:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --surface-3:#eef3f9;
  --ink:#102338;
  --muted:#65778b;
  --line:#dbe4ee;
  --line-strong:#c9d6e3;
  --header:#07111f;
  --header-2:#0b1728;
  --navy:#173a61;
  --blue:#2563eb;
  --cyan:#16b8e9;
  --violet:#7c3aed;
  --green:#0f9f74;
  --amber:#d97706;
  --danger:#dc2626;
  --accent-gradient:linear-gradient(135deg,#1ea7fd 0%,#4f67f6 50%,#8b5cf6 100%);
  --shadow-xs:0 4px 14px rgba(15,35,56,.045);
  --shadow-sm:0 12px 30px rgba(15,35,56,.065);
  --shadow-md:0 24px 60px rgba(15,35,56,.11);
  --radius-sm:12px;
  --radius-md:18px;
  --radius-lg:24px;
  --radius-xl:30px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI Variable","Segoe UI",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Roboto,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{color:inherit}
img,svg{display:block}
::selection{background:rgba(79,103,246,.18);color:#0d2034}
:focus-visible{outline:3px solid rgba(56,189,248,.34);outline-offset:2px}
.container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
main{min-height:55vh}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(7,17,31,.94);border-bottom:1px solid rgba(148,163,184,.15);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 10px 34px rgba(1,8,18,.12)}
.header-accent{height:2px;background:linear-gradient(90deg,#10bce8 0%,#4f67f6 46%,#9a54f5 78%,#f472b6 100%);opacity:.95}
.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:13px;min-width:0;flex-shrink:0}
.brand-mark{width:46px;height:46px;display:grid;place-items:center;flex:0 0 46px;overflow:hidden;border-radius:13px;background:#fff;box-shadow:0 10px 28px rgba(2,8,23,.28)}
.brand-mark img{width:46px;height:46px;object-fit:cover}
.brand-copy{min-width:0}.brand strong,.brand small{display:block}.brand strong{color:#f8fbff;font-size:16px;letter-spacing:-.015em}.brand small{max-width:310px;margin-top:1px;color:#8ea3ba;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
.main-nav>a,.nav-dropdown-trigger{height:43px;display:inline-flex;align-items:center;gap:7px;padding:0 14px;border:1px solid transparent;border-radius:12px;background:transparent;color:#c8d5e3;font-size:13px;font-weight:650;cursor:pointer;transition:background .18s ease,border-color .18s ease,color .18s ease}
.main-nav>a:hover,.nav-dropdown-trigger:hover,.nav-item:focus-within .nav-dropdown-trigger{background:rgba(255,255,255,.065);border-color:rgba(255,255,255,.08);color:#fff}
.nav-dropdown-trigger svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .18s ease}.has-dropdown.dropdown-open .nav-dropdown-trigger svg,.has-dropdown:hover .nav-dropdown-trigger svg{transform:rotate(180deg)}
.nav-item{position:relative}
.has-dropdown:after{content:"";position:absolute;left:50%;top:100%;width:1030px;height:18px;transform:translateX(-50%);pointer-events:none}.has-dropdown:hover:after,.has-dropdown:focus-within:after{pointer-events:auto}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.11);border-radius:12px;background:rgba(255,255,255,.055);cursor:pointer}.menu-toggle span{display:block;width:18px;height:2px;margin:4px auto;border-radius:99px;background:#d6e2ee}

.dropdown-menu.premium-mega-menu{position:absolute;left:50%;top:calc(100% + 14px);width:min(1030px,calc(100vw - 40px));padding:18px;border:1px solid rgba(148,163,184,.18);border-radius:24px;background:linear-gradient(150deg,rgba(10,23,40,.985),rgba(7,16,29,.99));box-shadow:0 34px 90px rgba(0,7,18,.36);backdrop-filter:blur(26px);-webkit-backdrop-filter:blur(26px);opacity:0;visibility:hidden;transform:translate(-50%,-6px);pointer-events:none;transition:opacity .15s ease,transform .15s ease,visibility .15s ease}
