/* ===== Popcorn Labs / The Equilibrium Platform — dark-only briefing register ===== */
:root {
  --mint: #5FEAD1;
  --mint-dim: #3FA98F;
  --ink: #08090A;
  --panel: #0E1113;
  --panel-2: #14181B;
  --line: rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.16);
  --fg: #EDEFEF;
  --fg-muted: #97A0A3;
  --fg-dim: #7A8285;
  --danger: #E8735F;
  --max: 1180px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 3px;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
::selection { background: var(--mint); color: #04231C; }

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,9,10,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }
.brand .mark { height: 40px; width: auto; flex: none; object-fit: contain; }
.brand .wordmark { display: inline-block; }
.brand .pop { color: var(--mint); }
.brand .labs { color: var(--mint); }
.navlinks { display: flex; align-items: center; gap: 30px; }
.navlinks a { font-size: 14.5px; font-weight: 600; color: var(--fg-muted); transition: color .15s ease; white-space: nowrap; }
.navlinks a:hover, .navlinks a.active { color: var(--fg); }

.navtoggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; padding: 0; margin: 0;
}
.navtoggle span { display: block; width: 22px; height: 2px; background: var(--fg); border-radius: 2px; transition: transform .15s ease, opacity .15s ease; }
.navtoggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navtoggle.open span:nth-child(2) { opacity: 0; }
.navtoggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; flex-direction: column;
  border-top: 1px solid var(--line);
  background: var(--ink);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 16px 28px; font-size: 15.5px; font-weight: 600; color: var(--fg-muted);
  border-bottom: 1px solid var(--line);
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--mint); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px; border-radius: 3px; font-weight: 700; font-size: 14px;
  white-space: nowrap; transition: opacity .15s ease;
}
.btn.primary { background: var(--mint); color: #04231C; }
.btn.primary:hover { opacity: .85; }
.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10.5px 20px; border-radius: 3px; font-weight: 700; font-size: 14px;
  border: 1px solid var(--line-strong); color: var(--fg);
}
.btn-ghost:hover { border-color: var(--mint); color: var(--mint); }

/* ---- Layout helpers ---- */
section { padding: 68px 0; }
.section-tight { padding: 44px 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono);
  font-size: 12.5px; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--mint); margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; background: var(--mint); border-radius: 50%; flex: none; }
h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; margin: 0; color: var(--fg); }
h1 { font-size: clamp(38px, 5.6vw, 68px); line-height: 1.05; }
h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.1; }
h3 { font-size: 20px; line-height: 1.3; }
p { margin: 0; }
.lede { font-size: clamp(16.5px, 1.8vw, 19px); color: var(--fg-muted); line-height: 1.65; }
.center { text-align: center; }
.max-prose { max-width: 700px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-lg { margin-top: 28px; }

/* ---- Hero ---- */
.hero { padding: 76px 0 56px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }
.hero-copy .actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-copy h1 { margin-bottom: 22px; }
.hero-visual { display: flex; align-items: center; justify-content: center; width: 100%; min-width: 0; }
.kernel-orb {
  position: relative; width: 100%; max-width: 400px; aspect-ratio: 1/1;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, rgba(95,234,209,0.16), transparent 62%), var(--panel);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
}
.kernel-orb .ring { position: absolute; border-radius: 50%; border: 1px solid var(--line-strong); }
.kernel-orb .ring.r1 { inset: 13%; animation: spin 34s linear infinite; }
.kernel-orb .ring.r2 { inset: 27%; border-color: rgba(95,234,209,0.28); animation: spin 24s linear infinite reverse; }
.kernel-orb .ring.r2::before, .kernel-orb .ring.r1::before { content:""; position:absolute; width:5px; height:5px; background:var(--mint); border-radius:50%; top:-2.5px; left:calc(50% - 2.5px); }
.kernel-orb .core { width: 24%; height: 24%; border-radius: 50%; background: var(--mint); box-shadow: 0 0 70px 14px rgba(95,234,209,0.35); }
@keyframes spin { to { transform: rotate(360deg); } }

