/*HealthCheck — Liquid Glass Light Theme*/
:root {
  --bg-grad: linear-gradient(135deg, #e0f2fe 0%, #f0fdf4 40%, #ede9fe 100%);
  --glass:        rgba(255,255,255,0.55);
  --glass-strong: rgba(255,255,255,0.80);
  --glass-border: rgba(255,255,255,0.75);
  --glass-shadow: 0 8px 32px rgba(14,165,233,0.10), 0 2px 8px rgba(0,0,0,0.06);
  --glass-shadow-lg: 0 16px 48px rgba(14,165,233,0.15), 0 4px 16px rgba(0,0,0,0.08);
  --c1:  #0EA5E9;
  --c2:  #10B981;
  --c3:  #EF4444;
  --c4:  #F59E0B;
  --c5:  #8B5CF6;
  --c6:  #F97316;
  --c7:  #EC4899;
  --txt:  #0F172A;
  --txt2: #475569;
  --txt3: #94A3B8;
  --radius: 18px;
  --radius-lg: 24px;
  --transition: all .25s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background: var(--bg-grad);
  min-height:100vh;
  color:var(--txt);
  font-family:'Inter',-apple-system,sans-serif;
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(14,165,233,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 90% 80%, rgba(16,185,129,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(139,92,246,0.10) 0%, transparent 70%),
    linear-gradient(135deg,#e0f2fe 0%,#f0fdf4 40%,#ede9fe 100%);
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Scrollbar */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:rgba(255,255,255,0.3)}
::-webkit-scrollbar-thumb{background:rgba(14,165,233,0.35);border-radius:99px}

/*Glass Mixin (utility)*/
.glass{
  background:var(--glass);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
}

/* NAVBAR */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:999;
  padding:0 32px;height:64px;
  display:flex;align-items:center;
  background:rgba(255,255,255,0.60);
  backdrop-filter:blur(24px) saturate(200%);
  -webkit-backdrop-filter:blur(24px) saturate(200%);
  border-bottom:1.5px solid rgba(255,255,255,0.80);
  box-shadow:0 2px 16px rgba(14,165,233,0.08);
  transition:var(--transition);
}
.navbar.scrolled{background:rgba(255,255,255,0.80);}
.nav-container{max-width:1200px;width:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;font-size:1.2rem;font-weight:800;color:var(--txt)}
.logo-icon{color:var(--c3)}
.logo-accent{color:var(--c1)}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none}
.nav-link{color:var(--txt2);text-decoration:none;padding:6px 14px;border-radius:10px;font-size:.88rem;font-weight:500;transition:var(--transition)}
.nav-link:hover{color:var(--c1);background:rgba(14,165,233,0.08)}
.nav-cta{
  background:linear-gradient(135deg,var(--c1),var(--c5));
  color:white;text-decoration:none;
  padding:8px 20px;border-radius:99px;
  font-size:.88rem;font-weight:700;
  box-shadow:0 4px 16px rgba(14,165,233,0.30);
  transition:var(--transition);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(14,165,233,0.45)}

/* HERO */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:100px 24px 60px;position:relative;overflow:hidden;text-align:center;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:blobPulse 8s ease-in-out infinite}
.blob-1{width:560px;height:560px;background:radial-gradient(circle,rgba(14,165,233,0.45),transparent);top:-180px;left:-120px}
.blob-2{width:480px;height:480px;background:radial-gradient(circle,rgba(16,185,129,0.40),transparent);bottom:-120px;right:-80px;animation-delay:3s}
.blob-3{width:380px;height:380px;background:radial-gradient(circle,rgba(139,92,246,0.35),transparent);top:40%;left:50%;transform:translate(-50%,-50%);animation-delay:6s}
@keyframes blobPulse{0%,100%{opacity:.45;transform:scale(1)}50%{opacity:.65;transform:scale(1.12)}}
.blob-3{animation:blobPulse3 8s ease-in-out infinite;animation-delay:6s}
@keyframes blobPulse3{0%,100%{opacity:.35;transform:translate(-50%,-50%) scale(1)}50%{opacity:.55;transform:translate(-50%,-50%) scale(1.12)}}
.grid-overlay{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,165,233,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,165,233,0.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-content{position:relative;z-index:1;max-width:800px;margin:0 auto}
.hero-badge{
  display:inline-block;
  background:rgba(14,165,233,0.12);
  border:1.5px solid rgba(14,165,233,0.35);
  color:var(--c1);padding:6px 18px;border-radius:99px;
  font-size:.8rem;font-weight:700;letter-spacing:.05em;margin-bottom:24px;
  backdrop-filter:blur(8px);
  animation:fadeUp .6s ease both;
}
.hero-title{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:900;line-height:1.1;margin-bottom:20px;color:var(--txt);animation:fadeUp .6s .1s ease both}
.gradient-text{
  background:linear-gradient(135deg,var(--c1),var(--c5),var(--c2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-subtitle{font-size:1.1rem;color:var(--txt2);max-width:600px;margin:0 auto 36px;line-height:1.7;animation:fadeUp .6s .2s ease both}
.hero-subtitle strong{color:var(--c1)}