.has-dropdown:hover .dropdown-menu.premium-mega-menu,.has-dropdown:focus-within .dropdown-menu.premium-mega-menu,.has-dropdown.dropdown-open .dropdown-menu.premium-mega-menu{opacity:1;visibility:visible;transform:translate(-50%,0);pointer-events:auto}
.mega-menu-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:5px 7px 16px;border-bottom:1px solid rgba(148,163,184,.15)}
.mega-kicker{display:block;color:#7390ab;font-size:9px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}.mega-menu-head strong{display:block;margin-top:4px;color:#f1f6fb;font-size:17px;letter-spacing:-.02em}.mega-menu-head>a{display:inline-flex;align-items:center;gap:8px;padding:9px 11px;border:1px solid rgba(148,163,184,.18);border-radius:11px;color:#a9c5df;font-size:11px;font-weight:750}.mega-menu-head>a:hover{background:rgba(255,255,255,.06);color:#fff}
.mega-menu-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;padding:14px 0 10px}.dropdown-menu .mega-menu-grid>a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 11px;border:1px solid transparent;border-radius:12px;color:#c4d2df;font-size:12px;font-weight:650;transition:.18s ease}.dropdown-menu .mega-menu-grid>a:hover{background:linear-gradient(135deg,rgba(37,99,235,.15),rgba(124,58,237,.12));border-color:rgba(96,165,250,.16);color:#fff;transform:translateY(-1px)}.mega-menu-grid>a small{color:#71889e;font-size:9px;font-weight:750;white-space:nowrap}.mega-menu-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:13px 7px 2px;border-top:1px solid rgba(148,163,184,.13);color:#728ba2;font-size:10px}.mega-menu-foot>a{color:#a8c9e7;font-weight:750}

/* Common buttons, search and sections */
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 18px;border:1px solid transparent;border-radius:13px;font-size:13px;font-weight:750;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease}.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,#1f5fdb,#5b55e7);color:#fff;box-shadow:0 12px 28px rgba(57,74,202,.22)}.btn-primary:hover{box-shadow:0 16px 34px rgba(57,74,202,.28)}
.btn-light{background:#fff;border-color:var(--line);color:#27435e}.btn-light:hover{border-color:#c6d3e1;background:#f8fbfe}
.search-wrap{position:relative}.search-box{width:100%;height:52px;padding:0 76px 0 16px;border:1px solid var(--line-strong);border-radius:14px;background:#fff;color:var(--ink);font-size:14px;outline:none;box-shadow:var(--shadow-xs);transition:border-color .18s ease,box-shadow .18s ease}.search-box:focus{border-color:#87a8df;box-shadow:0 0 0 4px rgba(79,103,246,.08),var(--shadow-sm)}.search-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#60758a;font-size:12px;font-weight:750}
.section{padding:44px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-head h2{margin:10px 0 0;color:#102b45;font-size:34px;line-height:1.15;letter-spacing:-.035em}.section-head p{margin:7px 0 0;color:var(--muted)}.text-link{color:#325b83;font-size:13px;font-weight:750}
.section-kicker{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border:1px solid #d8e5f0;border-radius:999px;background:#eff5fb;color:#385c7c;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.section-kicker:before{content:"";width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,#22c1f1,#7560ee);box-shadow:0 0 0 4px rgba(99,102,241,.08)}

/* Page heroes */
.page-hero{position:relative;overflow:hidden;padding:54px 0 46px;background:radial-gradient(circle at 78% 22%,rgba(99,102,241,.18),transparent 27%),radial-gradient(circle at 8% 30%,rgba(14,165,233,.11),transparent 24%),linear-gradient(135deg,#07111f 0%,#0b1d31 54%,#101c36 100%);border-bottom:1px solid rgba(148,163,184,.13)}
