/*
Theme Name: CheckBottleneck
Theme URI: https://checkbottleneck.com
Author: CheckBottleneck Team
Description: High-performance PC Bottleneck Calculator WordPress theme. Core Web Vitals optimized, mobile-first, SEO-ready.
Version: 2.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: checkbottleneck
*/

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  --bg:        #080c10;
  --surface:   #0e1419;
  --surface2:  #141b22;
  --surface3:  #1a2330;
  --border:    rgba(0,200,255,.12);
  --border2:   rgba(0,200,255,.25);
  --accent:    #00c8ff;
  --accent2:   #00ff9d;
  --red:       #ff4757;
  --amber:     #ffa502;
  --text:      #e8f4f8;
  --muted:     #7a9aaa;
  --font-main: 'Rajdhani', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow:    0 0 40px rgba(0,200,255,.06);
  --trans:     all .2s ease;
  /* Touch target minimum */
  --tap-min:   48px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--font-main);font-size:1rem;line-height:1.7;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(0,200,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,200,255,.025) 1px,transparent 1px);
  background-size:40px 40px;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--accent);text-decoration:none;transition:var(--trans);}
a:hover{color:var(--accent2);}
ul,ol{list-style:none;}
h1,h2,h3,h4,h5,h6{font-family:var(--font-main);font-weight:700;line-height:1.2;color:var(--text);}
p{margin-bottom:1rem;color:var(--muted);}
strong{color:var(--text);font-weight:600;}

/* ============================================================
   LAYOUT
   ============================================================ */
.container{max-width:1100px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
.container--narrow{max-width:820px;margin:0 auto;padding:0 20px;}
.section{padding:80px 0;}
.section--sm{padding:50px 0;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
@media(max-width:900px){.grid-3{grid-template-columns:1fr 1fr;}.grid-4{grid-template-columns:1fr 1fr;}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}.section{padding:50px 0;}}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
#site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(8,12,16,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:.5px solid var(--border);height:64px;display:flex;align-items:center;
  transition:box-shadow .3s;
}
#site-header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.4);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;max-width:1100px;margin:0 auto;padding:0 20px;
}
.site-logo{font-size:20px;font-weight:700;color:var(--text);letter-spacing:-.02em;display:flex;align-items:center;gap:8px;}
.site-logo em{font-style:normal;color:var(--accent);text-shadow:0 0 20px rgba(0,200,255,.4);}
.logo-dot{width:8px;height:8px;border-radius:50%;background:var(--accent2);animation:pulse 2s infinite;flex-shrink:0;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}

/* Header controls */
.header-controls{display:flex;align-items:center;gap:8px;}
.header-search-btn{
  background:none;border:.5px solid var(--border2);border-radius:var(--radius-sm);
  color:var(--muted);cursor:pointer;padding:0 12px;
  min-height:var(--tap-min);display:flex;align-items:center;
  transition:var(--trans);font-size:16px;
}
.header-search-btn:hover{border-color:var(--accent);color:var(--accent);}

