/* ============================================================
   Avermont Intelligence — one-pager
   Dark · institutional + crypto-modern · blue accent
   Restraint-first.
   ============================================================ */

:root {
  --bg-0: #05070d;
  --bg-1: #0a0e18;
  --bg-2: #0f1626;
  --surface: #0e1422;
  --border: rgba(125, 211, 252, 0.08);
  --border-strong: rgba(125, 211, 252, 0.18);

  --text: #e8eef9;
  --text-mute: #94a3b8;
  --text-dim: #6b7a93;

  --accent: #4d9bff;
  --accent-2: #7dd3fc;
  --positive: #5eead4;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 22px;

  --section-pad-y: clamp(4.5rem, 9vw, 9rem);
  --max-w: 1200px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(77, 155, 255, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(125, 211, 252, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg-0) 0%, #04060c 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(125, 211, 252, 0.06) 1px, transparent 1.2px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--bg-0);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ============================================================
   Typography
   ============================================================ */

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 1.25rem;
}
.section-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2));
}

.section-head {
  max-width: 720px;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #f5f8ff;
  margin: 0 0 1rem;
}
.section-title em {
  font-style: italic;
  background: linear-gradient(120deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 400;
}

.section-sub {
  color: var(--text-mute);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0.25rem auto 0;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.78rem 1.25rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: linear-gradient(120deg, var(--accent) 0%, #6db4ff 50%, var(--accent-2) 100%);
  color: #061224;
  box-shadow: 0 8px 24px rgba(77, 155, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn--primary:hover {
  box-shadow: 0 12px 30px rgba(77, 155, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}
.btn--ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  border-color: var(--accent-2);
  background: rgba(125, 211, 252, 0.05);
}
.btn--lg { padding: 1rem 1.6rem; font-size: 1rem; }

/* ============================================================
   Nav
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(5, 7, 13, 0.9), rgba(5, 7, 13, 0.5));
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 0.95rem 1.5rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand__mark {
  width: 28px;
  height: 28px;
  filter: drop-shadow(0 0 14px rgba(77, 155, 255, 0.5));
}
.brand__word { display: inline-flex; flex-direction: column; line-height: 1; }
.brand__name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand__sub {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-top: 0.18rem;
}

.nav__links {
  display: inline-flex;
  justify-content: center;
  gap: 2rem;
}
.nav__links a {
  font-size: 0.92rem;
  color: var(--text-mute);
  transition: color 0.18s ease;
  position: relative;
}
.nav__links a:hover { color: var(--text); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 1px;
  background: var(--accent-2);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav__links a:hover::after { transform: scaleX(1); }

.nav__right { display: inline-flex; align-items: center; justify-self: end; }

.nav__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: transparent;
}
.nav__progress > span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent), #a855f7);
  transition: width 0.05s linear;
  box-shadow: 0 0 14px rgba(77, 155, 255, 0.55);
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  position: relative;
  padding: clamp(7rem, 12vw, 11rem) 1.5rem clamp(5rem, 10vw, 8rem);
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.8;
}

.hero__vignette {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 60% at 50% 70%, transparent, var(--bg-0) 92%),
    linear-gradient(180deg, transparent 60%, var(--bg-0) 100%);
  pointer-events: none;
}

.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.05);
  border: 1px solid var(--border-strong);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 1.75rem;
}
.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--positive);
  box-shadow: 0 0 0 4px rgba(94, 234, 212, 0.18), 0 0 12px var(--positive);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.85); opacity: 0.7; }
}

.hero__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
  max-width: 20ch;
  color: #f6f9ff;
}
.hero__title em {
  font-style: italic;
  font-weight: 400;
  background: linear-gradient(120deg, var(--accent-2) 0%, var(--accent) 60%, #a8c8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  max-width: 58ch;
  color: var(--text-mute);
  font-size: clamp(1rem, 1.45vw, 1.15rem);
  margin: 0 0 2.4rem;
}

.hero__cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

/* ============================================================
   Approach
   ============================================================ */

.approach {
  padding: var(--section-pad-y) 1.5rem;
  border-top: 1px solid var(--border);
}
.approach__inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 0.5rem;
}

.pillar {
  position: relative;
  padding: 1.8rem 1.6rem;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.005));
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  overflow: hidden;
  isolation: isolate;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.pillar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 100% at 0% 0%, rgba(77, 155, 255, 0.10), transparent 60%);
  z-index: -1;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}
.pillar:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.pillar:hover::before { opacity: 1; }

.pillar__num {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--accent-2);
}
.pillar h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.5rem;
  margin: 0;
  color: #f5f8ff;
  letter-spacing: -0.01em;
}
.pillar p {
  color: var(--text-mute);
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
}

/* ============================================================
   Method (loop row)
   ============================================================ */

.method {
  padding: var(--section-pad-y) 1.5rem;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(15, 22, 38, 0.35), transparent 70%);
}
.method__inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.loop-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: loop;
}

.loop-row li {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.6rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
}

.loop-row li::after {
  content: "→";
  position: absolute;
  right: -0.95rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  color: var(--accent-2);
  opacity: 0.45;
  font-size: 0.9rem;
}
.loop-row li:last-child::after { display: none; }

.loop-row__num {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--accent-2);
}

.loop-row strong {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.25rem;
  color: #f5f8ff;
  letter-spacing: -0.01em;
}

.loop-row span:not(.loop-row__num) {
  color: var(--text-mute);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* ============================================================
   Contact
   ============================================================ */

.contact {
  padding: var(--section-pad-y) 1.5rem;
  border-top: 1px solid var(--border);
}
.contact__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem 2.4rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 80% at 0% 100%, rgba(77, 155, 255, 0.16), transparent 60%),
    linear-gradient(180deg, rgba(125, 211, 252, 0.05), rgba(125, 211, 252, 0.01));
  border: 1px solid var(--border-strong);
}
.contact__copy p {
  color: var(--text-mute);
  margin: 1rem 0 0;
  max-width: 50ch;
}
.contact__actions {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: flex-start;
}

/* ============================================================
   Disclaimer
   ============================================================ */

.disclaimer {
  padding: 3rem 1.5rem 4rem;
}
.disclaimer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.4rem 1.6rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border);
}
.disclaimer h2 {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 0 0 0.6rem;
}
.disclaimer p {
  color: var(--text-mute);
  margin: 0;
  font-size: 0.9rem;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem 2.5rem;
  background: linear-gradient(180deg, transparent, rgba(2, 4, 10, 0.8));
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.footer__legal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 1.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================================
   Reveal animations
   ============================================================ */

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__inner { grid-template-columns: auto 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .loop-row { grid-template-columns: 1fr 1fr; }
  .loop-row li::after { display: none; }
  .contact__inner { grid-template-columns: 1fr; padding: 2rem 1.6rem; }
}

@media (max-width: 560px) {
  .hero { min-height: 85vh; padding-top: 6.5rem; }
  .loop-row { grid-template-columns: 1fr; }
  .nav__cta { display: none; }
  .footer__legal { font-size: 0.68rem; }
}