.page-hero:after{content:"";position:absolute;inset:0;opacity:.25;pointer-events:none;background-image:linear-gradient(rgba(148,163,184,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.08) 1px,transparent 1px);background-size:40px 40px;mask-image:linear-gradient(to bottom,black,transparent 95%)}
.page-hero>.container{position:relative;z-index:1}.breadcrumb{margin-bottom:14px;color:#7890a7;font-size:12px}.breadcrumb a{color:#a8c1d7}.breadcrumb a:hover{color:#fff}.page-hero .section-kicker{border-color:rgba(96,165,250,.18);background:rgba(37,99,235,.1);color:#b9d3eb}.page-hero h1{max-width:860px;margin:15px 0 11px;color:#f5f9fd;font-size:clamp(34px,4.2vw,52px);line-height:1.08;letter-spacing:-.045em}.page-hero p{max-width:800px;margin:0;color:#9fb1c3;font-size:16px;line-height:1.72}

/* Cards and lists */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.tools-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.category-card,.tool-card,.toolbar-card,.calc-card,.side-card,.content-card,.static-card,.related-category-section{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-xs)}
.category-card,.tool-card{transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.category-card:hover,.tool-card:hover{transform:translateY(-3px);border-color:#c5d4e4;box-shadow:var(--shadow-sm)}
.category-card{padding:22px}.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.cat-icon,.tool-icon{position:relative;min-width:48px;width:48px;height:48px;display:grid;place-items:center;border:1px solid #d8e4f0;border-radius:14px;background:linear-gradient(145deg,#f7fbff,#edf4fb);overflow:hidden;color:transparent;font-size:0}.cat-icon:before,.tool-icon:before{content:"";width:18px;height:18px;border:2px solid #4f67f6;border-radius:6px;box-shadow:7px 7px 0 -4px #18b7e7}.card-count{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border:1px solid var(--line);border-radius:999px;background:#f7f9fc;color:#718397;font-size:10px;font-weight:750}.category-card h3{margin:18px 0 7px;color:#17334e;font-size:19px;letter-spacing:-.02em}.category-card p,.tool-card p{margin:0;color:#6f8194;font-size:13px;line-height:1.62}.cat-meta{margin-top:15px;color:#365f88;font-size:12px;font-weight:750}
.tool-card{min-height:130px;display:flex;gap:14px;align-items:flex-start;padding:18px;position:relative;overflow:hidden}.tool-card:after{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:linear-gradient(90deg,transparent,#38bdf8 35%,#6366f1 65%,transparent);opacity:0;transition:opacity .18s ease}.tool-card:hover:after{opacity:1}.tool-content{min-width:0;flex:1}.tool-category{display:inline-block;margin-bottom:5px;color:#52708e;font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.tool-card h3{margin:0 0 6px;color:#1b354f;font-size:16px;line-height:1.35;letter-spacing:-.015em}.tool-card .arrow{align-self:center;margin-left:auto;color:#66809a;font-size:11px;font-weight:750;white-space:nowrap}
.empty{display:none;padding:30px;text-align:center;color:var(--muted)}

/* All tools toolbar */
.toolbar-card{position:relative;padding:19px;margin-bottom:22px;background:linear-gradient(180deg,#fff,#fbfdff)}.toolbar-card:before{content:"";position:absolute;inset:0 auto 0 0;width:3px;border-radius:24px 0 0 24px;background:var(--accent-gradient)}.toolbar-search{margin-bottom:16px}.all-tools-toolbar{display:flex;flex-wrap:wrap;gap:8px}.chip{min-height:34px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:#f7f9fc;color:#526a82;font-size:10px;font-weight:750;cursor:pointer;transition:.16s ease}.chip:hover{border-color:#becfe0;background:#eef4fb;color:#254d75}.chip.active{border-color:transparent;background:linear-gradient(135deg,#225fda,#6555e8);color:#fff;box-shadow:0 7px 18px rgba(65,81,205,.18)}

