/* ==========================================================================
   HowMuchCalcs.com — Complete Design System v3
   Dark/Light Mode · Dropdown Nav · Calculators · Blog · Sidebar
   ========================================================================== */

/* ── CSS Variables ─────────────────────────────── */
:root {
  --font-head: 'Outfit', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;

  /* Light palette */
  --bg:          #f8fafc;
  --bg-header:   rgba(255,255,255,.9);
  --bg-card:     #ffffff;
  --bg-input:    #f1f5f9;
  --bg-input-focus: #ffffff;
  --bg-dropdown: #ffffff;
  --bg-code:     #f1f5f9;

  --txt-primary:   #0f172a;
  --txt-secondary: #334155; /* slate-700 for better contrast */
  --txt-muted:     #4b5563; /* gray-600 for better contrast */
  --txt-on-accent: #ffffff;
  --txt-garden:   #065f46; /* green-800 for contrast */
  --txt-masonry:  #c2410c; /* orange-700 for contrast */
  --txt-flooring: #6d28d9; /* violet-700 for contrast */

  --border:       #e2e8f0;
  --border-focus: #3b82f6;

  --sh-sm:  0 1px 3px rgba(0,0,0,.06);
  --sh-md:  0 4px 12px rgba(0,0,0,.08);
  --sh-lg:  0 10px 30px rgba(0,0,0,.10);
  --sh-xl:  0 20px 40px rgba(0,0,0,.12);
  --sh-glow:0 0 24px rgba(59,130,246,.18);

  --primary:   #3b82f6;
  --primary-h: #2563eb;
  --secondary: #10b981;
  --secondary-h:#059669;
  --orange:    #f97316;
  --purple:    #8b5cf6;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-full: 9999px;

  --ease: cubic-bezier(.4,0,.2,1);
  --tf:  .15s var(--ease);
  --tn:  .25s var(--ease);

  --header-h: 70px;
  --glass: blur(16px) saturate(180%);
}

[data-theme="dark"] {
  --bg:          #07101f;
  --bg-header:   rgba(7,16,31,.9);
  --bg-card:     #0f1e33;
  --bg-input:    #162236;
  --bg-input-focus: #0f1e33;
  --bg-dropdown: #0f1e33;
  --bg-code:     #162236;
  --txt-primary:   #f0f6ff;
  --txt-secondary: #cbd5e1; /* Increased contrast (slate-200) */
  --txt-muted:     #94a3b8; /* Increased contrast (slate-400) */
  --border:       #1e3352;
  --border-focus: #60a5fa;
  --sh-sm:  0 1px 3px rgba(0,0,0,.4);
  --sh-md:  0 4px 12px rgba(0,0,0,.35);
  --sh-lg:  0 10px 30px rgba(0,0,0,.45);
  --sh-xl:  0 20px 40px rgba(0,0,0,.55);
  --sh-glow:0 0 28px rgba(59,130,246,.3);
  --txt-garden:   #34d399; /* emerald-400 */
  --txt-masonry:  #fb923c; /* orange-400 */
  --txt-flooring: #c084fc; /* purple-400 */
}

/* ── Resets ─────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;min-height:100%;scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--txt-secondary);
  font-family:var(--font-body);
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background var(--tn),color var(--tn);
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-head);color:var(--txt-primary);font-weight:700;line-height:1.25}
a{color:var(--primary);text-decoration:none;transition:color var(--tf)}
a:hover{color:var(--primary-h)}
img{max-width:100%;height:auto;display:block}
ul,ol{padding-left:20px}
.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}

/* ══ HEADER ═══════════════════════════════════════ */
.site-header{
  position:fixed;top:0;left:0;width:100%;height:var(--header-h);
  background:var(--bg-header);
  backdrop-filter:var(--glass);-webkit-backdrop-filter:var(--glass);
  border-bottom:1px solid var(--border);
  z-index:1000;
  transition:background var(--tn),border-color var(--tn);
}
.hdr-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);gap:16px;
}