.hero-stats{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:36px;animation:fadeUp .6s .3s ease both}
.stat-card{
  background:var(--glass-strong);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  border-radius:var(--radius);padding:18px 24px;min-width:130px;
  transition:var(--transition);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-lg)}
.stat-number{font-size:1.8rem;font-weight:800;background:linear-gradient(135deg,var(--c1),var(--c2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.78rem;color:var(--txt2);margin-top:2px}

.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;animation:fadeUp .6s .4s ease both}
.btn-primary{
  padding:14px 30px;border-radius:99px;font-size:.95rem;font-weight:700;
  text-decoration:none;cursor:pointer;border:none;
  background:linear-gradient(135deg,var(--c1),var(--c5));color:white;
  box-shadow:0 4px 24px rgba(14,165,233,0.35);
  transition:var(--transition);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(14,165,233,0.50)}
.btn-secondary{
  padding:14px 30px;border-radius:99px;font-size:.95rem;font-weight:700;
  text-decoration:none;cursor:pointer;
  background:var(--glass-strong);color:var(--txt);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  backdrop-filter:blur(12px);
  transition:var(--transition);
}
.btn-secondary:hover{transform:translateY(-2px);border-color:var(--c1);color:var(--c1)}

.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:1}
.scroll-dot{width:6px;height:28px;border-radius:99px;background:linear-gradient(to bottom,var(--c1),transparent);animation:scrollBounce 2s ease-in-out infinite}
@keyframes scrollBounce{0%,100%{transform:translateY(0);opacity:1}50%{transform:translateY(8px);opacity:.4}}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

/* SECTION BASE */
.section{padding:96px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-badge{
  display:inline-block;
  background:rgba(14,165,233,0.10);border:1.5px solid rgba(14,165,233,0.25);
  color:var(--c1);padding:5px 16px;border-radius:99px;
  font-size:.8rem;font-weight:700;margin-bottom:14px;
}
.section-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin-bottom:12px;color:var(--txt)}
.section-subtitle{color:var(--txt2);font-size:1rem;max-width:560px;margin:0 auto}

/* DASHBOARD */
.dashboard{background:transparent}
.metric-pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.pill{
  display:flex;align-items:center;gap:8px;
  padding:7px 18px;border-radius:99px;font-size:.82rem;font-weight:600;
  border:1.5px solid;
  backdrop-filter:blur(12px);
}
.pill-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.pill-blue {color:var(--c1);border-color:rgba(14,165,233,0.35);background:rgba(14,165,233,0.10)}
.pill-blue  .pill-dot{background:var(--c1)}
.pill-green{color:var(--c2);border-color:rgba(16,185,129,0.35);background:rgba(16,185,129,0.10)}
.pill-green .pill-dot{background:var(--c2)}
.pill-amber{color:#D97706;border-color:rgba(245,158,11,0.35);background:rgba(245,158,11,0.10)}
.pill-amber .pill-dot{background:var(--c4)}
.pill-red  {color:var(--c3);border-color:rgba(239,68,68,0.35);background:rgba(239,68,68,0.10)}
.pill-red   .pill-dot{background:var(--c3)}

