/* ========== RESET & BASE ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Source Sans Pro', sans-serif;
    background: #1b1f22;
    color: #ffffff;
    overflow-x: hidden;
    font-weight: 400;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ========== VARIABLES ========== */
:root {
    --accent: #ff073a;
    --accent-dim: rgba(255, 7, 58, 0.15);
    --accent-glow: rgba(255, 7, 58, 0.4);
    --accent-hover: #cc052e;
    --accent-rgb: 255, 7, 58;
    --bg: #1b1f22;
    --bg-card: rgba(255, 255, 255, 0.075);
    --bg-card-hover: rgba(255, 255, 255, 0.12);
    --text-primary: #ffffff;
    --text-secondary: #d8d8d8;
    --text-dim: #9ca3af;
    --border: rgba(255,255,255,0.1);
    --mono: 'JetBrains Mono', monospace;
    --display: 'Source Sans Pro', sans-serif;
    --container: 1200px;
    --ward-a: rgba(100,150,255,0.7);
    --ward-b: rgba(255,150,100,0.7);
    --ward-c: rgba(150,255,100,0.7);
}

/* ========== UTILITIES ========== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section-tag {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: block;
    font-weight: 400;
}
.section-title {
    font-family: var(--display);
    font-weight: 800;
    font-size: clamp(2.2rem, 5vw, 4rem);
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.section-padding { padding: 120px 0; }

/* ========== SCROLL ANIMATIONS ========== */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== NAV ========== */
nav.main-nav {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    background: rgba(19,21,25,0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--container); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-logo {
    font-family: var(--display); font-weight: 800; font-size: 1.2rem;
    color: var(--text-primary); letter-spacing: -0.5px;
}
.nav-logo span { color: var(--accent); }
.nav-links {
    display: flex; align-items: center; gap: 28px; list-style: none;
}
.nav-links a {
    font-family: var(--mono); font-size: 0.75rem; letter-spacing: 1px;
    text-transform: uppercase; color: var(--text-secondary); transition: color 0.3s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
    background: var(--accent); color: #fff;
    padding: 8px 20px; border-radius: 6px;
    font-weight: 500; transition: background 0.3s, transform 0.2s;
}
.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }
.nav-hamburger {
    display: none; flex-direction: column; gap: 5px;
    cursor: pointer; background: none; border: none; padding: 4px;
}
.nav-hamburger span { width: 22px; height: 1.5px; background: var(--text-primary); transition: transform 0.3s, opacity 0.3s; }

/* ========== HERO ========== */
#hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; overflow: hidden;
}
#network-canvas {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0;
}
.hero-content {
    position: relative; z-index: 2;
    max-width: var(--container); margin: 0 auto; padding: 0 24px; padding-top: 100px;
}
.hero-eyebrow {
    font-family: var(--mono); font-size: 0.75rem; letter-spacing: 4px;
    text-transform: uppercase; color: var(--accent); margin-bottom: 24px; font-weight: 400;
}
.hero-title {
    font-family: var(--display); font-weight: 800;
    font-size: clamp(3rem, 7vw, 6.5rem); line-height: 1.05;
    color: var(--text-primary); margin-bottom: 28px; letter-spacing: -0.03em;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
    font-size: 1.1rem; color: var(--text-secondary);
    max-width: 560px; line-height: 1.8; margin-bottom: 40px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent); color: #fff; padding: 12px 28px;
    border-radius: 6px; font-family: var(--mono); font-size: 0.8rem;
    letter-spacing: 1px; text-transform: uppercase;
    transition: background 0.3s, transform 0.2s; border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-secondary {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--text-primary); padding: 12px 28px;
    border-radius: 6px; border: 1px solid var(--bg-card-hover);
    font-family: var(--mono); font-size: 0.8rem; letter-spacing: 1px;
    text-transform: uppercase; transition: border-color 0.3s, transform 0.2s; cursor: pointer;
}
.btn-secondary:hover { border-color: var(--accent); transform: translateY(-2px); }

/* ========== MARQUEE ========== */
.marquee-section {
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    padding: 18px 0; overflow: hidden; background: var(--bg);
    position: relative;
    -webkit-overflow-scrolling: auto;
}
.marquee-track {
    display: flex; gap: 56px;
    animation: marquee 30s linear infinite;
    width: -moz-max-content; width: max-content;
    will-change: transform;
    -webkit-transform: translateZ(0); transform: translateZ(0);
}
.marquee-track span {
    font-family: var(--mono); font-size: 0.72rem; letter-spacing: 3px;
    text-transform: uppercase; color: var(--text-dim); white-space: nowrap;
    flex-shrink: 0;
}
.marquee-track span::after { content: '//'; margin-left: 56px; color: var(--accent); opacity: 0.4; }
@keyframes marquee {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-50%, 0, 0); }
}
@media (max-width: 768px) {
    .marquee-track { gap: 32px; animation-duration: 20s; }
    .marquee-track span { font-size: 0.65rem; letter-spacing: 2px; }
    .marquee-track span::after { margin-left: 32px; }
}

/* ========== ABOUT ========== */
#about { background: var(--bg); }
.about-layout {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 56px; align-items: start;
}
.about-text { max-width: none; }
.about-viz { position: sticky; top: 88px; }
.about-text p {
    color: var(--text-secondary); margin-bottom: 24px;
    font-size: 1rem; line-height: 1.8;
}
.about-text strong { color: var(--text-primary); font-weight: 600; }
.about-text strong em { color: inherit; }
.about-text em { color: var(--text-secondary); font-style: italic; }
.nosotrack-noso {
    color: var(--text-primary); font-weight: 700;
    font-family: var(--mono); font-size: 1rem;
}
.nosotrack-highlight {
    color: var(--accent); font-weight: 700;
    font-family: var(--mono); font-size: 1rem;
}

