/* Echo Kardiogramma — Design 5.0 "Aurora Clinic" (overlay; matnlar o'zgarmaydi) */
:root{
  --bg-dark:#030612; --bg-stage:#080d1f;
  --bg-card:linear-gradient(145deg,rgba(18,28,58,.78),rgba(10,16,38,.62));
  --bg-card-border:rgba(120,200,255,.16);
  --cyan:#22e4f5; --violet:#8b7bff; --crimson:#ff4d7d; --green:#34d399; --amber:#fbbf24;
  --text-muted:#9fb0cc;
  --font-heading:'Outfit','Inter',sans-serif;
}
body::before{background:radial-gradient(circle,rgba(34,228,245,.2),transparent 65%);animation:drift 14s ease-in-out infinite alternate}
body::after{background:radial-gradient(circle,rgba(139,123,255,.2),transparent 65%);animation:drift 18s ease-in-out infinite alternate-reverse}
@keyframes drift{to{transform:translate(6vw,4vh) scale(1.15)}}

/* Top bar & dock */
.top-bar,.bottom-dock{background:rgba(6,10,26,.72);backdrop-filter:blur(18px);border-color:rgba(120,200,255,.12)}
.brand-title{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:3px}
.brand-icon{background:linear-gradient(135deg,var(--crimson),#ff8fab);box-shadow:0 0 22px var(--crimson-glow);animation:beat 1.2s ease-in-out infinite}
@keyframes beat{0%,100%{transform:scale(1)}15%{transform:scale(1.14)}30%{transform:scale(1)}45%{transform:scale(1.08)}}
.author-tag{background:linear-gradient(135deg,rgba(34,228,245,.18),rgba(139,123,255,.2));border:1px solid rgba(34,228,245,.4);color:#fff;border-radius:999px;padding:3px 14px;font-weight:600;letter-spacing:.5px}
.btn{border-radius:10px;border:1px solid rgba(120,200,255,.2);background:rgba(255,255,255,.04);transition:all .2s}
.btn:hover{background:rgba(34,228,245,.12);border-color:var(--cyan);transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--cyan),#5aa9ff);border:none}
.progress-bar{background:linear-gradient(90deg,var(--cyan),var(--violet),var(--crimson));box-shadow:0 0 14px var(--cyan-glow)}
.slide-counter{letter-spacing:3px;color:var(--cyan)}

/* Slide stage */
.slide{
  background:
    radial-gradient(900px 420px at 100% 0%,rgba(139,123,255,.16),transparent 60%),
    radial-gradient(800px 400px at 0% 100%,rgba(34,228,245,.12),transparent 60%),
    linear-gradient(160deg,#0b1128,#070b1b);
  border:1px solid rgba(120,200,255,.18);border-radius:24px;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.07);
}
.slide::before{content:'';position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--violet),var(--crimson))}
.slide::after{content:'';position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);background-size:44px 44px}
.slide>*{position:relative;z-index:1}
.slide.active .slide-header,.slide.active .slide-body,.slide.active .hero-slide-content{animation:rise .6s cubic-bezier(.2,.8,.2,1) both}
.slide.active .slide-body{animation-delay:.1s}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* Header */
.slide-header{padding-bottom:12px;border-bottom:1px solid rgba(120,200,255,.12)}
.slide-badge{display:inline-block;align-self:flex-start;padding:4px 12px;border-radius:999px;font-size:.68rem;
  background:linear-gradient(135deg,rgba(34,228,245,.14),rgba(139,123,255,.14));border:1px solid rgba(34,228,245,.35);color:var(--cyan)}
.slide-title{background:linear-gradient(120deg,#fff 30%,#a5f3fc 65%,var(--violet));-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}

