/*
Theme Name: 5iBuild Global
Theme URI: https://5ibuild.5itech.in/
Author: 5iTech
Description: Professional global construction and civil engineering calculator WordPress theme.
Version: 5.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: fivebuild
*/

:root{
  --fb-primary:#155eef;--fb-primary-dark:#0b3b9e;--fb-ink:#0b1220;--fb-text:#344054;--fb-muted:#667085;
  --fb-bg:#f7f9fc;--fb-card:#fff;--fb-border:#e4e7ec;--fb-radius:18px;
  --fb-shadow:0 10px 35px rgba(16,24,40,.08);--fb-max:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fb-bg);color:var(--fb-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.65}
img{max-width:100%;height:auto}
a{color:var(--fb-primary);text-decoration:none}
a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:12px;top:12px;z-index:2000;background:#fff;color:#0b1220;border:2px solid var(--fb-primary);padding:8px 12px;border-radius:8px;font-weight:800;transform:translateY(-150%);box-shadow:var(--fb-shadow)}
.skip-link:focus{transform:none}
.site-shell{min-height:100vh;display:flex;flex-direction:column}
.container{width:min(var(--fb-max),calc(100% - 32px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--fb-border)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--fb-ink);font-weight:900;font-size:1.35rem;letter-spacing:-.03em}
.brand:hover{text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--fb-primary),#6d5dfc);box-shadow:0 8px 20px rgba(21,94,239,.25);font-weight:900}
.brand small{display:block;color:var(--fb-muted);font-size:.62rem;line-height:1;text-transform:uppercase;letter-spacing:.13em;font-weight:800}
.main-nav ul{display:flex;align-items:center;gap:24px;list-style:none;padding:0;margin:0}
.main-nav a{color:#344054;font-size:.94rem;font-weight:700}
.main-nav a:hover{color:var(--fb-primary);text-decoration:none}
.menu-toggle{display:none;border:1px solid var(--fb-border);background:#fff;border-radius:12px;padding:9px 11px;color:var(--fb-ink)}
.hero{padding:80px 0 60px;background:radial-gradient(circle at 82% 12%,rgba(21,94,239,.12),transparent 32%),linear-gradient(180deg,#fff,#f7f9fc)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 11px;border-radius:999px;background:#eef4ff;color:#174ea6;font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.hero h1{font-size:clamp(2.35rem,5vw,4.6rem);line-height:1.04;letter-spacing:-.055em;color:var(--fb-ink);margin:18px 0}
.hero h1 span{color:var(--fb-primary)}
.hero p.lead{font-size:clamp(1.05rem,2vw,1.25rem);color:#475467;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font-weight:800;transition:.2s}
.btn-primary{background:var(--fb-primary);color:#fff;box-shadow:0 8px 20px rgba(21,94,239,.22)}
.btn-primary:hover{background:var(--fb-primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--fb-ink);border:1px solid var(--fb-border)}
.btn-secondary:hover{text-decoration:none;border-color:#b7c4d8}
.hero-panel{background:#fff;border:1px solid var(--fb-border);border-radius:24px;padding:24px;box-shadow:var(--fb-shadow)}
.search-box{display:flex;gap:10px;background:#f8fafc;border:1px solid var(--fb-border);padding:8px;border-radius:15px}
.search-box input{min-width:0;flex:1;border:0;outline:0;background:transparent;padding:10px 8px;color:var(--fb-ink)}
.search-box button{border:0;background:var(--fb-ink);color:#fff;border-radius:10px;padding:10px 14px;font-weight:800}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px}
.stat{padding:16px;border:1px solid var(--fb-border);border-radius:15px;background:#fff}
.stat strong{display:block;color:var(--fb-ink);font-size:1.5rem}
.stat span{font-size:.82rem;color:var(--fb-muted)}
.section{padding:72px 0}
.section-alt{background:#fff;border-block:1px solid var(--fb-border)}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:28px}
.section-head h2{margin:0;color:var(--fb-ink);font-size:clamp(1.7rem,3vw,2.45rem);letter-spacing:-.035em}
.section-head p{margin:7px 0 0;color:var(--fb-muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--fb-border);border-radius:var(--fb-radius);padding:22px;box-shadow:0 5px 18px rgba(16,24,40,.04);transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--fb-shadow);border-color:#cbd5e1}
.icon{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;background:#eef4ff;color:var(--fb-primary);font-size:1.25rem}
.card h3{margin:16px 0 7px;color:var(--fb-ink);font-size:1.12rem}
.card p{margin:0;color:var(--fb-muted);font-size:.93rem}
.card-link{display:inline-flex;margin-top:16px;font-weight:800;font-size:.9rem}
.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.category{display:block;padding:18px;border:1px solid var(--fb-border);border-radius:16px;background:#fff;color:var(--fb-ink);transition:.2s}
.category:hover{color:var(--fb-primary);border-color:#b8c7e6;box-shadow:var(--fb-shadow);text-decoration:none;transform:translateY(-2px)}
.category strong{display:block;margin-bottom:5px}
.category span{color:var(--fb-muted);font-size:.86rem}
