/* ═══════════════════════════════════════════════════════
   StaminaCalculator.com — Global Stylesheet
   Mobile-first · Dark-mode · Performance-optimized
═══════════════════════════════════════════════════════ */

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}

/* ── DESIGN TOKENS ── */
:root{
  /* Brand */
  --blue:#2563eb;--blue-d:#1d4ed8;--blue-l:#eff6ff;--blue-m:#dbeafe;
  --teal:#0891b2;--teal-l:#ecfeff;
  --green:#16a34a;--green-l:#f0fdf4;
  --orange:#ea580c;--orange-l:#fff7ed;
  --red:#dc2626;--red-l:#fef2f2;
  --purple:#7c3aed;--purple-l:#f5f3ff;
  --amber:#d97706;--amber-l:#fffbeb;

  /* Neutrals */
  --white:#ffffff;
  --off:#f8f9fc;
  --off2:#f1f4f9;
  --gray1:#e8ecf2;
  --gray2:#c8d0de;
  --gray3:#8b95a8;
  --gray4:#4a5568;
  --gray5:#1a202c;

  /* Typography */
  --font:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;

  /* Shadows */
  --shadow-xs:0 1px 2px rgba(0,0,0,.06);
  --shadow-sm:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
  --shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -2px rgba(0,0,0,.05);
  --shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);

  /* Radii */
  --r:8px;--r2:12px;--r3:16px;--r4:20px;--rpill:9999px;

  /* Transitions */
  --t-fast:0.15s ease;
  --t-med:0.25s ease;
}

/* ── BASE ── */
body{
  font-family:var(--font);
  background:var(--off);
  color:var(--gray5);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none;transition:color var(--t-fast)}
a:hover{color:var(--blue-d)}
h1,h2,h3,h4,h5{line-height:1.25;font-weight:700;color:var(--gray5)}
p{color:var(--gray4);line-height:1.7}
button{font-family:var(--font);cursor:pointer}

/* ── LAYOUT ── */
.container{max-width:1180px;margin:0 auto;padding:0 1.25rem}
.wrap{max-width:780px;margin:0 auto}

/* ── SKIP NAV (a11y) ── */
.skip-nav{position:absolute;top:-40px;left:0;background:var(--blue);color:#fff;padding:8px 16px;border-radius:0 0 var(--r) 0;z-index:9999;font-weight:700;transition:top .2s}
.skip-nav:focus{top:0}

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
#site-nav{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--gray1);
  position:sticky;top:0;z-index:200;
  box-shadow:var(--shadow-xs);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:.85rem 1.25rem;max-width:1180px;margin:0 auto;gap:1rem;
}
.logo{
  display:flex;align-items:center;gap:9px;
  font-weight:800;font-size:1.15rem;color:var(--gray5);
  white-space:nowrap;
}
.logo-icon{
  width:32px;height:32px;
  background:linear-gradient(135deg,var(--blue),var(--teal));
  border-radius:9px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1rem;flex-shrink:0;
}
.nav-links{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-links a{
  font-size:13px;font-weight:600;color:var(--gray4);
  padding:6px 11px;border-radius:var(--rpill);
  transition:all var(--t-fast);white-space:nowrap;
}
.nav-links a:hover{background:var(--off);color:var(--blue)}
.nav-links a.active{background:var(--blue-l);color:var(--blue)}
.nav-cta{
  background:var(--blue);color:#fff;font-weight:700;font-size:13px;
  padding:8px 18px;border-radius:var(--rpill);border:none;
  transition:background var(--t-fast);white-space:nowrap;
  text-decoration:none;display:inline-block;
}
.nav-cta:hover{background:var(--blue-d);color:#fff}
.hamburger{
  display:none;background:none;border:1px solid var(--gray1);
  border-radius:var(--r);padding:7px 10px;font-size:18px;
  color:var(--gray4);line-height:1;
}
.mobile-menu{
  display:none;background:var(--white);
  border-top:1px solid var(--gray1);padding:1rem 1.25rem;
  flex-direction:column;gap:2px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  display:block;padding:10px 12px;font-weight:600;color:var(--gray4);
  border-radius:var(--r);transition:all var(--t-fast);
}
.mobile-menu a:hover{background:var(--off);color:var(--blue)}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero{
  background:linear-gradient(155deg,#0f2a4a 0%,#1a3d6e 45%,#0c5872 100%);
  color:#fff;padding:4rem 1.25rem 3.5rem;text-align:center;
  position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content{position:relative;z-index:1}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.9);padding:5px 14px;border-radius:var(--rpill);
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;
  margin-bottom:1.25rem;
}
.hero h1{
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;
  margin-bottom:1rem;color:#fff;letter-spacing:-.5px;line-height:1.15;
}
.hero h1 .accent{color:#67e8f9}
.hero-sub{
  font-size:1.05rem;color:rgba(255,255,255,.75);
  max-width:520px;margin:0 auto 2rem;line-height:1.75;
}
.hero-btns{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap;margin-bottom:2.5rem}
.btn-primary{
  background:#fff;color:var(--blue-d);font-weight:700;font-size:.95rem;
  padding:12px 28px;border-radius:var(--rpill);border:none;
  box-shadow:0 4px 14px rgba(0,0,0,.2);transition:all var(--t-med);
  display:inline-flex;align-items:center;gap:6px;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.25);color:var(--blue-d)}
.btn-outline{
  background:transparent;color:#fff;font-weight:600;font-size:.95rem;
  padding:12px 28px;border-radius:var(--rpill);border:1.5px solid rgba(255,255,255,.4);
  transition:all var(--t-med);display:inline-flex;align-items:center;gap:6px;
}
.btn-outline:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-trust{
  display:flex;gap:1.75rem;justify-content:center;flex-wrap:wrap;
}
.trust-item{
  display:flex;align-items:center;gap:6px;
  font-size:13px;color:rgba(255,255,255,.65);
}
.trust-item strong{color:rgba(255,255,255,.95)}
.trust-dot{width:4px;height:4px;background:rgba(255,255,255,.3);border-radius:50%;display:none}