/* Logo */
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-icon{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-md);
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;flex-shrink:0;
  box-shadow:0 4px 12px rgba(59,130,246,.3);
}
.logo-text{font-family:var(--font-head);font-size:1.3rem;font-weight:800;color:var(--txt-primary);letter-spacing:-.5px;white-space:nowrap}
.logo-text span{background:linear-gradient(to right,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}

/* Main nav */
.main-nav{display:flex;align-items:center;gap:2px;list-style:none;flex-wrap:nowrap}
.nav-item{position:relative}
.nav-link{
  display:flex;align-items:center;gap:5px;padding:7px 11px;
  border-radius:var(--r-sm);font-size:.875rem;font-weight:600;
  color:var(--txt-secondary);cursor:pointer;white-space:nowrap;
  background:none;border:none;font-family:var(--font-body);
  text-decoration:none;transition:all var(--tf);
}
.nav-link:hover,.nav-item.active .nav-link{color:var(--txt-primary);background:var(--bg-input)}
.nav-link svg{width:13px;height:13px;stroke:currentColor;transition:transform var(--tf);flex-shrink:0}
.nav-item.open .nav-link svg,.nav-item:hover .nav-link svg{transform:rotate(180deg)}
.nav-link.blog-lnk{color:var(--primary);border:1px solid rgba(59,130,246,.3)}
.nav-link.blog-lnk:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Dropdown */
.nav-dd{
  position:absolute;top:calc(100% + 8px);left:0;
  min-width:230px;
  background:var(--bg-dropdown);border:1px solid var(--border);
  border-radius:var(--r-lg);box-shadow:var(--sh-xl);
  padding:8px;list-style:none;z-index:2000;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--tn),transform var(--tn),visibility var(--tn);
}
.nav-item:hover .nav-dd,.nav-item.open .nav-dd{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dd li a{
  display:flex;align-items:center;gap:10px;padding:9px 12px;
  border-radius:var(--r-sm);font-size:.855rem;font-weight:500;
  color:var(--txt-secondary);transition:all var(--tf);
}
.nav-dd li a:hover{background:var(--bg-input);color:var(--txt-primary)}
.dd-icon{font-size:.95rem;width:22px;text-align:center;flex-shrink:0}

/* Header right */
.hdr-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.theme-btn{
  background:none;border:1px solid var(--border);
  width:36px;height:36px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--txt-primary);transition:all var(--tf);
}
.theme-btn:hover{background:var(--bg-input)}
.theme-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
[data-theme="dark"] .sun-ico{display:block}[data-theme="dark"] .moon-ico{display:none}
.sun-ico{display:none}.moon-ico{display:block}

/* Burger */
.burger{
  display:none;background:none;border:1px solid var(--border);
  border-radius:var(--r-sm);padding:7px;cursor:pointer;
  color:var(--txt-primary);flex-direction:column;gap:4px;
  width:36px;height:36px;align-items:center;justify-content:center;
}
.burger span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;transition:all var(--tf)}

/* Mobile nav */
.mob-nav{
  display:none;position:fixed;
  top:var(--header-h);left:0;right:0;
  background:var(--bg-dropdown);border-bottom:1px solid var(--border);
  box-shadow:var(--sh-xl);z-index:999;padding:16px;
  max-height:calc(100vh - var(--header-h));overflow-y:auto;
}
.mob-nav.open{display:block}
.mob-section{margin-bottom:16px}
.mob-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--txt-muted);margin-bottom:8px;padding:0 4px}
.mob-links{list-style:none;padding:0}
.mob-links li a{display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--r-sm);font-size:.875rem;font-weight:500;color:var(--txt-secondary);transition:all var(--tf)}
.mob-links li a:hover{background:var(--bg-input);color:var(--txt-primary)}

