/* ═══════════════════════════════════════════════════════════
   JEENGA — Pilot Phase
   Industrial / measured / engineered
═══════════════════════════════════════════════════════════ */

/* ── Tokens ────────────────────────────────────────────── */
:root {
  --bg-1:        #0A0A0B;
  --bg-2:        #111114;
  --bg-3:        #16171A;
  --bg-elevated: #1A1C20;

  --border:       #1E2025;
  --border-light: #2A2D33;

  --green:        #28AD47;
  --green-hover:  #2FC551;
  --green-dim:    rgba(40, 173, 71, 0.10);

  --text:    #F2F4F7;
  --text-2:  #9098A4;
  --text-3:  #5A6271;

  --font:    'Inter', system-ui, -apple-system, sans-serif;

  --container: 1180px;
  --nav-h:     72px;
  --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-1);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button {
  border: none; background: none; cursor: pointer;
  font: inherit; color: inherit;
}
ul, ol { list-style: none; }

/* ── Container ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Section base ──────────────────────────────────────── */
.section { padding: 9rem 0; }
.section--dark { background: var(--bg-2); }
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.75rem;
}
.section-title {
  font-size: clamp(2rem, 4.2vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 2rem;
}

/* ── Nav ───────────────────────────────────────────────── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav__inner {
  height: var(--nav-h);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.nav__logo-icon { flex-shrink: 0; }
.nav__logo-text {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text);
}
.nav__links {
  display: flex;
  gap: 2.75rem;
}
.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.01em;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--text); }
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}
.nav__mobile {
  display: none;
}
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__mobile {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem 2rem;
    gap: 1.25rem;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }
  .nav__mobile.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__mobile a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-2);
  }
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 3px;
  border: 1px solid transparent;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
}
.btn--primary {
  background: var(--green);
  color: var(--bg-1);
  font-weight: 600;
}
.btn--primary:hover {
  background: var(--green-hover);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-light);
}
.btn--ghost:hover {
  border-color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
}

/* ── Hero ──────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 4rem) 2rem 6rem;
  overflow: hidden;
  isolation: isolate;
  background: var(--bg-1);
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 30% 38%, rgba(40, 173, 71, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 70% 70%, rgba(40, 173, 71, 0.03) 0%, transparent 55%),
    var(--bg-1);
}
.hero__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.85;
}
.hero__inner {
  max-width: 880px;
  text-align: center;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.42rem 0.9rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid rgba(40, 173, 71, 0.32);
  border-radius: 999px;
  margin-bottom: 2.5rem;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(40, 173, 71, 0.5);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(40, 173, 71, 0.5); }
  70%  { box-shadow: 0 0 0 8px rgba(40, 173, 71, 0); }
  100% { box-shadow: 0 0 0 0 rgba(40, 173, 71, 0); }
}
.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.75rem;
  color: var(--text);
}
.hero__sub {
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  color: var(--text-2);
  line-height: 1.55;
  max-width: 680px;
  margin: 0 auto 1.25rem;
}
.hero__detail {
  font-size: 0.9375rem;
  color: var(--text-3);
  line-height: 1.65;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}
.hero__ctas {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}
.hero__footnote {
  font-size: 0.8125rem;
  color: var(--text-3);
  letter-spacing: 0.02em;
}
.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  opacity: 0.7;
}
.hero__scroll-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 42px;
  background:
    linear-gradient(180deg, transparent 0%, var(--text-3) 50%, transparent 100%);
  background-size: 100% 200%;
  animation: scroll-line 2.6s ease-in-out infinite;
}
@keyframes scroll-line {
  0%   { background-position: 0 -100%; }
  100% { background-position: 0 200%; }
}

/* ── About ─────────────────────────────────────────────── */
.about__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about__text p {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  max-width: 560px;
}
.about__text p:last-child { margin-bottom: 0; }
.about__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.about__svg { width: 100%; height: 100%; display: block; }
@media (max-width: 900px) {
  .about__inner { grid-template-columns: 1fr; gap: 3rem; }
  .about__visual { max-width: 480px; margin: 0 auto; }
}

