:root{--bg:#060e1c;--surface:#0b1929;--surface2:#101f35;--border:#1b3052;--cyan:#00c8ff;--cyan-dim:rgba(0,200,255,0.07);--cyan-mid:rgba(0,200,255,0.25);--white:#eef4ff;--muted:#6d8aaa;--success:#00e5a0;--warn:#ffc444;--danger:#ff4e6a;--orange:#ff8c42;--purple:#7c6fff;--ff-d:'Space Grotesk',sans-serif;--ff-b:'Inter',sans-serif;--ff-m:'JetBrains Mono',monospace;--r:10px;--r-lg:18px;--r-xl:26px;--t:all 0.3s cubic-bezier(0.4,0,0.2,1)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--white);font-family:var(--ff-b);font-size:15px;line-height:1.6;min-height:100vh}
a{color:inherit;text-decoration:none}

/* TOPBAR */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 32px;height:60px;background:rgba(6,14,28,0.92);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.tb-logo{font-family:var(--ff-d);font-weight:800;font-size:1.2rem}
.tb-logo .x{color:var(--cyan)}
.tb-logo .ai{background:linear-gradient(135deg,var(--cyan),var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tb-center{display:flex;align-items:center;gap:10px}
.tb-badge{font-family:var(--ff-m);font-size:0.62rem;background:var(--cyan-dim);border:1px solid var(--cyan-mid);color:var(--cyan);padding:4px 12px;border-radius:100px;letter-spacing:0.08em;text-transform:uppercase}
.tb-offline{font-family:var(--ff-m);font-size:0.62rem;background:rgba(0,229,160,0.08);border:1px solid rgba(0,229,160,0.25);color:var(--success);padding:4px 12px;border-radius:100px}
.tb-back{font-size:0.82rem;color:var(--muted);transition:color 0.2s}
.tb-back:hover{color:var(--white)}

/* HERO */
.demo-hero{padding:40px 32px 24px;max-width:1180px;margin:0 auto;text-align:center}
.hero-icon{font-size:3rem;margin-bottom:12px;display:block}
.demo-hero h1{font-family:var(--ff-d);font-size:clamp(1.7rem,3.5vw,2.6rem);font-weight:800;margin-bottom:10px;line-height:1.15}
.grad{background:linear-gradient(135deg,var(--cyan),var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.demo-hero p{color:var(--muted);max-width:600px;margin:0 auto 20px;font-size:0.93rem;line-height:1.75}
.demo-instruction{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-m);font-size:0.7rem;color:var(--cyan);background:var(--cyan-dim);border:1px solid var(--cyan-mid);padding:7px 18px;border-radius:100px;letter-spacing:0.05em}

/* SLIDE SELECTOR */
.slide-section{max-width:1180px;margin:0 auto;padding:0 32px 24px}
.section-label{font-family:var(--ff-m);font-size:0.65rem;text-transform:uppercase;letter-spacing:0.14em;color:var(--muted);margin-bottom:14px;text-align:center}
.slide-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

.slide-card{background:var(--surface);border:2px solid var(--border);border-radius:var(--r-xl);overflow:hidden;cursor:pointer;transition:var(--t)}
.slide-card:hover{border-color:rgba(0,200,255,0.3);transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,0.5)}
.slide-card.active{border-color:var(--cyan-mid);transform:translateY(-3px);box-shadow:0 16px 50px rgba(0,200,255,0.15)}

.slide-preview{position:relative;background:#000;height:180px;overflow:hidden}
.slide-preview canvas{width:100%;height:100%;display:block;object-fit:cover}
.slide-overlay{position:absolute;bottom:10px;left:10px}
.slide-type-badge{font-family:var(--ff-m);font-size:0.62rem;background:rgba(6,14,28,0.85);border:1px solid var(--border);color:var(--muted);padding:3px 10px;border-radius:100px;letter-spacing:0.06em}
.slide-info{padding:16px 18px}
.slide-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:10px}
.slide-name{font-family:var(--ff-d);font-size:0.92rem;font-weight:700;color:var(--white)}
.slide-meta{font-size:0.72rem;color:var(--muted);margin-top:2px;font-family:var(--ff-m)}
.verdict-badge{font-family:var(--ff-m);font-size:0.6rem;font-weight:700;padding:4px 10px;border-radius:100px;letter-spacing:0.08em;text-transform:uppercase;flex-shrink:0}
.vb-malignant{background:rgba(255,78,106,0.15);color:var(--danger);border:1px solid rgba(255,78,106,0.3)}
.vb-benign{background:rgba(0,229,160,0.1);color:var(--success);border:1px solid rgba(0,229,160,0.25)}
.slide-tags{display:flex;flex-wrap:wrap;gap:5px}
.stag{font-size:0.71rem;background:var(--surface2);border:1px solid var(--border);color:var(--muted);padding:3px 9px;border-radius:100px}