/* Category page */
.category-summary-bar{display:grid;grid-template-columns:150px 1fr auto;gap:22px;align-items:center;margin-bottom:24px;padding:18px 20px;border:1px solid #d9e4ef;border-radius:20px;background:linear-gradient(120deg,#f8fbff,#f9f7ff 55%,#fff);box-shadow:var(--shadow-xs)}.category-summary-bar>div strong,.category-summary-bar>div span{display:block}.category-summary-bar>div strong{color:#244f78;font-size:27px;line-height:1}.category-summary-bar>div span{margin-top:4px;color:#7b8d9f;font-size:10px}.category-summary-bar p{margin:0;color:#60758a;font-size:12px}.category-summary-bar>a{color:#365f88;font-size:11px;font-weight:800}
.related-category-section{margin-top:38px;padding:28px}.related-category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.related-category-grid>a{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px;border:1px solid #e2e9f0;border-radius:15px;background:#fafcfe;transition:.18s ease}.related-category-grid>a:hover{transform:translateY(-2px);border-color:#cbd8e5;box-shadow:var(--shadow-xs)}.related-category-grid>a span{min-width:0}.related-category-grid strong,.related-category-grid small{display:block}.related-category-grid strong{color:#213d58;font-size:13px}.related-category-grid small{margin-top:3px;color:#7b8d9e;font-size:10px;line-height:1.45}.related-category-grid b{flex:0 0 auto;color:#466985;font-size:10px}

/* Calculator */
.calc-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:22px;padding:30px 0 58px}.calc-card,.side-card,.content-card{padding:24px}.calc-card{position:relative;overflow:hidden;border-color:#d6e2ed;box-shadow:0 18px 48px rgba(20,42,65,.07)}.calc-card:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent-gradient)}
.calc-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:-4px 0 22px;padding-bottom:15px;border-bottom:1px solid #e7edf3}.calc-panel-status{display:flex;align-items:center;gap:8px;color:#284963;font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.calc-status-dot{width:7px;height:7px;border-radius:50%;background:#17b785;box-shadow:0 0 0 5px rgba(23,183,133,.09),0 0 13px rgba(23,183,133,.3)}.calc-panel-head small{color:#8192a3;font-size:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{color:#2a435a;font-size:11px;font-weight:750}.field input,.field select,.field textarea{width:100%;height:48px;padding:0 13px;border:1px solid #cedae6;border-radius:12px;background:#fbfcfe;color:#183149;font-size:13px;outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.field select{cursor:pointer}.field textarea{min-height:150px;height:auto;padding:13px;resize:vertical;line-height:1.55}.field input:hover,.field select:hover,.field textarea:hover{border-color:#bacbdc;background:#fff}.field input:focus,.field select:focus,.field textarea:focus{border-color:#7899df;background:#fff;box-shadow:0 0 0 4px rgba(79,103,246,.075)}.field small{color:#7b8d9f;font-size:10px;line-height:1.5}.calc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:19px}
.result-box{display:none;position:relative;overflow:hidden;margin-top:22px;padding:22px;border:1px solid rgba(96,165,250,.18);border-radius:19px;background:radial-gradient(circle at 88% 8%,rgba(124,58,237,.2),transparent 30%),linear-gradient(140deg,#0b1c30,#102846 62%,#15284b);color:#fff;box-shadow:0 20px 46px rgba(11,28,48,.16)}.result-box.show{display:block}.result-box:after{content:"";position:absolute;inset:0;opacity:.18;pointer-events:none;background-image:linear-gradient(rgba(148,163,184,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.08) 1px,transparent 