.stat-row { display: flex; gap: 40px; margin-top: 50px; flex-wrap: wrap; }
.stat b { display: block; font-family: var(--mono); font-size: 26px; font-weight: 700; color: var(--mint); }
.stat span { font-size: 13.5px; color: var(--fg-muted); }

/* ---- Bands ---- */
.band { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pipe-line { font-size: clamp(20px, 2.6vw, 30px); font-weight: 700; line-height: 1.4; letter-spacing: -0.01em; }
.pipe-line em { color: var(--mint); font-style: normal; }

/* ---- Video ---- */
.video-frame {
  border: 1px solid var(--line); border-radius: 4px; overflow: hidden;
  background: var(--panel); max-width: 860px; margin: 0 auto;
}
.video-frame video { width: 100%; display: block; background: #000; }

/* ---- Cards ---- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  padding: 28px 26px;
}
.card .icon {
  width: 34px; height: 34px; border-radius: 3px; margin-bottom: 18px;
  background: rgba(95,234,209,0.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--mint); font-weight: 800; font-family: var(--mono); font-size: 14px;
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--fg-muted); font-size: 15px; }
.tag {
  font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  color: var(--mint); background: rgba(95,234,209,0.1);
  padding: 5px 9px; border-radius: 3px; white-space: nowrap;
}

/* ---- Section header ---- */
.section-head { max-width: 660px; margin-bottom: 36px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---- Comparison ---- */
.compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 4px; }
table.compare { width: 100%; border-collapse: collapse; min-width: 720px; background: var(--panel); }
table.compare th, table.compare td { padding: 17px 20px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
table.compare thead th { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--fg-muted); font-weight: 600; }
table.compare th:first-child, table.compare td:first-child { font-weight: 600; color: var(--fg-muted); }
table.compare td.us { font-weight: 600; color: var(--fg); }
table.compare .yes { color: var(--mint); font-weight: 700; }
table.compare .no { color: var(--fg-dim); }
table.compare thead th.us-col { color: var(--mint); }
table.compare tr:last-child td { border-bottom: none; }

/* ---- Checklist / dare ---- */
.pillar-label {
  font-family: var(--mono); font-size: 12.5px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--mint); margin: 32px 0 12px;
}
.pillar-label:first-child { margin-top: 0; }
.checklist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.checklist li {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 4px; font-size: 15px; color: var(--fg);
}
.checklist li::before { content: "?"; font-family: var(--mono); color: var(--mint); font-weight: 700; flex: none; width: 20px; }
.checklist li .why { display: block; margin-top: 6px; font-size: 13.5px; color: var(--fg-muted); font-weight: 400; }
.dare-box {
  border: 1px solid var(--mint-dim); border-radius: 4px; padding: 36px; background: rgba(95,234,209,0.04);
  text-align: center;
}
.dare-box h3 { font-size: 24px; margin-bottom: 14px; }
.dare-box p { color: var(--fg-muted); }

/* ---- White paper cards ---- */
.wp-card { display: flex; flex-direction: column; gap: 12px; }
.wp-card .tag { align-self: flex-start; }
.wp-card p { color: var(--fg-muted); font-size: 14.5px; }
.wp-card .read { color: var(--mint); font-size: 13.5px; font-weight: 600; font-family: var(--mono); margin-top: 4px; }

/* ---- CTA band ---- */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: 16px; }
.cta-band .actions { display: flex; gap: 14px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }

/* ---- Footer ---- */
footer { padding: 56px 0 36px; border-top: 1px solid var(--line); }
.foot-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 36px; flex-wrap: wrap; }
.foot-links { display: flex; gap: 28px; flex-wrap: wrap; }
.foot-links a { color: var(--fg-muted); font-size: 13.5px; font-weight: 600; }
.foot-links a:hover { color: var(--fg); }
.foot-bottom {
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--fg-dim); font-family: var(--mono);
}