@media(max-width:960px){.main-nav{display:none}.burger{display:flex}}

/* ══ HERO ══════════════════════════════════════════ */
.hero{
  padding:calc(var(--header-h) + 72px) 0 56px;
  text-align:center;position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:700px;height:400px;
  background:radial-gradient(ellipse,rgba(59,130,246,.1) 0%,rgba(16,185,129,.05) 50%,transparent 70%);
  z-index:-1;pointer-events:none;
}
.hero-title{
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-1.5px;
  margin-bottom:14px;
  background:linear-gradient(135deg,var(--txt-primary) 40%,var(--txt-secondary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{font-size:1.1rem;color:var(--txt-muted);max-width:580px;margin:0 auto 32px}

/* Search */
.search-wrap{
  max-width:520px;margin:0 auto;position:relative;
  border-radius:var(--r-md);box-shadow:var(--sh-md);
  border:1px solid var(--border);background:var(--bg-card);
  transition:border-color var(--tf),box-shadow var(--tf);
}
.search-wrap:focus-within{border-color:var(--border-focus);box-shadow:var(--sh-glow)}
.search-ico{position:absolute;top:50%;left:16px;transform:translateY(-50%);color:var(--txt-muted)}
.search-ico svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.search-input{
  width:100%;height:52px;border:none;outline:none;background:transparent;
  padding:0 48px;font-size:1rem;font-family:var(--font-body);color:var(--txt-primary);
}
.search-clear{
  position:absolute;top:50%;right:14px;transform:translateY(-50%);
  display:none;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:var(--r-full);
  background:none;border:none;cursor:pointer;color:var(--txt-muted);
}
.search-clear:hover{background:var(--bg-input);color:var(--txt-primary)}

/* Filter tabs */
.filter-tabs{display:flex;justify-content:center;gap:8px;margin-top:20px;flex-wrap:wrap}
.filter-tab{
  background:var(--bg-card);border:1px solid var(--border);
  padding:7px 18px;border-radius:var(--r-full);font-family:var(--font-body);
  font-weight:600;font-size:.875rem;cursor:pointer;color:var(--txt-secondary);
  transition:all var(--tf);
}
.filter-tab:hover{background:var(--bg-input);border-color:var(--txt-muted)}
.filter-tab.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(59,130,246,.25)}

/* ══ TOOLS GRID ════════════════════════════════════ */
.tools-section{padding-bottom:64px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(275px,1fr));gap:22px}
.tool-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;
  display:flex;flex-direction:column;cursor:pointer;
  transition:transform var(--tn),box-shadow var(--tn),border-color var(--tn);
}
.tool-card:hover{transform:translateY(-5px);box-shadow:var(--sh-lg);border-color:var(--border-focus)}
.tool-badge{
  align-self:flex-start;padding:3px 10px;border-radius:var(--r-full);
  font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px;
}
.badge-garden{background:rgba(16,185,129,.1);color:var(--txt-garden)}
.badge-masonry{background:rgba(249,115,22,.1);color:var(--txt-masonry)}
.badge-flooring{background:rgba(139,92,246,.1);color:var(--txt-flooring)}
.tool-icon{font-size:2rem;margin-bottom:10px}
.tool-name{font-size:1.15rem;font-weight:700;margin-bottom:8px;color:var(--txt-primary)}
.tool-desc{font-size:.86rem;color:var(--txt-muted);line-height:1.55;margin-bottom:18px;flex-grow:1}
.tool-cta{display:flex;align-items:center;gap:6px;font-size:.86rem;font-weight:700;color:var(--primary)}
.tool-cta svg{transition:transform var(--tf)}
.tool-card:hover .tool-cta svg{transform:translateX(4px)}

/* ══ LATEST ARTICLES (homepage) ═══════════════════ */
.latest-section{padding:64px 0;border-top:1px solid var(--border)}
.section-hdr{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:32px;gap:16px;flex-wrap:wrap}
.section-title{font-size:1.75rem;font-weight:800;color:var(--txt-primary)}
.section-sub{font-size:.9rem;color:var(--txt-muted);margin-top:4px}
.view-all{display:flex;align-items:center;gap:6px;font-size:.875rem;font-weight:700;color:var(--primary);white-space:nowrap}
.view-all svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}