.charts-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.chart-card{
  background:var(--glass);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  border-radius:var(--radius-lg);padding:28px;
  transition:var(--transition);
}
.chart-card:hover{transform:translateY(-3px);box-shadow:var(--glass-shadow-lg);border-color:rgba(14,165,233,0.40)}
.chart-wide{grid-column:span 2}
.chart-full{grid-column:span 2}
.chart-header{margin-bottom:24px}
.chart-title{font-size:1.05rem;font-weight:700;margin-bottom:4px;color:var(--txt)}
.chart-desc{font-size:.82rem;color:var(--txt2)}
.chart-wrap{position:relative;height:260px}
.chart-wrap-tall{height:300px}

.prevalence-donuts{display:flex;align-items:center;justify-content:space-around;flex-wrap:wrap;gap:24px}
.donut-wrap{display:flex;align-items:center;gap:20px}
.donut-label{display:flex;flex-direction:column;gap:4px}
.donut-pct{font-size:2rem;font-weight:800;line-height:1}
.donut-name{font-size:.85rem;color:var(--txt2)}

/* CALCULATOR */
.calculator-section{background:transparent}
.calc-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start}
.calc-form-card{
  background:var(--glass);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  border-radius:var(--radius-lg);padding:32px;
  display:flex;flex-direction:column;gap:28px;
}
.form-section-title{font-size:.9rem;font-weight:700;color:var(--c1);margin-bottom:18px;padding-bottom:8px;border-bottom:1.5px solid rgba(14,165,233,0.15)}
.form-row.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group label{font-size:.82rem;font-weight:600;color:var(--txt2)}

/* Sliders */
.slider-wrap{display:flex;align-items:center;gap:12px}
.slider{-webkit-appearance:none;appearance:none;flex:1;height:5px;border-radius:99px;background:rgba(14,165,233,0.15);outline:none;cursor:pointer;transition:var(--transition)}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c5));cursor:pointer;box-shadow:0 2px 8px rgba(14,165,233,0.40);transition:var(--transition)}
.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}
.slider-value{font-size:.82rem;font-weight:700;color:var(--c1);min-width:72px;text-align:right;white-space:nowrap}
.slider-hint{display:flex;justify-content:space-between;font-size:.7rem;color:var(--txt3);margin-top:2px}

.bmi-preview{
  background:rgba(16,185,129,0.08);border:1.5px solid rgba(16,185,129,0.25);
  border-radius:var(--radius);padding:10px 16px;
  display:flex;align-items:center;gap:12px;font-size:.85rem;margin-top:4px;
}
.bmi-label{color:var(--txt2)}
.bmi-value{font-size:1.2rem;font-weight:800;color:var(--c1)}
.bmi-cat{font-size:.8rem;font-weight:600;padding:2px 10px;border-radius:99px;background:rgba(16,185,129,0.12);color:var(--c2)}

.toggle-group{display:flex;gap:8px}
.toggle-btn{
  flex:1;padding:8px;border-radius:10px;
  border:1.5px solid rgba(14,165,233,0.20);
  background:rgba(255,255,255,0.50);color:var(--txt2);
  font-size:.82rem;font-weight:600;cursor:pointer;transition:var(--transition);
  backdrop-filter:blur(8px);
}
.toggle-btn:hover{border-color:var(--c1);color:var(--c1)}
.toggle-btn.active{background:rgba(14,165,233,0.15);border-color:var(--c1);color:var(--c1)}
.toggle-btn.toggle-danger.active{background:rgba(239,68,68,0.12);border-color:var(--c3);color:var(--c3)}

.btn-calculate{
  width:100%;padding:16px;
  background:linear-gradient(135deg,var(--c1),var(--c5));
  color:white;font-size:1rem;font-weight:700;
  border:none;border-radius:99px;cursor:pointer;transition:var(--transition);
  box-shadow:0 4px 20px rgba(14,165,233,0.35);
}
.btn-calculate:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(14,165,233,0.50)}

/* Result Panel */
.result-panel{
  background:var(--glass);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  border-radius:var(--radius-lg);padding:32px;
  position:sticky;top:84px;min-height:400px;
  display:flex;align-items:center;justify-content:center;
}
.result-placeholder{text-align:center;color:var(--txt2);display:flex;flex-direction:column;align-items:center;gap:12px}
.placeholder-icon{font-size:2.5rem}
.result-placeholder p{font-size:.9rem;line-height:1.6}
.result-placeholder strong{color:var(--c1)}
.result-content{width:100%;display:flex;flex-direction:column;gap:20px}

