/* ========================================================
   MY SLEEP CALCULATOR – Professional Stylesheet
   AdSense-style aggressive ad optimisation
   Palette: indigo #4a3aff + violet #a16bff + cream #fff8e7 + moon #ffd76b
   ======================================================== */

:root{
  --primary:#4a3aff;
  --primary-2:#a16bff;
  --accent:#ffd76b;
  --bg:#f6f7ff;
  --bg-2:#ffffff;
  --text:#1a1d2e;
  --muted:#5a607a;
  --border:#e7e9f5;
  --shadow: 0 10px 30px rgba(74,58,255,.10);
  --shadow-lg: 0 20px 50px rgba(74,58,255,.18);
  --radius:18px;
  --radius-sm:10px;
  --maxw:1180px;
  --anchor-h-desktop: 110px;
  --anchor-h-mobile: 70px;
  --font-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --font-head:'Poppins',var(--font-body);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--text);
  background:
    radial-gradient(1200px 600px at 90% -10%, #efeaff 0%, transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, #e7ecff 0%, transparent 55%),
    var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  /* leave space for bottom anchor ad */
  padding-bottom:var(--anchor-h-mobile);
}
@media (min-width:721px){ body{ padding-bottom:0 } }

img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ============ SKIP LINK ============ */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:9999}
.skip-link:focus{left:0}

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-size:20px;color:var(--text)}
.logo:hover{text-decoration:none}
.logo-text b{color:var(--primary);font-weight:800}
.logo-text span{color:var(--primary-2);font-weight:700}
.logo-mark{display:inline-flex}
.main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.main-nav a{padding:10px 14px;border-radius:10px;color:var(--text);font-weight:500;font-size:15px}
.main-nav a:hover{background:#eef0ff;text-decoration:none;color:var(--primary)}
.main-nav .btn-link{background:var(--primary);color:#fff}
.main-nav .btn-link:hover{background:var(--primary-2);color:#fff}

.nav-toggle{display:none;background:none;border:0;width:42px;height:42px;cursor:pointer}
.nav-toggle span{display:block;height:3px;width:24px;margin:5px auto;background:var(--text);border-radius:3px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{padding:60px 0 30px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 80% 20%,rgba(161,107,255,.18),transparent 70%),
    radial-gradient(500px 250px at 10% 80%,rgba(74,58,255,.12),transparent 70%);
  z-index:-1;
}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;background:#fff;border:1px solid var(--border);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--primary);box-shadow:var(--shadow)}
.hero h1{font-family:var(--font-head);font-size:clamp(28px,4.6vw,52px);line-height:1.1;margin:14px 0 14px;font-weight:800;letter-spacing:-.5px}
.gradient-text{background:linear-gradient(90deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;color:var(--muted);margin:0 0 18px}
.hero-bullets{list-style:none;padding:0;margin:0;display:grid;gap:6px;font-weight:500}
.hero-bullets li{font-size:15px}

/* ============ CALCULATOR CARD ============ */
.calc-card{background:linear-gradient(180deg,#fff,#fafbff);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow-lg);overflow:hidden}
.calc-tabs{display:flex;background:#f1f3ff;padding:6px;gap:6px;flex-wrap:wrap}
.tab{flex:1;min-width:120px;border:0;background:transparent;padding:12px 8px;border-radius:14px;font-weight:600;cursor:pointer;color:var(--muted);font-size:14px;transition:.2s}
.tab.active{background:#fff;color:var(--primary);box-shadow:0 4px 14px rgba(74,58,255,.15)}
.tab:hover{color:var(--primary)}
.calc-body{padding:28px 26px 32px}
.calc-body label{display:block;font-weight:600;margin-bottom:10px;font-size:15px}
#time-input{width:100%;padding:18px 18px;font-size:28px;font-weight:700;border:2px solid var(--border);border-radius:14px;text-align:center;font-family:var(--font-head);color:var(--text);background:#fff}
#time-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(74,58,255,.15)}
#time-help{display:block;margin-top:8px;color:var(--muted);font-size:13px}
.btn-primary{margin-top:18px;width:100%;padding:16px 20px;border:0;border-radius:14px;cursor:pointer;font-weight:700;font-size:17px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 10px 24px rgba(74,58,255,.35);transition:.2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(74,58,255,.45)}
.btn-primary span{display:inline-block;margin-left:6px;transition:.2s}
.btn-primary:hover span{transform:translateX(4px)}

