/* ===========================================================
   Frontier Space Lab — landing page
   =========================================================== */

:root {
  --bg: #05070a;
  --bg-2: #080b10;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.10);
  --line-soft: rgba(255, 255, 255, 0.06);

  --text: #eef1f5;
  --muted: #98a2ae;
  --muted-2: #6f7884;
  --silver: #c9ced6;

  --accent: #7fb1de;       /* cool, used sparingly */
  --molten: #ff8a3d;       /* tech section only */
  --molten-soft: #ffb073;

  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 14px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  letter-spacing: 0.005em;
}

/* film grain + base gradient overlay across whole page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 10000;
  background: #fff; color: #000; padding: 10px 16px; border-radius: 8px;
}
.skip-link:focus { left: 16px; top: 16px; }

::selection { background: rgba(127, 177, 222, 0.28); }

/* ---------------- Typography helpers ---------------- */
.eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin: 0 0 18px;
}
.eyebrow::before {
  content: ""; display: inline-block;
  width: 26px; height: 1px; background: var(--line);
  vertical-align: middle; margin-right: 12px; transform: translateY(-2px);
}

.h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  line-height: 1.12;
  font-weight: 500;
  letter-spacing: -0.018em;
  margin: 0;
  max-width: 18ch;
}
.lead {
  font-size: clamp(0.95rem, 1.15vw, 1.05rem);
  color: var(--muted);
  line-height: 1.7;
  max-width: 56ch;
  margin: 18px 0 0;
  font-weight: 350;
}
.serif { font-family: var(--serif); font-style: italic; font-weight: 300; }
.silver { color: var(--silver); }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 13.5px; font-weight: 500; letter-spacing: 0.01em;
  padding: 11px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease), box-shadow .35s var(--ease);
  white-space: nowrap;
}
.btn--lg { padding: 14px 28px; font-size: 14px; }
.btn--solid {
  background: #f3f5f8; color: #07090d;
  box-shadow: 0 1px 0 rgba(255,255,255,.4) inset;
}
.btn--solid:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(180,200,230,.4); }
.btn--ghost {
  background: rgba(255,255,255,.02); color: var(--text);
  border-color: var(--line); backdrop-filter: blur(6px);
}
.btn--ghost:hover { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.06); transform: translateY(-2px); }

/* ===========================================================
   NAV
   =========================================================== */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(6, 8, 11, 0.72);
  backdrop-filter: blur(14px) saturate(120%);
  border-bottom-color: var(--line-soft);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { flex: none; filter: drop-shadow(0 0 10px rgba(150,180,210,.18)); }
.brand__name {
  font-size: 15px; font-weight: 600; letter-spacing: 0.04em; color: #fff;
  white-space: nowrap;
}
.brand__name span { color: var(--muted); font-weight: 400; }

.nav__menu { display: flex; gap: 30px; margin-left: auto; }
.nav__menu a {
  font-size: 13px; color: var(--muted); letter-spacing: 0.02em;
  position: relative; padding: 6px 0; transition: color .3s var(--ease);
}
.nav__menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--text); transition: width .35s var(--ease);
}
.nav__menu a:hover { color: var(--text); }
.nav__menu a:hover::after { width: 100%; }

.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__toggle { display: none; }

/* ===========================================================
   HERO
   =========================================================== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  padding-bottom: clamp(64px, 12vh, 130px);
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: -3; }
.hero__bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 38%;
  will-change: transform;
}
.hero__grad {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(120% 80% at 75% 8%, rgba(120,150,190,0.10), transparent 55%),
    linear-gradient(180deg, rgba(5,7,10,0.55) 0%, rgba(5,7,10,0.10) 30%, rgba(5,7,10,0.55) 72%, var(--bg) 100%);
}
.hero__content { position: relative; }
.hero__title {
  font-size: clamp(2.5rem, 6.4vw, 5rem);
  line-height: 1.04; font-weight: 500; letter-spacing: -0.028em;
  margin: 0; color: #fff;
  text-wrap: balance;
  text-shadow: 0 2px 40px rgba(0,0,0,.5);
}
.hero__sub {
  margin: 26px 0 0; max-width: 52ch;
  font-size: clamp(0.98rem, 1.3vw, 1.12rem);
  color: rgba(225,231,238,0.82); font-weight: 350; line-height: 1.65;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

