/* ===== HealthCalc — Global Styles ===== */
:root {
  --primary: #2ecc71;
  --primary-dark: #27ae60;
  --primary-light: #d5f5e3;
  --bg: #f8faf9;
  --white: #fff;
  --text: #1a1a2e;
  --text-light: #5a6270;
  --border: #dde2e8;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --shadow-hover: 0 6px 20px rgba(0,0,0,.10);
  --radius: 12px;
  --max-w: 1100px;
  --focus-ring: 0 0 0 3px rgba(46,204,113,.25);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--primary-dark);text-decoration:none}
a:hover{color:var(--primary);text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:1.3rem;font-weight:700;color:var(--text)}
.logo:hover{text-decoration:none}
.logo:hover .logo-text{color:var(--primary)}
.nav{display:flex;gap:24px}
.nav a{color:var(--text-light);font-size:.95rem;transition:color .2s}
.nav a:hover,.nav a.active{color:var(--primary-dark);text-decoration:none}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,var(--primary-light),var(--white));padding:60px 0 50px;text-align:center}
.hero h1{font-size:2.4rem;margin-bottom:12px;color:var(--text)}
.hero-subtitle{font-size:1.1rem;color:var(--text-light);max-width:640px;margin:0 auto 28px}

/* ===== Buttons ===== */
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:transform .15s,box-shadow .15s,background-color .2s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:var(--white)}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 4px 14px rgba(46,204,113,.35)}
.btn-primary:focus-visible{outline:none;box-shadow:var(--focus-ring)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* ===== Tool Cards ===== */
.tools-section{padding:50px 0}
.tools-section h2{font-size:1.6rem;margin-bottom:28px;text-align:center}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.tool-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .2s,box-shadow .2s,border-color .2s}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-light);text-decoration:none;color:var(--text)}
.tool-icon{font-size:2rem;display:block;margin-bottom:12px}
.tool-card h3{font-size:1.15rem;margin-bottom:8px}
.tool-card p{font-size:.9rem;color:var(--text-light)}

/* ===== Article Cards ===== */
.articles-section{padding:50px 0;background:var(--white)}
.articles-section h2{font-size:1.6rem;margin-bottom:28px;text-align:center}
.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.article-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .2s,box-shadow .2s}
.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);text-decoration:none;color:var(--text)}
.article-tag{display:inline-block;background:var(--primary-light);color:var(--primary-dark);font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:4px;margin-bottom:10px}
.article-card h3{font-size:1.1rem;margin-bottom:8px}
.article-card p{font-size:.88rem;color:var(--text-light);margin-bottom:10px}
.article-arrow{font-size:.85rem;font-weight:600;color:var(--primary-dark)}

/* ===== Features ===== */
.features-section{padding:50px 0;text-align:center}
.features-section h2{font-size:1.6rem;margin-bottom:28px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:28px}
.feature h3{font-size:1rem;margin-bottom:8px}
.feature p{font-size:.88rem;color:var(--text-light)}

/* ===== CTA ===== */
.cta-section{padding:50px 0;text-align:center;background:linear-gradient(135deg,var(--primary-light),var(--white))}
.cta-section h2{font-size:1.5rem;margin-bottom:12px}
.cta-section p{color:var(--text-light);margin-bottom:24px}

/* ===== Footer ===== */
.footer{background:var(--text);color:#bdc3c7;padding:30px 0;text-align:center;font-size:.85rem}
.footer-links{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-bottom:12px}
.footer-links a{color:#bdc3c7;transition:color .2s}
.footer-links a:hover{color:var(--primary);text-decoration:none}
.footer-copy{margin-bottom:4px}
.footer-disclaimer{margin-top:8px;font-size:.8rem;color:#7a8590}

/* ===== Cookie Banner ===== */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:var(--text);color:#ecf0f1;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;z-index:200;font-size:.88rem}
.cookie-banner a{color:var(--primary)}
.cookie-banner button{background:var(--primary);color:#fff;border:none;padding:8px 20px;border-radius:6px;cursor:pointer;font-size:.85rem;transition:background-color .2s}
.cookie-banner button:hover{background:var(--primary-dark)}
.cookie-banner.hidden{display:none}