/* Burden stats within about */
.about-stats {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1px; margin-top: 48px; margin-bottom: 56px;
    background: var(--border); border-radius: 10px; overflow: hidden;
}
.about-stat {
    background: var(--bg-card); padding: 36px 28px; text-align: center;
    transition: background 0.3s;
}
.about-stat:hover { background: var(--bg-card-hover); }
.about-stat-label {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 3px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 10px;
}
.about-stat-value {
    font-family: var(--display); font-weight: 800;
    font-size: clamp(2rem, 3.5vw, 2.8rem); color: var(--text-primary);
    line-height: 1; margin-bottom: 6px;
}
.about-stat-detail {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--text-dim);
}

/* 3D Network viz container in About */
#three-container {
    width: 100%; height: 480px; position: relative;
    border: 1px solid var(--border); border-radius: 10px;
    overflow: hidden; background: rgba(0,0,0,0.2);
}
#three-container canvas { display: block; }
.viz-legend {
    display: flex; flex-wrap: wrap; justify-content: center; align-items: flex-start; gap: 0;
    margin-top: 12px;
    background: rgba(19,21,25,0.85); backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border); border-radius: 8px;
    padding: 10px 8px; font-family: var(--mono); font-size: 0.65rem;
    letter-spacing: 1px; color: var(--text-secondary);
}
.viz-legend-group {
    display: flex; flex-direction: column; align-items: flex-start;
    padding: 4px 20px;
}
.viz-legend-sep {
    width: 1px; background: var(--border); align-self: stretch; margin: 4px 0;
}
.viz-legend-title {
    font-weight: 500; color: var(--text-dim); font-size: 0.62rem;
    margin-bottom: 6px; letter-spacing: 2px; white-space: nowrap;
}
.viz-legend-item { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; white-space: nowrap; }
.viz-legend-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.viz-legend-diamond {
    width: 9px; height: 9px; flex-shrink: 0;
    background: #888;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}
@media (max-width: 600px) {
    .viz-legend { justify-content: flex-start; }
    .viz-legend-group { padding: 4px 14px; }
}
.viz-tooltip {
    position: absolute; background: rgba(19,21,25,0.9);
    border: 1px solid var(--accent); border-radius: 6px;
    padding: 8px 12px; font-family: var(--mono); font-size: 0.7rem;
    color: var(--text-primary); pointer-events: none; z-index: 20; display: none;
}

/* ========== HOW IT WORKS / PIPELINE ========== */
#platform { background: var(--bg); position: relative; overflow: hidden; }
#pipeline-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.pipeline-wrap { position: relative; z-index: 1; }
.pipeline-subtitle {
    color: var(--text-secondary); font-size: 1rem; max-width: 620px;
    margin-bottom: 56px; line-height: 1.8;
}

/* 4-Step vertical flow */
.pipeline-flow {
    display: flex; flex-direction: column; align-items: center;
    gap: 0; max-width: 900px; margin: 0 auto;
}
.pipeline-step { width: 100%; position: relative; }
.pipeline-step-badge { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.pipeline-step-num {
    width: 30px; height: 30px; border-radius: 50%;
    background: rgba(var(--accent-rgb), 0.1); border: 1px solid rgba(var(--accent-rgb), 0.25);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono); font-size: 0.65rem; font-weight: 500;
    color: var(--accent); flex-shrink: 0;
}
.pipeline-step-label {
    font-family: var(--mono); font-size: 0.65rem;
    letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim);
}

.pipeline-sources {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.pipeline-single { width: 100%; }

/* Connector */
.pipeline-connector {
    display: flex; align-items: center; justify-content: center;
    flex-direction: column; height: 56px; position: relative; width: 100%;
}
.pipeline-connector canvas { width: 100%; height: 100%; display: block; }

/* Glassmorphism card */
.p-card {
    position: relative; background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.05); border-radius: 12px;
    padding: 22px; overflow: hidden;
    transition: border-color 0.4s, transform 0.4s, box-shadow 0.4s;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.p-card:hover {
    border-color: rgba(var(--accent-rgb), 0.2);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(var(--accent-rgb), 0.04);
}
.p-card-glow {
    position: absolute; top: -40px; right: -40px;
    width: 100px; height: 100px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.06) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none; opacity: 0; transition: opacity 0.6s;
}
.p-card:hover .p-card-glow { opacity: 1; }

/* Card canvas */
.p-card-canvas {
    width: 100%; height: 100px; display: block;
    border-radius: 8px; margin-bottom: 14px;
    background: rgba(0,0,0,0.25);
}

/* Engine hero card */
.p-card--engine {
    border-color: rgba(var(--accent-rgb), 0.12);
    background: rgba(var(--accent-rgb), 0.015);
}
.p-card--engine .p-card-canvas {
    height: 420px;
    border: 1px solid rgba(255,255,255,0.03);
    background: rgba(0,0,0,0.4);
    margin-bottom: 0;
    border-radius: 8px 8px 0 0;
}
/* Engine timeline controls */
.eng-viewport { position: relative; }
.eng-replay {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1px;
    text-transform: uppercase; padding: 4px 10px; border-radius: 4px;
    background: rgba(255,255,255,.08); border: 1px solid var(--border);
    color: #ececec; cursor: pointer; transition: all .25s; white-space: nowrap;
}
.eng-replay:hover { background: var(--accent-dim); border-color: var(--accent-glow); color: var(--accent); }
.eng-spd {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1px;
    padding: 3px 9px; border-radius: 4px; white-space: nowrap;
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
    color: #b0b7c0; cursor: pointer; transition: all .25s;
}
.eng-spd:hover { background: var(--bg-card-hover); color: #ececec; }
.eng-pause {
    display: flex; align-items: center; justify-content: center;
    width: 24px; height: 24px; border-radius: 4px; padding: 0; flex-shrink: 0;
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
    color: #b0b7c0; cursor: pointer; transition: all .25s;
}
.eng-pause:hover { background: var(--bg-card-hover); color: #ececec; }
.eng-pause svg { width: 8px; height: 10px; }
.eng-tbar {
    height: 36px; background: rgba(13,15,18,.92);
    border: 1px solid rgba(255,255,255,0.03); border-top: none;
    border-radius: 0 0 8px 8px;
    display: flex; align-items: center; padding: 0 12px; gap: 8px;
}
.eng-tl { font-family: var(--mono); font-size: .6rem; color: #b0b7c0; letter-spacing: 1px; white-space: nowrap; user-select: none; }
.eng-track { flex: 1; height: 6px; background: rgba(255,255,255,.06); border-radius: 3px; position: relative; cursor: pointer; }
.eng-tfill { position: absolute; top: 0; left: 0; height: 100%; background: var(--accent); border-radius: 3px; width: 0; pointer-events: none; }
.eng-thandle {
    position: absolute; top: 50%; width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent); border: 2px solid #fff; transform: translate(-50%,-50%);
    left: 0; cursor: grab; z-index: 2; box-shadow: 0 0 8px rgba(var(--accent-rgb), .5);
}
.eng-thandle:active { cursor: grabbing; transform: translate(-50%,-50%) scale(1.2); }
.engine-features {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 10px; margin-top: 14px;
}
.engine-feat {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 8px; padding: 10px 12px;
    font-family: var(--mono); font-size: 0.65rem;
    color: var(--text-secondary); letter-spacing: 0.3px;
}
.engine-feat strong {
    display: block; color: var(--text-primary);
    font-family: var(--display); font-size: 0.75rem;
    margin-bottom: 2px; font-weight: 600;
}

