/* /var/www/e3/website/css/layout.css — Hero, sections, grid, footer, page scaffolding */

.container {
  width: min(1180px, 94vw);
  margin: 0 auto;
  padding: 0 1rem;
}

section { padding: 5rem 0; position: relative; }
section + section { border-top: 1px solid color-mix(in oklab, var(--green-500) 10%, transparent); }

.section-head {
  text-align: center;
  margin-bottom: 3rem;
}
.section-head h2 { justify-content: center; }
.section-head p { max-width: 640px; margin: 0 auto; color: var(--text-dim); }

/* Hero — layered: particles canvas + content glass */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
  overflow: hidden;
}
.hero__particles {
  position: absolute;
  inset: 0;
  z-index: var(--z-particles);
}
.hero__content {
  position: relative;
  z-index: var(--z-glass);
  max-width: 780px;
  padding: 3rem 2.4rem;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--blur-lg)) saturate(1.25);
  -webkit-backdrop-filter: blur(var(--blur-lg)) saturate(1.25);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--green-500) 6%, rgba(0,0,0,.55)),
    color-mix(in oklab, var(--green-500) 2%, rgba(0,0,0,.75)));
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-card), 0 0 80px rgba(52,196,111,.18);
}
.hero__logo {
  width: 112px;
  height: 112px;
  object-fit: contain;
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 0 24px rgba(110,240,160,.55));
}
.hero__badge {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .4em 1em;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--green-700);
  color: var(--green-200);
  font-size: .78rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  margin-bottom: 1.1rem;
  box-shadow: var(--glow-soft);
}
.hero h1 { margin-bottom: .4em; }
.hero h1 span { color: var(--green-300); }
.hero p { font-size: 1.15rem; max-width: 620px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.6rem; }

/* Generic grids */
.grid {
  display: grid;
  gap: 1.6rem;
}
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* About split */
.about {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2.4rem;
  align-items: center;
}
.about__visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: radial-gradient(circle at 50% 50%, var(--green-900), #000);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
}
.about__visual img { width: 80%; filter: drop-shadow(0 0 30px rgba(110,240,160,.5)); }
@media (max-width: 760px) { .about { grid-template-columns: 1fr; } }

/* Tech stack strip */
.tech {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem 3rem;
  margin-top: 2rem;
}
.tech__item {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .55em;
  color: var(--green-200);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .92;
  transition: transform var(--medium) var(--ease), filter var(--medium) var(--ease);
}
.tech__item:hover { transform: translateY(-4px); filter: drop-shadow(0 0 18px rgba(110,240,160,.5)); }
.tech__item img, .tech__item svg { height: 56px; width: auto; }

/* Animated GIF accents */
.gif-accent {
  position: absolute;
  width: 130px;
  height: auto;
  pointer-events: none;
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 20px rgba(52,196,111,.45));
  opacity: .88;
}
.gif-accent--tr { top: -10px; right: -20px; }
.gif-accent--bl { bottom: -20px; left: -10px; }

/* Roadmap */
.roadmap {
  display: grid;
  gap: 1.2rem;
}
.roadmap__item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.2rem;
  align-items: start;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius);
  background: var(--surface-1);
  border: 1px solid var(--border);
  transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
.roadmap__item:hover { border-color: var(--green-500); transform: translateX(4px); }
.roadmap__item h3 { margin: 0 0 .25em; font-size: 1.05rem; }
.roadmap__item p  { margin: 0; color: var(--text-dim); font-size: .92rem; }
@media (max-width: 640px) { .roadmap__item { grid-template-columns: 1fr; } }

/* Changelog */
.changelog-entry {
  padding: 1.1rem 1.3rem;
  border-radius: var(--radius);
  background: var(--surface-1);
  border: 1px solid var(--border);
  margin-bottom: .85rem;
}
.changelog-entry h3 { font-size: 1rem; margin-bottom: .4em; color: var(--green-200); }
.changelog-entry ul { margin: 0; color: var(--text-dim); }
.changelog-date { margin-left: .6em; color: var(--green-600); font-size: .8rem; font-weight: 600; }
.changelog-older { margin-top: .85rem; }
.changelog-toggle {
  display: inline-flex; align-items: center; gap: .4em;
  margin-top: 1rem;
  background: transparent;
  color: var(--green-300);
  border: 1px solid var(--border-strong);
  padding: .55em 1.1em;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.changelog-toggle:hover { border-color: var(--green-400); color: var(--green-100); box-shadow: var(--glow-soft); }

/* Footer */
.footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(52,196,111,.05));
  text-align: center;
  color: var(--text-dim);
  font-size: .9rem;
}
.footer__brand { display: inline-flex; align-items: center; gap: .6em; font-weight: 700; color: var(--green-200); margin-bottom: .75rem; }
.footer__brand img { width: 42px; filter: drop-shadow(0 0 12px rgba(52,196,111,.6)); }
.footer__links { display: flex; gap: 1.2em; justify-content: center; flex-wrap: wrap; margin-top: .6rem; }
.footer__links a { display: inline-flex; align-items: center; gap: .3em; }

/* Utilities */
.center { text-align: center; }
.muted  { color: var(--text-muted); }
.mt-lg  { margin-top: 2.5rem; }
.hide-sm { display: initial; }
@media (max-width: 540px) { .hide-sm { display: none; } }