1px);background-size:28px 28px}.result-label,.result-main,.result-grid{position:relative;z-index:1}.result-label{color:#8ecbf3;font-size:9px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.result-main{margin-top:5px;color:#fff;font-size:34px;font-weight:800;letter-spacing:-.04em}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}.result-item{padding:12px;border:1px solid rgba(148,163,184,.14);border-radius:12px;background:rgba(255,255,255,.06)}.result-item small,.result-item strong{display:block}.result-item small{color:#95abc0;font-size:9px}.result-item strong{margin-top:3px;color:#f5f9fd;font-size:12px}
.side-card{height:max-content}.side-head h3{margin:8px 0 0;color:#1a3853;font-size:19px;letter-spacing:-.02em}.side-list{display:grid;gap:8px;margin-top:15px}.side-list a{padding:11px 12px;border:1px solid #e1e8ef;border-radius:12px;background:#f8fafc;color:#38536c;font-size:11px;font-weight:650;transition:.16s ease}.side-list a:hover{border-color:#c9d7e4;background:#eef4fb;color:#1d4d78}.notice{margin-top:16px;padding:13px;border:1px solid #efdfba;border-radius:13px;background:#fff9ec;color:#82601b;font-size:10px;line-height:1.55}
.content-card{margin-top:20px}.content-card h2{margin-top:0;color:#17334e;font-size:25px;letter-spacing:-.025em}.content-card p,.content-card li{color:#566c80}.content-card ul{padding-left:20px}

/* Rich content */
.rich-content-card{padding:30px}.content-intro h2{margin:10px 0;color:#17334e;font-size:29px;letter-spacing:-.035em}.content-intro p{margin:0;color:#5b7084;font-size:14px;line-height:1.8}.content-section{margin-top:27px;padding-top:23px;border-top:1px solid #e6edf3}.content-section h3,.info-panel h3{margin:0 0 11px;color:#213c56;font-size:18px;letter-spacing:-.02em}.guide-steps{list-style:none;counter-reset:guide;padding:0;margin:0;display:grid;gap:10px}.guide-steps li{counter-increment:guide;position:relative;min-height:44px;padding:11px 13px 11px 50px;border:1px solid #e2eaf1;border-radius:13px;background:#fafbfd;color:#53697e;font-size:12px}.guide-steps li:before{content:counter(guide);position:absolute;left:11px;top:9px;width:27px;height:27px;display:grid;place-items:center;border-radius:8px;background:linear-gradient(135deg,#245fdb,#7254e7);color:#fff;font-size:10px;font-weight:800;box-shadow:0 6px 14px rgba(72,74,204,.18)}.content-two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}.info-panel{padding:19px;border:1px solid #e0e8f0;border-radius:17px;background:#f8fafc}.formula-panel{background:linear-gradient(180deg,#f5f9ff,#f9fbff);border-color:#d9e7f5}.example-panel{background:linear-gradient(180deg,#fff8f2,#fffdf9);border-color:#f0e1d4}.info-panel-label{display:block;margin-bottom:7px;color:#6d8398;font-size:9px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.info-panel p{margin:0;color:#586d80;font-size:12px;line-height:1.7}.compact-info-grid{margin-top:4px}.mini-content-section{margin-top:19px}.check-list,.note-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.check-list li,.note-list li{position:relative;padding-left:23px;color:#586d80;font-size:12px;line-height:1.55}.check-list li:before{content:"✓";position:absolute;left:0;color:#118060;font-weight:900}.note-list li:before{content:"•";position:absolute;left:4px;top:-1px;color:#bd771f;font-size:18px}.rich-content-card>.notice{margin-top:27px}

/* Internal links */
