/* ============================================================
   matrAIx — landing page (dark / phosphor console)
   Self-contained so the tool pages (styles.css) stay untouched.
   Syne (display) + JetBrains Mono (body).
   ============================================================ */

:root {
  --bg:        #060807;
  --bg-2:      #0a0e0c;
  --ink:       #d6e6d8;
  --ink-dim:   #6f8273;
  --phos:      #54f6a6;
  --phos-deep: #1f7e58;
  --amber:     #ffb547;
  --rose:      #ff5c6c;
  --cyan:      #8ad0ff;
  --line:      rgba(84, 246, 166, 0.16);
  --line-soft: rgba(84, 246, 166, 0.07);
  --glow:      0 0 22px rgba(84, 246, 166, 0.45);

  --mono: "JetBrains Mono", ui-monospace, monospace;
  --disp: "Syne", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
::selection { background: var(--phos); color: #04140c; }

/* ---------- Background layers ---------- */
#sim { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.9; }
.grain {
  position: fixed; inset: -50%; z-index: 1; pointer-events: none; opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 6s steps(4) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); } 25% { transform: translate(-4%,3%); }
  50% { transform: translate(3%,-4%); } 75% { transform: translate(-2%,-2%); }
}
.scanlines {
  position: fixed; inset: 0; z-index: 2; pointer-events: none; opacity: 0.5;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,0) 0px, rgba(0,0,0,0) 2px, rgba(0,0,0,0.16) 3px, rgba(0,0,0,0) 4px);
  mix-blend-mode: multiply;
}
.vignette {
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  background: radial-gradient(120% 90% at 50% 30%, transparent 45%, rgba(0,0,0,0.8) 100%);
}

/* ---------- Brand ---------- */
.brand {
  font-family: var(--disp); font-weight: 800; font-size: 1.5rem;
  letter-spacing: -0.02em; color: var(--ink); text-decoration: none;
}
.brand .ai { color: var(--phos); text-shadow: var(--glow); }
.brand.small { font-size: 1.2rem; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 40px);
  backdrop-filter: blur(8px);
  background: linear-gradient(to bottom, rgba(6,8,7,0.85), rgba(6,8,7,0));
  border-bottom: 1px solid var(--line-soft);
}
.nav-links { display: flex; gap: 30px; }
.nav-links a {
  color: var(--ink-dim); text-decoration: none;
  font-size: 0.9rem; letter-spacing: 0.04em; text-transform: uppercase;
  position: relative; transition: color 0.25s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 1px;
  background: var(--phos); box-shadow: var(--glow); transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--phos); }
.nav-links a:hover::after { width: 100%; }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--mono); font-size: 0.86rem; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 22px; border: 1px solid var(--line); color: var(--ink);
  background: transparent; cursor: pointer; transition: all 0.25s ease;
}
.btn-ghost:hover { border-color: var(--phos); color: var(--phos); box-shadow: inset 0 0 18px rgba(84,246,166,0.08), 0 0 14px rgba(84,246,166,0.12); }
.btn-solid {
  background: var(--phos); color: #04140c; border-color: var(--phos);
  font-weight: 700; box-shadow: 0 0 26px rgba(84,246,166,0.3);
}
.btn-solid:hover { background: #76ffbf; box-shadow: 0 0 40px rgba(84,246,166,0.55); transform: translateY(-2px); }
.btn-lg { padding: 16px 30px; font-size: 0.95rem; }
.btn .arr { transition: transform 0.25s; }
.btn:hover .arr { transform: translateX(5px); }
.nav-cta { padding: 9px 16px; }

.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-dim); display: inline-block; }
.dot.live { background: var(--phos); box-shadow: var(--glow); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

/* ---------- Hero ---------- */
main { position: relative; z-index: 10; }

.hero {
  max-width: 1100px; margin: 0 auto;
  padding: clamp(140px, 18vw, 180px) clamp(20px, 5vw, 40px) 70px;
  text-align: center;
}
.eyebrow {
  font-size: 0.8rem; letter-spacing: 0.18em; color: var(--ink-dim);
  text-transform: uppercase; display: inline-flex; align-items: center; gap: 12px;
  flex-wrap: wrap; justify-content: center; margin-bottom: 30px;
  opacity: 0; animation: rise 0.7s 0.1s forwards;
}
.eyebrow .tick { color: var(--phos); }
.eyebrow .ver { color: var(--amber); border: 1px solid rgba(255,181,71,0.3); padding: 1px 7px; }
.eyebrow .sep { color: var(--line); }
.eyebrow .status { display: inline-flex; align-items: center; gap: 7px; color: var(--phos); }