/* Cards */
.glass-card{position:relative;border-radius:16px;border:1px solid var(--bg-card-border);
  box-shadow:0 10px 30px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);overflow:hidden}
.glass-card::before{content:'';position:absolute;left:0;top:14%;bottom:14%;width:3px;border-radius:0 4px 4px 0;background:linear-gradient(var(--cyan),var(--violet))}
.glass-card.card-accent-crimson{border-color:rgba(255,77,125,.3);background:linear-gradient(145deg,rgba(60,16,40,.5),rgba(12,16,38,.65))}
.glass-card.card-accent-crimson::before{background:linear-gradient(var(--crimson),#ff9a5a)}
.glass-card:hover{border-color:rgba(34,228,245,.5);box-shadow:0 16px 40px rgba(34,228,245,.15);transform:translateY(-3px)}
.card-title{font-family:var(--font-heading);letter-spacing:.2px}
.icon-box,.card-icon{border-radius:12px;background:linear-gradient(135deg,rgba(34,228,245,.2),rgba(139,123,255,.2));border:1px solid rgba(34,228,245,.35)}
.step-num-pill{font-family:var(--font-heading);font-weight:800;border-radius:999px;background:rgba(34,228,245,.1);border:1px solid var(--cyan);color:var(--cyan)}
.formula-tag{border-radius:8px;background:rgba(34,228,245,.12);border:1px solid rgba(34,228,245,.3);color:#b9f7ff}
.metric-box{border-radius:12px;background:linear-gradient(135deg,rgba(34,228,245,.1),rgba(139,123,255,.08))}
.metric-val{font-family:var(--font-heading);font-weight:800}
.info-banner{border-radius:14px;background:linear-gradient(100deg,rgba(34,228,245,.12),rgba(139,123,255,.1));border:1px solid rgba(34,228,245,.28)}
.info-banner-crimson{background:linear-gradient(100deg,rgba(255,77,125,.14),rgba(255,154,90,.08));border-color:rgba(255,77,125,.35)}
.chip{border-radius:999px;background:rgba(255,255,255,.04);transition:all .2s}
.chip:hover{transform:translateY(-2px);background:rgba(34,228,245,.12)}
.check-icon{border-radius:50%;background:rgba(52,211,153,.15)}
.feature-item{transition:transform .2s}.feature-item:hover{transform:translateX(4px)}

/* Images */
.img-frame-box{border-radius:18px;border:1px solid rgba(34,228,245,.35);
  box-shadow:0 0 0 5px rgba(34,228,245,.05),0 18px 44px rgba(0,0,0,.55),0 0 36px rgba(139,123,255,.18)}
.real-img-card{transition:transform 6s ease}
.slide.active .real-img-card{transform:scale(1.05)}
.img-frame-box::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,transparent 55%,rgba(3,6,18,.65))}
.img-caption-badge{z-index:2;border-radius:12px;background:rgba(5,9,24,.78);border-color:rgba(34,228,245,.35)}
.img-caption-badge strong{color:#fff;background:linear-gradient(135deg,var(--cyan),var(--violet));padding:2px 10px;border-radius:999px;color:#04101c;font-size:.72rem}

/* Cover */
.hero-title{font-family:var(--font-heading);font-weight:900;letter-spacing:-1px;
  background:linear-gradient(120deg,#fff 25%,var(--cyan) 60%,var(--violet));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.meta-pill{border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(34,228,245,.3)}
.meta-pill strong{color:var(--cyan)}
.hero-img{border-radius:22px;box-shadow:0 0 60px rgba(34,228,245,.3),0 0 120px rgba(139,123,255,.2);animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-10px)}}
.stat-item{border-radius:14px;background:linear-gradient(145deg,rgba(34,228,245,.1),rgba(139,123,255,.08));border:1px solid rgba(34,228,245,.25)}
.stat-num{font-family:var(--font-heading);font-weight:800;background:linear-gradient(90deg,var(--cyan),#a5b4fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}

/* Table */
.dense-table{border-collapse:separate;border-spacing:0;border-radius:14px;overflow:hidden;border:1px solid rgba(34,228,245,.2)}
.dense-table th{background:linear-gradient(90deg,rgba(34,228,245,.2),rgba(139,123,255,.18));color:#fff;letter-spacing:.5px}
.dense-table tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.dense-table tbody tr:hover{background:rgba(34,228,245,.08)}

/* Simulators & timeline */
.sim-box{border-radius:18px;background:linear-gradient(150deg,rgba(14,22,50,.85),rgba(8,12,30,.8));border:1px solid rgba(34,228,245,.25);box-shadow:0 14px 40px rgba(0,0,0,.4)}
.sim-slider{accent-color:var(--cyan)}
.sim-val{color:var(--cyan);font-weight:700}
.timeline-step-row{border-radius:12px;transition:all .25s}
.timeline-step-row.active,.timeline-step-row:hover{background:linear-gradient(90deg,rgba(34,228,245,.14),transparent);border-color:var(--cyan)}

/* KaTeX */
.katex{color:#e6fbff;font-size:1.05em}

/* ===== Fixed 1280x720 stage, scaled to fit (fullscreen looks identical) ===== */
.slides-viewport{padding:0;overflow:hidden}
.slide{
  width:1280px;height:720px;max-width:none;max-height:none;aspect-ratio:auto;
  left:50%;top:50%;
  transform:translate(-50%,-50%) scale(calc(var(--s,1) * .97));
  transform-origin:center center;
}
.slide.active{transform:translate(-50%,-50%) scale(var(--s,1))}