.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.latest-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.latest-grid{grid-template-columns:1fr}}

.art-preview{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--tn),box-shadow var(--tn);
}
.art-preview:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.art-preview-img{width:100%;height:190px;object-fit:cover;background:var(--bg-input);display:block}
.art-preview-body{padding:18px;flex-grow:1;display:flex;flex-direction:column}
.art-preview-cat{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--primary);margin-bottom:8px}
.art-preview-title{font-size:1rem;font-weight:700;color:var(--txt-primary);margin-bottom:8px;line-height:1.35;flex-grow:1}
.art-preview-excerpt{font-size:.83rem;color:var(--txt-muted);line-height:1.5}
.art-preview-foot{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.art-read{font-size:.8rem;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:4px}

/* ══ CALCULATOR TOOL PAGES ════════════════════════ */
.page-top{padding-top:calc(var(--header-h) + 32px);margin-bottom:28px}
.back-link{display:inline-flex;align-items:center;gap:7px;font-weight:500;color:var(--txt-muted);margin-bottom:14px;font-size:.9rem}
.back-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.back-link:hover{color:var(--primary)}
.page-title{font-size:clamp(1.7rem,4vw,2.4rem);font-weight:800;margin-bottom:8px}
.page-sub{color:var(--txt-muted);font-size:1rem;max-width:660px;line-height:1.6}

.calc-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:start;margin-bottom:48px}
@media(max-width:900px){.calc-layout{grid-template-columns:1fr}}

.calc-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-sm)}
.calc-card-title{font-size:1.1rem;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}

/* Inputs */
.inp-row{margin-bottom:18px}
.inp-label{display:block;font-weight:600;font-size:.875rem;margin-bottom:7px;color:var(--txt-primary)}
.inp-wrap{position:relative;display:flex;align-items:center}
.inp-field{
  width:100%;height:46px;background:var(--bg-input);
  border:1px solid var(--border);border-radius:var(--r-md);
  padding:0 14px;font-family:var(--font-body);font-size:.95rem;
  color:var(--txt-primary);outline:none;
  transition:all var(--tf);
}
.inp-field:focus{background:var(--bg-input-focus);border-color:var(--border-focus);box-shadow:0 0 0 3px rgba(59,130,246,.1)}
.inp-unit{position:absolute;right:14px;font-size:.82rem;font-weight:500;color:var(--txt-muted);pointer-events:none}
.inp-wrap .inp-field{padding-right:48px}
select.inp-field{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:15px;
  padding-right:36px;
}
.inp-hint{font-size:.78rem;color:var(--txt-muted);margin-top:6px;line-height:1.4}
.toggle-group{display:grid;grid-template-columns:repeat(2,1fr);background:var(--bg-input);border-radius:var(--r-md);padding:4px;border:1px solid var(--border);gap:2px}
.tg-radio{display:none}
.tg-label{display:flex;align-items:center;justify-content:center;height:36px;border-radius:calc(var(--r-md) - 2px);cursor:pointer;font-size:.86rem;font-weight:600;user-select:none;color:var(--txt-secondary);transition:all var(--tf)}
.tg-radio:checked + .tg-label{background:var(--bg-card);color:var(--txt-primary);box-shadow:var(--sh-sm)}

/* Results */
.results-card{
  background:linear-gradient(135deg,rgba(59,130,246,.03),rgba(16,185,129,.03));
  border:2px solid var(--border);box-shadow:var(--sh-md);
}
.res-primary{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);padding:20px;text-align:center;margin-bottom:20px}
.res-val{font-family:var(--font-head);font-size:2.4rem;font-weight:800;color:var(--primary);line-height:1.1;margin-bottom:4px}
.res-unit{font-size:.85rem;font-weight:600;color:var(--txt-muted);text-transform:uppercase;letter-spacing:.5px}
.breakdown{display:flex;flex-direction:column;gap:11px}
.bk-item{display:flex;justify-content:space-between;align-items:center;padding-bottom:11px;border-bottom:1px solid var(--border)}
.bk-item:last-child{border-bottom:none;padding-bottom:0}
.bk-label{font-size:.875rem;color:var(--txt-muted)}
.bk-val{font-weight:700;color:var(--txt-primary);font-size:.95rem}
.cost-box{margin-top:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);padding:16px}
.cost-label{font-size:.8rem;color:var(--txt-muted);margin-bottom:4px}
.cost-range{font-size:1.35rem;font-weight:700;color:var(--secondary);margin:4px 0}
.cost-note{font-size:.75rem;color:var(--txt-muted);line-height:1.4}

