/* landing.css — Three.js project landing page */

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

html, body { width: 100%; height: 100%; overflow: hidden; background: #060c14; }

#canvas-wrap {
  position: fixed; inset: 0; z-index: 0;
}
#canvas-wrap canvas { display: block; width: 100% !important; height: 100% !important; }
#canvas-wrap::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(
    180deg,
    rgba(6,12,20,.25) 0%,
    rgba(6,12,20,.45) 40%,
    rgba(6,12,20,.65) 100%
  );
  pointer-events: none;
}

#landing-ui {
  position: fixed; inset: 0; z-index: 10;
  display: flex; flex-direction: column; pointer-events: none;
  overflow-y: auto;
}
#landing-ui * { pointer-events: auto; }

/* ── Header ──────────────────────────────────────────────────────────────── */
.landing-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  background: rgba(6,12,20,.55); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(79,195,247,.15);
}
.landing-back {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,.85); text-decoration: none;
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: .95rem;
  transition: color .2s;
}
.landing-back:hover { color: #4fc3f7; }
.landing-sector-badge {
  padding: 3px 12px; border-radius: 20px; font-size: .72rem;
  font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  background: rgba(79,195,247,.15); border: 1px solid rgba(79,195,247,.35);
  color: #4fc3f7;
}

/* ── Main ────────────────────────────────────────────────────────────────── */
.landing-main {
  flex: 1 0 auto;
  padding: 0 6vw 16px;
  display: flex; align-items: flex-end;
}
.landing-content {
  max-width: 860px; width: 100%;
}

.landing-eyebrow {
  font-size: .82rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: rgba(79,195,247,.7); margin-bottom: 6px;
}
.landing-title {
  font-family: 'Montserrat', sans-serif; font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700; line-height: 1.1; color: #fff;
  text-shadow: 0 0 40px rgba(79,195,247,.4); margin-bottom: 10px;
}
.landing-desc {
  font-size: clamp(.92rem, 1.6vw, 1.08rem); color: rgba(255,255,255,.7);
  line-height: 1.6; margin-bottom: 14px; max-width: 760px;
}

/* ── Idea cards ──────────────────────────────────────────────────────────── */
.landing-ideas {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 5px; margin-bottom: 10px;
}
.landing-idea-card {
  display: flex; gap: 8px; align-items: center;
  background: rgba(255,255,255,.06); backdrop-filter: blur(8px);
  border: 1px solid rgba(79,195,247,.15); border-radius: 7px;
  padding: 5px 10px;
  animation: slideIn .5s ease both;
  transition: background .15s, border-color .15s;
}
.landing-idea-card:hover {
  background: rgba(79,195,247,.1); border-color: rgba(79,195,247,.35);
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}
.idea-num {
  width: 20px; height: 20px; border-radius: 50%; flex-shrink: 0;
  background: rgba(79,195,247,.2); border: 1px solid rgba(79,195,247,.4);
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 700; color: #4fc3f7;
}
.idea-body { flex: 1; }
.idea-title { font-size: .9rem; font-weight: 600; color: rgba(255,255,255,.9); line-height: 1.2; }
.idea-desc { display: none; }

/* ── Demo credentials ────────────────────────────────────────────────────── */
.landing-demo-credentials {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 10px; padding: 6px 14px; border-radius: 6px;
  background: rgba(79,195,247,.08); border: 1px solid rgba(79,195,247,.2);
  font-size: .82rem; color: rgba(255,255,255,.75);
}
.landing-demo-credentials code {
  background: rgba(255,255,255,.1); padding: 1px 7px; border-radius: 4px;
  font-family: 'JetBrains Mono','Courier New',monospace; font-size: .8rem;
  color: #e2e8f0; letter-spacing: .02em;
}

/* ── CTA buttons ─────────────────────────────────────────────────────────── */
.landing-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 2px; }
.cta-btn {
  padding: 12px 28px; border-radius: 8px; font-size: 1rem; font-weight: 700;
  text-decoration: none; transition: all .2s; display: inline-block;
}
.cta-primary {
  background: #4fc3f7; color: #060c14;
}
.cta-primary:hover { background: #81d4fa; transform: translateY(-1px); }
.cta-secondary {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25); color: #fff;
}
.cta-secondary:hover { background: rgba(255,255,255,.2); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.landing-footer {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 10px 28px; font-size: .72rem;
  background: rgba(6,12,20,.55); backdrop-filter: blur(12px);
  border-top: 1px solid rgba(79,195,247,.1); color: rgba(255,255,255,.4);
}
.footer-sep { opacity: .35; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .landing-main { padding: 0 4vw 16px; }
  .landing-content { max-width: 100%; }
  .landing-ideas { grid-template-columns: 1fr; max-height: 45vh; overflow-y: auto; }
  .cta-btn { width: 100%; text-align: center; }
  .landing-cta { flex-direction: column; }
  html, body { overflow: auto; }
}