/* RUN BUTTON */
.run-wrap{max-width:1180px;margin:0 auto;padding:0 32px 32px;text-align:center}
.run-btn{background:var(--cyan);color:#050d1a;font-family:var(--ff-d);font-weight:800;font-size:1rem;padding:16px 48px;border:none;border-radius:var(--r-lg);cursor:pointer;transition:var(--t);display:inline-flex;align-items:center;gap:12px}
.run-btn:hover{background:#33d4ff;transform:translateY(-2px);box-shadow:0 10px 36px rgba(0,200,255,0.4)}
.run-btn:disabled{opacity:0.35;cursor:not-allowed;transform:none;box-shadow:none}
.run-hint{font-size:0.78rem;color:var(--muted);margin-top:10px;font-family:var(--ff-m)}

/* RESULTS */
.results-section{max-width:1180px;margin:0 auto;padding:0 32px 80px;display:none}
.results-section.visible{display:block;animation:fadeUp 0.5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* VIEWER LAYOUT */
.viewer-layout{display:grid;grid-template-columns:1fr 400px;gap:24px;margin-bottom:24px;align-items:start}

/* SLIDE VIEWER */
.viewer-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden}
.viewer-toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface2);border-bottom:1px solid var(--border)}
.vt-label{font-family:var(--ff-m);font-size:0.72rem;color:var(--muted)}
.vt-right{display:flex;gap:6px}
.vt-btn{font-family:var(--ff-m);font-size:0.65rem;padding:5px 12px;border-radius:var(--r);border:1px solid var(--border);color:var(--muted);cursor:pointer;transition:var(--t);background:var(--bg)}
.vt-btn.active,.vt-btn:hover{border-color:var(--cyan-mid);color:var(--cyan);background:var(--cyan-dim)}
.viewer-canvas-wrap{position:relative;background:#000;height:420px;overflow:hidden}
.viewer-canvas-wrap canvas{display:block;width:100%;height:100%;object-fit:cover}
.viewer-zoom{position:absolute;bottom:12px;left:12px;display:flex;flex-direction:column;gap:4px}
.zoom-info{font-family:var(--ff-m);font-size:0.62rem;color:rgba(255,255,255,0.6);background:rgba(0,0,0,0.6);padding:3px 8px;border-radius:4px}
.zoom-scale{display:flex;align-items:center;gap:6px}
.scale-bar{width:60px;height:3px;background:rgba(255,255,255,0.7);border-radius:1px}
.zoom-scale span{font-family:var(--ff-m);font-size:0.58rem;color:rgba(255,255,255,0.6)}
.roi-markers{position:absolute;inset:0;pointer-events:none}
.roi-marker{position:absolute;transform:translate(-50%,-50%);cursor:pointer;pointer-events:all;animation:roiAppear 0.4s ease forwards;opacity:0}
@keyframes roiAppear{from{opacity:0;transform:translate(-50%,-50%) scale(0.5)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
.roi-ring{border-radius:50%;border:2px solid;animation:roiPulse 2.5s ease-in-out infinite}
@keyframes roiPulse{0%,100%{box-shadow:0 0 0 0 currentColor}50%{box-shadow:0 0 0 6px transparent}}
.roi-ring.roi-red{border-color:var(--danger);color:var(--danger)}
.roi-ring.roi-amber{border-color:var(--warn);color:var(--warn)}
.roi-ring.roi-green{border-color:var(--success);color:var(--success)}
.roi-ring.roi-blue{border-color:var(--cyan);color:var(--cyan)}
.roi-num{position:absolute;top:-6px;right:-6px;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--ff-m);font-size:0.55rem;font-weight:700;background:var(--bg);border:1px solid currentColor}

.viewer-legend{display:flex;gap:20px;padding:12px 16px;border-top:1px solid var(--border);flex-wrap:wrap}
.legend-item{display:flex;align-items:center;gap:6px;font-size:0.73rem;color:var(--muted)}
.legend-dot{width:10px;height:10px;border-radius:50%}
.ld-red{background:var(--danger)}
.ld-amber{background:var(--warn)}
.ld-green{background:var(--success)}
.ld-blue{background:var(--cyan)}

/* AI REPORT PANEL */
.report-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:22px;display:flex;flex-direction:column;gap:16px;height:fit-content}
.report-header{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--border)}
.report-title{font-family:var(--ff-m);font-size:0.7rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--muted);flex:1}
.report-badge{font-family:var(--ff-m);font-size:0.62rem;font-weight:700;padding:4px 10px;border-radius:100px;letter-spacing:0.06em}
.ai-pulse{width:8px;height:8px;background:var(--cyan);border-radius:50%;animation:aiPulse 2s infinite;flex-shrink:0}
.ai-pulse-sm{width:6px;height:6px;background:var(--cyan);border-radius:50%;animation:aiPulse 2s infinite;flex-shrink:0}
@keyframes aiPulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(0,200,255,0.4)}70%{opacity:0.7;box-shadow:0 0 0 8px rgba(0,200,255,0)}}