.internal-links-card{padding:28px}.internal-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:18px}.internal-section-head h2{margin:10px 0 5px;color:#17334e;font-size:26px;letter-spacing:-.03em}.internal-section-head p{margin:0;color:#708295;font-size:12px}.internal-category-link{flex:0 0 auto;color:#315e86;font-size:11px;font-weight:800}.related-tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.related-tool-card{display:grid;grid-template-columns:40px minmax(0,1fr) 22px;gap:11px;align-items:center;min-height:104px;padding:14px;border:1px solid #e1e9f0;border-radius:15px;background:linear-gradient(180deg,#fff,#fafcfe);transition:.18s ease}.related-tool-card:hover{transform:translateY(-2px);border-color:#c7d6e4;box-shadow:var(--shadow-xs)}.related-tool-icon{position:relative;width:40px;height:40px;border:1px solid #dce7f1;border-radius:11px;background:#f0f6fb;color:transparent;font-size:0}.related-tool-icon:before{content:"";position:absolute;left:12px;top:12px;width:14px;height:14px;border:2px solid #4f67f6;border-radius:5px;box-shadow:5px 5px 0 -3px #18b7e7}.related-tool-copy{min-width:0}.related-tool-copy strong,.related-tool-copy small{display:block}.related-tool-copy strong{color:#203b54;font-size:12px;line-height:1.35}.related-tool-copy small{display:-webkit-box;margin-top:3px;overflow:hidden;color:#77899b;font-size:9px;line-height:1.4;-webkit-line-clamp:2;-webkit-box-orient:vertical}.related-tool-arrow{color:#617b94;font-size:15px}.tool-sequence-nav{display:grid;grid-template-columns:160px minmax(0,1fr);gap:16px;align-items:center;margin-top:20px;padding-top:18px;border-top:1px solid #e7edf3}.sequence-meta span,.sequence-meta strong{display:block}.sequence-meta span{color:#8494a4;font-size:9px;font-weight:800}.sequence-meta strong{margin-top:4px;color:#2b465f;font-size:11px}.sequence-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sequence-links>a{padding:12px 13px;border:1px solid #e2e9f0;border-radius:12px;background:#f8fafc}.sequence-links>a small,.sequence-links>a strong{display:block}.sequence-links>a small{color:#8494a4;font-size:8px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}.sequence-links>a strong{margin-top:3px;color:#2b465f;font-size:10px;line-height:1.4}.sequence-next{text-align:right}
.smart-side-card{position:sticky;top:98px}.category-hub-card{margin-bottom:18px;padding:17px;border-radius:17px;background:radial-gradient(circle at 90% 10%,rgba(255,255,255,.15),transparent 24%),linear-gradient(140deg,#12385e,#315bb4 57%,#7554d8);color:#fff;box-shadow:0 18px 36px rgba(39,62,111,.17)}.category-hub-label{display:block;color:#bcd1e4;font-size:8px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.category-hub-card h3{margin:6px 0 5px;font-size:19px}.category-hub-card p{margin:0;color:#d5e1ed;font-size:10px;line-height:1.55}.category-hub-card a{display:inline-flex;margin-top:12px;color:#fff;font-size:10px;font-weight:800}.smart-side-list a{display:grid;grid-template-columns:16px 1fr;gap:9px;align-items:center}.smart-side-list a>span:first-child{position:relative;width:12px;height:12px;color:transparent;font-size:0}.smart-side-list a>span:first-child:after{content:"";position:absolute;inset:2px;border-radius:50%;background:linear-gradient(135deg,#38bdf8,#6366f1)}.smart-side-list a>span:last-child{line-height:1.35}.side-related-categories{margin-top:18px;padding-top:16px;border-top:1px solid #e6edf3}.side-related-categories>strong{display:block;color:#334e66;font-size:11px}.side-related-categories>div{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}.side-related-categories a{padding:6px 8px;border:1px solid #e0e7ee;border-radius:999px;background:#f4f7fa;color:#597188;font-size:9px;font-weight:700}.side-related-categories a:hover{background:#ebf2f9;color:#254f76}

/* Static pages */
.static-page{padding:48px 0 62px}.static-card{max-width:930px;padding:30px}.static-card h1{margin:0 0 16px;color:#15324d;font-size:38px;letter-spacing:-.04em}.static-card p{color:#596f83;line-height:1.8}