.hero__scroll {
  position: absolute; left: 50%; bottom: 30px; transform: translateX(-50%);
  width: 26px; height: 42px; border: 1px solid rgba(255,255,255,.28); border-radius: 14px;
  display: grid; place-items: start center; padding-top: 8px; z-index: 2;
}
.hero__scroll span {
  width: 3px; height: 7px; border-radius: 2px; background: rgba(255,255,255,.7);
  animation: scrolldot 1.9s var(--ease) infinite;
}
@keyframes scrolldot { 0%{opacity:0;transform:translateY(0)} 30%{opacity:1} 70%{opacity:1;transform:translateY(12px)} 100%{opacity:0;transform:translateY(16px)} }

/* star field (CSS only, cheap) */
.stars { position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff, transparent),
    radial-gradient(1px 1px at 70% 20%, #fff, transparent),
    radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,.7), transparent),
    radial-gradient(1.4px 1.4px at 85% 45%, #fff, transparent),
    radial-gradient(1px 1px at 55% 15%, rgba(255,255,255,.6), transparent),
    radial-gradient(1px 1px at 12% 60%, rgba(255,255,255,.5), transparent);
  background-repeat: no-repeat;
}

/* ===========================================================
   SECTIONS (generic)
   =========================================================== */
.section { position: relative; padding: clamp(72px, 12vh, 150px) 0; }
.section__head { margin-bottom: clamp(36px, 5vw, 64px); }

.h2--wide { max-width: 24ch; }

/* ---------------- COMPARISON ---------------- */
.compare { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }
.compare .section__head { max-width: 760px; }

.compare__cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-top: clamp(8px, 2vw, 20px);
}
.ccard {
  position: relative; border: 1px solid var(--line-soft); border-radius: var(--radius);
  overflow: hidden; background: #0a0d12; isolation: isolate;
  transition: border-color .4s var(--ease), transform .4s var(--ease);
}
.ccard:hover { border-color: var(--line); transform: translateY(-3px); }
.ccard__media { position: absolute; inset: 0; z-index: -1; }
.ccard__media img { width: 100%; height: 100%; object-fit: cover; }
.ccard__shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,7,10,0.30) 0%, rgba(5,7,10,0.55) 45%, rgba(5,7,10,0.92) 100%);
}
.ccard__shade--earth {
  background: linear-gradient(180deg, rgba(5,7,10,0.32) 0%, rgba(8,11,16,0.62) 48%, rgba(5,7,10,0.93) 100%);
}
.ccard__body { position: relative; padding: clamp(22px, 3vw, 34px); padding-top: clamp(220px, 34vw, 340px); }
.ccard__kicker { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.ccard__kicker--accent { color: var(--silver); }
.ccard__title { font-size: clamp(1.25rem, 2vw, 1.6rem); font-weight: 500; letter-spacing: -0.015em; margin: 12px 0 18px; color: #fff; }
.ccard__points { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.ccard__points li {
  position: relative; padding-left: 20px; font-size: 14px; color: var(--silver); line-height: 1.45;
}
.ccard__points li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 6px; height: 1px; background: var(--muted);
}
.ccard--lunar .ccard__points li::before { background: var(--accent); width: 7px; }

/* comparison table */
.ctable {
  margin-top: 22px; border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden;
}
.ctable__row {
  display: grid; grid-template-columns: 1.1fr 1.4fr 2fr; gap: 18px;
  padding: 18px clamp(18px, 2.4vw, 28px); align-items: center;
  border-top: 1px solid var(--line-soft); font-size: 14px; color: var(--muted);
}
.ctable__row:first-child { border-top: none; }
.ctable__row--head {
  background: rgba(255,255,255,0.025); font-size: 11px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--muted-2); padding-block: 14px;
}
.ctable__mass { color: #fff; font-weight: 500; letter-spacing: -0.01em; }
.ctable__win { color: var(--silver); }

/* ---------------- WHAT WE DO ---------------- */
.wwd { background: var(--bg-2); }
.wwd__top {
  display: grid; grid-template-columns: 1fr 0.82fr; gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.wwd__intro .lead { max-width: 48ch; }
.wwd__media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-soft); }
.wwd__media img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; display: block; }

