/* ═══════════════════════════════════════════════════════════
   CONON LABS — style.css
   Theme: Space-grade minimalism · Black / White
   Font: Bebas Neue (display) + DM Mono (body)
═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Mono:wght@300;400;500&display=swap');

/* ─── Reset & Variables ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080808;
  --bg2:       #0f0f0f;
  --bg3:       #141414;
  --line:      rgba(255,255,255,0.07);
  --accent:    #ffffff;
  --muted:     rgba(255,255,255,0.38);
  --dim:       rgba(255,255,255,0.6);
  --font-disp: 'Bebas Neue', sans-serif;
  --font-body: 'DM Mono', monospace;
  --nav-h:     64px;
  --max-w:     860px;
  --section-gap: 120px;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--accent);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #fff; color: #000; }

/* ─── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

/* ─── NAV ───────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
}
#navbar.scrolled {
  background: rgba(8,8,8,0.88);
  border-color: var(--line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo-link { display: flex; align-items: center; text-decoration: none; }
.nav-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0;
  transition: opacity 0.4s ease;
}
#navbar.scrolled .nav-logo { opacity: 1; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-link {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dim);
  position: relative;
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.nav-link:hover,
.nav-link.active { color: var(--accent); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

/* Standout nav button — hero-cta look, sized to fit the tabs */
.nav-cta {
  font-family: var(--font-body);
  font-size: 11px;                          /* same as .nav-link */
  font-weight: 500;
  letter-spacing: 0.18em;                   /* same as .nav-link */
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);                     /* brighter than the dim tabs → stands out */
  border: 1px solid rgba(255,255,255,0.6);
  padding: 9px 18px;
  line-height: 1;
  display: inline-block;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.nav-cta:hover {                            /* the white-fill hover you like */
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

/* ─── Hamburger ─────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--accent);
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ─── Mobile Menu ───────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(8,8,8,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  flex-direction: column;
  padding: 24px 32px 32px;
  gap: 20px;
  z-index: 99;
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
}
.mobile-menu.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.mob-link {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dim);
  transition: color 0.2s;
}
.mob-link:hover { color: var(--accent); }

/* ─── HERO ──────────────────────────────────────────────── */
#hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}

#starfield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Subtle grid overlay */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

/* Radial vignette */
#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 70% at 50% 50%, transparent 40%, var(--bg) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  animation: heroFade 1.2s ease both;
}

@keyframes heroFade {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-logo {
  height: 250px;
  width: auto;
  max-width: 90vw;
  object-fit: contain;
  filter: brightness(0) invert(1);
  margin-bottom: 8px;
}

.hero-tagline {
  font-family: var(--font-disp);
  font-size: clamp(36px, 6vw, 72px);
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--accent);
}

.hero-sub {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-cta {
  margin-top: 16px;
  display: inline-block;
  padding: 12px 40px;
  border: 1px solid rgba(255,255,255,0.35);
  font-size: 10px;
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.hero-cta:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

/* Scroll hint arrow */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: bounce 2s infinite;
}
.hero-scroll-hint span {
  display: block;
  width: 16px;
  height: 16px;
  border-right: 1px solid rgba(255,255,255,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  transform: rotate(45deg);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ─── CONTENT SECTIONS ──────────────────────────────────── */
.content-section {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--line);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.content-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ─── Markdown rendering ────────────────────────────────── */
.md-content h1 {
  font-family: var(--font-disp);
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: 0.06em;
  margin-bottom: 48px;
  color: var(--accent);
  line-height: 1;
}
.md-content h2 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 40px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.md-content h3 {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 28px 0 8px;
}
.md-content p {
  color: var(--dim);
  margin-bottom: 16px;
  max-width: 660px;
}
.md-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}
.md-content ul li {
  color: var(--dim);
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}
.md-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--muted);
}
.md-content strong {
  color: var(--accent);
  font-weight: 500;
}
.md-content em {
  color: var(--muted);
  font-style: normal;
}
.md-content hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}
.md-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(255,255,255,0.3);
  transition: text-decoration-color 0.2s;
}
.md-content a:hover { text-decoration-color: var(--accent); }

/* Loading state */
.md-loading {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ─── FOOTER ────────────────────────────────────────────── */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-name {
  font-family: var(--font-disp);
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.footer-copy {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.footer-gh {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  transition: color 0.2s;
}
.footer-gh:hover { color: var(--accent); }

/* ─── Markdown images ───────────────────────────────────── */
.md-image {
  width: 100%;
  max-width: 660px;
  height: auto;
  display: block;
  margin: 32px 0;
  filter: invert(1);
}

.md-image-noninv {
  width: 20%;
  height: auto;
  display: block;
  margin: 32px auto;
}

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 680px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-logo { height: 40px; }
  .hero-logo { height: 140px; }
  .hero-tagline { font-size: clamp(24px, 8vw, 40px); }
  .section-inner { padding: 0 20px; }
  .content-section { padding: 80px 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}