/* Watt — The Lean Desktop Project
   Shared visual language with the Fe2O3 and CHasm sister sites
   (same palette, same starfield, same card geometry). Adds a
   two-column "doors" grid that's the entire point of this page. */

:root {
  --rust: #f74c00;
  --rust-dark: #b7410e;
  --rust-glow: #ff7a3a;
  --bg: #0a0a14;
  --bg-elev: #161622;
  --bg-card: #1a1a2a;
  --fg: #e6e6ea;
  --fg-dim: #9aa0b0;
  --fg-mute: #6a7080;
  --cyan: #80dfff;
  --green: #4ade80;
  --yellow: #ffe9a8;
  --asm: #2b3a4a;
}

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

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Starfield: same recipe as the sister pages, but the two large
   wash-gradients are now one rust-glow (Fe2O3) and one cyan-glow
   (CHasm/cold-metal) so the doors below visually anchor to them. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1px 1px at 20% 30%,  rgba(255,255,255,0.6), transparent 50%),
    radial-gradient(1px 1px at 60% 20%,  rgba(255,255,255,0.4), transparent 50%),
    radial-gradient(1px 1px at 80% 60%,  rgba(255,255,255,0.7), transparent 50%),
    radial-gradient(1px 1px at 30% 80%,  rgba(255,255,255,0.5), transparent 50%),
    radial-gradient(1px 1px at 70% 90%,  rgba(255,255,255,0.6), transparent 50%),
    radial-gradient(1px 1px at 90% 40%,  rgba(128,223,255,0.5), transparent 50%),
    radial-gradient(2px 2px at 10% 70%,  rgba(255,233,168,0.5), transparent 50%),
    radial-gradient(1px 1px at 50% 50%,  rgba(255,255,255,0.4), transparent 50%),
    radial-gradient(1100px 700px at 25% 110%, rgba(247,76,0,0.13), transparent 60%),
    radial-gradient(1100px 700px at 75% -10%, rgba(128,223,255,0.10), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Hero ----------------------------------------------------- */
.hero {
  padding: 6rem 0 3rem;
  text-align: center;
}
.hero-logo {
  width: 168px;
  height: 168px;
  margin: 0 auto 1.5rem;
  display: block;
  filter: drop-shadow(0 0 38px rgba(247, 76, 0, 0.35))
          drop-shadow(0 0 60px rgba(128, 223, 255, 0.18));
}
.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffe9a8 0%, var(--rust) 50%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.4rem;
  line-height: 1;
}
.tagline {
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  color: var(--fg-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.badges {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.badges img { height: 20px; }

/* ---- Intro ---------------------------------------------------- */
.intro {
  padding: 1rem 0 3rem;
}
.intro .container {
  max-width: 760px;
}
.intro p {
  font-size: clamp(1.05rem, 1.5vw, 1.18rem);
  color: var(--fg);
  line-height: 1.7;
}
.intro p .accent { color: var(--rust-glow); font-weight: 600; }
.intro p .accent-cyan { color: var(--cyan); font-weight: 600; }
.intro .pick {
  margin-top: 1.25rem;
  text-align: center;
  color: var(--fg-mute);
  font-style: italic;
  letter-spacing: 0.08em;
}

/* ---- The two doors ------------------------------------------- */
.doors-section {
  padding: 1rem 0 5rem;
}
.doors {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 980px;
  margin: 0 auto;
}
@media (max-width: 780px) {
  .doors { grid-template-columns: 1fr; gap: 1.5rem; }
}

.door {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid #26263a;
  border-radius: 18px;
  padding: 2.5rem 2rem 2rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.door::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  transition: opacity 0.25s ease;
}
.door.chasm::before {
  background:
    radial-gradient(420px 320px at 50% -20%, rgba(128, 223, 255, 0.12), transparent 65%),
    radial-gradient(280px 220px at 50% 110%, rgba(43, 58, 74, 0.45), transparent 70%);
}
.door.fe2o3::before {
  background:
    radial-gradient(420px 320px at 50% -20%, rgba(247, 76, 0, 0.18), transparent 65%),
    radial-gradient(280px 220px at 50% 110%, rgba(247, 76, 0, 0.10), transparent 70%);
}
.door:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
}
.door.chasm:hover {
  border-color: var(--cyan);
  box-shadow: 0 30px 70px rgba(128, 223, 255, 0.18);
}
.door.fe2o3:hover {
  border-color: var(--rust);
  box-shadow: 0 30px 70px rgba(247, 76, 0, 0.25);
}
.door:hover::before { opacity: 1; }

.door-logo {
  width: 132px;
  height: 132px;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 22px rgba(0, 0, 0, 0.5));
  position: relative;
  z-index: 1;
}
.door h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
  position: relative;
  z-index: 1;
}
.door.chasm h2 {
  background: linear-gradient(135deg, #ffffff 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.door.fe2o3 h2 {
  background: linear-gradient(135deg, var(--yellow) 0%, var(--rust) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.door-kind {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 1.1rem;
  position: relative;
  z-index: 1;
}
.door.chasm .door-kind code { color: var(--cyan); background: transparent; padding: 0; }
.door.fe2o3 .door-kind code { color: var(--rust-glow); background: transparent; padding: 0; }
.door-desc {
  color: var(--fg-dim);
  max-width: 36ch;
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}
.door-cta {
  display: inline-block;
  margin-top: auto;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  position: relative;
  z-index: 1;
  transition: background 0.2s ease, color 0.2s ease;
}
.door.chasm .door-cta { color: var(--cyan); }
.door.fe2o3 .door-cta { color: var(--rust-glow); }
.door.chasm:hover .door-cta { background: var(--cyan); color: var(--bg); }
.door.fe2o3:hover .door-cta { background: var(--rust); color: white; }

/* ---- Numbers row (a small "by the numbers" strip under the
   doors, mirrors the Baseline blog post tone) ------------------- */
.numbers {
  padding: 0 0 4rem;
}
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
}
.metric {
  background: var(--bg-card);
  border: 1px solid #26263a;
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  text-align: center;
}
.metric .v {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--yellow), var(--rust-glow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metric .k {
  display: block;
  font-size: 0.78rem;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}

/* ---- Footer --------------------------------------------------- */
footer {
  padding: 3rem 0 4rem;
  text-align: center;
  color: var(--fg-mute);
  border-top: 1px solid #1a1a2a;
  margin-top: 2rem;
  font-size: 0.92rem;
}
footer a { color: var(--rust-glow); text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer p + p { margin-top: 0.5rem; }

@media (max-width: 600px) {
  .hero { padding: 4rem 0 2rem; }
  .door { padding: 2rem 1.25rem 1.5rem; }
  .door-logo { width: 110px; height: 110px; }
}