/* SEO content section */
.seo-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-xl);padding:40px;margin-bottom:40px}
.seo-h2{font-size:1.65rem;font-weight:800;margin-bottom:16px}
.seo-body{font-size:.95rem;color:var(--txt-secondary);line-height:1.75}
.seo-body p{margin-bottom:16px}
.seo-body h3{font-size:1.1rem;color:var(--txt-primary);margin:24px 0 10px}
.seo-body ul,.seo-body ol{margin-bottom:16px}
.seo-body li{margin-bottom:6px}
.seo-body a{color:var(--primary);font-weight:500}
.seo-body strong{color:var(--txt-primary)}
.seo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:24px}
@media(max-width:640px){.seo-grid{grid-template-columns:1fr}}
.seo-card{background:var(--bg-input);border-radius:var(--r-md);padding:18px}
.seo-card h4{font-size:1rem;margin-bottom:8px}
.seo-card p{font-size:.86rem;color:var(--txt-muted);line-height:1.5}

/* FAQ */
.faq-wrap{margin-top:28px}
.faq-h3{font-size:1.2rem;font-weight:700;margin-bottom:14px}
.faq-item{border:1px solid var(--border);border-radius:var(--r-md);margin-bottom:10px;overflow:hidden}
.faq-q{
  width:100%;padding:15px 18px;background:none;border:none;
  text-align:left;font-family:var(--font-head);font-size:.95rem;
  font-weight:600;color:var(--txt-primary);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-q::after{content:'+';font-size:1.15rem;color:var(--txt-muted);transition:transform var(--tf);flex-shrink:0}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{
  padding:0 18px;max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease),padding .2s;
  font-size:.88rem;line-height:1.65;color:var(--txt-secondary);
}
.faq-item.open .faq-a{max-height:400px;padding-bottom:15px}

/* Related */
.related-section{margin-bottom:64px}
.related-h2{font-size:1.3rem;font-weight:700;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}

/* ══ BLOG INDEX ════════════════════════════════════ */
.blog-hero{padding:calc(var(--header-h) + 56px) 0 40px;text-align:center}
.blog-hero h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:12px}
.blog-hero p{color:var(--txt-muted);font-size:1.05rem;max-width:560px;margin:0 auto}

.blog-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(310px,1fr));
  gap:26px;padding-bottom:80px;
}
.blog-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--tn),box-shadow var(--tn);
}
.blog-card:hover{transform:translateY(-5px);box-shadow:var(--sh-lg)}
.blog-card-img{width:100%;height:205px;object-fit:cover;display:block;background:var(--bg-input)}
.blog-card-body{padding:20px;flex-grow:1;display:flex;flex-direction:column}
.blog-card-cat{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--primary);margin-bottom:8px}
.blog-card-title{font-size:1.05rem;font-weight:700;color:var(--txt-primary);margin-bottom:8px;line-height:1.35;flex-grow:1}
.blog-card-excerpt{font-size:.83rem;color:var(--txt-muted);line-height:1.5;margin-bottom:14px}
.blog-card-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding-top:12px;margin-top:auto}
.blog-date{font-size:.76rem;color:var(--txt-muted)}
.blog-read{font-size:.8rem;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:4px}
.blog-card.pillar{border-color:var(--primary);box-shadow:0 0 0 2px rgba(59,130,246,.12)}
.pillar-tag{
  display:inline-block;padding:3px 9px;border-radius:var(--r-full);
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px;
}