.p-card-tag {
    font-family: var(--mono); font-size: 0.82rem;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--accent); margin-bottom: 6px; font-weight: 600;
}
.p-card-title {
    font-family: var(--display); font-weight: 700;
    font-size: 1rem; color: var(--text-primary);
    margin-bottom: 5px; line-height: 1.3;
}
.p-card--engine .p-card-title { font-size: 1.25rem; margin-bottom: 8px; }
.p-card--engine .p-card-tag { font-size: 1rem; }
.p-card-desc {
    font-size: 0.8rem; color: var(--text-secondary); line-height: 1.7;
}

/* ========== STEP 4 — ALERTS & REPORTS (single card) ========== */
.p-card--alerts {
    border-color: rgba(var(--accent-rgb), 0.1);
    background: rgba(var(--accent-rgb), 0.012);
}
.alerts-viz {
    margin-top: 18px; padding: 20px 16px 16px;
    background: rgba(0,0,0,0.28); border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.03);
}
.alerts-viz-inner {
    display: grid; grid-template-columns: 1fr auto; gap: 20px;
    align-items: start;
}
/* Chart area */
.alerts-chart-wrap { position: relative; }
.alerts-chart-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px;
}
.alerts-chart {
    width: 100%; height: 140px; display: block;
    border-radius: 6px; background: rgba(0,0,0,0.2);
}
.alerts-chart-legend {
    display: flex; gap: 14px; margin-top: 8px;
}
.alerts-legend-item {
    display: flex; align-items: center; gap: 5px;
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
    color: var(--text-dim);
}
.alerts-legend-dot {
    width: 7px; height: 3px; border-radius: 2px; flex-shrink: 0;
}
/* Side panel with alerts */
.alerts-side {
    display: flex; flex-direction: column; gap: 8px;
    min-width: 200px;
}
.alerts-side-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 2px;
}
/* Alert terminal — JS-driven typewriter loop */
.alerts-terminal {
    display: flex; flex-direction: column; gap: 0;
    background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.04);
    border-radius: 6px; padding: 8px 10px;
    height: 110px; min-height: 110px; max-height: 110px;
    font-family: var(--mono); font-size: 0.62rem;
    color: var(--text-secondary); letter-spacing: 0.3px;
    overflow: hidden;
}
.alerts-terminal-line {
    display: flex; align-items: center; gap: 6px;
    padding: 3px 0; white-space: nowrap;
}
.alerts-terminal-icon { width: 12px; height: 12px; flex-shrink: 0; }
.alerts-terminal-badges { display: flex; gap: 4px; margin-left: auto; flex-shrink: 0; }
.alerts-terminal-badge {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
    padding: 1px 5px; border-radius: 3px;
    white-space: nowrap;
}
.alerts-terminal-badge--score {
    background: rgba(var(--accent-rgb), 0.12); color: var(--accent);
}
.alerts-terminal-badge--ward {
    border: 1px solid rgba(255,255,255,0.08);
}
.alerts-terminal-badge--ward-a { background: rgba(100,150,255,0.15); color: rgba(100,150,255,0.9); border-color: rgba(100,150,255,0.25); }
.alerts-terminal-badge--ward-b { background: rgba(255,150,100,0.15); color: rgba(255,150,100,0.9); border-color: rgba(255,150,100,0.25); }
.alerts-terminal-badge--ward-c { background: rgba(150,255,100,0.15); color: rgba(150,255,100,0.9); border-color: rgba(150,255,100,0.25); }
.alerts-terminal-cursor {
    display: inline-block; width: 5px; height: 10px;
    background: var(--accent); opacity: 0.7;
    animation: termCursorBlink 0.8s step-end infinite;
}
@keyframes termCursorBlink { 50% { opacity: 0; } }

@media (max-width: 768px) {
    .alerts-viz-inner { grid-template-columns: 1fr; }
    .alerts-side { min-width: 0; }
}

/* ========== STEP 5 — IPC CO-PILOT ========== */
.p-card--ipc {
    border-color: rgba(var(--accent-rgb), 0.12);
    background: rgba(var(--accent-rgb), 0.015);
}
/* ── IPC Co-Pilot Visualization ── */
.ipc-pipeline-viz {
    margin-top: 18px; padding: 24px 16px 20px;
    background: rgba(0,0,0,0.28); border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.03);
    display: flex; flex-direction: column; gap: 0;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.ipc-pipeline-viz::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.ipc-row { display: flex; align-items: center; justify-content: center; width: 100%; position: relative; z-index: 1; }