/* Primary nav */
#primary-navigation ul{display:flex;align-items:center;gap:4px;}
#primary-navigation ul li{position:relative;}
#primary-navigation ul li a{
  display:flex;align-items:center;
  min-height:var(--tap-min);padding:0 14px;
  font-size:14px;font-weight:600;color:var(--muted);
  border-radius:var(--radius-sm);transition:var(--trans);letter-spacing:.02em;white-space:nowrap;
}
#primary-navigation ul li a:hover,
#primary-navigation ul li.current-menu-item>a{color:var(--accent);background:rgba(0,200,255,.08);}
/* Sub-menu — HIDDEN by default with maximum specificity */
/* NO CSS :hover rule at all — dropdowns are 100% JS-controlled */
/* This prevents WordPress core/block CSS from ever forcing them open */
html body #primary-navigation .sub-menu,
html body #primary-navigation ul ul,
html body nav ul .sub-menu,
html body ul.sub-menu,
html body .sub-menu {
  display:none !important;
  visibility:hidden !important;
  opacity:0 !important;
  pointer-events:none !important;
  position:absolute;
  top:100%; /* FIX: was calc(100% + 8px) — 8px gap caused mouseleave to fire */
  left:0;
  background:var(--surface);
  border:.5px solid var(--border2);
  border-radius:var(--radius);
  padding:16px 8px 8px; /* FIX: top padding replaces the old gap visually */
  min-width:220px;
  box-shadow:0 20px 40px rgba(0,0,0,.4);
  flex-direction:column;
  gap:2px;
  z-index:100;
  list-style:none;
  margin:0;
}
/* ONLY opened when JS adds .cbn-open to the parent <li> */
html body #primary-navigation ul li.cbn-open > .sub-menu {
  display:flex !important;
  visibility:visible !important;
  opacity:1 !important;
  pointer-events:auto !important;
}
.sub-menu li a{font-size:13px!important;min-height:40px!important;}
.nav-cta{
  background:rgba(0,200,255,.12)!important;border:.5px solid var(--accent)!important;
  color:var(--accent)!important;border-radius:20px!important;
}
.nav-cta:hover{background:rgba(0,200,255,.22)!important;box-shadow:0 0 14px rgba(0,200,255,.2);}

/* Mobile menu */
.menu-toggle{
  display:none;background:none;border:.5px solid var(--border2);
  border-radius:var(--radius-sm);color:var(--text);cursor:pointer;
  min-width:var(--tap-min);min-height:var(--tap-min);font-size:18px;
  align-items:center;justify-content:center;
}
@media(max-width:900px){
  .menu-toggle{display:flex;}
  #primary-navigation{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--surface);border-bottom:.5px solid var(--border);padding:12px 20px 20px;
  }
  #primary-navigation.open{display:block;}
  #primary-navigation ul{flex-direction:column;gap:2px;}
  #primary-navigation ul li a{padding:0 14px;min-height:var(--tap-min);}
  #primary-navigation .sub-menu,
  #primary-navigation ul ul {position:static;box-shadow:none;border:none;background:var(--surface2);margin-top:4px;}
  /* Mobile: JS adds .cbn-open class same as desktop */
  #primary-navigation ul li.cbn-open > .sub-menu {display:flex !important;visibility:visible !important;opacity:1 !important;pointer-events:auto !important;}
  .header-controls{gap:4px;}
}

/* Site search overlay */
.search-overlay{
  display:none;position:fixed;inset:0;z-index:2000;
  background:rgba(8,12,16,.96);backdrop-filter:blur(16px);
  align-items:flex-start;justify-content:center;padding-top:120px;
}
.search-overlay.open{display:flex;}
.search-overlay-inner{width:100%;max-width:600px;padding:0 20px;}
.search-overlay-inner .search-form{display:flex;gap:10px;}
.search-overlay-inner input[type=search]{
  flex:1;background:var(--surface2);border:.5px solid var(--border2);
  border-radius:var(--radius);color:var(--text);font-family:var(--font-main);
  font-size:20px;padding:14px 18px;outline:none;
}
.search-overlay-inner input[type=search]:focus{border-color:var(--accent);}
.search-close{
  background:none;border:.5px solid var(--border2);border-radius:var(--radius-sm);
  color:var(--muted);cursor:pointer;min-width:52px;min-height:52px;font-size:20px;
  display:flex;align-items:center;justify-content:center;
}
.search-close:hover{border-color:var(--red);color:var(--red);}