.result{margin-top:22px}
.result-title{font-weight:700;margin:0 0 10px;font-size:15px;color:var(--muted)}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.result-card{background:#fff;border:1.5px solid var(--border);border-radius:14px;padding:14px 10px;text-align:center;transition:.2s}
.result-card.best{border-color:var(--primary);background:linear-gradient(180deg,#fff,#eef0ff);box-shadow:0 6px 18px rgba(74,58,255,.15)}
.result-card .rc-time{font-family:var(--font-head);font-size:22px;font-weight:800;color:var(--text)}
.result-card .rc-meta{font-size:12px;color:var(--muted);margin-top:4px}
.result-card.best .rc-meta{color:var(--primary);font-weight:700}
.result-note{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}

/* ============ GENERIC SECTIONS ============ */
section{padding:60px 0}
.section-title{font-family:var(--font-head);font-size:clamp(24px,3.4vw,38px);text-align:center;font-weight:800;margin:0 0 10px;letter-spacing:-.3px}
.section-sub{text-align:center;color:var(--muted);max-width:760px;margin:0 auto 36px;font-size:17px}

/* ============ HOW IT WORKS ============ */
.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.how-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;text-align:center;box-shadow:var(--shadow);transition:.25s}
.how-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.how-num{width:46px;height:46px;border-radius:14px;margin:0 auto 14px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;font-family:var(--font-head)}
.how-card h3{margin:0 0 6px;font-family:var(--font-head);font-size:18px}
.how-card p{margin:0;color:var(--muted);font-size:14.5px}

/* ============ TABLES ============ */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.age-table{width:100%;border-collapse:collapse;min-width:560px}
.age-table th,.age-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:15px}
.age-table th{background:#f6f7ff;font-family:var(--font-head);font-weight:700;color:var(--primary)}
.age-table tr:last-child td{border-bottom:0}
.age-table tr:hover td{background:#fafbff}

/* ============ ARTICLE ============ */
.article{padding:60px 0;background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.article-body{max-width:820px;margin:0 auto}
.article-body h2{font-family:var(--font-head);font-size:32px;margin:0 0 16px;letter-spacing:-.3px}
.article-body h3{font-family:var(--font-head);font-size:22px;margin:30px 0 10px;color:var(--primary)}
.article-body p,.article-body li{font-size:16.5px;color:#2a2f48}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin:4px 0}

/* ============ FAQ ============ */
.faq details{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 20px;margin-bottom:12px;box-shadow:0 4px 14px rgba(74,58,255,.05)}
.faq summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--primary);font-weight:300;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:12px 0 0;color:var(--muted)}

/* ============ FOOTER ============ */
.site-footer{background:#0f1226;color:#cbd0ea;padding:60px 0 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:36px}
.site-footer h4{color:#fff;font-family:var(--font-head);font-size:16px;margin:0 0 14px;letter-spacing:.3px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:6px 0}
.site-footer a{color:#cbd0ea}
.site-footer a:hover{color:#fff}
.logo-footer .logo-text b,.logo-footer .logo-text span{color:#fff}
.logo-footer .logo-text{color:#fff}
.footer-bottom{border-top:1px solid #1f2447;padding:18px 0;font-size:14px;color:#9ca3c7;text-align:center}
.footer-bottom p{margin:0}

/* ==========================================================
   ╔══════════════════════════════════════════════╗
   ║      ADSENSE-STYLE AD UNIT STYLES           ║
   ╚══════════════════════════════════════════════╝
   ========================================================== */

/* ===== Generic in-content ad wrapper ===== */
.ad-wrap{display:flex;flex-direction:column;align-items:center;gap:6px;margin:28px auto;padding:14px;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-sm);max-width:780px;min-height:80px}
.ad-label{font-size:10px;text-transform:uppercase;letter-spacing:1.5px;color:#9aa1bd;font-weight:600}
.ad-desktop{display:block}
.ad-mobile{display:none}

/* in-article ad (inside the .article-body) */
.ad-incontent{margin:30px auto;background:#fafbff;border-style:solid;border-color:#eef0ff;max-width:520px}

/* native style (looks like part of content) */
.ad-native{background:linear-gradient(180deg,#fff,#fafbff);border:1px solid var(--border);max-width:360px;box-shadow:var(--shadow)}

/* Close button used by sliding/sticky ads */
.ad-close{
  position:absolute;top:-12px;right:-12px;width:28px;height:28px;border-radius:50%;
  background:#1a1d2e;border:2px solid #fff;color:#fff;font-size:18px;line-height:1;cursor:pointer;
  box-shadow:0 4px 14px rgba(0,0,0,.25);display:flex;align-items:center;justify-content:center;
  font-weight:700;z-index:10;transition:.2s;
}
.ad-close:hover{background:var(--primary);transform:scale(1.1)}