/* ---- Page hero (interior pages) ---- */
.page-hero { padding: 56px 0 44px; }
.page-hero .eyebrow { margin-bottom: 18px; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 52px); line-height: 1.12; max-width: 780px; }
.page-hero .lede { margin-top: 22px; }
.founder-line { margin-top: 16px; font-size: 14.5px; color: var(--fg-muted); }
.subhead { font-size: 24px; font-weight: 800; letter-spacing: -0.01em; color: var(--fg); margin-bottom: 16px; }

/* ---- Contact form ---- */
.contact-form { max-width: 560px; margin: 36px auto 0; text-align: left; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-family: var(--mono); font-size: 12px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; color: var(--fg-muted); margin-bottom: 8px;
}
.form-group label .req { color: var(--mint); }
.form-group input, .form-group textarea {
  width: 100%; background: var(--panel); border: 1px solid var(--line-strong);
  border-radius: 3px; padding: 11px 14px; color: var(--fg); font-family: var(--sans);
  font-size: 15px; line-height: 1.5;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--mint);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.contact-form .btn.primary { width: 100%; padding: 13px 20px; font-size: 15px; cursor: pointer; border: none; }
.form-msg {
  margin-top: 16px; padding: 12px 16px; border-radius: 3px; font-size: 14px; font-weight: 600;
  display: none;
}
.form-msg.success { display: block; background: rgba(95,234,209,0.1); color: var(--mint); border: 1px solid var(--mint-dim); }
.form-msg.error { display: block; background: rgba(232,115,95,0.1); color: var(--danger); border: 1px solid var(--danger); }
.contact-form.hidden { display: none; }
.form-success {
  display: none; max-width: 480px; margin: 36px auto 0; text-align: center;
  padding: 40px 32px; border: 1px solid var(--mint-dim); border-radius: 4px;
  background: rgba(95,234,209,0.04);
}
.form-success.visible { display: block; }
.form-success-icon {
  width: 44px; height: 44px; margin: 0 auto 18px; border-radius: 50%;
  background: var(--mint); color: #04231C; font-weight: 800; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.form-success h3 { margin-bottom: 10px; }
.form-success p { color: var(--fg-muted); font-size: 15px; }
@media (max-width: 620px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 260px; width: 260px; margin: 0 auto 20px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr 1fr; }
  .navlinks { display: none; }
  .navtoggle { display: flex; }
}
@media (max-width: 620px) {
  section { padding: 44px 0; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .stat-row { gap: 26px; }
  .foot-grid { flex-direction: column; }
  .foot-bottom { flex-direction: column; gap: 6px; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 20px; }
  .nav .wrap { height: 62px; }
  html { scroll-padding-top: 76px; }
  .brand { font-size: 15px; gap: 6px; }
  .brand .mark { height: 32px; width: auto; }
  .navlinks { gap: 0; }
  .btn.primary { padding: 9px 14px; font-size: 13px; }
  .hero { padding: 36px 0 56px; }
}

/* ---- News feed ---- */
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-item {
  display: block; background: var(--panel); border: 1px solid var(--line);
  border-radius: 4px; padding: 20px 22px; text-decoration: none;
  transition: border-color .15s ease;
}
.news-item:hover { border-color: var(--mint); }
.news-item .tag { margin-bottom: 10px; display: inline-flex; }
.news-item h3 { font-size: 17px; line-height: 1.35; margin: 0 0 8px; color: var(--fg); }
.news-meta {
  display: flex; gap: 8px; font-family: var(--mono); font-size: 12.5px; color: var(--fg-muted);
}
.news-item a:first-child { display: block; text-decoration: none; }
.news-related {
  display: inline-block; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 12.5px; font-weight: 600; color: var(--mint); text-decoration: none;
}
.news-related:hover { text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}