/* ══ ARTICLE POST PAGE ════════════════════════════ */
.article-wrap{padding:calc(var(--header-h) + 40px) 0 80px}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
@media(max-width:1040px){.article-layout{grid-template-columns:1fr}}

/* Article main */
.art-feat-img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-xl);margin-bottom:28px;display:block;background:var(--bg-input)}
@media(max-width:768px){.art-feat-img{height:220px}}
.art-meta{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.art-cat-pill{padding:3px 12px;border-radius:var(--r-full);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.art-cat-pill.cat-guides{background:rgba(59,130,246,.1);color:var(--primary)}
.art-cat-pill.cat-mulch,.art-cat-pill.cat-garden{background:rgba(16,185,129,.1);color:var(--txt-garden)}
.art-cat-pill.cat-concrete,.art-cat-pill.cat-gravel,.art-cat-pill.cat-masonry{background:rgba(249,115,22,.1);color:var(--txt-masonry)}
.art-cat-pill.cat-tile,.art-cat-pill.cat-flooring{background:rgba(139,92,246,.1);color:var(--txt-flooring)}
.art-date,.art-rt{font-size:.82rem;color:var(--txt-muted)}
.art-title{font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:800;line-height:1.2;margin-bottom:18px;letter-spacing:-.5px}
.art-intro{font-size:1.05rem;color:var(--txt-secondary);line-height:1.75;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--border)}

/* Article body */
.art-body{font-size:.98rem;color:var(--txt-secondary);line-height:1.8}
.art-body h2{font-size:1.45rem;margin:36px 0 14px;color:var(--txt-primary)}
.art-body h3{font-size:1.15rem;margin:28px 0 10px;color:var(--txt-primary)}
.art-body p{margin-bottom:18px}
.art-body ul,.art-body ol{margin-bottom:18px}
.art-body li{margin-bottom:7px}
.art-body a{color:var(--primary);font-weight:500}
.art-body a:hover{text-decoration:underline}
.art-body strong{color:var(--txt-primary)}

/* Inline image block */
.art-img-block{margin:32px 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border)}
.art-img-block img{width:100%;height:300px;object-fit:cover;display:block;background:var(--bg-input)}
.art-img-caption{padding:9px 14px;background:var(--bg-input);font-size:.8rem;color:var(--txt-muted);text-align:center;font-style:italic}

/* Tip box */
.art-tip{
  background:linear-gradient(135deg,rgba(59,130,246,.05),rgba(16,185,129,.03));
  border-left:4px solid var(--primary);border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;margin:26px 0;font-size:.93rem;color:var(--txt-secondary);
}
.art-tip strong{color:var(--primary)}

/* Calculator CTA box */
.art-calc-cta{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  border-radius:var(--r-lg);padding:26px 28px;margin:36px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.art-calc-cta h3{color:#fff;font-size:1.1rem;margin-bottom:4px}
.art-calc-cta p{color:rgba(255,255,255,.85);font-size:.875rem}
.art-calc-cta a{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--primary);
  padding:11px 22px;border-radius:var(--r-full);
  font-weight:700;font-size:.875rem;white-space:nowrap;flex-shrink:0;
  transition:transform var(--tf),box-shadow var(--tf);
}
.art-calc-cta a:hover{transform:scale(1.03);box-shadow:0 6px 20px rgba(0,0,0,.15)}

/* Pillar link box */
.pillar-box{border:2px solid var(--primary);border-radius:var(--r-md);padding:18px;margin:28px 0;display:flex;gap:12px;align-items:flex-start;background:rgba(59,130,246,.04)}
.pillar-box-icon{font-size:1.4rem;flex-shrink:0}
.pillar-box-lbl{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px;color:var(--primary);margin-bottom:4px}
.pillar-box a{color:var(--txt-primary);font-weight:600;font-size:.95rem}
.pillar-box a:hover{color:var(--primary)}