.headline {
  font-family: var(--disp); font-weight: 800; line-height: 0.95;
  letter-spacing: -0.03em; margin-bottom: 34px;
}
.headline .line { display: block; font-size: clamp(2.6rem, 8vw, 5.6rem); color: var(--ink); opacity: 0; animation: rise 0.8s forwards; }
.headline .line.dim { color: var(--ink-dim); animation-delay: 0.28s; }
.headline .line:first-child { animation-delay: 0.18s; }

.hero-stat { margin-bottom: 34px; opacity: 0; animation: rise 0.8s 0.4s forwards; }
.megacount { display: flex; align-items: baseline; justify-content: center; gap: 0.22em; }
.megacount .count {
  font-family: var(--disp); font-weight: 800;
  font-size: clamp(4rem, 15vw, 10rem); line-height: 0.85;
  color: var(--phos); text-shadow: 0 0 40px rgba(84,246,166,0.42);
  letter-spacing: -0.04em; font-variant-numeric: tabular-nums;
}
.megacount .count-unit {
  font-family: var(--disp); font-weight: 800;
  font-size: clamp(1.6rem, 5.5vw, 3.6rem);
  color: var(--phos); text-shadow: 0 0 30px rgba(84,246,166,0.35);
  letter-spacing: -0.02em;
}
.stat-cap { display: block; margin-top: 14px; font-size: 1.02rem; color: var(--ink-dim); }
.stat-cap strong { color: var(--ink); font-weight: 500; }

.subhead {
  max-width: 600px; margin: 0 auto 38px; font-size: 1.02rem;
  color: var(--ink-dim); line-height: 1.7;
  opacity: 0; animation: rise 0.8s 0.6s forwards;
}

.cta-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; opacity: 0; animation: rise 0.8s 0.74s forwards; }

.telemetry {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line); background: rgba(10,14,12,0.55);
  backdrop-filter: blur(6px); max-width: 880px; margin: 0 auto;
  opacity: 0; animation: rise 0.9s 0.9s forwards;
}
.tele-cell { padding: 18px 20px; border-right: 1px solid var(--line-soft); display: flex; flex-direction: column; gap: 8px; text-align: left; }
.tele-cell:last-child { border-right: none; }
.tele-label { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); }
.tele-val { font-size: clamp(1.1rem, 2.2vw, 1.5rem); font-weight: 700; color: var(--phos); text-shadow: 0 0 14px rgba(84,246,166,0.3); font-variant-numeric: tabular-nums; }

@keyframes rise { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* ---------- Panels ---------- */
.panel {
  position: relative; z-index: 10;
  max-width: 1080px; margin: 0 auto;
  padding: clamp(70px, 10vw, 110px) clamp(20px, 5vw, 40px) 0;
}
.sec-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.sec-head .idx { font-size: 0.78rem; letter-spacing: 0.2em; color: var(--phos); }
.sec-title {
  font-family: var(--disp); font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3rem); letter-spacing: -0.02em;
  line-height: 1.05; margin: 12px 0 12px;
}
.sec-sub { color: var(--ink-dim); font-size: 1.08rem; line-height: 1.55; }

.target-chips { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-top: 22px; }
.chip {
  font-size: 0.85rem; color: var(--ink-dim);
  background: rgba(84,246,166,0.05); border: 1px solid var(--line-soft);
  padding: 6px 14px; border-radius: 100px;
}

/* ---------- A/B report viewer ---------- */
.report-card { background: var(--bg-2); border: 1px solid var(--line); overflow: hidden; }
.report-tabs {
  display: flex; gap: 6px; padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft); background: rgba(84,246,166,0.03);
  overflow-x: auto; scrollbar-width: none;
}
.report-tabs::-webkit-scrollbar { display: none; }
.rtab {
  font-family: var(--mono); font-weight: 500; font-size: 0.84rem;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink-dim); background: transparent; border: 1px solid transparent;
  padding: 9px 16px; cursor: pointer; white-space: nowrap; transition: all 0.18s;
}
.rtab:hover { color: var(--ink); }
.rtab.active { color: #04140c; background: var(--phos); font-weight: 700; box-shadow: 0 0 16px rgba(84,246,166,0.3); }

.report-body { padding: clamp(20px, 4vw, 34px); }
.report-body.flip { animation: flip 0.4s ease; }
@keyframes flip { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.report-meta { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.report-target { font-family: var(--disp); font-weight: 700; font-size: 1.45rem; letter-spacing: -0.01em; }
.report-variants { margin-top: 8px; color: var(--ink-dim); font-size: 0.98rem; }
.report-variants b { color: var(--phos); font-weight: 700; }
.report-agents { font-size: 0.82rem; font-weight: 600; color: var(--ink-dim); border: 1px solid var(--line); padding: 6px 12px; white-space: nowrap; }