/* Verdict card */
.verdict-card{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.vc-label{font-family:var(--ff-m);font-size:0.62rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--muted);margin-bottom:4px}
.vc-value{font-family:var(--ff-d);font-size:1.3rem;font-weight:800;margin-bottom:4px;line-height:1.1}
.vc-sub{font-size:0.78rem;color:var(--muted);line-height:1.4}
.confidence-ring{position:relative;width:80px;height:80px;flex-shrink:0}
.confidence-ring svg{width:100%;height:100%}
.conf-num{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:var(--ff-d);font-size:0.9rem;font-weight:800}
.conf-label{font-size:0.65rem;color:var(--muted);text-align:center;margin-top:4px;font-family:var(--ff-m)}

/* Grade row */
.grade-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.grade-item{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);padding:12px;text-align:center}
.gi-label{font-family:var(--ff-m);font-size:0.6rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--muted);margin-bottom:6px}
.gi-val{font-family:var(--ff-d);font-size:1rem;font-weight:700;color:var(--white)}
.gi-sub{font-size:0.65rem;color:var(--muted);margin-top:2px}

/* Findings */
.block-title{font-family:var(--ff-m);font-size:0.62rem;text-transform:uppercase;letter-spacing:0.12em;color:var(--muted);margin-bottom:10px}
.finding-item{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.finding-item:last-child{border-bottom:none;padding-bottom:0}
.fi-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;margin-top:6px}
.fi-text{font-size:0.82rem;color:var(--muted);line-height:1.5}
.fi-text strong{color:var(--white)}

/* ROI grid */
.roi-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.roi-item{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);padding:10px 12px;display:flex;align-items:center;gap:10px}
.ri-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.ri-info{}
.ri-name{font-size:0.78rem;font-weight:600;color:var(--white)}
.ri-meta{font-size:0.68rem;color:var(--muted);font-family:var(--ff-m)}

/* Narrative */
.narrative-block{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px}
.narrative-text{font-size:0.84rem;color:var(--muted);line-height:1.85;font-style:italic;border-left:2px solid rgba(0,200,255,0.25);padding-left:14px}
.narrative-text span{color:var(--white);font-style:normal;font-weight:600}

/* Second opinion banner */
.second-opinion-banner{background:linear-gradient(135deg,rgba(0,200,255,0.06),rgba(108,111,255,0.06));border:1px solid rgba(0,200,255,0.2);border-radius:var(--r-lg);padding:14px 16px;display:flex;align-items:center;gap:14px}
.sop-icon{font-size:1.5rem;flex-shrink:0}
.sop-title{font-family:var(--ff-d);font-size:0.88rem;font-weight:700;color:var(--white);margin-bottom:2px}
.sop-sub{font-size:0.78rem;color:var(--muted);line-height:1.5}

/* Metrics row */
.metrics-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.metric-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:24px;text-align:center;transition:var(--t)}
.metric-card:hover{border-color:var(--cyan-mid);transform:translateY(-2px)}
.mc-icon{font-size:1.6rem;margin-bottom:8px}
.mc-val{font-family:var(--ff-d);font-size:1.8rem;font-weight:800;color:var(--cyan);margin-bottom:4px;line-height:1}
.mc-label{font-size:0.82rem;color:var(--white);font-weight:600;margin-bottom:4px}
.mc-compare{font-size:0.72rem;color:var(--muted);font-family:var(--ff-m)}

/* Disclaimer */
.demo-disclaimer{background:rgba(108,111,255,0.05);border:1px solid rgba(108,111,255,0.18);border-radius:var(--r-lg);padding:14px 20px}
.demo-disclaimer p{font-size:0.74rem;color:var(--muted);line-height:1.6}
.demo-disclaimer strong{color:var(--white)}

@media(max-width:1100px){.viewer-layout{grid-template-columns:1fr}}
@media(max-width:900px){.slide-cards{grid-template-columns:1fr}.metrics-row{grid-template-columns:repeat(2,1fr)}.topbar,.demo-hero,.slide-section,.run-wrap,.results-section{padding-left:18px;padding-right:18px}}
@media(max-width:600px){.grade-row{grid-template-columns:1fr 1fr}.roi-grid{grid-template-columns:1fr}.metrics-row{grid-template-columns:1fr 1fr}.viewer-canvas-wrap{height:280px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}