/* ══════════════════════════════════════════
   CALC HUB (grid of calculator cards)
══════════════════════════════════════════ */
.calc-hub{padding:3rem 1.25rem}
.section-label{
  font-size:11px;font-weight:700;text-transform:uppercase;
  letter-spacing:1.5px;color:var(--blue);margin-bottom:.4rem;
}
.section-title{font-size:clamp(1.4rem,3vw,1.9rem);margin-bottom:.4rem}
.section-sub{font-size:.9rem;color:var(--gray3);margin-bottom:1.75rem}
.calc-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:.875rem;
}
.calc-card{
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.25rem;
  cursor:pointer;transition:all var(--t-med);position:relative;
  text-decoration:none;display:block;
}
.calc-card:hover{
  border-color:var(--blue);box-shadow:var(--shadow-md);
  transform:translateY(-3px);
}
.calc-card.featured{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue-m)}
.calc-card-icon{
  width:42px;height:42px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;margin-bottom:.85rem;
}
.calc-card h3{font-size:.9rem;font-weight:700;margin-bottom:3px;color:var(--gray5)}
.calc-card p{font-size:11px;color:var(--gray3);line-height:1.5}
.badge{
  position:absolute;top:10px;right:10px;
  font-size:10px;font-weight:700;padding:2px 8px;border-radius:var(--rpill);
  text-transform:uppercase;letter-spacing:.3px;
}
.badge-blue{background:var(--blue);color:#fff}
.badge-green{background:var(--green);color:#fff}
.badge-orange{background:var(--orange);color:#fff}

/* ══════════════════════════════════════════
   MAIN LAYOUT (calc + sidebar)
══════════════════════════════════════════ */
.main-layout{
  display:grid;
  grid-template-columns:1fr 310px;
  gap:2rem;padding:1.5rem 1.25rem 3rem;
  max-width:1180px;margin:0 auto;align-items:start;
}
.content-area{}
.sidebar{display:flex;flex-direction:column;gap:1.5rem}

/* ══════════════════════════════════════════
   CALCULATOR PANEL
══════════════════════════════════════════ */
.calc-panel{
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r3);overflow:hidden;box-shadow:var(--shadow-sm);
  margin-bottom:1.5rem;
}
.calc-panel-header{
  padding:1.5rem 1.75rem;border-bottom:1px solid var(--off2);
  background:linear-gradient(to right,var(--off),var(--white));
}
.calc-panel-header h2{font-size:1.25rem;margin-bottom:3px}
.calc-panel-header p{font-size:13px;color:var(--gray3)}
.calc-panel-body{padding:1.75rem}
.calc-tabs{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:1.5rem}
.calc-tab{
  background:var(--off2);border:1px solid var(--gray1);
  color:var(--gray4);font-weight:600;font-size:12px;
  padding:6px 15px;border-radius:var(--rpill);cursor:pointer;
  transition:all var(--t-fast);
}
.calc-tab:hover{border-color:var(--gray2);color:var(--gray5)}
.calc-tab.active{background:var(--blue);border-color:var(--blue);color:#fff}

/* ── FORM ── */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}
.form-row.one{grid-template-columns:1fr}
.form-row.three{grid-template-columns:1fr 1fr 1fr}
.fg{display:flex;flex-direction:column;gap:4px}
.fg label{font-size:11px;font-weight:700;color:var(--gray4);text-transform:uppercase;letter-spacing:.5px}
.fg input,.fg select{
  background:var(--off);border:1.5px solid var(--gray1);
  color:var(--gray5);padding:10px 12px;border-radius:var(--r);
  font-size:14px;font-family:var(--font);outline:none;
  transition:all var(--t-fast);
}
.fg input:focus,.fg select:focus{
  border-color:var(--blue);background:#fff;
  box-shadow:0 0 0 3px var(--blue-l);
}
.fg select{
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b95a8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;
}
.fg .hint{font-size:11px;color:var(--gray3);margin-top:2px}
.unit-toggle{display:flex;gap:4px;margin-bottom:.85rem}
.unit-btn{
  background:var(--off2);border:1px solid var(--gray1);color:var(--gray4);
  font-size:12px;font-weight:700;padding:5px 14px;border-radius:var(--rpill);
  cursor:pointer;font-family:var(--font);transition:all var(--t-fast);
}
.unit-btn.active{background:var(--gray5);color:#fff;border-color:var(--gray5)}