.verdict {
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  background: rgba(84,246,166,0.06); border: 1px solid var(--line);
  padding: 18px 22px; margin-bottom: 26px;
}
.verdict-badge { font-weight: 700; color: #04140c; background: var(--phos); padding: 5px 12px; font-size: 0.86rem; letter-spacing: 0.04em; }
.verdict-lift { font-family: var(--disp); font-weight: 800; font-size: 2.3rem; color: var(--phos); text-shadow: var(--glow); letter-spacing: -0.02em; }
.verdict-metric { color: var(--ink-dim); font-size: 0.98rem; }

.seg-table { width: 100%; border-collapse: collapse; margin-bottom: 28px; }
.seg-table th { text-align: right; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-dim); font-weight: 600; padding: 0 14px 12px; border-bottom: 1px solid var(--line-soft); }
.seg-table th:first-child { text-align: left; }
.seg-table td { padding: 13px 14px; text-align: right; font-size: 1rem; font-variant-numeric: tabular-nums; border-bottom: 1px solid var(--line-soft); font-weight: 600; }
.seg-table td.seg { text-align: left; font-weight: 500; color: var(--ink); }
.seg-table td.win { color: var(--phos); background: rgba(84,246,166,0.07); }
.seg-table td.delta.up { color: var(--phos); }
.seg-table td.delta.down { color: var(--rose); }
.seg-table td.delta.flat { color: var(--ink-dim); }
.seg-table tr:last-child td { border-bottom: none; }

.findings h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-dim); margin-bottom: 14px; }
.findings ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.finding { display: flex; align-items: flex-start; gap: 12px; font-size: 1rem; color: var(--ink); line-height: 1.5; }
.sev { flex: 0 0 auto; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.06em; padding: 3px 8px; margin-top: 3px; }
.sev.high { background: rgba(255,92,108,0.15); color: var(--rose); }
.sev.med  { background: rgba(255,181,71,0.15); color: var(--amber); }
.sev.low  { background: rgba(84,246,166,0.13); color: var(--phos); }

/* ---------- Training data ---------- */
.data-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 30px; align-items: start; }
.data-panel { background: var(--bg-2); border: 1px solid var(--line); overflow: hidden; }
.data-toggle { display: flex; gap: 6px; padding: 12px; border-bottom: 1px solid var(--line-soft); background: rgba(84,246,166,0.03); }
.dt-btn { font-family: var(--mono); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-dim); background: transparent; border: 1px solid transparent; padding: 8px 14px; cursor: pointer; transition: all 0.18s; }
.dt-btn:hover { color: var(--ink); }
.dt-btn.active { color: #04140c; background: var(--phos); font-weight: 700; }
.data-sample { margin: 0; padding: 20px 22px; overflow-x: auto; font-family: var(--mono); font-size: 0.82rem; line-height: 1.7; color: var(--ink-dim); }
.data-sample .jk { color: var(--phos); }
.data-sample .js { color: var(--amber); }
.data-sample .jn { color: var(--cyan); }
.data-points { list-style: none; display: flex; flex-direction: column; gap: 16px; padding-top: 4px; }
.data-points li { font-size: 1.04rem; color: var(--ink-dim); line-height: 1.5; padding-left: 22px; position: relative; }
.data-points li::before { content: "→"; position: absolute; left: 0; color: var(--phos); font-weight: 700; }
.data-points strong { color: var(--ink); font-weight: 500; }

/* ---------- Closing ---------- */
.closing {
  position: relative; z-index: 10; max-width: 800px; margin: 0 auto;
  padding: clamp(90px, 13vw, 150px) clamp(20px, 5vw, 40px); text-align: center;
}
.closing h2 {
  font-family: var(--disp); font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 3.6rem); letter-spacing: -0.03em;
  line-height: 1.05; margin-bottom: 14px;
}
.closing h2 span { color: var(--phos); text-shadow: var(--glow); font-style: italic; }
.closing-sub { color: var(--ink-dim); font-size: 1.06rem; margin-bottom: 32px; }

/* ---------- Footer ---------- */
.foot {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 26px clamp(20px, 5vw, 40px); border-top: 1px solid var(--line);
  background: rgba(6,8,7,0.7); font-size: 0.82rem;
}
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { color: var(--ink-dim); text-decoration: none; transition: color 0.2s; }
.foot-links a:hover { color: var(--phos); }
.foot-meta { color: var(--ink-dim); letter-spacing: 0.06em; text-transform: uppercase; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) { .data-grid { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .nav-links { display: none; }
  .telemetry { grid-template-columns: repeat(2, 1fr); }
  .tele-cell:nth-child(2) { border-right: none; }
  .verdict-lift { font-size: 1.9rem; }
  .seg-table th, .seg-table td { padding-left: 8px; padding-right: 8px; font-size: 0.92rem; }
}
@media (max-width: 460px) { .telemetry { grid-template-columns: 1fr; } .tele-cell { border-right: none; border-bottom: 1px solid var(--line-soft); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .eyebrow, .headline .line, .hero-stat, .subhead, .cta-row, .telemetry { opacity: 1; }
}