/* ============================================================
   HERO
   ============================================================ */
.hero{padding:80px 0 60px;text-align:center;position:relative;overflow:hidden;}
.hero::before{
  content:'';position:absolute;top:-200px;left:50%;transform:translateX(-50%);
  width:600px;height:600px;pointer-events:none;
  background:radial-gradient(circle,rgba(0,200,255,.08) 0%,transparent 70%);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,200,255,.08);border:.5px solid var(--border2);
  border-radius:20px;padding:5px 14px;font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);margin-bottom:24px;font-family:var(--font-mono);
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent2);animation:pulse 2s infinite;}
.hero h1{font-size:clamp(32px,5.5vw,58px);font-weight:700;letter-spacing:-.02em;line-height:1.08;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--accent);text-shadow:0 0 40px rgba(0,200,255,.35);}
.hero-desc{font-size:18px;color:var(--muted);max-width:580px;margin:0 auto 32px;line-height:1.6;}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:40px;flex-wrap:wrap;}
.hero-stat{text-align:center;}
.hero-stat .val{font-size:28px;font-weight:700;font-family:var(--font-mono);color:var(--accent);display:block;}
.hero-stat .lbl{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;}

/* ============================================================
   BUTTONS — all meet 48px min tap target
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 28px;min-height:var(--tap-min);border-radius:10px;
  font-family:var(--font-main);font-size:15px;font-weight:700;letter-spacing:.04em;
  cursor:pointer;transition:var(--trans);border:none;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,rgba(0,200,255,.18),rgba(0,255,157,.10));
  border:.5px solid var(--accent);color:var(--accent);
}
.btn-primary:hover{box-shadow:0 0 24px rgba(0,200,255,.3);transform:translateY(-2px);color:var(--accent);}
.btn-secondary{background:transparent;border:.5px solid var(--border2);color:var(--muted);}
.btn-secondary:hover{border-color:var(--accent2);color:var(--accent2);}
.btn-ghost{background:none;border:none;color:var(--muted);padding:0 8px;min-height:var(--tap-min);}
.btn-ghost:hover{color:var(--accent);}
.btn-group{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;}

/* ============================================================
   CARDS
   ============================================================ */
.card{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s;}
.card:hover{border-color:var(--border2);}
.card-header{padding:14px 22px;border-bottom:.5px solid var(--border);display:flex;align-items:center;gap:10px;}
.card-icon{width:30px;height:30px;border-radius:7px;background:rgba(0,200,255,.1);border:.5px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:13px;}
.card-title{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-family:var(--font-mono);}
.card-body{padding:22px;}

/* ============================================================
   TOOLTIPS
   ============================================================ */
.tooltip-wrap{position:relative;display:inline-flex;align-items:center;}
.tooltip-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:18px;height:18px;border-radius:50%;background:rgba(0,200,255,.12);
  border:.5px solid var(--border2);color:var(--accent);font-size:11px;
  cursor:help;margin-left:6px;font-family:var(--font-mono);font-weight:700;flex-shrink:0;
}
.tooltip-box{
  position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--surface2);border:.5px solid var(--border2);border-radius:var(--radius-sm);
  padding:10px 14px;width:240px;font-size:13px;color:var(--muted);line-height:1.5;
  opacity:0;pointer-events:none;transition:opacity .18s;z-index:200;font-family:var(--font-main);font-weight:400;
  box-shadow:0 8px 24px rgba(0,0,0,.3);
}
.tooltip-box::after{
  content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);
  border:6px solid transparent;border-top-color:var(--border2);
}
.tooltip-wrap:hover .tooltip-box,
.tooltip-icon:focus+.tooltip-box{opacity:1;}

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-header{text-align:center;margin-bottom:48px;}
.section-tag{
  display:inline-block;background:rgba(0,200,255,.08);border:.5px solid var(--border2);
  border-radius:20px;padding:4px 14px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-mono);margin-bottom:14px;
}
.section-title{font-size:clamp(24px,3.5vw,38px);margin-bottom:14px;}
.section-title em{font-style:normal;color:var(--accent);}
.section-subtitle{font-size:16px;color:var(--muted);max-width:560px;margin:0 auto;}