/* ── Pilot ─────────────────────────────────────────────── */
.pilot__head { text-align: center; margin-bottom: 4rem; }
.pilot__title { margin-bottom: 0.75rem; }
.pilot__sub {
  color: var(--text-2);
  font-size: 1.0625rem;
  letter-spacing: 0.04em;
}
.pilot__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 6rem;
}
.pilot-card {
  padding: 2.5rem 2rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition);
}
.pilot-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}
.pilot-card__index {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--green);
  margin-bottom: 1.5rem;
}
.pilot-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.3;
  color: var(--text);
}
.pilot-card p {
  color: var(--text-2);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* Pilot timeline */
.pilot__timeline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  position: relative;
  padding: 3rem 0 2.5rem;
  margin-bottom: 1.5rem;
}
.pilot__timeline::before {
  content: '';
  position: absolute;
  top: calc(3rem + 7px);
  left: 7px;
  right: 7px;
  height: 1px;
  background: var(--border);
}
.timeline-step {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.125rem;
  text-align: center;
}
.timeline-step__dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1px solid var(--border-light);
  z-index: 1;
  transition: background var(--transition), border-color var(--transition);
}
.timeline-step--done .timeline-step__dot {
  background: var(--green);
  border-color: var(--green);
  opacity: 0.55;
}
.timeline-step--current .timeline-step__dot {
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 0 0 5px rgba(40, 173, 71, 0.16);
  animation: pulse 2.4s ease-out infinite;
}
.timeline-step__label {
  font-size: 0.8125rem;
  color: var(--text-2);
  font-weight: 500;
  max-width: 140px;
  line-height: 1.45;
}
.timeline-step--current .timeline-step__label {
  color: var(--text);
  font-weight: 600;
}
.pilot__footnote {
  text-align: center;
  color: var(--text-3);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
@media (max-width: 760px) {
  .pilot__cards { grid-template-columns: 1fr; }
  .pilot__timeline {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem 0 1rem;
  }
  .pilot__timeline::before {
    top: 0;
    bottom: 0;
    left: 6px;
    right: auto;
    width: 1px;
    height: auto;
  }
  .timeline-step {
    flex-direction: row;
    align-items: center;
    text-align: left;
    width: 100%;
    gap: 1.25rem;
  }
  .timeline-step__label { max-width: none; }
}

/* ── Vision ────────────────────────────────────────────── */
.vision__inner {
  max-width: 820px;
  margin: 0 auto;
}
.vision__body p {
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.vision__body p:last-child { margin-bottom: 3rem; }
.vision__keywords {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
}
.vision__keywords span {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border-light);
  color: var(--text-2);
  border-radius: 3px;
}

/* ── Coming Soon ───────────────────────────────────────── */
.coming-soon__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.coming-soon__inner p {
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.coming-soon__inner p:last-of-type { margin-bottom: 0; }
.coming-soon__callout {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--green) !important;
  letter-spacing: 0.01em;
  margin: 1.5rem 0 !important;
}
.coming-soon__actions {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  margin-top: 2.75rem;
  flex-wrap: wrap;
}

/* ── Contact ───────────────────────────────────────────── */
.contact__inner {
  max-width: 720px;
  margin: 0 auto;
}
.contact__items {
  display: grid;
  gap: 0;
  margin-bottom: 2.5rem;
}
.contact-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--border);
  transition: opacity var(--transition), padding var(--transition);
}
.contact-item:last-child { border-bottom: 1px solid var(--border); }
.contact-item:hover { opacity: 0.7; }
.contact-item__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}
.contact-item__value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}
.contact__note {
  color: var(--text-3);
  font-size: 0.85rem;
}

/* ── Footer ────────────────────────────────────────────── */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-1);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--text-3);
}
.footer__phase {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ── Fade-in (subtle) ──────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.9s ease-out, transform 0.9s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in--delay-1 { transition-delay: 0.08s; }
.fade-in--delay-2 { transition-delay: 0.16s; }
.fade-in--delay-3 { transition-delay: 0.24s; }
.fade-in--delay-4 { transition-delay: 0.32s; }
.fade-in--delay-5 { transition-delay: 0.4s; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .section { padding: 5.5rem 0; }
  .container { padding: 0 1.5rem; }
  .hero { padding: calc(var(--nav-h) + 3rem) 1.5rem 5rem; }
}
@media (max-width: 480px) {
  .hero__ctas .btn,
  .coming-soon__actions .btn { width: 100%; }
}