/* Footer */
.site-footer{position:relative;overflow:hidden;margin-top:50px;padding:52px 0 20px;background:linear-gradient(150deg,#07111f,#0a1829 62%,#0d1830);color:#c7d3df;border-top:1px solid rgba(148,163,184,.13)}.footer-glow{position:absolute;right:-100px;top:-150px;width:380px;height:380px;border-radius:50%;background:rgba(99,102,241,.13);filter:blur(16px)}.footer-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}.footer-grid>div:not(:first-child){display:grid;align-content:start;gap:9px}.footer-grid>div>strong{margin-bottom:4px;color:#f2f6fa;font-size:12px}.footer-brand{margin-bottom:15px}.footer-logo-link{display:inline-block;width:min(220px,100%);margin-bottom:16px;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 14px 34px rgba(0,7,18,.22)}.footer-logo-full{width:100%;height:auto}.footer-text{max-width:500px;margin:0;color:#879bb0;font-size:12px;line-height:1.7}.footer-grid a,.footer-preference-btn{color:#9fb0c0;font-size:11px}.footer-grid a:hover,.footer-preference-btn:hover{color:#fff}.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;color:#71889f;font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.footer-status span{width:6px;height:6px;border-radius:50%;background:#20c997;box-shadow:0 0 0 5px rgba(32,201,151,.08)}.footer-bottom{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:30px;padding-top:18px;border-top:1px solid rgba(148,163,184,.11);color:#6e8499;font-size:9px}.footer-preference-btn{border:0;padding:0;background:transparent;text-align:left;cursor:pointer}

/* Consent */
.cookie-consent[hidden]{display:none!important}.cookie-consent{position:fixed;left:20px;right:20px;bottom:20px;z-index:120}.cookie-consent-inner{width:min(900px,100%);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:17px 19px;border:1px solid rgba(148,163,184,.2);border-radius:18px;background:rgba(8,20,35,.96);box-shadow:0 26px 80px rgba(0,9,22,.28);backdrop-filter:blur(20px);color:#dce7f1}.cookie-consent-copy{min-width:0}.cookie-consent-copy strong{display:block;color:#fff;font-size:13px}.cookie-consent-copy p{margin:4px 0 0;color:#91a6ba;font-size:10px;line-height:1.55}.cookie-consent-actions{display:flex;gap:8px;flex:0 0 auto}.cookie-btn{min-height:38px;padding:0 13px;border-radius:10px;font-size:10px;font-weight:800;cursor:pointer}.cookie-btn-primary{border:0;background:linear-gradient(135deg,#2563eb,#6d55e7);color:#fff}.cookie-btn-secondary{border:1px solid rgba(148,163,184,.18);background:rgba(255,255,255,.06);color:#c5d3df}

@media(max-width:1050px){
  .calc-layout{grid-template-columns:1fr}.smart-side-card{position:static}.related-tool-grid{grid-template-columns:1fr}.tool-sequence-nav{grid-template-columns:1fr}.category-summary-bar{grid-template-columns:1fr}.category-summary-bar>a{justify-self:start}
}
@media(max-width:980px){
  .brand small{max-width:240px}
  .menu-toggle{display:block}
  .main-nav{display:none;position:absolute;left:20px;right:20px;top:76px;margin:0;padding:12px;border:1px solid rgba(148,163,184,.16);border-radius:18px;background:rgba(7,17,31,.985);box-shadow:0 28px 64px rgba(0,8,20,.34);flex-direction:column;align-items:stretch;gap:5px}.main-nav.open{display:flex}.main-nav>a,.nav-dropdown-trigger{width:100%;height:auto;justify-content:space-between;padding:12px 13px}
