim-banner {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: var(--sim-purple); color: #fff;
  display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 12px;
  font-size: 10.5px; font-weight: 600; letter-spacing: -0.01em; white-space: nowrap;
}
.sim-banner-ico {
  flex: none; width: 15px; height: 15px; border-radius: 50%;
  border: 1.5px solid #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 800; line-height: 1;
}
.sim ul.bullets { list-style: none; padding: 0; margin: 32px 0 0; }
.sim ul.bullets li {
  padding: 14px 0;
  border-top: 1px solid #2a2720;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 16px;
  align-items: baseline;
  font-size: 15px;
  color: rgba(250,250,248,0.78);
}
.sim ul.bullets li:last-child { border-bottom: 1px solid #2a2720; }
.sim ul.bullets .k { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ember); }

/* live embedded Leaflet simulation */
.sim-visual .leaflet-container { background: #e9e7e2; outline: none; font-family: var(--sans); }
.sim-leaflet { position: absolute; inset: 0; z-index: 0; }
.sim-overlay { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.sim-visual .sim-pin { z-index: 4; pointer-events: none; }
.sim-visual .sim-back { z-index: 8; cursor: default; }
.sim-visual .sim-card { z-index: 7; }
.sim-visual .sim-banner { z-index: 7; }
.sim-play-btn {
  flex: none; width: 26px; height: 26px; padding: 0; border: 0; border-radius: 50%;
  background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.sim-play-btn svg { width: 19px; height: 19px; fill: #15130d; }
.sim-play-btn:focus { outline: none; }
.sim-visual .leaflet-top { top: 5px; }
.sim-visual .leaflet-right { right: 9px; }
.sim-visual .leaflet-control-attribution {
  font-size: 7.5px; background: transparent; color: rgba(120,120,120,0.45);
  padding: 2px 5px; line-height: 1.4; box-shadow: none;
}
.sim-visual .leaflet-control-attribution a { color: rgba(120,120,120,0.5); text-decoration: none; }

/* MISSION (band) */
.mission {
  padding: 140px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.mission .wrap { max-width: 920px; }
.mission .section-tag { color: var(--ember); margin-bottom: 32px; }
.mission .copy {
  font-size: 30px;
  line-height: 1.35;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.025em;
  text-wrap: pretty;
}
.mission .copy p { margin: 0 0 24px; }
.mission .copy .accent { color: var(--ember); }
.mission .copy strong { font-weight: 500; color: var(--ink); }
.mission .sig {
  margin-top: 48px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex; align-items: center; gap: 12px;
}
.mission .sig::before { content: ""; width: 32px; height: 1px; background: var(--ink-3); }

/* FAQ */
.faq { padding: 140px 0; border-bottom: 1px solid var(--line); }
.faq .wrap { display: grid; grid-template-columns: 360px 1fr; gap: 80px; }
.faq h2 { font-size: 48px; letter-spacing: -0.035em; margin: 0; font-weight: 500; line-height: 1.0; }
.faq h2 .accent { color: var(--ember); }
.faq .lede {
  margin-top: 20px;
  font-size: 15px;
  color: var(--ink-3);
  max-width: 280px;
}
details.q {
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
}
details.q[open] summary { color: var(--ember); }
details.q summary {
  font-size: 19px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.015em;
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px;
}
details.q summary::-webkit-details-marker { display: none; }
details.q summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 22px;
  color: var(--ink-3);
  transition: transform .2s ease;
  flex-shrink: 0;
}
details.q[open] summary::after { content: "−"; color: var(--ember); }
details.q .a {
  padding-top: 14px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 660px;
}

/* CTA */
.cta {
  padding: 140px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 600px 400px at 80% 50%, rgba(232,90,26,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta .wrap { position: relative; text-align: center; }
.cta h2 {
  font-size: 64px;
  line-height: 1.0;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0 auto 24px;
  max-width: 840px;
  text-wrap: balance;
}
.cta h2 .accent { color: var(--ember); }
.cta p {
  font-size: 18px;
  color: var(--ink-3);
  max-width: 560px;
  margin: 0 auto 40px;
}
.cta .cta-row { justify-content: center; }