/* ── Chat scene: Doctor + AI icons with pop-up bubbles ── */
.ipc-chat-scene {
    display: flex; align-items: stretch; gap: 0; width: 100%;
}
.ipc-avatar {
    display: flex; flex-direction: column; align-items: center; flex-shrink: 0;
    width: 56px; position: relative;
}
.ipc-avatar--expert {
    justify-content: flex-start; padding-top: 4px;
}
.ipc-avatar--expert .ipc-avatar-label {
    position: absolute; top: 52px;
}
.ipc-avatar-ring {
    width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    position: relative; transition: box-shadow 0.4s;
}
.ipc-avatar--expert .ipc-avatar-ring {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
}
.ipc-avatar--ai {
    justify-content: flex-end; padding-bottom: 0;
}
.ipc-avatar--ai .ipc-avatar-label {
    position: absolute; bottom: -14px;
}
.ipc-avatar--ai .ipc-avatar-ring {
    background: rgba(var(--accent-rgb), 0.06);
    border: 1px solid rgba(var(--accent-rgb), 0.18);
}
.ipc-avatar.speaking .ipc-avatar-ring {
    box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.25);
}
.ipc-avatar--expert.speaking .ipc-avatar-ring {
    box-shadow: 0 0 12px rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.2);
}
.ipc-avatar-icon { width: 28px; height: 28px; }
.ipc-avatar-label {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1px;
    text-transform: uppercase; color: var(--text-dim); margin-top: 5px;
    text-align: center; white-space: nowrap;
}
.ipc-bubble-area {
    flex: 1; height: 90px; min-height: 90px; max-height: 90px;
    display: flex; flex-direction: column; justify-content: space-between;
    overflow: hidden; padding: 4px 10px;
    position: relative;
}
.ipc-bubble {
    max-width: 85%;
    padding: 6px 12px; border-radius: 12px;
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.3px;
    line-height: 1.5; position: relative;
    display: flex; align-items: center;
    animation: ipcBubbleFadeIn 0.35s ease forwards;
    opacity: 0;
}
.ipc-bubble.exit {
    position: absolute; pointer-events: none;
    animation: ipcBubbleFadeOut 0.25s ease forwards;
}
@keyframes ipcBubbleFadeIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes ipcBubbleFadeOut {
    to { opacity: 0; transform: scale(0.96); }
}
/* Speech bubble tails */
.ipc-bubble::before {
    content: ''; position: absolute; top: 50%; width: 0; height: 0;
    border: 5px solid transparent;
}
.ipc-bubble--expert {
    margin-right: auto;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.9);
    border-radius: 12px 12px 12px 4px;
}
.ipc-bubble--expert::before {
    left: -9px; transform: translateY(-50%);
    border-right-color: rgba(255,255,255,0.08);
}
.ipc-bubble--ai {
    margin-left: auto;
    background: rgba(var(--accent-rgb), 0.07);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    color: rgba(255,255,255,0.9);
    border-radius: 12px 12px 4px 12px;
}
.ipc-bubble--ai::before {
    right: -9px; left: auto; transform: translateY(-50%);
    border-left-color: rgba(var(--accent-rgb), 0.15);
}
.ipc-bubble-cursor {
    display: inline-block; width: 5px; height: 10px;
    background: var(--accent); opacity: 0.8;
    animation: ipcBlink 0.7s step-end infinite;
    margin-left: 2px; vertical-align: middle;
    border-radius: 1px;
}
@keyframes ipcBlink { 50% { opacity: 0; } }

/* ── Vertical connectors ── */
.ipc-vconnector {
    display: flex; flex-direction: column; align-items: center;
    padding: 4px 0;
}
.ipc-vconnector svg { width: 20px; height: 28px; }
.ipc-vconnector--multi svg { height: 36px; }

/* ── Scenario cards — compact horizontal row ── */
.ipc-scenarios-row {
    display: flex; gap: 6px; width: 100%;
}
.ipc-scenario-card {
    flex: 1; min-width: 0;
    display: flex; align-items: flex-start; gap: 6px;
    padding: 7px 8px; border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.06);
    font-family: var(--mono);
    color: var(--text-secondary); transition: all 0.5s ease;
    background: rgba(255,255,255,0.02);
    position: relative; overflow: hidden;
}
.ipc-scenario-card::after {
    content: '';
    position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
    transition: left 0.6s ease;
}
.ipc-scenario-card.active {
}

.ipc-sc-body {
    display: flex; flex-direction: column; gap: 1px; flex: 1; min-width: 0;
}
.ipc-sc-num {
    font-size: 0.6rem; letter-spacing: 1px; text-transform: uppercase;
    color: var(--text-dim); font-weight: 700;
}
.ipc-sc-title {
    font-size: 0.62rem; letter-spacing: 0.3px; color: var(--text-secondary);
    font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    margin-bottom: 2px;
}
.ipc-sc-details {
    display: flex; flex-direction: column; gap: 1px;
}
.ipc-sc-detail {
    font-size: 0.6rem; letter-spacing: 0.3px; color: rgba(255,255,255,0.8);
    display: flex; justify-content: space-between; gap: 6px;
}
.ipc-sc-k {
    color: rgba(255,255,255,0.65); text-transform: uppercase; letter-spacing: 0.5px;
    flex-shrink: 0;
}
.ipc-scenario-dot {
    width: 6px; height: 6px; border-radius: 2px; flex-shrink: 0; margin-top: 3px;
    transition: box-shadow 0.5s;
}
.ipc-scenario-card.active .ipc-scenario-dot { box-shadow: none; }
/* Terminal-edit cursor for AI parameter modifications */
.ipc-sc-cursor {
    display: inline-block; width: 4px; height: 0.9em;
    background: #ff073a; margin-left: 1px; vertical-align: text-bottom;
    animation: ipcCursorBlink 0.5s step-end infinite;
}
@keyframes ipcCursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.ipc-sc-detail.editing { color: rgba(255,7,58,0.9); }

