/* ============================================================
   HopBuilds homepage — light editorial, JHU blues, blueprint grid
   Self-contained: index.html links only this file + lenis.css.
   ============================================================ */

:root {
  --paper: #f7f9fc;
  --ink: #002d72; /* JHU Heritage Blue */
  --spirit: #68ace5; /* JHU Spirit Blue */
  --slate: #42536b;
  --line: #d7e0ec;
  --live: #ffb700; /* used once: the "Live" badge */
  --grid-line: rgba(0, 45, 114, 0.055);

  --font-display: "Clash Display", "Avenir Next", sans-serif;
  --font-body: "Satoshi", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;

  --gutter: clamp(1.25rem, 5vw, 5rem);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

::selection {
  background: var(--spirit);
  color: var(--ink);
}

/* ---------- blueprint grid backdrop (the signature) ---------- */
.chapter-grid {
  position: relative;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
}

/* ---------- shared primitives ---------- */
.eyebrow,
.chapter-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.chapter-label {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--ink);
  margin-bottom: clamp(2rem, 5vh, 3.5rem);
}

.chapter-label span {
  font-weight: 700;
  color: var(--ink);
}

.chapter-label-light,
.chapter-label-light span {
  color: #fff;
  border-color: #fff;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid var(--spirit);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: #013a8f;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: rgba(104, 172, 229, 0.16);
}

.btn-large {
  font-size: 1.15rem;
  padding: 1.1rem 2.5rem;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--slate);
  background: #fff;
  margin-bottom: 1rem;
}

.badge-live {
  border-color: var(--live);
  background: var(--live);
  color: var(--ink);
  font-weight: 700;
}

/* ---------- progress bar ---------- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: var(--spirit);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 200;
}

/* ---------- nav ---------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--gutter);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.site-nav.is-scrolled {
  background: rgba(247, 249, 252, 0.88);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}

.nav-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--spirit);
}

.nav-cta {
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  transition: background 0.18s ease;
}

.nav-cta:hover {
  background: #013a8f;
}

@media (max-width: 767px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(5.5rem, 11vh, 7.5rem) var(--gutter) 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.hero-eyebrow {
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3rem, 7.5vw, 6.75rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-title-line {
  display: block;
}

.hero-title em {
  font-style: italic;
  font-weight: 500;
  color: var(--spirit);
}

.hero-period {
  color: var(--spirit);
}

.hero-tagline {
  max-width: 34rem;
  margin-top: 1.75rem;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--slate);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

/* ---------- interactive terminal ---------- */
.hero-terminal {
  background: #001d4a;
  border: 1px solid rgba(104, 172, 229, 0.35);
  border-radius: 14px;
  box-shadow: 0 32px 80px rgba(0, 29, 74, 0.35);
  transform: rotate(-1.5deg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  overflow: hidden;
  cursor: text;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(104, 172, 229, 0.22);
}

.term-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  border: 1px solid rgba(104, 172, 229, 0.55);
}

.term-dot:first-child {
  background: var(--spirit);
  border-color: var(--spirit);
}

.term-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(104, 172, 229, 0.7);
}

.term-body {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 19rem;
  padding: 1rem 1.1rem;
  color: #cfe4f7;
}

.term-line {
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.term-out {
  color: rgba(207, 228, 247, 0.75);
}

.term-prompt {
  color: var(--spirit);
  font-weight: 700;
  white-space: nowrap;
}

.term-input-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.2rem;
}

.term-input-row input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font: inherit;
  caret-color: var(--spirit);
}

@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-terminal {
    display: none;
  }
}

.hero-foot {
  padding-bottom: 2rem;
}

.hero-scroll-hint {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

/* logo marquee */
.outcomes {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.outcomes-topline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.outcomes-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.outcomes-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.outcomes-track {
  display: flex;
  align-items: center;
  gap: 4rem;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.outcomes-track img {
  height: 1.6rem;
  width: auto;
  max-width: 8.5rem;
  object-fit: contain;
  filter: grayscale(1) opacity(0.55);
  transition: filter 0.2s ease;
}