/* ── RANGE ── */
.range-field{display:flex;flex-direction:column;gap:5px;margin-bottom:.75rem}
.range-field label{
  font-size:11px;font-weight:700;color:var(--gray4);text-transform:uppercase;
  letter-spacing:.5px;display:flex;justify-content:space-between;align-items:center;
}
.range-val{
  background:var(--blue-l);color:var(--blue);
  font-size:12px;font-weight:800;padding:2px 10px;border-radius:var(--rpill);
}
.range-field input[type=range]{
  -webkit-appearance:none;width:100%;height:5px;
  border-radius:3px;background:var(--gray1);outline:none;cursor:pointer;
}
.range-field input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--blue);cursor:pointer;border:2px solid #fff;
  box-shadow:0 1px 4px rgba(37,99,235,.4);
}
.range-field input[type=range]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;
  background:var(--blue);cursor:pointer;border:2px solid #fff;
}
.range-marks{display:flex;justify-content:space-between;font-size:10px;color:var(--gray3)}

/* ── CALC BUTTON ── */
.btn-calc{
  width:100%;background:var(--blue);color:#fff;font-family:var(--font);
  font-weight:700;font-size:1rem;padding:13px;border-radius:var(--rpill);
  border:none;cursor:pointer;transition:background var(--t-fast);margin-top:1.25rem;
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn-calc:hover{background:var(--blue-d)}
.btn-calc:active{transform:scale(.99)}

/* ══════════════════════════════════════════
   RESULT BOX
══════════════════════════════════════════ */
.result-box{
  background:var(--off);border:1.5px solid var(--gray1);
  border-radius:var(--r2);padding:1.5rem;margin-top:1.5rem;
  display:none;animation:fadeSlideIn .4s ease;
}
.result-box.show{display:block}
@keyframes fadeSlideIn{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:translateY(0)}
}
.result-main{display:flex;align-items:center;gap:1.5rem;margin-bottom:1.25rem;flex-wrap:wrap}
.result-score-wrap{text-align:center;flex-shrink:0}
.result-score{font-size:3rem;font-weight:800;line-height:1}
.result-score-label{font-size:10px;color:var(--gray3);text-transform:uppercase;letter-spacing:1px;margin-top:3px}
.result-level{
  display:inline-block;padding:5px 16px;border-radius:var(--rpill);
  font-weight:700;font-size:12px;margin-top:7px;
}
.result-details{flex:1;min-width:180px}
.result-details h3{font-size:.95rem;font-weight:700;margin-bottom:7px}
.result-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:6px 0;border-bottom:1px solid var(--gray1);font-size:13px;
}
.result-row:last-child{border:none}
.result-row span{color:var(--gray4)}
.result-row strong{color:var(--gray5);font-weight:700}
.result-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));
  gap:.65rem;margin-bottom:1rem;
}
.result-cell{
  background:#fff;border:1px solid var(--gray1);border-radius:var(--r);
  padding:.85rem;text-align:center;
}
.result-cell-val{font-size:1.35rem;font-weight:800;color:var(--gray5)}
.result-cell-label{font-size:10px;color:var(--gray3);margin-top:3px;text-transform:uppercase;letter-spacing:.5px}

/* ── PROGRESS BAR ── */
.prog-bar-wrap{margin-top:.85rem}
.prog-bar-wrap label{
  font-size:12px;font-weight:700;color:var(--gray4);
  display:flex;justify-content:space-between;margin-bottom:4px;
}
.prog-track{height:7px;background:var(--gray1);border-radius:4px;overflow:hidden}
.prog-fill{height:100%;border-radius:4px;transition:width 1s ease}

/* ── TIPS ── */
.tips-box{
  background:#fff;border-left:3px solid var(--blue);
  border-radius:0 var(--r) var(--r) 0;padding:.9rem 1.1rem;margin-top:.85rem;
}
.tips-box h4{font-size:13px;font-weight:700;margin-bottom:.4rem}
.tips-box ul{padding-left:1.1rem}
.tips-box ul li{font-size:13px;color:var(--gray4);margin-bottom:3px;line-height:1.55}
.disclaimer-note{
  background:#fffbeb;border:1px solid #fde68a;border-radius:var(--r);
  padding:10px 14px;font-size:12px;color:#92400e;margin-top:.85rem;line-height:1.6;
}

/* ── SHARE BUTTONS ── */
.share-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1rem}
.share-btn{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:600;padding:6px 12px;border-radius:var(--rpill);
  border:1px solid var(--gray1);background:var(--white);color:var(--gray4);
  cursor:pointer;transition:all var(--t-fast);text-decoration:none;
}
.share-btn:hover{border-color:var(--gray2);color:var(--gray5)}
.share-btn.whatsapp:hover{background:#25D366;border-color:#25D366;color:#fff}
.share-btn.twitter:hover{background:#000;border-color:#000;color:#fff}
.share-btn.facebook:hover{background:#1877f2;border-color:#1877f2;color:#fff}
.share-btn.copy:hover{background:var(--blue);border-color:var(--blue);color:#fff}