/* ============================================================
   FEATURE BOXES
   ============================================================ */
.feature-box{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:24px;transition:var(--trans);}
.feature-box:hover{border-color:var(--border2);transform:translateY(-2px);}
.feature-icon{font-size:28px;margin-bottom:14px;display:block;}
.feature-box h3{font-size:17px;margin-bottom:8px;}
.feature-box p{font-size:14px;margin-bottom:0;}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media(max-width:700px){.steps{grid-template-columns:1fr;}}
.step{text-align:center;padding:32px 24px;}
.step-number{
  width:48px;height:48px;border-radius:50%;background:rgba(0,200,255,.1);
  border:.5px solid var(--accent);display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;font-family:var(--font-mono);color:var(--accent);margin:0 auto 16px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{max-width:780px;margin:0 auto;}
.faq-item{border-bottom:.5px solid var(--border);}
.faq-item:first-child{border-top:.5px solid var(--border);}
.faq-question{
  width:100%;background:none;border:none;color:var(--text);
  font-family:var(--font-main);font-size:16px;font-weight:600;
  padding:18px 0;text-align:left;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  transition:var(--trans);min-height:var(--tap-min);
}
.faq-question:hover{color:var(--accent);}
.faq-icon{font-size:12px;color:var(--muted);transition:transform .25s;flex-shrink:0;font-style:normal;}
.faq-question.active .faq-icon{transform:rotate(180deg);color:var(--accent);}
.faq-answer{display:none;padding:0 0 18px;font-size:15px;line-height:1.7;color:var(--muted);}
.faq-answer.open{display:block;}

/* ============================================================
   TABLE OF CONTENTS (blog posts)
   ============================================================ */
.toc-box{
  background:var(--surface2);border:.5px solid var(--border2);border-radius:var(--radius);
  padding:20px 24px;margin-bottom:32px;
}
.toc-box-title{font-size:13px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:12px;}
.toc-list{list-style:none;}
.toc-list li{padding:4px 0;border-bottom:.5px solid var(--border);font-size:14px;}
.toc-list li:last-child{border-bottom:none;}
.toc-list li a{color:var(--muted);}
.toc-list li a:hover{color:var(--accent);}
.toc-list li.toc-h3{padding-left:16px;font-size:13px;}

/* ============================================================
   SOCIAL SHARE
   ============================================================ */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:28px;}
.share-bar-label{font-size:12px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;
  min-height:var(--tap-min);padding:0 14px;border-radius:8px;
  font-size:13px;font-weight:600;cursor:pointer;transition:var(--trans);
  border:.5px solid var(--border2);background:var(--surface2);color:var(--muted);
  text-decoration:none;
}
.share-btn:hover{border-color:var(--accent);color:var(--accent);}
.share-btn.copy-link{position:relative;}
.share-btn.copied{border-color:var(--accent2);color:var(--accent2);}

/* ============================================================
   CALCULATOR RESULTS ACTIONS (share, print, email, embed, PDF)
   ============================================================ */
.results-actions{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:16px 22px;background:var(--surface2);border-top:.5px solid var(--border);
}
.results-actions-label{font-size:11px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);}
.result-action-btn{
  display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:0 14px;border-radius:8px;
  font-size:13px;font-weight:600;cursor:pointer;transition:var(--trans);
  border:.5px solid var(--border2);background:none;color:var(--muted);
  font-family:var(--font-main);
}
.result-action-btn:hover{border-color:var(--accent);color:var(--accent);}

/* Email capture after results */
.email-capture-box{
  background:linear-gradient(135deg,rgba(0,200,255,.06),rgba(0,255,157,.04));
  border:.5px solid var(--border2);border-radius:var(--radius);
  padding:22px;margin-top:14px;text-align:center;
}
.email-capture-box h4{font-size:16px;margin-bottom:6px;}
.email-capture-box p{font-size:14px;margin-bottom:14px;}
.email-form{display:flex;gap:8px;max-width:420px;margin:0 auto;}
.email-form input[type=email]{
  flex:1;background:var(--surface2);border:.5px solid var(--border2);
  border-radius:8px;color:var(--text);font-family:var(--font-main);
  font-size:14px;padding:0 14px;min-height:var(--tap-min);
}
.email-form input[type=email]:focus{outline:none;border-color:var(--accent);}

