:root{--deep-ocean:#020b14;--abyss-blue:#031a2e;--sonar-cyan:#2ee6ff;--deep-teal:#0aa6a6;--biolum-green:#39ffb6;--fog-blue:#5b8cff;--text-primary:#d6f6ff;--text-secondary:#7fbfcc;--glow-cyan:0 0 24px #2ee6ff59;--glow-green:0 0 18px #39ffb64d;--halo-fog:0 0 60px #5b8cff2e;--ring-thickness:1px;--font-stack:"Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--mono-stack:"JetBrains Mono", ui-monospace, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--deep-ocean);max-width:100vw;color:var(--text-primary);font-family:var(--font-stack);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:.01em;overflow-x:hidden}body{background:radial-gradient(at 20% -10%,#2ee6ff1a,#0000 55%),radial-gradient(at 80% 110%,#39ffb614,#0000 60%),linear-gradient(#010810 0%,#020b14 40%,#010610 100%);min-height:100vh;position:relative}body:before{content:"";pointer-events:none;mix-blend-mode:screen;z-index:0;background:repeating-linear-gradient(0deg,#2ee6ff05 0 1px,#0000 1px 4px),repeating-linear-gradient(90deg,#2ee6ff05 0 1px,#0000 1px 4px);position:fixed;inset:0}a{color:inherit;text-decoration:none}h1,h2,h3,h4{letter-spacing:.02em;color:var(--text-primary);font-weight:500}p{color:var(--text-secondary);line-height:1.7}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}::selection{color:var(--text-primary);background:#2ee6ff4d}.sonar-rings{pointer-events:none;position:absolute;inset:0;overflow:hidden}.sonar-rings span{border:1px solid #2ee6ff66;border-radius:50%;width:80px;height:80px;animation:6s linear infinite sonarPulse;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)scale(0)}.sonar-rings span:nth-child(2){animation-delay:1.5s}.sonar-rings span:nth-child(3){animation-delay:3s}.sonar-rings span:nth-child(4){animation-delay:4.5s}@keyframes sonarPulse{0%{opacity:.7;border-color:#2ee6ff99;transform:translate(-50%,-50%)scale(0)}70%{opacity:.15}to{opacity:0;border-color:#39ffb600;transform:translate(-50%,-50%)scale(10)}}.plankton{pointer-events:none;position:absolute;inset:0;overflow:hidden}.plankton i{filter:blur(.6px);background:#2ee6ff99;border-radius:50%;width:3px;height:3px;animation:linear infinite drift;position:absolute;box-shadow:0 0 8px #2ee6ffb3}@keyframes drift{0%{opacity:0;transform:translate(0)}10%{opacity:.8}90%{opacity:.6}to{opacity:0;transform:translate(40px,-120vh)}}.scan-sweep{pointer-events:none;mix-blend-mode:screen;background:conic-gradient(#0000 0deg,#2ee6ff2e 8deg,#0000 30deg 360deg);border-radius:50%;animation:7s linear infinite scan;position:absolute;inset:0}@keyframes scan{to{transform:rotate(360deg)}}.depth-fog{pointer-events:none;filter:blur(40px);background:radial-gradient(at 30% 40%,#5b8cff29,#0000 60%),radial-gradient(at 70% 60%,#0aa6a624,#0000 65%);animation:18s ease-in-out infinite alternate fogDrift;position:absolute;inset:-10%}@keyframes fogDrift{0%{transform:translate(0)scale(1)}to{transform:translate(-4%,3%)scale(1.05)}}.sonar-btn{color:var(--text-primary);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);letter-spacing:.08em;text-transform:uppercase;box-shadow:var(--glow-cyan);background:#031a2e99;border:1px solid #2ee6ff80;border-radius:999px;align-items:center;gap:.6rem;padding:.85rem 1.6rem;font-size:.85rem;transition:all .4s;display:inline-flex;position:relative}.sonar-btn:before{content:"";pointer-events:none;border:1px solid #2ee6ff40;border-radius:999px;animation:2.6s ease-in-out infinite btnPulse;position:absolute;inset:-4px}@keyframes btnPulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:.1;transform:scale(1.08)}}.sonar-btn:hover{border-color:var(--biolum-green);color:var(--biolum-green);box-shadow:0 0 30px #39ffb68c}.sonar-btn--ghost{box-shadow:none;background:0 0;border-color:#7fbfcc66}.sonar-btn--ghost:before{display:none}.eyebrow{font-family:var(--mono-stack);letter-spacing:.4em;text-transform:uppercase;color:var(--sonar-cyan);opacity:.8;font-size:.72rem}.section-title{margin:.6rem 0 1rem;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:400}.section-title em{color:var(--biolum-green);text-shadow:var(--glow-green);font-style:normal}.container{z-index:1;width:min(1180px,92vw);margin:0 auto;position:relative}@media (max-width:480px){.container{width:94vw}.sonar-btn{letter-spacing:.06em;padding:.75rem 1.2rem;font-size:.78rem}.divider-pulse{margin:2.8rem 0}}.divider-pulse{background:linear-gradient(90deg,#0000,#2ee6ff80,#0000);height:1px;margin:4rem 0;position:relative}.divider-pulse:after{content:"";background:var(--sonar-cyan);width:8px;height:8px;box-shadow:var(--glow-cyan);border-radius:50%;animation:2.6s ease-in-out infinite pulse;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes pulse{0%,to{opacity:1;transform:translate(-50%,-50%)scale(1)}50%{opacity:.3;transform:translate(-50%,-50%)scale(1.6)}}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#010810}::-webkit-scrollbar-thumb{background:linear-gradient(180deg, var(--deep-teal), var(--sonar-cyan));border-radius:10px}