.wwd__steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin-top: clamp(44px, 6vw, 76px); border-top: 1px solid var(--line);
}
.wstep { padding: 30px 28px 30px 0; border-left: 1px solid var(--line-soft); padding-left: 28px; }
.wstep:first-child { border-left: none; padding-left: 0; }
.wstep__no {
  font-size: 12px; letter-spacing: .2em; color: var(--muted-2); font-weight: 600;
}
.wstep h3 { font-size: 1.15rem; font-weight: 500; margin: 14px 0 10px; letter-spacing: -0.01em; }
.wstep p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.6; max-width: 30ch; }

/* ---------------- APPLICATIONS ---------------- */
.apps { background: var(--bg); }
.apps__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.appcard {
  border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden;
  background: var(--panel);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.appcard:hover { transform: translateY(-4px); border-color: var(--line); }
.appcard__media { position: relative; overflow: hidden; aspect-ratio: 4 / 3; }
.appcard__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,7,10,0) 55%, rgba(5,7,10,0.55) 100%);
}
.appcard__media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .6s var(--ease); filter: saturate(0.92) contrast(0.98);
}
.appcard:hover .appcard__media img { transform: scale(1.05); }
.appcard__body { padding: 22px 24px 26px; }
.appcard__no { font-size: 11.5px; letter-spacing: .2em; color: var(--muted-2); font-weight: 600; }
.appcard h3 { font-size: 1.08rem; font-weight: 500; margin: 12px 0 8px; letter-spacing: -0.01em; }
.appcard p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.55; }

/* ---------------- ROADMAP ---------------- */
.roadmap { overflow: hidden; background: #04060a; }
.roadmap__bg { position: absolute; inset: 0; z-index: 0; }
.roadmap__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .28; object-position: center 30%; }
.roadmap__veil { position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, #04060a 0%, rgba(4,6,10,0.7) 40%, rgba(4,6,10,0.82) 100%); }
.roadmap .container { position: relative; z-index: 2; }
.timeline {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
}
.tl { position: relative; padding: 34px 22px 0 0; border-top: 1px solid var(--line); }
.tl__dot {
  position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%;
  background: var(--silver); box-shadow: 0 0 0 4px rgba(201,206,214,.12);
}
.tl__dot--done { background: var(--muted); box-shadow: 0 0 0 4px rgba(152,162,174,.10); }
.tl__dot--live { background: var(--accent); box-shadow: 0 0 0 4px rgba(127,177,222,.18), 0 0 16px rgba(127,177,222,.6); }
.tl__phase { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted-2); }
.tl h3 { font-size: 1.02rem; font-weight: 500; margin: 12px 0 8px; letter-spacing: -0.01em; }
.tl p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.55; max-width: 22ch; }

/* ---------------- CAPABILITIES ---------------- */
.caps { position: relative; background: #04060a; overflow: hidden; }
.caps__grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: stretch;
  min-height: clamp(560px, 70vh, 760px);
}
.caps__body {
  padding: clamp(72px, 11vh, 140px) clamp(40px, 6vw, 90px) clamp(72px, 11vh, 140px) var(--pad);
  max-width: 760px; margin-left: auto; width: 100%;
}
.caps__body .section__head { margin-bottom: clamp(32px, 4vw, 52px); }
.caps__cols {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius);
  overflow: hidden;
}
.capcol { background: #06090e; padding: 26px 26px 30px; }
.capcol__no { font-size: 12px; letter-spacing: .2em; color: var(--accent); font-weight: 600; }
.capcol h3 { font-size: 1.08rem; font-weight: 500; margin: 14px 0 10px; letter-spacing: -0.01em; }
.capcol p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.6; }
.caps__media { position: relative; }
.caps__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.caps__shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, #04060a 0%, rgba(4,6,10,0.45) 28%, rgba(4,6,10,0.12) 100%),
    linear-gradient(180deg, rgba(4,6,10,0.30) 0%, rgba(4,6,10,0.10) 50%, rgba(4,6,10,0.40) 100%);
}

/* ===========================================================
   FINAL CTA
   =========================================================== */
.cta { position: relative; overflow: hidden; padding: clamp(100px, 16vh, 200px) 0; text-align: center; }
.cta__bg { position: absolute; inset: 0; z-index: 0; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 30%; }
.cta__grad { position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(70% 60% at 50% 30%, rgba(120,150,190,0.14), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, rgba(5,7,10,0.55) 40%, rgba(5,7,10,0.78) 100%); }
.cta__content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
.cta__content .eyebrow::before { display: none; }
.cta__content .eyebrow { margin-bottom: 22px; }
.cta__title {
  font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 500; line-height: 1.08;
  letter-spacing: -0.025em; margin: 0; color: #fff; text-wrap: balance;
}
.cta__content .lead { margin-inline: auto; margin-top: 22px; }
.cta__content .hero__actions { justify-content: center; margin-top: 34px; }