@media print{
  .slide{left:auto!important;top:auto!important;width:100%!important;transform:none!important}
}

/* ===== No dead space: center content, keep cards compact, enlarge text on sparse slides ===== */
.col-half,.col-full{justify-content:center!important;gap:14px}
.slide-body[style*="column"]{justify-content:center!important;gap:14px}
.col-half>.glass-card,.col-half>.info-banner{margin-top:0!important}
.glass-card{justify-content:center}
.slide-body .grid-2,.slide-body .grid-3,.slide-body .grid-4{gap:14px}

/* slide 2 */
.slide[data-slide="2"] .glass-card{padding:22px 24px;gap:12px}
.slide[data-slide="2"] .card-title{font-size:1.2rem}
.slide[data-slide="2"] .glass-card .slide-subtitle{font-size:1rem}
/* slide 3 */
.slide[data-slide="3"] .glass-card{padding:20px 22px}
.slide[data-slide="3"] .glass-card p{font-size:.98rem!important;line-height:1.5}
.slide[data-slide="3"] .card-title{font-size:1.1rem}
/* slide 7 */
.slide[data-slide="7"] .glass-card{padding:24px 22px;gap:10px}
.slide[data-slide="7"] .card-title{font-size:1.15rem}
.slide[data-slide="7"] .glass-card p{font-size:1rem!important;line-height:1.55}
/* slide 13 */
.slide[data-slide="13"] .glass-card{padding:18px 20px}
.slide[data-slide="13"] .card-title{font-size:1.05rem!important}
.slide[data-slide="13"] .grid-2 .glass-card p{font-size:.92rem!important;line-height:1.5}
/* slide 17 (closing) */
.slide[data-slide="17"] .slide-header{border-bottom:none;justify-content:center;margin-bottom:6px}
.slide[data-slide="17"] .slide-badge{align-self:center}
.slide[data-slide="17"] .glass-card{padding:28px 24px;gap:12px}
.slide[data-slide="17"] .glass-card::before{display:none}
.slide[data-slide="17"] .icon-box{width:56px;height:56px;margin-bottom:8px!important}
.slide[data-slide="17"] .glass-card h4{font-size:1.3rem!important}
.slide[data-slide="17"] .glass-card p{font-size:1rem!important;line-height:1.55}
.slide[data-slide="17"] .info-banner{font-size:1.05rem;padding:14px 20px}

/* ===== Fill pass: larger readable text so slides feel full ===== */
.slide-body .glass-card{padding:20px 24px;gap:10px}
.slide-body .glass-card p,.slide-body .feature-item{font-size:1.02rem!important;line-height:1.55}
.slide-body .card-title{font-size:1.15rem!important}
.slide-body .chip{font-size:.92rem;padding:7px 14px}
.slide-body .info-banner{font-size:1rem;padding:14px 20px}
.slide-body .step-title-text{font-size:1.05rem}
.slide-body .step-desc-text{font-size:.9rem}
.timeline-pipeline{gap:10px}.timeline-step-row{padding:12px 14px}
.slide-body .metric-box{padding:10px 14px}
.slide-body .sim-label,.slide-body .sim-val{font-size:1rem}

/* slide 4 (dense) stays a bit tighter */
.slide[data-slide="4"] .glass-card{padding:14px 18px}
.slide[data-slide="4"] .glass-card p{font-size:.92rem!important}
.slide[data-slide="4"] .card-title{font-size:1.02rem!important}
.slide[data-slide="4"] .dense-table th,.slide[data-slide="4"] .dense-table td{padding:9px 12px;font-size:.92rem}
/* slide 9 box rows */
.slide[data-slide="9"] .glass-card div[style*="justify-content:space-between"]{font-size:1rem!important;padding:9px 12px!important}
/* slide 13 keep compact cards readable */
.slide[data-slide="13"] .grid-2 .glass-card p{font-size:.95rem!important}
.slide[data-slide="13"] .grid-2 .card-title{font-size:1.05rem!important}
/* slide 16 references: no tall empty cards */
.slide[data-slide="16"] .glass-card{height:auto!important;padding:26px 28px!important}
.slide[data-slide="16"] ol{font-size:1.02rem!important;line-height:1.7!important}
.slide[data-slide="16"] .card-title{font-size:1.25rem!important}
/* slide 14 / 15 */
.slide[data-slide="14"] .feature-item,.slide[data-slide="15"] .feature-item{font-size:1rem!important}
.sim-box{padding:20px 24px}