/* Feedback widget */
.feedback-widget{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:14px 22px;border-top:.5px solid var(--border);
  font-size:14px;color:var(--muted);
}
.feedback-btn{
  display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:0 14px;border-radius:20px;
  font-size:14px;cursor:pointer;transition:var(--trans);
  border:.5px solid var(--border2);background:none;color:var(--muted);font-family:var(--font-main);
}
.feedback-btn:hover{border-color:var(--accent);color:var(--accent);}
.feedback-btn.voted-yes{background:rgba(0,255,157,.1);border-color:var(--accent2);color:var(--accent2);}
.feedback-btn.voted-no{background:rgba(255,71,87,.1);border-color:var(--red);color:var(--red);}

/* Embed modal */
.modal-overlay{
  display:none;position:fixed;inset:0;z-index:3000;background:rgba(8,12,16,.9);
  backdrop-filter:blur(8px);align-items:center;justify-content:center;padding:20px;
}
.modal-overlay.open{display:flex;}
.modal-box{
  background:var(--surface);border:.5px solid var(--border2);border-radius:var(--radius);
  padding:28px;width:100%;max-width:560px;position:relative;
}
.modal-close{
  position:absolute;top:14px;right:14px;background:none;border:.5px solid var(--border2);
  border-radius:var(--radius-sm);color:var(--muted);cursor:pointer;
  min-width:var(--tap-min);min-height:var(--tap-min);font-size:18px;
  display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{border-color:var(--red);color:var(--red);}
.modal-box h3{font-size:18px;margin-bottom:8px;}
.embed-code{
  background:var(--surface2);border:.5px solid var(--border2);border-radius:8px;
  padding:14px;font-family:var(--font-mono);font-size:12px;color:var(--accent);
  word-break:break-all;margin:14px 0;line-height:1.7;
}

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.breadcrumbs{
  padding:14px 0;font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-family:var(--font-mono);
}
.breadcrumbs a{color:var(--muted);}
.breadcrumbs a:hover{color:var(--accent);}
.breadcrumbs .sep{opacity:.4;}
.breadcrumbs .current{color:var(--accent);}

/* ============================================================
   POPULAR PAIRS
   ============================================================ */
.pairs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;}
.pair-link-card{
  background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius-sm);
  padding:14px 18px;display:flex;align-items:center;justify-content:space-between;
  transition:var(--trans);font-size:14px;min-height:var(--tap-min);
}
.pair-link-card:hover{border-color:var(--accent);color:var(--accent);transform:translateX(3px);}
.pair-names{font-weight:600;color:var(--text);}
.pair-names small{display:block;font-size:11px;font-family:var(--font-mono);color:var(--muted);font-weight:400;margin-top:2px;}
.pair-arrow{color:var(--muted);}
.pair-link-card:hover .pair-arrow{color:var(--accent);}

/* ============================================================
   PAIR PAGE COMPONENTS
   ============================================================ */
.pair-header{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:32px;margin-bottom:24px;}
.pair-result{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;text-align:center;margin:24px 0;}
.pair-chip{background:var(--surface2);border:.5px solid var(--border2);border-radius:var(--radius);padding:20px 16px;}
.pair-chip .chip-type{font-size:10px;font-family:var(--font-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px;}
.pair-chip .chip-name{font-size:14px;font-weight:600;color:var(--text);}
.pair-chip .chip-score{font-size:26px;font-weight:700;font-family:var(--font-mono);color:var(--accent);margin-top:6px;}
.vs-badge{font-size:14px;font-family:var(--font-mono);color:var(--muted);}
.result-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;border-radius:20px;font-size:14px;font-weight:700;}
.result-badge.good{background:rgba(0,255,157,.1);border:.5px solid rgba(0,255,157,.4);color:var(--accent2);}
.result-badge.warn{background:rgba(255,165,2,.1);border:.5px solid rgba(255,165,2,.4);color:var(--amber);}
.result-badge.bad{background:rgba(255,71,87,.1);border:.5px solid rgba(255,71,87,.4);color:var(--red);}