.gauge-wrap{position:relative;display:flex;justify-content:center}
.gauge-center{position:absolute;bottom:0;left:50%;transform:translateX(-50%);text-align:center}
.gauge-score{font-size:2.4rem;font-weight:900;line-height:1;background:linear-gradient(135deg,var(--c1),var(--c5));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.gauge-label{font-size:.65rem;font-weight:700;color:var(--txt2);letter-spacing:.1em}

.risk-badge{display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--radius);border:1.5px solid;backdrop-filter:blur(8px)}
.risk-icon{font-size:1.6rem}
.risk-level{font-size:1.1rem;font-weight:700}
.risk-desc{font-size:.82rem;color:var(--txt2);margin-top:2px}

.breakdown-grid{display:flex;flex-direction:column;gap:8px}
.breakdown-item{display:grid;grid-template-columns:90px 1fr 36px;align-items:center;gap:10px}
.bk-label{font-size:.78rem;color:var(--txt2);font-weight:500}
.bk-bar-wrap{height:6px;background:rgba(14,165,233,0.12);border-radius:99px;overflow:hidden}
.bk-bar{height:100%;border-radius:99px;transition:width .8s cubic-bezier(.4,0,.2,1);width:0}
.bk-score{font-size:.78rem;font-weight:700;color:var(--txt2);text-align:right}

.recommendations{background:rgba(16,185,129,0.07);border:1.5px solid rgba(16,185,129,0.20);border-radius:var(--radius);padding:18px}
.rec-title{font-size:.9rem;font-weight:700;color:var(--c2);margin-bottom:12px}
.rec-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.rec-list li{font-size:.82rem;color:var(--txt2);line-height:1.5;padding-left:20px;position:relative}
.rec-list li::before{content:'→';position:absolute;left:0;color:var(--c1);font-weight:700}

.btn-reset{
  width:100%;padding:10px;
  background:rgba(255,255,255,0.60);color:var(--txt2);
  border:1.5px solid rgba(14,165,233,0.20);border-radius:99px;
  font-size:.85rem;font-weight:600;cursor:pointer;transition:var(--transition);
  backdrop-filter:blur(8px);
}
.btn-reset:hover{background:rgba(255,255,255,0.85);color:var(--c1);border-color:var(--c1)}

/* ABOUT */
.about-section{background:transparent}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.about-card{
  background:var(--glass);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1.5px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  border-radius:var(--radius-lg);padding:28px;transition:var(--transition);
}
.about-card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-lg);border-color:rgba(14,165,233,0.40)}
.about-icon{font-size:1.8rem;margin-bottom:12px}
.about-card h3{font-size:.95rem;font-weight:700;margin-bottom:8px;color:var(--c1)}
.about-card p{font-size:.83rem;color:var(--txt2);line-height:1.65}
.about-card strong{color:var(--txt)}

/* FOOTER */
.footer{
  background:rgba(255,255,255,0.60);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border-top:1.5px solid var(--glass-border);
  padding:48px 0;
}
.footer-content{text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}
.footer-brand{display:flex;align-items:center;gap:8px;font-size:1.15rem;font-weight:800;color:var(--txt)}
.footer-tagline{font-size:.88rem;color:var(--txt2);font-style:italic}
.footer-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.tag{background:rgba(14,165,233,0.10);border:1.5px solid rgba(14,165,233,0.25);color:var(--c1);padding:3px 14px;border-radius:99px;font-size:.75rem;font-weight:600}
.footer-copy{font-size:.78rem;color:var(--txt3);margin-top:4px}

/* RESPONSIVE */
@media(max-width:900px){
  .charts-grid{grid-template-columns:1fr}
  .chart-wide,.chart-full{grid-column:span 1}
  .calc-layout{grid-template-columns:1fr}
  .result-panel{position:static}
  .about-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .navbar{padding:0 16px}
  .nav-links li:not(:last-child){display:none}
  .hero-stats{gap:10px}
  .stat-card{min-width:120px;padding:14px 16px}
  .about-grid{grid-template-columns:1fr}
  .form-row.two-col{grid-template-columns:1fr}
  .prevalence-donuts{flex-direction:column;align-items:center}
}