/* ===== Calculator Page ===== */
.calc-page{padding:40px 0 60px}
.calc-page h1{font-size:1.8rem;margin-bottom:8px}
.calc-page .lead{color:var(--text-light);margin-bottom:28px;font-size:1rem}
.calc-box{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:32px;max-width:600px;margin:0 auto 36px;box-shadow:var(--shadow)}
.calc-box h2{font-size:1.1rem;margin-bottom:20px;text-align:center}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.form-group input,.form-group select{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;transition:border-color .2s,box-shadow .2s}
.form-group input:hover,.form-group select:hover{border-color:#bdc3c7}
.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:var(--focus-ring)}
.form-group input::placeholder{color:#a0a8b0}
.form-group input:invalid:not(:placeholder-shown){border-color:#e74c3c}
.form-hint{font-size:.82rem;color:var(--text-light);margin-top:8px;text-align:center}
.input-hint{font-size:.8rem;color:var(--text-light);display:block;margin-top:4px}
.form-row{display:flex;gap:14px}
.form-row .form-group{flex:1}
.radio-group{display:flex;gap:16px;margin-top:4px}
.radio-group label{display:flex;align-items:center;gap:6px;font-weight:400;cursor:pointer}
.radio-group input[type="radio"]{accent-color:var(--primary);width:16px;height:16px}
.result-box{background:var(--primary-light);border-radius:8px;padding:20px;margin-top:20px;text-align:center;display:none}
.result-box.show{display:block}
.result-value{font-size:2.2rem;font-weight:700;color:var(--primary-dark)}
.result-label{font-size:.9rem;color:var(--text-light);margin-top:4px}
.result-category{font-size:1rem;font-weight:600;margin-top:8px;color:var(--text)}

/* ===== Data Tables ===== */
.data-table{width:100%;border-collapse:collapse;margin:16px 0;border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
.data-table th{background:var(--bg);font-weight:600;font-size:.9rem}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover{background:#fafcfb}

/* ===== Article Page ===== */
.article-page{padding:40px 0 60px}
.article-page h1{font-size:1.8rem;margin-bottom:8px}
.article-meta{color:var(--text-light);font-size:.88rem;margin-bottom:28px}
.article-content{max-width:720px;margin:0 auto}
.article-content h2{font-size:1.3rem;margin:28px 0 12px}
.article-content h3{font-size:1.1rem;margin:20px 0 8px}
.article-content p{margin-bottom:14px}
.article-content ul,.article-content ol{margin-bottom:14px;padding-left:24px}
.article-content li{margin-bottom:6px}
.article-content blockquote{border-left:3px solid var(--primary);padding:12px 20px;background:var(--primary-light);border-radius:0 8px 8px 0;margin:20px 0;font-style:italic}
.article-cta{background:var(--primary-light);border-radius:var(--radius);padding:24px;text-align:center;margin:32px 0}
.article-cta h3{margin-bottom:8px}
.article-cta p{color:var(--text-light)}
.article-cta .btn{margin-top:10px}

/* ===== Legal Pages ===== */
.legal-page{padding:40px 0 60px}
.legal-page h1{font-size:1.6rem;margin-bottom:20px}
.legal-page h2{font-size:1.2rem;margin:24px 0 10px}
.legal-page p,.legal-page ul{margin-bottom:12px;max-width:720px}

/* ===== Responsive ===== */
@media(max-width:768px){
  .hero h1{font-size:1.8rem}
  .tools-grid,.articles-grid,.features-grid{grid-template-columns:1fr}
  .form-row{flex-direction:column;gap:0}
  .nav{gap:14px;font-size:.85rem}
  .cookie-banner{flex-direction:column;text-align:center}
  .data-table{font-size:.9rem}
  .data-table th,.data-table td{padding:10px 12px}
  .calc-box{padding:24px 20px}
  .result-value{font-size:1.8rem}
}

@media(max-width:480px){
  .header .container{height:50px}
  .logo{font-size:1.1rem}
  .nav{gap:12px;font-size:.85rem}
  .hero{padding:40px 0 35px}
  .hero h1{font-size:1.5rem}
  .calc-page h1{font-size:1.5rem}
  .btn{padding:10px 20px;font-size:.95rem}
}

/* ===== Print Styles ===== */
@media print{
  .header,.footer,.cookie-banner,.calc-box,.article-cta{display:none}
  .article-content{max-width:100%}
}

/* ===== Affiliate Section ===== */
.affiliate-section{background:var(--white);padding:50px 0;border-top:1px solid var(--border)}
.affiliate-section h2{font-size:1.5rem;margin-bottom:8px;text-align:center}
.affiliate-section .section-subtitle{color:var(--text-light);text-align:center;font-size:.9rem;margin-bottom:28px}
.affiliate-disclosure{background:#fff8e6;border:1px solid #f0e4b8;border-radius:8px;padding:12px 16px;margin-bottom:24px;font-size:.82rem;color:#8a7a4a;text-align:center}
.affiliate-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.affiliate-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:transform .2s,box-shadow .2s,border-color .2s}
.affiliate-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-light);text-decoration:none;color:var(--text)}
.affiliate-card .product-icon{font-size:2rem;display:block;margin-bottom:10px;text-align:center}
.affiliate-card h3{font-size:1rem;margin-bottom:6px;line-height:1.3}
.affiliate-card p{font-size:.82rem;color:var(--text-light);margin-bottom:10px;line-height:1.5}
.affiliate-card .affiliate-price{font-weight:700;color:var(--primary-dark);font-size:1rem}
.affiliate-card .affiliate-tag{display:inline-block;background:var(--primary-light);color:var(--primary-dark);font-size:.7rem;font-weight:600;padding:2px 8px;border-radius:4px;margin-bottom:8px}