:root {
  color-scheme: dark;
  --bg: #000000;
  --panel: #1f1f1e;
  --panel-2: #2a2a28;
  --text: #faf9f5;
  --dim: #b0aea5;
  --ash: #6b6b66;
  --accent: #d97757;
  --accent-soft: rgba(217, 119, 87, 0.18);
  --accent-line: rgba(217, 119, 87, 0.35);
  --green: #788c5d;
  --red: #c0392b;
}

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

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 300;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* subtle accent glow behind the hero */
body::before {
  content: "";
  position: fixed;
  inset: -20% 0 auto 0;
  height: 60vh;
  background: radial-gradient(
    ellipse at center top,
    rgba(217, 119, 87, 0.08) 0%,
    transparent 60%
  );
  pointer-events: none;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 640px;
  padding: 4rem 1.5rem 4rem;
}

header.title {
  text-align: center;
  margin-bottom: 2.5rem;
}
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.4em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
h1 {
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--text);
}
.tagline {
  color: var(--dim);
  font-size: 1.05rem;
  max-width: 38ch;
  margin: 0 auto;
}

/* install panel */
.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 2rem 1.75rem;
  text-align: center;
}
.panel h2 {
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
  color: var(--text);
}
.panel p {
  margin: 0 0 1.5rem;
  color: var(--dim);
  font-size: 0.95rem;
}

.board-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
  padding: 0.45rem 0.95rem;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text);
}
.board-chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

/* flash button — high-contrast terra-cotta */
button.flash {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--bg);
  background: var(--accent);
  border: none;
  padding: 0.9rem 2.2rem;
  cursor: pointer;
  border-radius: 8px;
  transition: transform 0.15s ease, filter 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 8px 24px rgba(217, 119, 87, 0.18);
}
button.flash:hover {
  transform: translateY(-1px);
  filter: brightness(1.08);
  box-shadow: 0 12px 32px rgba(217, 119, 87, 0.28);
}
button.flash:active { transform: translateY(0); filter: brightness(0.95); }

button.flash-disabled {
  font-family: "Inter", sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--red);
  background: transparent;
  border: 1px solid rgba(192, 57, 43, 0.5);
  padding: 0.75rem 1.5rem;
  cursor: not-allowed;
  border-radius: 8px;
}

.hint {
  margin: 1.5rem auto 0;
  max-width: 44ch;
  color: var(--dim);
  font-size: 0.85rem;
  line-height: 1.55;
  text-align: center;
}
.hint strong { color: var(--text); font-weight: 500; }
.hint code {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.78rem;
}

.browser-warn {
  display: none;
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  background: rgba(192, 57, 43, 0.12);
  border: 1px solid rgba(192, 57, 43, 0.4);
  color: #f0a8a0;
  font-size: 0.85rem;
  text-align: center;
  border-radius: 6px;
}

/* daemon download section */
.daemon-section {
  margin-top: 1.5rem;
}
.daemon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-top: 1rem;
}
a.dl {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.85rem 0.5rem;
  background: var(--panel-2);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.1s ease;
}
a.dl:hover {
  border-color: var(--accent-line);
  transform: translateY(-1px);
}
a.dl .os {
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
a.dl .name {
  color: var(--dim);
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  word-break: break-all;
}
@media (max-width: 480px) {
  .daemon-grid { grid-template-columns: 1fr; }
}

/* daemon-section inline code style (was inline in HTML) */
.daemon-section code.cli {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
}

/* footer */
footer {
  margin-top: 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ash);
  letter-spacing: 0.02em;
}
footer code {
  font-family: "JetBrains Mono", monospace;
  color: var(--dim);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.75rem;
}
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer .row { margin: 0.4rem 0; }
footer .row-spaced { margin-top: 1rem; }

/* splash hero — mirrors the firmware's sprite-driven mascot splash. */
.splash-hero {
  display: flex;
  justify-content: center;
  margin: 0 auto 1.25rem;
}
.splash-stage {
  position: relative;
  width: 220px;
  height: 220px;
  border-radius: 14px;
  background: var(--bg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(217, 119, 87, 0.18),
    0 12px 40px rgba(217, 119, 87, 0.12);
}
.splash-stage img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  /* No floating animation — sprite stays statically centered. The
     character "lives" by swapping expressions, cross-faded for a
     gentle handoff. */
  transition: opacity 0.45s ease-in-out;
  will-change: opacity;
}
.splash-stage img.active { opacity: 1; }

/* hint variant used by the daemon-section */
.hint-spaced { margin-top: 1.25rem; }

@media (max-width: 480px) {
  .page { padding-top: 2.5rem; }
  h1 { font-size: 2rem; }
  .panel { padding: 1.5rem 1.25rem; }
  .splash-stage { width: 180px; height: 180px; }
}