.outcomes-track img:hover {
  filter: none;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .outcomes-track {
    animation: none;
    flex-wrap: wrap;
    width: auto;
  }
}

/* ============================================================
   01 · OUR STORY  (pinned chapter on desktop)
   ============================================================ */
.story {
  padding: clamp(5rem, 12vh, 8rem) var(--gutter);
}

.story-pin {
  min-height: 60vh;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.story-line {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.75rem, 4.5vw, 3.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 20ch;
  margin-bottom: 1.25rem;
}

.story-line em {
  font-style: italic;
  color: var(--spirit);
}

.story-line-final strong {
  font-weight: 700;
  border-bottom: 4px solid var(--spirit);
}

.story-detail {
  max-width: 26rem;
  border-left: 2px solid var(--spirit);
  padding-left: clamp(1.25rem, 2vw, 1.75rem);
  color: var(--slate);
  font-size: 1.1rem;
}

@media (max-width: 767px) {
  .story-pin {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 2rem;
  }
}

/* ============================================================
   02 · WHAT WE BUILD  (pinned horizontal gallery)
   ============================================================ */
.builds {
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  justify-content: space-between;
}

.builds-head {
  padding: clamp(3.5rem, 9vh, 5.5rem) var(--gutter) clamp(1.25rem, 3vh, 2rem);
  --grid-line: rgba(255, 255, 255, 0.05);
}

.builds-head .chapter-label,
.builds-head .chapter-label span {
  color: var(--spirit);
  border-color: var(--spirit);
}

.builds-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.builds-title {
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
}

.builds-stats {
  display: flex;
  gap: 2.5rem;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  color: var(--spirit);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

/* the track slides horizontally while the section is pinned */
.builds-track {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2rem);
  padding: 0 var(--gutter);
  width: max-content;
  will-change: transform;
}

.build-card {
  position: relative;
  overflow: hidden;
  width: min(74vw, 1040px);
  min-height: 54vh;
  background: #fff;
  color: var(--ink);
  border-radius: 24px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.25rem, 3vw, 3rem);
  padding: clamp(1.5rem, 3vw, 3rem);
}

/* oversized index numeral, blueprint-style watermark */
.build-num {
  position: absolute;
  top: -1.5rem;
  right: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(7rem, 16vw, 13rem);
  line-height: 1;
  color: rgba(0, 45, 114, 0.06);
  user-select: none;
  pointer-events: none;
}

.build-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.build-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.build-desc {
  color: var(--slate);
  font-size: 1.15rem;
  max-width: 28rem;
  margin-bottom: 1.75rem;
}

.build-art {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.build-art img {
  width: 100%;
  max-height: 42vh;
  object-fit: contain;
}

.builds-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: clamp(1.25rem, 3vh, 2rem) var(--gutter) clamp(2rem, 5vh, 3rem);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--spirit);
}

.builds-total {
  color: rgba(255, 255, 255, 0.45);
}

.builds-progress-line {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.15);
}

.builds-progress-fill {
  display: block;
  height: 100%;
  background: var(--spirit);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

@media (max-width: 767px) {
  .builds {
    min-height: 0;
    display: block;
  }

  /* native horizontal swipe instead of the pinned gallery */
  .builds-track-wrap {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .builds-track {
    padding-bottom: 0.5rem;
  }

  .build-card {
    width: 86vw;
    min-height: 0;
    grid-template-columns: 1fr;
    scroll-snap-align: center;
  }

  .build-art img {
    max-height: 32vh;
  }
}

/* ============================================================
   03 · WHAT YOU GAIN  (scroll-fill headlines + pop-out cards)
   ============================================================ */
.gains {
  padding: clamp(5rem, 12vh, 8rem) var(--gutter);
}

.gain-list {
  list-style: none;
  margin-top: clamp(3rem, 8vh, 5rem);
  border-bottom: 1px solid var(--line);
}