.breadcrumbs{padding:20px 0 0;color:var(--fb-muted);font-size:.85rem}
.breadcrumbs a{font-weight:700}
.page-hero{padding:52px 0 32px;background:#fff;border-bottom:1px solid var(--fb-border)}
.page-hero h1{margin:0;color:var(--fb-ink);font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.045em}
.page-hero p{max-width:850px;color:var(--fb-muted);font-size:1.05rem}
.content-wrap{padding:42px 0 80px}
.prose{max-width:900px}
.prose h2,.prose h3{color:var(--fb-ink);margin-top:34px}
.prose p,.prose li{font-size:1rem}
.prose ul{padding-left:22px}
.calculator-shell{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:start}
.calc-panel{background:#fff;border:1px solid var(--fb-border);border-radius:22px;padding:24px;box-shadow:var(--fb-shadow)}
.calc-panel h2{margin:0 0 18px;color:var(--fb-ink)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field label{display:block;font-weight:800;color:#344054;font-size:.9rem;margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:12px 13px;background:#fff;color:var(--fb-ink);outline:0}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--fb-primary);box-shadow:0 0 0 4px rgba(21,94,239,.11)}
.form-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.result-panel{background:linear-gradient(145deg,#0b1220,#132b54);color:#fff;border:0}
.result-panel h2{color:#fff}
.result-main{font-size:clamp(2rem,5vw,3.4rem);font-weight:900;letter-spacing:-.04em;margin:10px 0 20px}
.result-unit{color:#cbd5e1;font-size:1rem}
.result-list{margin:0;padding:0;list-style:none}
.result-list li{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.13)}
.result-list li:last-child{border-bottom:0}
.result-list strong{color:#fff}
.note{margin-top:16px;padding:14px;border-radius:13px;background:#f8fafc;border:1px solid var(--fb-border);color:var(--fb-muted);font-size:.87rem}
.result-panel .note{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.1);color:#cbd5e1}
.error{display:none;margin-top:12px;padding:12px;border-radius:11px;background:#fff1f0;color:#b42318;font-weight:700}
.calc-tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.calc-tools button{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:10px;padding:9px 12px;font-weight:700}
.disclaimer{margin-top:28px;padding:18px;border-left:4px solid #f79009;background:#fffaeb;border-radius:10px;color:#7a4b00}
.formula{padding:18px;border-radius:13px;background:#f8fafc;border:1px solid var(--fb-border);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#0b1220;white-space:pre-wrap}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.ad-slot{min-height:90px;margin:28px auto;display:flex;align-items:center;justify-content:center;color:#98a2b3;background:#fff;border:1px dashed #d0d5dd;border-radius:12px;font-size:.78rem}
.notice{padding:14px 16px;border:1px solid #b2ddff;background:#eff8ff;border-radius:12px;color:#175cd3}
.kicker{display:block;color:var(--fb-primary);font-weight:800;text-transform:uppercase;font-size:.78rem;letter-spacing:.08em;margin-bottom:6px}
.no-results{display:none;color:var(--fb-muted);margin-top:15px}
.site-footer{margin-top:auto;background:#0b1220;color:#cbd5e1;padding:55px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:35px}
.site-footer h3,.site-footer h4{color:#fff;margin-top:0}
.site-footer p{color:#98a2b3;font-size:.9rem}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:8px 0}
.site-footer a{color:#cbd5e1}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:18px;font-size:.82rem;color:#98a2b3;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}.card-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .main-nav{position:absolute;left:16px;right:16px;top:66px;background:#fff;border:1px solid var(--fb-border);border-radius:16px;padding:12px;box-shadow:var(--fb-shadow);display:none}
  .main-nav.is-open{display:block}.main-nav ul{display:block}.main-nav li{padding:9px 4px}.menu-toggle{display:block}
}
@media(max-width:720px){
  .container{width:min(var(--fb-max),calc(100% - 22px))}
  .hero{padding:55px 0 42px}.section{padding:52px 0}.card-grid,.calculator-shell{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}.category-grid,.footer-grid,.related-grid{grid-template-columns:1fr 1fr}
  .section-head{display:block}.section-head .btn{margin-top:15px}
}
@media(max-width:480px){
  .category-grid,.footer-grid,.related-grid{grid-template-columns:1fr}.header-inner{min-height:64px}.brand{font-size:1.15rem}.brand-mark{width:34px;height:34px}
  .hero-actions .btn{width:100%}.search-box{display:block}.search-box button{width:100%;margin-top:7px}
  .calc-panel{padding:18px}.stat-grid{grid-template-columns:1fr 1fr}.result-list li{font-size:.9rem}
}
@media print{
  .site-header,.site-footer,.menu-toggle,.main-nav,.hero-actions,.calc-tools,.ad-slot{display:none!important}
  .page-hero{border:0}.content-wrap,.section{padding:18px 0}
  body{background:#fff}.calc-panel{box-shadow:none}
}