/* FOOTER */
footer.bottom { padding: 80px 0 48px; background: var(--bg); }
footer.bottom .wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  align-items: start;
}
footer.bottom .brand { margin-bottom: 16px; }
footer.bottom .desc {
  font-size: 14px;
  color: var(--ink-3);
  max-width: 320px;
  line-height: 1.55;
}
footer.bottom .col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 16px;
  font-weight: 500;
}
footer.bottom .col a {
  display: block;
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 10px;
}
footer.bottom .col a:hover { color: var(--ember); }
footer.bottom .legal {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 32px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
footer.bottom .legal .version { color: var(--ink-4); letter-spacing: 0.1em; }

/* ============================================================
   SUB-PAGE HEADER (FAQ / About)
   ============================================================ */
.page-head {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 720px 360px at 88% -10%, rgba(232,90,26,0.07) 0%, transparent 70%),
    var(--bg);
}
.page-head .wrap { max-width: 900px; }
.page-head .eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ember);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.page-head .eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ember);
}
.page-head h1 {
  font-size: 68px;
  line-height: 1.0;
  letter-spacing: -0.04em;
  font-weight: 500;
  margin: 0 0 24px;
  color: var(--ink);
  text-wrap: balance;
}
.page-head h1 .accent { color: var(--ember); }
.page-head .sub {
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 620px;
  margin: 0;
}

/* ============================================================
   FAQ PAGE
   ============================================================ */
.faq-page { padding: 100px 0 40px; }
.faq-page .wrap { display: grid; grid-template-columns: 280px 1fr; gap: 80px; align-items: start; }
.faq-toc { position: sticky; top: 96px; }
.faq-toc h4 {
  font-family: var(--mono);
  font-size: 14px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-3); margin: 0 0 18px; font-weight: 500;
}
.faq-toc a {
  display: block; font-size: 18px; color: var(--ink-2);
  padding: 8px 0; border-bottom: 1px solid var(--line);
  transition: color .15s ease;
}
.faq-toc a:hover { color: var(--ember); }
.faq-group { margin-bottom: 72px; scroll-margin-top: 88px; }
.faq-group:last-child { margin-bottom: 0; }
.faq-group .group-label {
  font-family: var(--mono);
  font-size: 15px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ember); margin: 0 0 8px;
  display: flex; align-items: center; gap: 12px;
}
.faq-group .group-label .ix {
  background: var(--ember-tint); color: var(--ember-deep);
  padding: 3px 8px; border-radius: 4px;
}
.faq-group h2 {
  font-size: 34px; letter-spacing: -0.03em; font-weight: 500;
  margin: 0 0 28px; line-height: 1.05; color: var(--ink);
}

/* contact strip */
.contact-strip {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 80px 0;
}
.contact-strip .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  flex-wrap: wrap;
}
.contact-strip h3 {
  font-size: 34px; letter-spacing: -0.03em; font-weight: 500; margin: 0 0 8px; color: var(--ink);
}
.contact-strip p { font-size: 16px; color: var(--ink-3); margin: 0; max-width: 460px; }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-lead {
  padding: 110px 0;
  border-bottom: 1px solid var(--line);
}
.about-lead .wrap { max-width: 920px; }
.about-lead .copy {
  font-size: 32px;
  line-height: 1.35;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.025em;
  text-wrap: pretty;
}
.about-lead .copy p { margin: 0 0 28px; }
.about-lead .copy p:last-child { margin-bottom: 0; }
.about-lead .copy .accent { color: var(--ember); }
.about-lead .copy strong { font-weight: 500; color: var(--ink); }

/* values grid */
.values { padding: 130px 0; border-bottom: 1px solid var(--line); }
.values-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 64px;
}
.value {
  background: var(--surface);
  padding: 40px 36px 44px;
}
.value .vix {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  color: var(--ember); margin-bottom: 24px;
}
.value h3 {
  font-size: 23px; font-weight: 500; letter-spacing: -0.02em;
  margin: 0 0 12px; color: var(--ink);
}
.value p { font-size: 15px; line-height: 1.6; color: var(--ink-3); margin: 0; }