.ipc-scenario-dot--blue { background: #3b82f6; color: #3b82f6; }
.ipc-scenario-dot--purple { background: #8b5cf6; color: #8b5cf6; }
.ipc-scenario-dot--teal { background: #14b8a6; color: #14b8a6; }
.ipc-scenario-dot--amber { background: #f59e0b; color: #f59e0b; }

.ipc-section-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px;
    text-align: center; width: 100%; position: relative; z-index: 1;
}

/* ── Simulation engine — enhanced ── */
.ipc-engine-box {
    display: flex; align-items: center; justify-content: center;
    padding: 8px 20px; border-radius: 7px;
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    background: rgba(var(--accent-rgb), 0.03);
    position: relative; overflow: hidden;
    transition: border-color 0.5s, box-shadow 0.5s;
    width: 100%; max-width: 360px;
}
.ipc-engine-box.processing {
    border-color: rgba(var(--accent-rgb), 0.15);
}
.ipc-engine-glow {
    position: absolute; inset: 0; opacity: 0;
    background: radial-gradient(ellipse at center, rgba(var(--accent-rgb), 0.08), transparent 70%);
    transition: opacity 0.5s;
}
.ipc-engine-box.processing .ipc-engine-glow { opacity: 0; }
.ipc-engine-canvas {
    position: absolute; inset: 0; width: 100%; height: 100%;
    opacity: 0.25; pointer-events: none;
}
.ipc-engine-box.processing .ipc-engine-canvas { opacity: 0.5; }
.ipc-engine-content {
    display: flex; align-items: center; gap: 8px;
    position: relative; z-index: 1;
}
.ipc-engine-gears { display: flex; align-items: center; }
.ipc-engine-icon { flex-shrink: 0; animation: gearSpin 6s linear infinite; }
.ipc-engine-icon--lg { width: 24px; height: 24px; }
.ipc-engine-icon--sm { width: 16px; height: 16px; margin-left: -4px; animation-direction: reverse; animation-duration: 4s; }
.ipc-engine-box.processing .ipc-engine-icon { animation-duration: 1.8s; }
.ipc-engine-box.processing .ipc-engine-icon--sm { animation-duration: 1.2s; }
@keyframes gearSpin { to { transform: rotate(360deg); } }
.ipc-engine-text { display: flex; flex-direction: column; gap: 2px; }
.ipc-engine-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--accent); font-weight: 700;
}
.ipc-engine-status {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
    color: rgba(var(--accent-rgb), 0.75);
    transition: color 0.5s;
}
.ipc-engine-box.processing .ipc-engine-status { color: rgba(var(--accent-rgb), 0.85); }

/* ── Spider / Radar Plot ── */
.ipc-spider-container {
    display: flex; flex-direction: column; align-items: center;
    width: 100%; position: relative; z-index: 1;
}
#ipc-spider-canvas {
    width: 100%; max-width: 440px; height: 280px;
    border-radius: 8px;
}

/* ── Optimal intervention callout ── */
.ipc-optimal {
    display: flex; flex-direction: column; gap: 6px;
    padding: 10px 14px 8px; border-radius: 8px;
    border: 1px solid rgba(20,184,166,0.25);
    background: linear-gradient(135deg, rgba(20,184,166,0.07) 0%, rgba(20,184,166,0.02) 100%);
    margin-top: 4px; position: relative; overflow: hidden;
    opacity: 0; transform: translateY(6px);
    animation: ipcOptimalReveal 0.6s ease forwards;
    animation-delay: 2s;
    box-shadow: 0 0 20px rgba(20,184,166,0.08), inset 0 1px 0 rgba(20,184,166,0.15);
}
.ipc-optimal::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(20,184,166,0.5), transparent);
}
@keyframes ipcOptimalReveal {
    to { opacity: 1; transform: translateY(0); }
}
.ipc-optimal-badge {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: rgba(20,184,166,0.9);
    background: rgba(20,184,166,0.1); border: 1px solid rgba(20,184,166,0.2);
    border-radius: 3px; padding: 1px 6px;
    font-weight: 600; flex-shrink: 0;
}
.ipc-optimal-header {
    display: flex; align-items: center; gap: 6px;
    margin-left: 20px;
}
.ipc-optimal-icon { width: 17px; height: 17px; position: absolute; top: 8px; left: 10px; }
.ipc-optimal-title {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.8px;
    text-transform: uppercase; color: #5eead4; font-weight: 700;
}
.ipc-optimal-subtitle {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
    color: rgba(94,234,212,0.6);
}
.ipc-optimal-metrics {
    display: flex; gap: 4px;
}
.ipc-optimal-metric {
    flex: 1; display: flex; flex-direction: column; align-items: center;
    gap: 1px; padding: 4px 3px; border-radius: 5px;
    background: rgba(20,184,166,0.05);
    border: 1px solid rgba(20,184,166,0.1);
}
.ipc-optimal-metric-val {
    font-family: var(--mono); font-size: 0.65rem; font-weight: 700;
    color: #5eead4; letter-spacing: 0.5px;
}
.ipc-optimal-metric-label {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
    color: rgba(94,234,212,0.7); text-transform: uppercase; text-align: center;
}
.ipc-optimal-compare {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.3px;
    color: rgba(255,255,255,0.4); text-align: center;
    padding-top: 6px; border-top: 1px solid rgba(20,184,166,0.08);
}
.ipc-optimal-compare strong {
    color: rgba(94,234,212,0.8); font-weight: 600;
}

/* ── Animated particles on vertical connectors ── */
.ipc-vparticle { animation: ipcVParticle 2s linear infinite; }
@keyframes ipcVParticle {
    0% { cy: 2; opacity: 0; }
    15% { opacity: 0.8; }
    85% { opacity: 0.8; }
    100% { cy: 32; opacity: 0; }
}