/* Next article */
.next-block{margin-top:52px;padding-top:36px;border-top:2px solid var(--border)}
.next-lbl{font-size:.75rem;text-transform:uppercase;letter-spacing:.7px;color:var(--txt-muted);font-weight:700;margin-bottom:12px}
.next-btn{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:18px 22px;cursor:pointer;text-decoration:none;
  transition:all var(--tn);
}
.next-btn:hover{border-color:var(--primary);box-shadow:var(--sh-glow);transform:translateX(5px)}
.next-info{flex:1}
.next-cat{font-size:.72rem;color:var(--primary);font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px}
.next-title{font-size:1rem;font-weight:700;color:var(--txt-primary);line-height:1.3}
.next-arrow{color:var(--primary);flex-shrink:0}
.next-arrow svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}

/* Article Tags */
.tags-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:28px}
.tag{padding:4px 12px;border-radius:var(--r-full);background:var(--bg-input);border:1px solid var(--border);font-size:.77rem;color:var(--txt-muted);transition:all var(--tf)}
.tag:hover{border-color:var(--primary);color:var(--primary)}

/* Sidebar */
.sidebar{position:sticky;top:calc(var(--header-h) + 20px)}
.sidebar-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;margin-bottom:20px}
.sidebar-title{font-size:.9rem;font-weight:700;color:var(--txt-primary);margin-bottom:14px;padding-bottom:11px;border-bottom:1px solid var(--border)}
.sb-calc{
  display:flex;align-items:center;gap:11px;padding:10px;
  border-radius:var(--r-sm);background:var(--bg-input);border:1px solid var(--border);
  margin-bottom:8px;text-decoration:none;transition:all var(--tf);
}
.sb-calc:hover{border-color:var(--primary);background:rgba(59,130,246,.05)}
.sb-calc-txt strong{display:block;font-size:.84rem;font-weight:600;color:var(--txt-primary)}
.sb-calc-txt small{font-size:.76rem;color:var(--txt-muted)}
.sb-ad{
  border:1px dashed var(--border);border-radius:var(--r-md);
  min-height:250px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--txt-muted);font-size:.75rem;font-weight:600;text-align:center;
  background:var(--bg-input);padding:16px;gap:6px;
}

/* ══ POLICY PAGES ══════════════════════════════════ */
.policy-wrap{padding:calc(var(--header-h) + 48px) 0 80px;max-width:800px;margin:0 auto}
.policy-wrap h1{font-size:2rem;margin-bottom:8px}
.policy-date{font-size:.85rem;color:var(--txt-muted);margin-bottom:32px}
.policy-body{font-size:.95rem;line-height:1.8;color:var(--txt-secondary)}
.policy-body h2{font-size:1.2rem;font-weight:700;color:var(--txt-primary);margin:28px 0 10px}
.policy-body p{margin-bottom:14px}
.policy-body ul{margin-bottom:14px}
.policy-body li{margin-bottom:6px}

/* ══ FOOTER ════════════════════════════════════════ */
.site-footer{background:var(--bg-card);border-top:1px solid var(--border);padding:52px 0 28px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-about .footer-desc{font-size:.875rem;color:var(--txt-muted);margin-top:12px;max-width:300px;line-height:1.6}
.footer-col-title{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--txt-primary);margin-bottom:16px}
.footer-links{list-style:none;padding:0}
.footer-links li{margin-bottom:9px}
.footer-links a{color:var(--txt-muted);font-size:.875rem;transition:color var(--tf)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--border);padding-top:22px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.copyright{font-size:.82rem;color:var(--txt-muted)}
.footer-bottom-links{display:flex;gap:18px}
.footer-bottom-links a{font-size:.82rem;color:var(--txt-muted);transition:color var(--tf)}
.footer-bottom-links a:hover{color:var(--primary)}

/* Embed mode */
body.embed .site-header,.body.embed .page-top .back-link,.embed .seo-section,.embed .related-section,.embed .site-footer{display:none!important}
body.embed .page-top{padding-top:0!important}