/* ============================================================
   TABLES
   ============================================================ */
.res-table{width:100%;border-collapse:collapse;font-size:14px;margin:16px 0;}
.res-table th{text-align:left;padding:10px 14px;font-size:11px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);border-bottom:.5px solid var(--border);}
.res-table td{padding:12px 14px;border-bottom:.5px solid var(--border);color:var(--text);}
.res-table tr:last-child td{border-bottom:none;}

/* ============================================================
   BLOG CARDS
   ============================================================ */
.blog-card{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--trans);display:flex;flex-direction:column;}
.blog-card:hover{border-color:var(--border2);transform:translateY(-3px);box-shadow:0 20px 40px rgba(0,0,0,.3);}
.blog-card-img{height:180px;background:var(--surface2);display:flex;align-items:center;justify-content:center;font-size:40px;border-bottom:.5px solid var(--border);}
.blog-card-body{padding:20px;flex:1;display:flex;flex-direction:column;}
.blog-card-cat{font-size:11px;font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;}
.blog-card-title{font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.3;}
.blog-card-title a{color:inherit;}
.blog-card-title a:hover{color:var(--accent);}
.blog-card-excerpt{font-size:14px;color:var(--muted);flex:1;margin-bottom:16px;}
.blog-card-meta{font-size:12px;color:var(--muted);display:flex;gap:12px;align-items:center;}
.read-more{font-size:13px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px;margin-top:12px;}

/* ============================================================
   SINGLE POST
   ============================================================ */
.post-header{padding:60px 0 40px;}
.post-header h1{font-size:clamp(26px,4vw,42px);margin-bottom:16px;}
.post-meta{display:flex;gap:20px;font-size:13px;color:var(--muted);font-family:var(--font-mono);flex-wrap:wrap;}
.post-content{font-size:16px;line-height:1.8;color:var(--muted);}
.post-content h2{font-size:26px;color:var(--text);margin:40px 0 16px;}
.post-content h3{font-size:20px;color:var(--text);margin:30px 0 12px;}
.post-content h4{font-size:17px;color:var(--text);margin:24px 0 10px;}
.post-content p{margin-bottom:18px;}
.post-content ul,.post-content ol{padding-left:24px;margin-bottom:18px;}
.post-content ul{list-style:disc;}
.post-content ol{list-style:decimal;}
.post-content ul li,.post-content ol li{margin-bottom:8px;color:var(--muted);}
.post-content a{color:var(--accent);border-bottom:1px solid rgba(0,200,255,.3);}
.post-content a:hover{color:var(--accent2);border-color:var(--accent2);}
.post-content blockquote{border-left:3px solid var(--accent);padding:12px 20px;background:rgba(0,200,255,.05);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:24px 0;font-size:17px;color:var(--text);}
.post-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;}
.post-content table th{background:var(--surface2);padding:10px 14px;text-align:left;color:var(--accent);font-size:12px;text-transform:uppercase;letter-spacing:.06em;}
.post-content table td{padding:10px 14px;border-bottom:.5px solid var(--border);}
.post-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;}
.post-tag{background:var(--surface2);border:.5px solid var(--border2);border-radius:20px;padding:4px 12px;font-size:12px;color:var(--muted);font-family:var(--font-mono);}