/* ══════════════════════════════════════════
   SIDEBAR WIDGETS
══════════════════════════════════════════ */
.sidebar-card{
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.2rem;box-shadow:var(--shadow-xs);
}
.sidebar-card h4{
  font-size:13px;font-weight:700;margin-bottom:.75rem;
  padding-bottom:.5rem;border-bottom:1px solid var(--off2);
}
.quick-link{
  display:flex;align-items:center;gap:10px;padding:7px 0;
  border-bottom:1px solid var(--off2);cursor:pointer;
  transition:all var(--t-fast);text-decoration:none;
}
.quick-link:last-child{border:none}
.quick-link:hover .ql-title{color:var(--blue)}
.ql-icon{
  width:30px;height:30px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  font-size:.9rem;flex-shrink:0;
}
.ql-title{font-size:12px;font-weight:600;color:var(--gray5);transition:color var(--t-fast)}
.ql-desc{font-size:11px;color:var(--gray3)}

/* ── AD SLOTS ── */
.ad-slot{display:block;overflow:hidden;text-align:center}
.ad-slot:empty{display:none}
.ad-label{font-size:10px;color:var(--gray3);letter-spacing:.5px;text-align:center;margin-bottom:4px}

/* ── LEAD MAGNET ── */
.lead-box{
  background:linear-gradient(135deg,var(--blue),var(--teal));
  border-radius:var(--r2);padding:1.5rem;color:#fff;text-align:center;
}
.lead-box h4{color:#fff;font-size:1rem;margin-bottom:.4rem}
.lead-box p{font-size:13px;color:rgba(255,255,255,.8);margin-bottom:1rem}
.lead-input{
  width:100%;padding:10px 12px;border-radius:var(--r);border:none;
  font-size:14px;font-family:var(--font);margin-bottom:.5rem;
}
.lead-btn{
  width:100%;background:#fff;color:var(--blue);font-weight:700;
  font-size:14px;padding:10px;border-radius:var(--r);border:none;cursor:pointer;
  transition:opacity var(--t-fast);
}
.lead-btn:hover{opacity:.9}

/* ══════════════════════════════════════════
   INFO / CONTENT SECTIONS
══════════════════════════════════════════ */
.info-section{
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.75rem;margin-bottom:1.5rem;
}
.info-section h2{font-size:1.15rem;margin-bottom:.75rem}
.info-section h3{font-size:.95rem;font-weight:700;margin-top:1.2rem;margin-bottom:.4rem}
.info-section p{font-size:.875rem;color:var(--gray4);line-height:1.8;margin-bottom:.65rem}
.info-section ul,.info-section ol{padding-left:1.25rem;margin-bottom:.65rem}
.info-section li{font-size:.875rem;color:var(--gray4);line-height:1.7;margin-bottom:3px}
.info-table{width:100%;border-collapse:collapse;margin:.85rem 0;font-size:13px}
.info-table th{
  background:var(--off2);padding:9px 12px;text-align:left;
  font-weight:700;color:var(--gray5);border-bottom:2px solid var(--gray1);
}
.info-table td{padding:8px 12px;border-bottom:1px solid var(--gray1);color:var(--gray4)}
.info-table tr:last-child td{border:none}
.info-table tr:hover td{background:var(--off)}

/* ── FAQ ── */
.faq-item{border:1px solid var(--gray1);border-radius:var(--r);margin-bottom:6px;overflow:hidden}
.faq-q{
  width:100%;background:var(--white);border:none;padding:.9rem 1.1rem;
  display:flex;justify-content:space-between;align-items:center;
  font-size:13px;font-weight:600;color:var(--gray5);cursor:pointer;
  text-align:left;font-family:var(--font);transition:background var(--t-fast);gap:.75rem;
}
.faq-q:hover{background:var(--off)}
.faq-item.open .faq-q{background:var(--blue-l);color:var(--blue)}
.faq-arr{flex-shrink:0;font-size:11px;color:var(--gray3);transition:transform .3s}
.faq-item.open .faq-arr{transform:rotate(180deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-body{max-height:400px}
.faq-body-inner{padding:0 1.1rem .9rem;font-size:13px;color:var(--gray4);line-height:1.7;background:var(--white)}

/* ══════════════════════════════════════════
   TESTIMONIALS
══════════════════════════════════════════ */
.testi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.testi-card{
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.25rem;
}
.stars{color:#f59e0b;font-size:13px;margin-bottom:.5rem}
.testi-text{font-size:13px;color:var(--gray4);line-height:1.65;margin-bottom:.85rem;font-style:italic}
.testi-author{display:flex;align-items:center;gap:9px}
.testi-ava{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:12px;color:#fff;flex-shrink:0;
}
.testi-name{font-size:13px;font-weight:700;color:var(--gray5)}
.testi-role{font-size:11px;color:var(--gray3)}