/* ladris split */
.ladris-split { padding: 130px 0; border-bottom: 1px solid var(--line); background: var(--surface); }
.ladris-split .wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.ladris-split .body p {
  font-size: 17px; line-height: 1.65; color: var(--ink-2); margin: 0 0 20px; max-width: 520px;
}
.ladris-split .body p:last-child { margin-bottom: 0; }
.ladris-split .panel {
  background: var(--ink);
  color: var(--bg);
  border-radius: 16px;
  padding: 48px 44px;
  position: relative;
  overflow: hidden;
}
.ladris-split .panel::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 420px 300px at 100% 0%, rgba(232,90,26,0.22) 0%, transparent 65%);
}
.ladris-split .panel .lbl {
  position: relative;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 28px;
}
.ladris-split .panel .row {
  position: relative;
  display: grid; grid-template-columns: 130px 1fr; gap: 18px;
  padding: 18px 0; border-top: 1px solid #2a2720;
  font-size: 15px; color: rgba(250,250,248,0.8); align-items: baseline;
}
.ladris-split .panel .row:last-child { border-bottom: 1px solid #2a2720; }
.ladris-split .panel .row .k {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.06em; color: rgba(250,250,248,0.5);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .wrap { padding: 0 32px; }
  h1.headline { font-size: 60px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 560px; max-width: 100%; }
  .hero-phone { width: 220px; }
  .hero-phone.back { transform: translateX(-76px) translateY(-20px); }
  .hero-phone.front { transform: translateX(76px) translateY(20px); }
  .feat-grid { grid-template-columns: 1fr; }
  .feat-grid.trio { grid-template-columns: 1fr; }
  .sim .feat-grid { grid-template-columns: 1fr; gap: 40px; }
  .faq .wrap { grid-template-columns: 1fr; gap: 40px; }
  .faq-page .wrap { grid-template-columns: 1fr; gap: 48px; }
  .faq-toc { position: static; }
  .ladris-split .wrap { grid-template-columns: 1fr; gap: 48px; }
  .values-grid { grid-template-columns: 1fr; }
  footer.bottom .wrap { grid-template-columns: 1fr; gap: 40px; }
  .page-head h1, .cta h2 { font-size: 52px; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 22px; }
  /* Portrait phone: keep the logo mark, drop the "Sentinel" wordmark, show Home/FAQ tabs */
  .brand { display: flex; }
  nav.top .brand span { display: none; }
  .nav-links { display: flex; margin-left: 8px; margin-right: auto; }
  .ladris-tag { display: none; }
  nav.top .wrap { height: 58px; }

  /* hero */
  .hero { padding: 44px 0 0; }
  .hero .wrap { gap: 28px; }
  h1.headline { font-size: 40px; }
  .hero-visual { height: 440px; }
  .hero-phone { width: 190px; }
  .hero-phone.back { transform: translateX(-56px) translateY(-22px); }
  .hero-phone.front { transform: translateX(56px) translateY(22px); }
  .cta-row { gap: 10px; }
  .btn-badge img { height: 46px; }

  .page-head h1 { font-size: 40px; }
  .feat-title, .cta h2 { font-size: 38px !important; }
  .section-head { margin-bottom: 40px; }
  .stats .wrap { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(odd) { border-left: 1px solid var(--line); }
  .press .logos { flex-direction: column; gap: 28px; }
  section.feat, .sim, .mission, .faq, .about-lead, .values, .ladris-split { padding: 80px 0; }

  /* feature cards stack — let them size to content */
  .feat-grid { gap: 20px; }
  .feat-card.tall { min-height: 0; }
  .feat-grid.trio .feat-card .visual { min-height: 0; padding: 30px 0; }
  .feat-grid.trio .feat-card .pad { min-height: 0; }
  .feat-grid.trio .feat-card .pad p { min-height: 0; }
  .feat-card .pad { padding: 26px 24px 30px; }

  .about-lead .copy, .mission .copy { font-size: 24px; }
  .sim-visual { max-width: 320px; }
  footer.bottom .wrap { grid-template-columns: 1fr; }
  footer.bottom .legal { flex-direction: column; gap: 12px; align-items: flex-start; }
  .contact-strip .wrap { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 460px) {
  .hero-visual { height: 384px; }
  .hero-phone { width: 168px; }
  .hero-phone.back { transform: translateX(-48px) translateY(-18px); }
  .hero-phone.front { transform: translateX(48px) translateY(18px); }
  h1.headline { font-size: 34px; }
  .feat-title, .cta h2 { font-size: 31px !important; }
  .nav-right .btn-primary { padding: 8px 13px; font-size: 13px; }
  .btn-badge img { height: 44px; }
}