/* ===== Final fill pass for sparse slides ===== */
.slide[data-slide="2"] .col-full.grid-3{flex:0 1 400px}
.slide[data-slide="2"] .glass-card{padding:30px 28px;gap:14px;justify-content:center}
.slide[data-slide="2"] .card-title{font-size:1.45rem!important}
.slide[data-slide="2"] .glass-card .slide-subtitle{font-size:1.12rem;line-height:1.6}
.slide[data-slide="2"] .metric-val{font-size:1.5rem}
.slide[data-slide="2"] .info-banner{font-size:1.1rem;padding:18px 24px;margin-top:22px!important}

.slide[data-slide="7"] .col-full.grid-4{flex:0 1 380px}
.slide[data-slide="7"] .glass-card{padding:30px 24px;gap:14px;justify-content:center}
.slide[data-slide="7"] .card-title{font-size:1.3rem!important}
.slide[data-slide="7"] .glass-card p{font-size:1.12rem!important;line-height:1.6}
.slide[data-slide="7"] .info-banner{font-size:1.1rem;padding:18px 24px;margin-top:22px!important}

.slide[data-slide="9"] .glass-card p,.slide[data-slide="11"] .glass-card p,.slide[data-slide="11"] .feature-item,.slide[data-slide="12"] .glass-card p,.slide[data-slide="12"] .feature-item,.slide[data-slide="10"] .feature-item{font-size:1.12rem!important;line-height:1.6}
.slide[data-slide="9"] .card-title,.slide[data-slide="10"] .card-title,.slide[data-slide="11"] .card-title,.slide[data-slide="12"] .card-title{font-size:1.3rem!important}
.slide[data-slide="9"] .glass-card,.slide[data-slide="10"] .glass-card,.slide[data-slide="11"] .glass-card,.slide[data-slide="12"] .glass-card{padding:24px 26px}
.slide[data-slide="9"] .glass-card div[style*="justify-content:space-between"]{font-size:1.1rem!important;padding:12px 14px!important}
.slide[data-slide="10"] .chip,.slide[data-slide="11"] .metric-val{font-size:1.05rem}
.slide[data-slide="14"] .glass-card p,.slide[data-slide="15"] .glass-card p{font-size:1.1rem!important}
.slide[data-slide="14"] .feature-item,.slide[data-slide="15"] .feature-item{font-size:1.1rem!important}
.slide[data-slide="14"] .glass-card,.slide[data-slide="15"] .glass-card{padding:24px 26px}
.slide[data-slide="14"] .chip{font-size:1rem}

.slide[data-slide="16"] .slide-body{align-items:center}
.slide[data-slide="16"] .glass-card{padding:34px 34px!important}
.slide[data-slide="16"] ol{font-size:1.2rem!important;line-height:1.75!important}
.slide[data-slide="16"] .card-title{font-size:1.5rem!important;margin-bottom:14px!important}

.slide[data-slide="17"] .slide-header{margin-top:30px;margin-bottom:10px}
.slide[data-slide="17"] .hero-title{font-size:4rem!important}
.slide[data-slide="17"] .hero-sub{font-size:1.25rem!important;line-height:1.6}
.slide[data-slide="17"] .col-full.grid-3{flex:0 1 270px}
.slide[data-slide="17"] .glass-card{padding:34px 26px;justify-content:center}
.slide[data-slide="17"] .glass-card h4{font-size:1.45rem!important}
.slide[data-slide="17"] .glass-card p{font-size:1.1rem!important}
.slide[data-slide="17"] .icon-box{width:64px;height:64px}
.slide[data-slide="17"] .info-banner{font-size:1.15rem;padding:18px 24px;margin-top:24px!important}
.slide[data-slide="13"] .grid-2 .glass-card{padding:22px 22px}

/* sim boxes: center content, no empty bottoms */
.slide[data-slide="5"] .sim-box,.slide[data-slide="14"] .sim-box,.slide[data-slide="15"] .sim-box{justify-content:center;gap:20px}
.slide[data-slide="5"] .sim-box canvas{flex:1}
.slide[data-slide="14"] .heart-svg-box{transform:scale(1.35)}
.slide[data-slide="14"] .cardiac-sim-wrap{gap:28px;align-items:center;justify-content:center}
.slide[data-slide="14"] #sv-result{font-size:1.4rem!important}
.slide[data-slide="14"] #ef-result{font-size:2.6rem!important}
.slide[data-slide="14"] #ef-status-badge{font-size:.95rem!important;padding:6px 14px!important}
.slide[data-slide="15"] #bernoulli-result{font-size:2.8rem!important}