/* ══════════════════════════════════════════
   SCORE / GAMIFICATION
══════════════════════════════════════════ */
.score-ring-wrap{position:relative;width:100px;height:100px;margin:0 auto .75rem}
.score-ring{transform:rotate(-90deg)}
.score-ring-bg{fill:none;stroke:var(--gray1);stroke-width:8}
.score-ring-fill{fill:none;stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset 1.2s ease}
.score-center{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
}
.score-num{font-size:1.75rem;font-weight:800;line-height:1}
.score-denom{font-size:10px;color:var(--gray3)}
.badge-achievement{
  display:inline-flex;align-items:center;gap:5px;
  padding:5px 12px;border-radius:var(--rpill);
  font-size:12px;font-weight:700;border:1.5px solid;margin:3px;
}

/* ══════════════════════════════════════════
   STATS BAR
══════════════════════════════════════════ */
.stats-bar{
  background:var(--gray5);color:#fff;
  padding:.75rem 1.25rem;
}
.stats-inner{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;justify-content:center;
  gap:2rem;flex-wrap:wrap;
}
.stat-item{text-align:center}
.stat-num{font-size:1.1rem;font-weight:800;color:#fff}
.stat-lbl{font-size:11px;color:rgba(255,255,255,.6);text-transform:uppercase;letter-spacing:.5px}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
footer{
  background:var(--gray5);color:rgba(255,255,255,.7);
  padding:3rem 1.25rem 1.5rem;margin-top:3rem;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:2rem;max-width:1180px;margin:0 auto 2rem;
}
.footer-brand{color:#fff;font-weight:800;font-size:1.1rem;display:flex;align-items:center;gap:8px;margin-bottom:.85rem}
.footer-desc{font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;margin-bottom:1rem}
.footer-col h5{font-size:12px;font-weight:700;color:rgba(255,255,255,.9);text-transform:uppercase;letter-spacing:.8px;margin-bottom:.75rem}
.footer-col a{
  display:block;font-size:13px;color:rgba(255,255,255,.55);
  margin-bottom:.4rem;transition:color var(--t-fast);
}
.footer-col a:hover{color:#fff}
.footer-bottom{
  max-width:1180px;margin:0 auto;
  border-top:1px solid rgba(255,255,255,.1);padding-top:1.25rem;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem;
}
.footer-bottom p{font-size:12px;color:rgba(255,255,255,.4)}
.footer-bottom-links{display:flex;gap:1rem}
.footer-bottom-links a{font-size:12px;color:rgba(255,255,255,.4);transition:color var(--t-fast)}
.footer-bottom-links a:hover{color:rgba(255,255,255,.8)}

/* ══════════════════════════════════════════
   BREADCRUMBS
══════════════════════════════════════════ */
.breadcrumb{
  background:var(--white);border-bottom:1px solid var(--gray1);
  padding:.75rem 1.25rem;
}
.breadcrumb-inner{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;gap:.4rem;font-size:12px;
}
.breadcrumb-inner a{color:var(--gray3);transition:color var(--t-fast)}
.breadcrumb-inner a:hover{color:var(--blue)}
.breadcrumb-sep{color:var(--gray2)}
.breadcrumb-current{color:var(--gray5);font-weight:600}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media(max-width:768px){
  .main-layout{grid-template-columns:1fr}
  .sidebar{order:1}
  .content-area{order:0}
  .form-row{grid-template-columns:1fr}
  .form-row.three{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hamburger{display:block}
  .nav-links,.nav-cta{display:none}
  .hero{padding:3rem 1.25rem 2.5rem}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
  .calc-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:1.75rem}
  .form-row.three{grid-template-columns:1fr}
  .result-grid{grid-template-columns:1fr 1fr}
}

/* ══════════════════════════════════════════
   UTILITY
══════════════════════════════════════════ */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.mt1{margin-top:.5rem}.mt2{margin-top:1rem}.mt3{margin-top:1.5rem}.mt4{margin-top:2rem}
.mb1{margin-bottom:.5rem}.mb2{margin-bottom:1rem}.mb3{margin-bottom:1.5rem}
.text-center{text-align:center}
.hidden{display:none!important}
.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap1{gap:.5rem}.gap2{gap:1rem}

/* ══════════════════════════════════════════
   SOCIAL SHARE + CERTIFICATE
══════════════════════════════════════════ */
.share-section{
  background:var(--off);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.1rem 1.25rem;margin-top:1.25rem;
}
.share-title{
  font-size:13px;font-weight:700;color:var(--gray5);
  margin-bottom:.75rem;display:flex;align-items:center;gap:6px;
}
.share-btns{display:flex;gap:.5rem;flex-wrap:wrap}
.sbtn{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:8px 14px;border-radius:var(--rpill);
  border:1.5px solid;cursor:pointer;font-family:var(--font);
  transition:all var(--t-fast);text-decoration:none;
}
.sbtn-wa{background:#25D36615;border-color:#25D366;color:#16a34a}
.sbtn-wa:hover{background:#25D366;color:#fff}
.sbtn-x{background:#00000010;border-color:#000;color:#111}
.sbtn-x:hover{background:#000;color:#fff}
.sbtn-fb{background:#1877f210;border-color:#1877f2;color:#1877f2}
.sbtn-fb:hover{background:#1877f2;color:#fff}
.sbtn-copy{background:var(--off2);border-color:var(--gray2);color:var(--gray4)}
.sbtn-copy:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.sbtn-cert{background:linear-gradient(135deg,#f59e0b,#d97706);border-color:#d97706;color:#fff;border:none}
.sbtn-cert:hover{opacity:.9;transform:translateY(-1px)}

