/* Lung Restore Blog – Shared Styles */
@import url('https://fonts.googleapis.com/css2?family=Bitter:ital,wght@0,400;0,700;0,900;1,400&family=Lato:wght@300;400;700;900&display=swap');

:root {
  --blue:#1a4a7c;
  --blue-mid:#2563a8;
  --blue-light:#3b82d4;
  --sky:#e8f2fb;
  --teal:#0e8c7a;
  --teal-light:#12b09a;
  --gold:#e8a020;
  --white:#ffffff;
  --cream:#f7f9fc;
  --dark:#181c24;
  --gray:#5a6475;
  --border:#d4dff0;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Lato',sans-serif;background:var(--cream);color:var(--dark);line-height:1.8;}

/* NAV */
header{background:linear-gradient(90deg,var(--blue) 0%,var(--blue-mid) 100%);padding:0 20px;}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:14px 0;}
.logo{font-family:'Bitter',serif;font-size:22px;font-weight:900;color:#fff;text-decoration:none;letter-spacing:-0.5px;}
.logo span{color:#7dd3f8;}
nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:13px;font-weight:700;padding:6px 13px;border:1px solid rgba(255,255,255,.2);border-radius:20px;transition:all .2s;white-space:nowrap;}
nav a:hover,nav a.active{background:var(--teal);border-color:var(--teal);color:#fff;}

/* HERO */
.hero{background:linear-gradient(135deg,#0b2a50 0%,#1a4a7c 45%,#1e6fa8 100%);color:#fff;padding:64px 20px 56px;text-align:center;position:relative;overflow:hidden;}
.hero::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 30%,rgba(61,130,212,.25) 0%,transparent 60%);}
.hero-content{position:relative;z-index:1;max-width:820px;margin:0 auto;}
.badge{display:inline-block;background:var(--teal);color:#fff;font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;padding:5px 18px;border-radius:20px;margin-bottom:20px;}
.hero h1{font-family:'Bitter',serif;font-size:clamp(28px,5.5vw,54px);font-weight:900;line-height:1.1;margin-bottom:18px;}
.hero h1 em{color:#7dd3f8;font-style:normal;}
.hero .meta{font-size:14px;opacity:.75;margin-top:10px;}
.hero .stars{color:var(--gold);font-size:22px;margin:10px 0;}

/* CONTAINER */
.container{max-width:880px;margin:0 auto;padding:48px 20px;}

/* TOC */
.toc{background:#fff;border:1px solid var(--border);border-left:4px solid var(--blue-mid);border-radius:8px;padding:22px 26px;margin-bottom:40px;}
.toc h3{font-family:'Bitter',serif;color:var(--blue);margin-bottom:12px;font-size:17px;}
.toc ol{padding-left:20px;}
.toc li{margin:5px 0;}
.toc a{color:var(--blue-mid);text-decoration:none;font-size:15px;}
.toc a:hover{text-decoration:underline;}

/* HEADINGS */
h2{font-family:'Bitter',serif;font-size:clamp(21px,4vw,32px);color:var(--blue);margin:40px 0 14px;border-bottom:2px solid var(--border);padding-bottom:9px;}
h3{font-family:'Bitter',serif;font-size:20px;color:var(--dark);margin:24px 0 8px;}
p{margin-bottom:16px;font-size:16px;color:#334;}

/* HIGHLIGHT BOX */
.highlight-box{background:var(--sky);border:1px solid var(--border);border-left:4px solid var(--blue-mid);border-radius:8px;padding:22px 26px;margin:28px 0;}
.highlight-box strong{color:var(--blue);}

/* CTA BUTTON */
.cta-btn{display:block;background:linear-gradient(135deg,var(--teal),var(--teal-light));color:#fff;text-decoration:none;text-align:center;padding:17px 32px;border-radius:8px;font-size:17px;font-weight:700;margin:30px 0;box-shadow:0 4px 18px rgba(14,140,122,.3);transition:transform .2s,box-shadow .2s;}
.cta-btn:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(14,140,122,.45);}

/* INTERNAL LINKS */
.internal-links{background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px 26px;margin:40px 0;}
.internal-links h3{color:var(--blue);margin-bottom:12px;font-size:17px;}
.internal-links a{display:block;color:var(--blue-mid);text-decoration:none;padding:6px 0;border-bottom:1px solid var(--border);font-size:15px;}
.internal-links a:last-child{border:none;}
.internal-links a:hover{color:var(--teal);}

/* REVIEW CARDS */
.review-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px 24px;margin:16px 0;}
.review-card .stars{color:var(--gold);font-size:16px;}
.review-card .reviewer{font-weight:700;color:var(--blue);font-size:13px;margin-top:8px;}

/* PROS CONS */
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0;}
.pros{background:#edfdf7;border:1px solid #86efcc;border-radius:10px;padding:20px;}
.cons{background:#fff5f5;border:1px solid #fca5a5;border-radius:10px;padding:20px;}
.pros h4{color:#065f46;margin-bottom:10px;font-size:15px;}
.cons h4{color:#991b1b;margin-bottom:10px;font-size:15px;}
.pros li,.cons li{list-style:none;font-size:14px;margin:6px 0;padding-left:20px;position:relative;}
.pros li::before{content:"✓";position:absolute;left:0;color:#065f46;font-weight:900;}
.cons li::before{content:"✗";position:absolute;left:0;color:#991b1b;font-weight:900;}

/* FOOTER */
footer{background:var(--dark);color:#8a93a6;text-align:center;padding:28px 20px;font-size:13px;margin-top:60px;}
footer a{color:var(--gold);text-decoration:none;}
.disclaimer{background:#eef2f8;border-top:1px solid var(--border);padding:22px 20px;text-align:center;font-size:12px;color:#7a8499;line-height:1.7;}

@media(max-width:580px){.pros-cons{grid-template-columns:1fr;}.nav-inner{flex-direction:column;}}