@media (max-width: 768px) {
    .engine-features { grid-template-columns: 1fr; }
    .p-card-canvas { height: 80px; }
    .p-card--engine .p-card-canvas { height: 280px; }
    .ipc-scenarios-row { flex-wrap: wrap; }
    .ipc-scenarios-row .ipc-scenario-card { flex: 1 1 calc(50% - 4px); min-width: calc(50% - 4px); }
    .ipc-sc-details { display: none; }
    #ipc-spider-canvas { height: 220px; }
    .ipc-optimal { padding: 8px 10px; }
    .ipc-optimal-title { font-size: 0.55rem; }
    .ipc-optimal-metrics { flex-wrap: wrap; }
    .ipc-optimal-metric { flex: 1 1 calc(50% - 4px); min-width: calc(50% - 4px); }
    .ipc-optimal-compare { font-size: 0.58rem; }
    .ipc-engine-box { max-width: 100%; }
    .ipc-avatar { width: 44px; }
    .ipc-avatar-icon { width: 34px; height: 34px; }
    .ipc-bubble { font-size: 0.58rem; }
}

/* ========== RESEARCH ========== */
.research-intro {
    max-width: 700px; color: var(--text-secondary);
    margin-bottom: 48px; font-size: 1rem; line-height: 1.8;
}
.research-sub {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 3px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 20px;
}
.pub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.pub-card {
    display: block; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: 10px; padding: 24px;
    transition: border-color 0.3s, transform 0.3s, background 0.3s;
}
.pub-card:hover {
    border-color: rgba(var(--accent-rgb), 0.25); background: var(--bg-card-hover);
    transform: translateY(-2px);
}
.pub-tag {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--accent); background: var(--accent-dim);
    padding: 3px 8px; border-radius: 4px; display: inline-block; margin-bottom: 10px;
}
.pub-title {
    font-family: var(--display); font-weight: 700; font-size: 1.05rem;
    color: var(--text-primary); margin-bottom: 6px;
}
.pub-desc { color: var(--text-secondary); font-size: 0.85rem; }
.pub-arrow {
    display: inline-block; margin-top: 10px; color: var(--accent);
    font-size: 0.85rem; transition: transform 0.3s;
}
.pub-card:hover .pub-arrow { transform: translateX(4px); }

/* ========== TIMELINE ========== */
.timeline-wrapper { position: relative; margin: 8px 0 0; }
.timeline-scroll {
    overflow-x: auto; overflow-y: visible;
    padding-bottom: 12px;
    scrollbar-width: thin; scrollbar-color: rgba(var(--accent-rgb), 0.2) transparent;
    -webkit-overflow-scrolling: touch;
}
.timeline-scroll::-webkit-scrollbar { height: 3px; }
.timeline-scroll::-webkit-scrollbar-thumb { background: rgba(var(--accent-rgb), 0.2); border-radius: 2px; }
.timeline-track {
    display: flex; align-items: flex-end; position: relative;
    min-width: max-content; padding: 24px 40px 52px;
}
.timeline-track::before {
    content: ''; position: absolute; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 4%, var(--border) 96%, transparent);
    bottom: 58px;
}
.tl-milestone {
    display: flex; flex-direction: column; align-items: center;
    margin: 0 18px; position: relative; cursor: default;
}
.tl-milestone:focus { outline: none; }
.tl-card {
    display: block; width: 158px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 14px 14px 12px;
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
    text-decoration: none; color: inherit; cursor: pointer;
}
.tl-milestone:hover .tl-card,
.tl-milestone:focus-within .tl-card {
    border-color: var(--accent-glow);
    background: var(--bg-card-hover);
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.08);
}
.tl-year-badge {
    font-family: var(--mono); font-size: 0.62rem; letter-spacing: 1.5px;
    color: var(--accent); background: var(--accent-dim); padding: 2px 7px;
    border-radius: 4px; display: inline-block; margin-bottom: 8px;
}
.tl-method {
    font-family: var(--display); font-weight: 700; font-size: 0.84rem;
    color: var(--text-primary); margin-bottom: 3px; line-height: 1.3;
}
.tl-authors {
    font-family: var(--mono); font-size: 0.62rem; color: var(--text-dim);
    letter-spacing: 0.3px; margin-bottom: 10px;
}
.tl-pathogens { display: flex; flex-wrap: wrap; gap: 4px; }
.tl-pathogen {
    display: inline-flex; align-items: center; gap: 3px;
    font-size: 0.62rem; padding: 2px 6px;
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    border-radius: 20px; color: var(--text-dim); white-space: nowrap;
}
.tl-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; gap: 6px; }
.tl-card-top .tl-year-badge { margin-bottom: 0; }
.tl-type-badge {
    font-family: var(--mono); font-size: 0.58rem; letter-spacing: 1px;
    text-transform: uppercase; padding: 2px 6px; border-radius: 3px;
}
.tl-type-method {
    color: var(--accent); background: var(--accent-dim);
}
.tl-type-application {
    color: #6496ff; background: rgba(100,150,255,0.1);
}

/* Application card styling */
.tl-card--application { border-color: rgba(100,150,255,0.15); }
.tl-milestone:hover .tl-card--application,
.tl-milestone:focus-within .tl-card--application {
    border-color: rgba(100,150,255,0.4);
    box-shadow: 0 4px 20px rgba(100,150,255,0.08);
}

.tl-connector { width: 1px; height: 16px; background: var(--border); flex-shrink: 0; }
.tl-node {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--bg); border: 2px solid var(--border);
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
    flex-shrink: 0; position: relative; z-index: 1;
}
.tl-milestone:hover .tl-node,
.tl-milestone:focus-within .tl-node {
    border-color: var(--accent);
    background: var(--accent-dim);
    box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.35);
}
.tl-milestone:hover .tl-node--application,
.tl-milestone:focus-within .tl-node--application {
    border-color: #6496ff;
    background: rgba(100,150,255,0.15);
    box-shadow: 0 0 10px rgba(100,150,255,0.35);
}
/* Detail panel */
.timeline-detail {
    min-height: 110px; padding: 18px 22px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; margin-top: 12px;
    transition: border-color 0.3s;
    display: flex; align-items: center;
}
.timeline-detail.active {
    border-color: rgba(var(--accent-rgb), 0.2);
    align-items: flex-start; flex-direction: column;
}
.tl-detail-hint { color: var(--text-dim); font-size: 0.78rem; font-family: var(--mono); letter-spacing: 1px; }
.tl-detail-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.tl-detail-method { font-family: var(--display); font-weight: 700; font-size: 1rem; color: var(--text-primary); }
.tl-detail-meta { font-family: var(--mono); font-size: 0.62rem; color: var(--accent); letter-spacing: 0.5px; }
.tl-detail-desc { color: var(--text-secondary); font-size: 0.83rem; line-height: 1.65; margin-bottom: 12px; max-width: 680px; }
.tl-detail-pathogens { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-detail-pathogen {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; background: rgba(255,255,255,0.04);
    border: 1px solid var(--border); border-radius: 20px;
    font-size: 0.72rem; color: var(--text-secondary);
}