.cert-preview-wrap{
  margin-top:1.25rem;background:var(--off);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.1rem;
}
.cert-preview-wrap h4{font-size:13px;font-weight:700;margin-bottom:.75rem;color:var(--gray5)}
.cert-preview-img{
  width:100%;border-radius:var(--r);
  box-shadow:var(--shadow-md);display:block;
}
.cert-actions{display:flex;gap:.5rem;margin-top:.85rem;flex-wrap:wrap}

/* ── HIDE EMPTY ADSENSE SLOTS ─────────────────────────────
   Prevents blank boxes showing before ads load.
   Google's script removes this once the ad fills. */
.adsbygoogle:not([data-adsbygoogle-status]) { display:none!important; }
ins.adsbygoogle[data-adsbygoogle-status="done"]:empty { display:none!important; }
.ad-wrap:empty { display:none!important; }
.ad-wrap { min-height:0; }

/* Also fix cert-dl-btn class (was missing) */
.cert-dl-btn {
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,#f59e0b,#d97706);
  color:#fff;font-weight:700;font-size:13px;
  padding:10px 20px;border-radius:var(--rpill);
  border:none;cursor:pointer;font-family:var(--font);
  transition:opacity var(--t-fast);
}
.cert-dl-btn:hover{opacity:.9}

/* ══════════════════════════════════════════
   DARK MODE
══════════════════════════════════════════ */
[data-theme="dark"] {
  --white:#1e2433;
  --off:#161c2d;
  --off2:#1a2035;
  --gray1:#2a3148;
  --gray2:#3d4870;
  --gray3:#7b8ab8;
  --gray4:#a8b4d0;
  --gray5:#e2e8f5;
  --blue:#4f8ef7;
  --blue-d:#3b7de8;
  --blue-l:#1a2d52;
  --blue-m:#1e3460;
  --teal:#22d3ee;
  --green:#34d399;
  --orange:#fb923c;
  --red:#f87171;
  --shadow-sm:0 1px 3px rgba(0,0,0,.4);
  --shadow-md:0 4px 6px rgba(0,0,0,.4);
  --shadow-lg:0 10px 15px rgba(0,0,0,.4);
}
[data-theme="dark"] body { background:#0f1629; color:var(--gray5); }
[data-theme="dark"] #site-nav { background:rgba(15,22,41,.95); border-color:var(--gray1); }
[data-theme="dark"] .logo { color:var(--gray5); }
[data-theme="dark"] .nav-links a { color:var(--gray3); }
[data-theme="dark"] .nav-links a:hover, [data-theme="dark"] .nav-links a.active { background:var(--blue-l); color:var(--blue); }
[data-theme="dark"] .calc-card { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .calc-card:hover { border-color:var(--blue); }
[data-theme="dark"] .calc-panel { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .calc-panel-header { background:var(--off2); border-color:var(--gray1); }
[data-theme="dark"] .fg input, [data-theme="dark"] .fg select { background:var(--off2); border-color:var(--gray1); color:var(--gray5); }
[data-theme="dark"] .fg input:focus, [data-theme="dark"] .fg select:focus { background:var(--off); border-color:var(--blue); }
[data-theme="dark"] .result-box { background:var(--off2); border-color:var(--gray1); }
[data-theme="dark"] .result-row { border-color:var(--gray1); }
[data-theme="dark"] .result-cell { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .info-section { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .info-table th { background:var(--off2); border-color:var(--gray1); }
[data-theme="dark"] .info-table td { border-color:var(--gray1); }
[data-theme="dark"] .info-table tr:hover td { background:var(--off2); }
[data-theme="dark"] .faq-item { border-color:var(--gray1); }
[data-theme="dark"] .faq-q { background:var(--off); color:var(--gray5); }
[data-theme="dark"] .faq-q:hover { background:var(--off2); }
[data-theme="dark"] .faq-body-inner { background:var(--off); color:var(--gray4); }
[data-theme="dark"] .sidebar-card { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .quick-link { border-color:var(--gray1); }
[data-theme="dark"] .tips-box { background:var(--off2); border-color:var(--blue); }
[data-theme="dark"] .breadcrumb { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .testi-card { background:var(--off); border-color:var(--gray1); }
[data-theme="dark"] .share-section { background:var(--off2); border-color:var(--gray1); }
[data-theme="dark"] .sbtn { background:var(--off2); border-color:var(--gray1); color:var(--gray4); }
[data-theme="dark"] .prog-track { background:var(--gray1); }
[data-theme="dark"] .range-field input[type=range] { background:var(--gray1); }
[data-theme="dark"] .week-plan .day-label { background:var(--off2); }
[data-theme="dark"] .week-plan .day { border-color:var(--gray1); }
[data-theme="dark"] .dark-toggle { background:var(--off); border-color:var(--gray1); color:var(--gray4); }