.gain-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  min-height: 46vh;
  padding: clamp(2rem, 5vh, 3.5rem) 0;
  border-top: 1px solid var(--line);
}

/* headline: stroke-only layer underneath, ink layer clipped on top.
   JS scrubs the fill layer's clip-path as the row crosses the viewport. */
.gain-line {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.5rem, 6.5vw, 5.5rem);
  letter-spacing: -0.02em;
  line-height: 1.02;
}

.gain-line-stroke {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0, 45, 114, 0.32);
}

.gain-line-fill {
  position: absolute;
  inset: 0;
  display: block;
  color: var(--ink);
}

/* blueprint annotation callout — bare text with a leader line, no card */
.gain-note {
  position: relative;
  max-width: 26rem;
}

/* thin leader line reaching back toward the headline, node dot at its far end */
.gain-leader {
  position: absolute;
  top: 0.5em;
  right: calc(100% + 0.9rem);
  width: clamp(1.5rem, 3.5vw, 3.5rem);
  height: 1.5px;
  background: var(--ink);
}

.gain-leader::before {
  content: "";
  position: absolute;
  left: -0.3rem;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  transform: translateY(-50%);
  background: var(--spirit);
}

.gain-note-copy {
  color: var(--slate);
}

/* marker-highlight instead of a featured card */
.gain-note strong {
  font-weight: 700;
  color: var(--ink);
  background: linear-gradient(transparent 62%, rgba(104, 172, 229, 0.45) 62%);
}

.gain-note-featured .gain-note-copy {
  color: var(--ink);
  font-size: 1.1rem;
}

.gain-kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.9rem;
}

@media (max-width: 767px) {
  .gain-row {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 1.5rem;
  }

  .gain-leader {
    display: none;
  }
}

/* ============================================================
   04 · THE SOCIAL SIDE
   ============================================================ */
.social {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.social-media {
  position: absolute;
  inset: 0;
}

.social-media img {
  width: 100%;
  height: 115%;
  object-fit: cover;
  will-change: transform;
}

.social-overlay {
  position: relative;
  z-index: 1;
  width: 100%;
  /* tall padding-top stretches the scrim so it fades in well above the text */
  padding: 45vh var(--gutter) clamp(3rem, 8vh, 6rem);
  /* the shorthand also replaces .chapter-grid's blueprint grid image */
  background: linear-gradient(180deg, transparent 0%, rgba(0, 16, 42, 0.35) 35%, rgba(0, 16, 42, 0.7) 60%, rgba(0, 16, 42, 0.96) 100%);
  color: #fff;
}

.social-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin-bottom: 1rem;
  text-shadow: 0 2px 30px rgba(0, 10, 30, 0.65);
}

.social-copy {
  max-width: 36rem;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: #fff;
  font-weight: 500;
  text-shadow: 0 1px 18px rgba(0, 10, 30, 0.75);
}

/* ============================================================
   05 · JOIN
   ============================================================ */
.join {
  padding: clamp(5rem, 12vh, 8rem) var(--gutter) clamp(4rem, 10vh, 7rem);
}

.join-head {
  max-width: 46rem;
}

.join-title {
  font-size: clamp(3rem, 8vw, 6rem);
}

.join-sub {
  color: var(--slate);
  font-size: 1.15rem;
  margin: 1.5rem 0 2.25rem;
}

.join-roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: clamp(3rem, 7vh, 5rem);
}

.role-card {
  border-top: 2px solid var(--ink);
  padding-top: 1.25rem;
}

.role-card h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.role-card p {
  color: var(--slate);
}

@media (max-width: 767px) {
  .join-roles {
    grid-template-columns: 1fr;
  }
}

/* ---------- footer ---------- */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem var(--gutter) 2rem;
  border-top: 1px solid var(--line);
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  font-weight: 500;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--spirit);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--slate);
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .build-card {
    position: static;
  }
}