/* ==========================================================
   ★★★  FLOATING / SLIDING SIDE ADS (Desktop)  ★★★
   ========================================================== */
.floating-side{
  position:fixed;top:50%;transform:translateY(-50%);
  z-index:9990;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:10px;box-shadow:0 12px 30px rgba(0,0,0,.18);
  display:flex;flex-direction:column;align-items:center;gap:4px;
  transition:left .55s cubic-bezier(.2,.8,.2,1), right .55s cubic-bezier(.2,.8,.2,1), opacity .4s;
  opacity:0;
}
.floating-side.show{opacity:1}
.floating-side .ad-label{font-size:9px;letter-spacing:1.2px}

.floating-left{left:-220px}                 /* off-screen by default */
.floating-left.show{left:14px}              /* slide IN from left */

.floating-right{right:-220px}               /* off-screen by default */
.floating-right.show{right:14px}            /* slide IN from right */

/* hide floating side ads on small screens — they would block content */
@media (max-width: 1280px){
  .floating-side{display:none !important}
}

/* ==========================================================
   ★★★  INTERSTITIAL / VIGNETTE POPUP  ★★★
   ========================================================== */
.interstitial-backdrop{
  position:fixed;inset:0;background:rgba(15,18,38,.78);
  z-index:10000;display:flex;align-items:center;justify-content:center;
  padding:20px;backdrop-filter:blur(4px);
  animation:fadeIn .3s ease;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.interstitial-card{
  position:relative;background:#fff;border-radius:18px;padding:28px 22px 18px;
  box-shadow:0 30px 80px rgba(0,0,0,.45);
  max-width:340px;width:100%;text-align:center;
  animation:popIn .35s cubic-bezier(.2,.9,.3,1.3);
}
@keyframes popIn{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.inter-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;font-size:22px}
.inter-close:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.inter-body{display:flex;justify-content:center;margin:10px 0 8px;min-height:250px}
.inter-skip{font-size:12px;color:var(--muted);margin-top:6px}

/* ==========================================================
   ★★★  BOTTOM STICKY ANCHOR (AdSense-style)  ★★★
   ========================================================== */
.anchor-ad{
  position:fixed;left:0;right:0;bottom:0;
  z-index:9995;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--border);
  box-shadow:0 -6px 24px rgba(0,0,0,.10);
  display:flex;align-items:center;justify-content:center;
  padding:8px 50px;
  transform:translateY(110%);
  transition:transform .45s cubic-bezier(.2,.9,.2,1);
}
.anchor-ad.show{transform:translateY(0)}
.anchor-ad .ad-label{position:absolute;top:2px;left:12px;font-size:9px;color:#9aa1bd}
.anchor-close{position:absolute;top:-14px;right:12px;width:30px;height:30px;font-size:18px}
.anchor-inner{display:flex;justify-content:center;align-items:center;width:100%}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .how-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
}

@media (max-width: 720px){
  section{padding:44px 0}
  .hero{padding:36px 0 20px}
  .main-nav ul{position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 16px 18px;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(0,0,0,.06);display:none}
  .main-nav.open ul{display:flex}
  .main-nav a{display:block;padding:12px 14px}
  .nav-toggle{display:block}
  .how-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .ad-desktop{display:none}
  .ad-mobile{display:block}
  .result-grid{grid-template-columns:repeat(2,1fr)}
  .calc-body{padding:22px 18px 26px}
  #time-input{font-size:22px;padding:14px}
  .tab{font-size:13px;padding:10px 6px;min-width:0}

  /* anchor ad mobile compact */
  .anchor-ad{padding:6px 40px}
  .anchor-close{top:-12px;right:8px;width:26px;height:26px;font-size:16px}

  /* interstitial – smaller padding on mobile */
  .interstitial-card{padding:24px 14px 14px;max-width:320px}
  .inter-close{top:-12px;right:-12px;width:30px;height:30px;font-size:20px}
}

@media (max-width: 480px){
  .footer-grid{grid-template-columns:1fr}
  .how-grid{grid-template-columns:1fr}
  .logo-text{font-size:18px}
  .result-grid{grid-template-columns:1fr 1fr}
}

/* ============ PRINT ============ */
@media print{
  .site-header,.site-footer,.ad-wrap,.anchor-ad,.floating-side,.interstitial-backdrop,#container-0eeda2853a7f84201b1a7871b0ce9401{display:none!important}
  body{padding-bottom:0}
}