/* ── DARK TOGGLE BUTTON ── */
.dark-toggle {
  background:var(--off2);border:1px solid var(--gray1);
  color:var(--gray4);font-size:16px;width:36px;height:36px;
  border-radius:50%;cursor:pointer;display:flex;align-items:center;
  justify-content:center;transition:all var(--t-fast);flex-shrink:0;
}
.dark-toggle:hover { border-color:var(--blue); color:var(--blue); }

/* ── PROGRESS TRACKER ── */
.tracker-panel {
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.5rem;margin-bottom:1.5rem;
}
.tracker-entry {
  display:flex;align-items:center;gap:.75rem;
  padding:.65rem 0;border-bottom:1px solid var(--off2);
  font-size:13px;
}
.tracker-entry:last-child { border:none; }
.tracker-score {
  font-size:1.1rem;font-weight:800;min-width:42px;text-align:center;
}
.tracker-bar { flex:1;height:6px;background:var(--gray1);border-radius:3px;overflow:hidden; }
.tracker-fill { height:100%;border-radius:3px;transition:width .8s ease; }
.tracker-date { font-size:11px;color:var(--gray3);min-width:80px;text-align:right; }
.tracker-delta { font-size:11px;font-weight:700;min-width:35px;text-align:right; }

/* ── CHART STYLES ── */
.chart-wrap { position:relative;margin:1rem 0; }
.gauge-svg { width:200px;height:120px;display:block;margin:0 auto; }
.chart-label { text-align:center;font-size:12px;color:var(--gray3);margin-top:4px; }

/* ── STICKY FOOTER AD ── */
.sticky-ad-footer {
  position:fixed;bottom:0;left:0;right:0;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--gray1);
  padding:.4rem;text-align:center;z-index:150;
  transform:translateY(100%);transition:transform .3s ease;
}
.sticky-ad-footer.visible { transform:translateY(0); }
.sticky-ad-close {
  position:absolute;top:4px;right:8px;
  background:none;border:none;font-size:16px;cursor:pointer;color:var(--gray3);
}
[data-theme="dark"] .sticky-ad-footer { background:rgba(15,22,41,.97);border-color:var(--gray1); }

/* ── INSTALL BANNER ── */
.pwa-banner {
  background:linear-gradient(135deg,var(--blue),var(--teal));
  color:#fff;padding:.75rem 1.25rem;
  display:none;align-items:center;gap:.75rem;flex-wrap:wrap;
  position:sticky;top:64px;z-index:190;
}
.pwa-banner.show { display:flex; }
.pwa-banner p { margin:0;font-size:13px;font-weight:600;flex:1; }
.pwa-install-btn {
  background:#fff;color:var(--blue);font-weight:700;font-size:12px;
  padding:6px 16px;border-radius:var(--rpill);border:none;cursor:pointer;
  font-family:var(--font);white-space:nowrap;
}
.pwa-dismiss { background:none;border:none;color:rgba(255,255,255,.7);font-size:18px;cursor:pointer; }

/* ── RESULT CHART ANIMATIONS ── */
@keyframes gaugeIn { from { stroke-dashoffset:314; } }
.gauge-ring { animation: gaugeIn 1.2s ease forwards; }
@keyframes countUp { from { opacity:0; transform:scale(.8); } to { opacity:1; transform:scale(1); } }
.result-score { animation: countUp .5s ease; }

/* ══════════════════════════════════════════
   DARK MODE
══════════════════════════════════════════ */
[data-theme="dark"] {
  --white:#1e2433;
  --off:#161b27;
  --off2:#1e2433;
  --off3:#252d3d;
  --gray1:#2d3748;
  --gray2:#3d4f6b;
  --gray3:#718096;
  --gray4:#a0aec0;
  --gray5:#e2e8f0;
  --blue-l:#1a2744;
  --blue-m:#1e3260;
  --shadow-sm:0 1px 3px rgba(0,0,0,.4);
  --shadow-md:0 4px 6px rgba(0,0,0,.4);
}
[data-theme="dark"] body { background:var(--off); color:var(--gray5); }
[data-theme="dark"] #site-nav { background:rgba(22,27,39,.95); border-color:#2d3748; }
[data-theme="dark"] .calc-panel,
[data-theme="dark"] .info-section,
[data-theme="dark"] .sidebar-card,
[data-theme="dark"] .testi-card,
[data-theme="dark"] .faq-item { background:#1e2433; border-color:#2d3748; }
[data-theme="dark"] .calc-panel-header { background:#161b27; border-color:#2d3748; }
[data-theme="dark"] .fg input,
[data-theme="dark"] .fg select { background:#161b27; border-color:#2d3748; color:var(--gray5); }
[data-theme="dark"] .fg input:focus,
[data-theme="dark"] .fg select:focus { background:#1e2433; border-color:var(--blue); }
[data-theme="dark"] .result-box { background:#161b27; border-color:#2d3748; }
[data-theme="dark"] .result-cell { background:#1e2433; border-color:#2d3748; }
[data-theme="dark"] .tips-box { background:#1e2433; border-color:var(--blue); }
[data-theme="dark"] .faq-q { background:#1e2433; color:var(--gray5); }
[data-theme="dark"] .faq-q:hover { background:#252d3d; }
[data-theme="dark"] .faq-item.open .faq-q { background:#1a2744; }
[data-theme="dark"] .faq-body-inner { background:#1e2433; }
[data-theme="dark"] .share-section { background:#161b27; border-color:#2d3748; }
[data-theme="dark"] .sbtn { background:#1e2433; border-color:#2d3748; color:var(--gray4); }
[data-theme="dark"] .info-table th { background:#252d3d; }
[data-theme="dark"] .info-table td { border-color:#2d3748; }
[data-theme="dark"] .info-table tr:hover td { background:#252d3d; }
[data-theme="dark"] .quick-link { border-color:#2d3748; }
[data-theme="dark"] footer { background:#0d1117; }
[data-theme="dark"] .breadcrumb { background:#1e2433; border-color:#2d3748; }
[data-theme="dark"] .calc-card { background:#1e2433; border-color:#2d3748; }
[data-theme="dark"] .calc-card:hover { border-color:var(--blue); }
[data-theme="dark"] .calc-tab { background:#252d3d; border-color:#2d3748; color:var(--gray4); }
[data-theme="dark"] .prog-track { background:#2d3748; }
[data-theme="dark"] .unit-btn { background:#252d3d; border-color:#2d3748; color:var(--gray4); }
[data-theme="dark"] .disclaimer-note { background:#2d1f00; border-color:#78350f; color:#fcd34d; }
[data-theme="dark"] .highlight-box { background:#1a2744; }
[data-theme="dark"] .ad-wrap { background:#161b27; }

