/* ============================================================
   01Academy · Hero & Prism Artifact
   Vivid+Co Design System — Prismatic Light Through Obsidian
   ============================================================ */

#webgl-canvas,
#prism-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: clamp(60px, 8vw, 120px);
  padding-bottom: clamp(60px, 8vw, 100px);
  position: relative;
  overflow: visible;
  background-color: transparent;
}

.hero > * {
  position: relative;
  z-index: 2;
}

/* --- Hero Top Layout --- */
.hero__top {
  position: relative;
  width: 100%;
}

/* --- Sculptural Display Headline (Vivid+Co Neue Montreal 105-136px) --- */
.hero__title-block {
  position: relative;
  z-index: 3;
  text-align: left;
  margin-top: clamp(20px, 3vw, 48px);
  margin-bottom: clamp(40px, 5vw, 80px);
}

.hero__title {
  font-family: var(--font-neue-montreal);
  font-weight: var(--font-weight-regular);
  font-size: clamp(44px, 7.2vw, 120px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--color-bone-white);
  max-width: 14ch;
  margin: 0;
  text-wrap: balance;
}

.hero__title .kinetic-wrap {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
}

.hero__title em {
  font-style: normal;
  color: var(--color-bone-white);
}

/* --- Subtitle & Lead Paragraph ---
   Role: Hero Lead Paragraph
   Aligned right/bottom under the 3D sculpture
   ------------------------------------------------------------ */
.hero__bottom-row {
  display: grid;
  grid-template-columns: 1fr minmax(0, 480px);
  gap: clamp(28px, 4vw, 64px);
  align-items: end;
  margin-top: auto;
}

@media (max-width: 880px) {
  .hero__bottom-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-32);
  }
}

.hero__lead-col {
  grid-column: 2;
}

.hero__lead {
  font-family: var(--font-neue-montreal);
  font-weight: var(--font-weight-regular);
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.45;
  color: var(--color-bone-white);
  max-width: 460px;
  margin: 0 0 var(--spacing-24) 0;
  text-align: left;
}

.hero__ctas {
  display: flex;
  gap: var(--spacing-16);
  justify-content: flex-start;
  flex-wrap: wrap;
}

/* --- Trust Pills --- */
.trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* --- Executive Letter (Graphite Veil Slate Document) --- */
.letter {
  max-width: 880px;
  margin-inline: auto;
  background: var(--surface-card-dark);
  border-radius: var(--radius-cards);
  padding: clamp(32px, 5vw, 64px) clamp(24px, 4.5vw, 56px);
  position: relative;
  border: 1px solid var(--color-ash-border);
  box-shadow: none;
}

.letter__body {
  padding-bottom: 4px;
}

.letter__to {
  font-family: var(--font-neue-montreal);
  font-size: var(--text-caption);
  font-weight: var(--font-weight-regular);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-fog-blue);
  margin-bottom: var(--spacing-40);
  display: flex;
  align-items: center;
  gap: 12px;
}

.letter__to::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--color-ash-border);
}

.letter p {
  font-family: var(--font-neue-montreal);
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  margin-bottom: var(--spacing-20);
  color: var(--color-bone-white);
}

.letter p:last-of-type {
  margin-bottom: 0;
}

.letter p.is-lead {
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-20);
  color: var(--color-bone-white);
}

.letter mark {
  background: transparent;
  color: var(--color-bone-white);
  border-bottom: 1px solid var(--color-fog-blue);
  padding: 0 1px;
}

.letter__sign {
  display: flex;
  align-items: center;
  gap: var(--spacing-20);
  margin-top: var(--spacing-40);
  padding-top: var(--spacing-20);
  border-top: 1px solid var(--color-ash-border);
}

.letter__sign svg {
  height: 40px;
  width: auto;
  flex-shrink: 0;
  stroke: var(--color-bone-white);
}

.letter__who {
  font-size: 14px;
  color: var(--color-fog-blue);
  line-height: 1.4;
}

.letter__who b {
  display: block;
  font-family: var(--font-neue-montreal);
  font-size: 16px;
  font-weight: var(--font-weight-regular);
  color: var(--color-bone-white);
  margin-bottom: 2px;
}

/* --- Scroll cue --- */
.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: clamp(40px, 5vw, 64px);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: var(--font-weight-regular);
  color: var(--color-fog-blue);
  text-decoration: none;
  transition: color var(--dur) var(--ease-vivid);
}

.scroll-cue:hover {
  color: var(--color-bone-white);
}

.scroll-cue svg {
  width: 15px;
  height: 15px;
  color: var(--color-bone-white);
  animation: cue-bob 2.4s var(--ease-vivid) infinite;
}

@keyframes cue-bob {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50%      { transform: translateY(6px); opacity: 1; }
}