/* ========== LOGO STRIP ========== */
.logo-strip {
    padding: 28px 0;
}
.logo-strip-inner {
    max-width: var(--container); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: center; gap: 40px;
    flex-wrap: nowrap;
}
.logo-strip-item {
    opacity: 0.6;
    transition: opacity 0.4s ease;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.85rem; font-weight: 700; letter-spacing: 1.5px;
    text-transform: uppercase; color: #fff; white-space: nowrap;
}
.logo-strip-item:hover { opacity: 1; }
@media (max-width: 768px) {
    .logo-strip-inner { gap: 20px; flex-wrap: wrap; justify-content: center; }
    .logo-strip-item { font-size: 0.7rem; letter-spacing: 1px; }
}

/* ========== TEAM ========== */
#team { background: var(--bg-card); }
.team-grid { display: grid; grid-template-columns: 1fr auto 3fr; gap: 0; margin-top: 48px; align-items: start; }
.team-group-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--text-secondary); margin-bottom: 16px;
}
.team-divider {
    width: 1px; background: var(--border); align-self: stretch; margin: 0 32px;
}
.team-advisors-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.team-card {
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
    overflow: hidden; transition: border-color 0.3s, transform 0.3s;
}
.team-card:hover { border-color: rgba(var(--accent-rgb), 0.25); transform: translateY(-3px); }
.team-photo { width: 100%; aspect-ratio: 1; object-fit: cover; filter: grayscale(30%); transition: filter 0.3s; }
.team-card:hover .team-photo { filter: grayscale(0%); }
.team-info { padding: 18px; }
.team-name { font-family: var(--display); font-weight: 700; font-size: 1rem; color: var(--text-primary); margin-bottom: 3px; }
.team-role { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1px; color: var(--accent); margin-bottom: 10px; }
.team-bio { color: var(--text-secondary); font-size: 0.82rem; line-height: 1.65; }
.team-bio a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.team-bio a:hover { color: var(--text-primary); }

/* ========== CONTACT ========== */
#contact .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact-heading {
    font-family: var(--display); font-weight: 800;
    font-size: clamp(2rem, 4vw, 3.2rem); color: var(--text-primary);
    line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.02em;
}
.contact-sub { color: var(--text-secondary); font-size: 1rem; margin-bottom: 32px; }
.contact-form label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--text-secondary);
    display: block; margin-bottom: 6px;
}
.contact-form input, .contact-form textarea {
    width: 100%; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: 6px;
    padding: 12px 16px; color: var(--text-primary);
    font-family: var(--display); font-size: 0.9rem;
    margin-bottom: 18px; transition: border-color 0.3s; outline: none;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }
.contact-form textarea { resize: vertical; min-height: 110px; }
.form-buttons { display: flex; gap: 10px; }

/* ========== VIRUS CANVAS (shared: nav + footer) ========== */
.nav-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand { display: flex; align-items: center; gap: 8px; }
.virus-canvas { display: block; flex-shrink: 0; }

/* ========== FOOTER ========== */
footer { border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-logo { font-family: var(--display); font-weight: 800; font-size: 1rem; color: var(--text-primary); }
.footer-logo span { color: var(--accent); }
.footer-links { display: flex; gap: 20px; list-style: none; }
.footer-links a {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 1px;
    text-transform: uppercase; color: var(--text-dim); transition: color 0.3s;
}
.footer-links a:hover { color: var(--text-primary); }
.footer-copy { font-size: 0.8rem; color: var(--text-dim); }
.footer-credit {
    width: 100%; text-align: center; padding-top: 20px; margin-top: 20px;
    border-top: 1px solid var(--border);
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 1px;
    color: rgba(255,255,255,0.55); line-height: 1.6;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    #contact .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .team-grid { grid-template-columns: 1fr; gap: 0; }
    .team-divider { width: auto; height: 1px; margin: 32px 0; }
    .team-advisors-row { grid-template-columns: repeat(3, 1fr); }
    .about-layout { gap: 36px; }
    #three-container { height: 420px; }
}
@media (max-width: 900px) {
    /* Stack about layout on tablet/phone */
    .about-layout { grid-template-columns: 1fr; gap: 40px; }
    .about-viz { position: static; } /* un-stick when stacked */
    #three-container { height: 400px; }
    .pipeline-sources { grid-template-columns: repeat(2, 1fr); }
    .team-advisors-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column; position: fixed;
        top: 64px; left: 0; width: 100%;
        background: rgba(19,21,25,0.98); backdrop-filter: blur(20px);
        padding: 28px 24px; gap: 20px; border-bottom: 1px solid var(--border);
    }
    .nav-hamburger { display: flex; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .pub-grid { grid-template-columns: 1fr; }
    .tl-card { width: 130px; } .tl-milestone { margin: 0 10px; }
    .team-advisors-row { grid-template-columns: 1fr; }
    .hero-title { font-size: clamp(2.2rem, 9vw, 3.5rem); }
    .section-padding { padding: 64px 0; }
    #three-container { height: 320px; }
}
@media (max-width: 480px) {
    .about-stats { grid-template-columns: 1fr; }
    .pipeline-sources { grid-template-columns: 1fr; }
}