/* ══════════════════════════════════════════
   VISUALISATION CONTAINERS
══════════════════════════════════════════ */
.viz-section {
  margin-top:1.25rem;
  padding:1.25rem;
  background:var(--off);
  border:1px solid var(--gray1);
  border-radius:var(--r2);
}
[data-theme="dark"] .viz-section { background:#161b27; border-color:#2d3748; }
.viz-title {
  font-size:13px;font-weight:700;color:var(--gray5);
  margin-bottom:1rem;display:flex;align-items:center;gap:6px;
}
.viz-grid {
  display:grid;grid-template-columns:1fr 1fr;gap:1rem;
}
.viz-canvas-wrap { text-align:center; }
.viz-canvas-wrap canvas { max-width:100%;height:auto; }
.viz-label { font-size:11px;color:var(--gray3);margin-top:4px; }
@media(max-width:500px) { .viz-grid { grid-template-columns:1fr; } }

/* ══════════════════════════════════════════
   PWA INSTALL BANNER
══════════════════════════════════════════ */
.pwa-banner {
  position:fixed;bottom:0;left:0;right:0;z-index:999;
  background:linear-gradient(135deg,var(--blue),var(--teal));
  color:#fff;padding:.85rem 1.25rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  box-shadow:0 -4px 20px rgba(0,0,0,.15);
  transform:translateY(100%);
  transition:transform .4s ease;
}
.pwa-banner.show { transform:translateY(0); }
.pwa-banner p { font-size:13px;font-weight:600;margin:0;flex:1 }
.pwa-banner .pwa-install { background:#fff;color:var(--blue);font-weight:700;font-size:12px;padding:7px 16px;border-radius:var(--rpill);border:none;cursor:pointer;font-family:var(--font);white-space:nowrap; }
.pwa-banner .pwa-close { background:transparent;border:none;color:rgba(255,255,255,.7);font-size:20px;cursor:pointer;padding:0 4px;line-height:1; }

/* ══════════════════════════════════════════
   STICKY FOOTER AD (max AdSense)
══════════════════════════════════════════ */
.sticky-ad-bar {
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  background:var(--white);border-top:1px solid var(--gray1);
  padding:4px;text-align:center;
  box-shadow:0 -2px 10px rgba(0,0,0,.08);
}
.sticky-ad-bar .ad-close {
  position:absolute;top:4px;right:8px;background:var(--off2);
  border:none;border-radius:50%;width:20px;height:20px;
  font-size:11px;cursor:pointer;color:var(--gray3);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font);
}
[data-theme="dark"] .sticky-ad-bar { background:#1e2433; border-color:#2d3748; }

/* ══════════════════════════════════════════
   PROGRESS TRACKER
══════════════════════════════════════════ */
.tracker-panel {
  background:var(--white);border:1px solid var(--gray1);
  border-radius:var(--r2);padding:1.25rem;margin-top:1rem;
}
[data-theme="dark"] .tracker-panel { background:#1e2433; border-color:#2d3748; }
.tracker-panel h4 { font-size:14px;font-weight:700;margin-bottom:.75rem; }
.tracker-entry {
  display:flex;align-items:center;justify-content:space-between;
  padding:.5rem 0;border-bottom:1px solid var(--gray1);font-size:13px;
}
.tracker-entry:last-child { border:none; }
.tracker-score {
  font-weight:800;font-size:1.1rem;
}
.tracker-empty {
  text-align:center;padding:1.5rem;color:var(--gray3);font-size:13px;
}