/* ============================================================
   CONTENT WITH SIDEBAR
   ============================================================ */
.content-with-sidebar{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;}
@media(max-width:900px){.content-with-sidebar{grid-template-columns:1fr;}}
.sidebar-widget{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px;}
.sidebar-widget h4{font-size:13px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:14px;}
.sidebar-widget ul li{padding:8px 0;border-bottom:.5px solid var(--border);font-size:14px;}
.sidebar-widget ul li:last-child{border-bottom:none;}
.sidebar-widget ul li a{color:var(--muted);}
.sidebar-widget ul li a:hover{color:var(--accent);}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form{max-width:600px;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:11px;font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;background:var(--surface2);border:.5px solid var(--border2);border-radius:var(--radius-sm);
  color:var(--text);font-family:var(--font-main);font-size:15px;font-weight:500;
  padding:0 14px;min-height:var(--tap-min);transition:var(--trans);
}
.form-group textarea{height:140px;resize:vertical;min-height:unset;padding:10px 14px;}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,200,255,.1);}

/* ============================================================
   NOTICES
   ============================================================ */
.notice{border-radius:var(--radius-sm);padding:14px 18px;font-size:14px;line-height:1.6;margin:20px 0;}
.notice-info{background:rgba(0,200,255,.07);border:.5px solid rgba(0,200,255,.3);color:var(--accent);}
.notice-success{background:rgba(0,255,157,.07);border:.5px solid rgba(0,255,157,.3);color:var(--accent2);}
.notice-warn{background:rgba(255,165,2,.07);border:.5px solid rgba(255,165,2,.3);color:var(--amber);}

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer{border-top:.5px solid var(--border);padding:60px 0 30px;margin-top:60px;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px;}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:500px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:14px;max-width:280px;}
.footer-col h5{font-size:11px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:14px;}
.footer-col ul li{padding:5px 0;}
.footer-col ul li a{font-size:14px;color:var(--muted);min-height:var(--tap-min);display:inline-flex;align-items:center;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{padding-top:24px;border-top:.5px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap;gap:12px;}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--accent);}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center{text-align:center;}
.text-accent{color:var(--accent);}
.text-muted{color:var(--muted);}
.mt-8{margin-top:8px;}.mt-16{margin-top:16px;}.mt-24{margin-top:24px;}.mt-32{margin-top:32px;}
.mb-0{margin-bottom:0;}.mb-8{margin-bottom:8px;}.mb-16{margin-bottom:16px;}.mb-24{margin-bottom:24px;}
.divider{height:.5px;background:var(--border);margin:40px 0;}
.tag-pill{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-family:var(--font-mono);font-weight:600;letter-spacing:.05em;}
.tag-green{background:rgba(0,255,157,.12);color:var(--accent2);}
.tag-blue{background:rgba(0,200,255,.12);color:var(--accent);}
.tag-amber{background:rgba(255,165,2,.12);color:var(--amber);}
.tag-red{background:rgba(255,71,87,.12);color:var(--red);}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;}}

/* ============================================================
   PRINT STYLES — results panel and page
   ============================================================ */
@media print{
  #site-header,#site-footer,.btn,.sidebar,
  .results-actions,.email-capture-box,.feedback-widget,
  .share-bar,.toc-box,.header-search-btn,
  .menu-toggle,.sub-menu{display:none!important;}
  body{background:#fff!important;color:#000!important;}
  .card,.feature-box,.blog-card,.pair-header{
    background:#fff!important;border:1px solid #ccc!important;
    box-shadow:none!important;break-inside:avoid;
  }
  .container,.container--narrow{max-width:100%;padding:0;}
  body::before{display:none;}
  h1,h2,h3,h4,h5,h6,strong{color:#000!important;}
  p,.post-content,.cstatus,.cspec-box .chip-name{color:#333!important;}
  .gauge-svg{width:180px;}
  #calc-results{display:block!important;}
  a{color:#000;text-decoration:underline;}
  .print-header{display:block!important;}
}
.print-header{display:none;font-size:13px;margin-bottom:16px;}