/* ===========================================================
   FOOTER
   =========================================================== */
.footer { background: var(--bg-2); border-top: 1px solid var(--line-soft); padding: 64px 0 40px; }
.footer__inner {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 40px;
  flex-wrap: wrap; padding-bottom: 40px; border-bottom: 1px solid var(--line-soft);
}
.footer__tag { color: var(--muted); font-size: 13.5px; margin: 16px 0 0; max-width: 30ch; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 24px; }
.footer__nav a { font-size: 13.5px; color: var(--muted); transition: color .3s var(--ease); }
.footer__nav a:hover { color: var(--text); }
.footer__base {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 28px; font-size: 12px; color: var(--muted-2); letter-spacing: .02em;
}

/* ===========================================================
   REVEAL ANIMATIONS
   =========================================================== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal[data-delay="1"] { transition-delay: .09s; }
.reveal[data-delay="2"] { transition-delay: .18s; }
.reveal[data-delay="3"] { transition-delay: .27s; }
.reveal[data-delay="4"] { transition-delay: .36s; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===========================================================
   RESPONSIVE
   =========================================================== */
@media (max-width: 1000px) {
  .nav__menu { display: none; }
  .apps__grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr 1fr; gap: 4px 24px; }
  .tl { padding-top: 30px; }

  .wwd__top { grid-template-columns: 1fr; gap: clamp(28px, 5vw, 40px); }
  .wwd__media img { aspect-ratio: 16 / 9; }

  .caps__grid { grid-template-columns: 1fr; min-height: 0; }
  .caps__media { order: -1; min-height: clamp(280px, 42vh, 380px); }
  .caps__body { margin-left: 0; padding: clamp(56px, 9vh, 96px) var(--pad); }
}

@media (max-width: 760px) {
  .nav__cta { display: none; }
  .nav__toggle {
    display: inline-flex; flex-direction: column; gap: 5px; justify-content: center;
    width: 42px; height: 42px; background: rgba(255,255,255,.04); border: 1px solid var(--line);
    border-radius: 10px; cursor: pointer; padding: 0 11px;
  }
  .nav__toggle span { display: block; height: 1.5px; background: #fff; border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
  .nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(6.5px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-0px) rotate(-45deg); }

  .nav.is-open .nav__menu {
    display: flex; flex-direction: column; position: absolute; inset: 72px 0 auto 0;
    background: rgba(6,8,11,0.96); backdrop-filter: blur(16px);
    padding: 18px var(--pad) 30px; gap: 4px; border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav__menu a { padding: 12px 0; font-size: 15px; color: var(--text); border-bottom: 1px solid var(--line-soft); }

  .hero { align-items: flex-end; }
  .hero__actions .btn { flex: 1 1 auto; }
  .apps__grid, .timeline { grid-template-columns: 1fr; }
  .timeline { gap: 4px; }
  .footer__inner { flex-direction: column; gap: 28px; }

  .compare__cards { grid-template-columns: 1fr; }
  .ccard__body { padding-top: clamp(200px, 56vw, 300px); }
  .wwd__steps { grid-template-columns: 1fr; border-top: none; }
  .wstep { border-left: none; padding-left: 0; padding-block: 24px; border-top: 1px solid var(--line-soft); }
  .wstep:first-child { border-top: none; padding-top: 0; }
  .caps__cols { grid-template-columns: 1fr; }

  /* comparison table → stacked rows */
  .ctable__row--head { display: none; }
  .ctable__row { grid-template-columns: 1fr; gap: 6px; padding: 20px var(--pad); }
  .ctable__row .ctable__mass { font-size: 15px; margin-bottom: 2px; }
  .ctable__row span:nth-child(2)::before { content: "Earth-launched — "; color: var(--muted-2); }
  .ctable__row span:nth-child(3)::before { content: "Lunar-produced — "; color: var(--muted-2); }
}

/* ===========================================================
   REDUCED MOTION
   =========================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero__scroll span { animation: none; }
}