/* ========== ENHANCED VISUAL DESIGN ========== */

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(var(--accent-rgb), 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(var(--accent-rgb), 0.55); }
html { scrollbar-width: thin; scrollbar-color: rgba(var(--accent-rgb), 0.3) var(--bg); }

/* Text selection & focus */
::selection { background: rgba(var(--accent-rgb), 0.28); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
:focus:not(:focus-visible) { outline: none; }

/* Nav enhancements */
nav.main-nav.scrolled { background: rgba(13,15,18,0.97); border-bottom-color: rgba(var(--accent-rgb), 0.12); }
.nav-links a:not(.nav-cta) { position: relative; }
.nav-links a:not(.nav-cta)::after {
    content: ''; position: absolute; bottom: -3px; left: 0;
    width: 0; height: 1px; background: var(--accent);
    transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:not(.nav-cta):hover::after,
.nav-links a:not(.nav-cta).active::after { width: 100%; }

/* Hero bottom fade */
#hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 220px;
    background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
    pointer-events: none; z-index: 1;
}

/* Scroll hint */
.hero-scroll-hint {
    position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
    z-index: 3; opacity: 0;
    animation: fadeInHint 1s 2.5s forwards, bounceHint 2s 3.5s ease-in-out infinite;
    cursor: pointer; color: rgba(255,255,255,0.35); transition: color 0.3s;
}
.hero-scroll-hint:hover { color: rgba(255,255,255,0.75); }
@keyframes fadeInHint { to { opacity: 1; } }
@keyframes bounceHint {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* 3D container */
#three-container { box-shadow: 0 8px 40px rgba(0,0,0,0.45); }

/* Enhanced card hovers */
.p-card:hover {
    box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.06);
}
.pub-card { transition: border-color 0.3s, transform 0.3s, background 0.3s, box-shadow 0.3s; }
.pub-card:hover { box-shadow: 0 4px 16px rgba(var(--accent-rgb), 0.06); }
.team-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.4); }

/* Team photo scale on hover */
.team-photo { transition: filter 0.4s, transform 0.4s; }
.team-card:hover .team-photo { filter: grayscale(0%); transform: scale(1.02); }

/* Buttons */
.btn-primary { overflow: hidden; position: relative; }
.btn-secondary { overflow: hidden; position: relative; }

/* Pub arrow upgrade */
.pub-arrow { transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), color 0.25s; }
.pub-card:hover .pub-arrow { transform: translateX(6px); color: var(--text-primary); }

/* Form focus glow */
.contact-form input:focus, .contact-form textarea:focus {
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
    background: rgba(255,255,255,0.06);
}
.contact-social { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.contact-social-link {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--text-secondary); font-family: var(--mono); font-size: 0.75rem; transition: color 0.3s;
}
.contact-social-link:hover { color: var(--text-primary); }
.contact-form-col { transition-delay: 0.2s; }

/* Marquee separator */
.marquee-track span::after { opacity: 0.5; }

/* Section tints */
#research { background: linear-gradient(180deg, var(--bg) 0%, rgba(var(--accent-rgb), 0.018) 50%, var(--bg) 100%); }

/* Virus logo spike upgrade */

/* ========== ROADMAP ========== */
#roadmap {
    background: linear-gradient(180deg, var(--bg) 0%, rgba(var(--accent-rgb), 0.012) 50%, var(--bg) 100%);
}
.roadmap-intro {
    max-width: 700px; color: var(--text-secondary);
    margin-bottom: 56px; font-size: 1rem; line-height: 1.8;
}
.roadmap-timeline {
    position: relative;
    display: flex; flex-direction: column; gap: 0;
    padding-left: 32px;
}
.roadmap-timeline::before {
    content: ''; position: absolute; top: 0; bottom: 0; left: 15px;
    width: 1px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dim) 100%);
}
.roadmap-phase {
    position: relative;
    display: flex; align-items: flex-start; gap: 0;
    padding-bottom: 48px;
}
.roadmap-phase:last-child { padding-bottom: 0; }
.roadmap-phase:last-child .roadmap-line { display: none; }
.roadmap-node {
    position: absolute; left: -32px; top: 6px;
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    z-index: 2;
}
.roadmap-node-ring {
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--accent);
    position: relative; z-index: 2;
    box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.3);
}
.roadmap-node-pulse {
    position: absolute; top: 50%; left: 50%;
    width: 26px; height: 26px; border-radius: 50%;
    background: rgba(var(--accent-rgb), 0.06);
    transform: translate(-50%, -50%);
    animation: roadmapPulse 4s ease-in-out infinite;
}
@keyframes roadmapPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.4; }
    50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0; }
}
.roadmap-line { display: none; }

.roadmap-card {
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px; padding: 28px 32px;
    width: 100%;
    transition: border-color 0.4s, transform 0.4s, box-shadow 0.4s;
    position: relative; overflow: hidden;
}
.roadmap-card::before {
    content: ''; position: absolute; top: -60px; right: -60px;
    width: 140px; height: 140px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.04) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none;
}
.roadmap-card:hover {
    border-color: rgba(var(--accent-rgb), 0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(var(--accent-rgb), 0.08);
}
.roadmap-phase-badge {
    display: inline-block;
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--accent);
    background: var(--accent-dim); padding: 3px 10px;
    border-radius: 4px; margin-bottom: 12px;
}
.roadmap-card-title {
    font-family: var(--display); font-weight: 700;
    font-size: 1.15rem; color: var(--text-primary);
    margin-bottom: 10px; line-height: 1.3;
}
.roadmap-card-desc {
    color: var(--text-secondary); font-size: 0.88rem;
    line-height: 1.75; margin-bottom: 16px;
}
.roadmap-card-tags {
    display: flex; flex-wrap: wrap; gap: 6px;
}
.roadmap-tag {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.5px;
    color: var(--text-dim);
}

@media (max-width: 768px) {
    .roadmap-timeline { padding-left: 28px; }
    .roadmap-timeline::before { left: 13px; }
    .roadmap-node { left: -28px; }
    .roadmap-card { padding: 20px 22px; }
}