  .has-dropdown:after{display:none}.dropdown-menu.premium-mega-menu{position:static;width:auto;margin:0;padding:0 7px;border:0;border-radius:14px;background:#0b192b;box-shadow:none;opacity:1;visibility:visible;transform:none;pointer-events:auto;display:none}.has-dropdown.dropdown-open .dropdown-menu.premium-mega-menu{display:block}.mega-menu-head{padding:12px 7px}.mega-menu-head>a{display:none}.mega-menu-grid{grid-template-columns:repeat(2,1fr);padding:8px 0}.mega-menu-foot{margin-bottom:7px}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .tools-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-about{grid-column:1/-1}
}
@media(max-width:720px){
  .container{width:min(100% - 24px,1200px)}
  .brand small{display:none}.nav-wrap{min-height:68px}.main-nav{top:68px;left:12px;right:12px}
  .page-hero{padding:42px 0 36px}.page-hero h1{font-size:34px}.page-hero p{font-size:14px}
  .section{padding:34px 0}.section-head{align-items:flex-start;flex-direction:column}.section-head h2{font-size:28px}
  .category-grid,.form-grid,.result-grid,.content-two-col,.sequence-links,.related-category-grid{grid-template-columns:1fr}
  .calc-card,.side-card,.content-card,.static-card,.internal-links-card,.related-category-section{padding:18px}.calc-panel-head{align-items:flex-start;flex-direction:column;gap:6px}.result-main{font-size:28px}
  .internal-section-head{align-items:flex-start;flex-direction:column}.internal-section-head h2{font-size:23px}.sequence-next{text-align:left}
  .footer-grid{grid-template-columns:1fr}.footer-about{grid-column:auto}.footer-bottom{align-items:flex-start;flex-direction:column}
  .cookie-consent{left:12px;right:12px;bottom:12px}.cookie-consent-inner{align-items:stretch;flex-direction:column;gap:13px;padding:15px}.cookie-consent-actions{width:100%}.cookie-btn{flex:1}
}
@media(max-width:560px){.mega-menu-grid{grid-template-columns:1fr}.tool-card{min-height:0}.category-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* --- v4.21 design refresh --- */
:root{
  --bg:#f3f6fb;
  --surface:#ffffff;
  --surface-2:#f8fbff;
  --surface-3:#edf3f9;
  --ink:#0f2237;
  --muted:#617489;
  --line:#dde7f1;
  --line-strong:#cad8e7;
  --shadow-xs:0 8px 24px rgba(15,35,56,.05);
  --shadow-sm:0 18px 44px rgba(15,35,56,.08);
  --shadow-md:0 30px 72px rgba(15,35,56,.12);
  --radius-sm:14px;
  --radius-md:20px;
  --radius-lg:26px;
  --radius-xl:34px;
}
body{
  background:
    radial-gradient(circle at top left, rgba(37,99,235,.08), transparent 26%),
    radial-gradient(circle at top right, rgba(16,184,232,.07), transparent 24%),
    linear-gradient(180deg,#f6f9fd 0%,#f3f6fb 35%,#eef3f8 100%);
  font-family:"Segoe UI Variable","Segoe UI",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Roboto,Arial,sans-serif;
  font-size:15px;
  color:var(--ink);
}
h1,h2,h3,h4,.brand strong,.premium-section-head h2,.page-hero h1,.content-card h2,.internal-section-head h2,.static-card h1,.premium-bottom-copy h2{font-family:"Segoe UI Variable Display","Segoe UI",ui-sans-serif,system-ui,sans-serif}
.container{width:min(1240px,calc(100% - 40px))}
.section{padding:36px 0}

.site-header{
  background:rgba(8,18,33,.84);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 14px 40px rgba(1,9,20,.14);
}
.nav-wrap{min-height:82px;gap:22px}
.brand{gap:14px}
.brand-mark{width:52px;height:52px;flex-basis:52px;border-radius:16px;box-shadow:0 16px 34px rgba(2,8,23,.3)}
.brand-mark img{width:52px;height:52px;object-fit:cover}
.brand strong{font-size:18px;font-weight:800;letter-spacing:-.03em}
.brand small{margin-top:2px;color:#a2b7ca;font-size:12px}
.main-nav{gap:8px}
.main-nav>a,.nav-dropdown-trigger{height:46px;padding:0 16px;border-radius:14px;font-size:13px;font-weight:700;color:#d5e1ec}
.main-nav>a:hover,.nav-dropdown-trigger:hover,.nav-item:focus-within .nav-dropdown-trigger{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.1)}
.dropdown-menu.premium-mega-menu{
  border:1px solid rgba(221,231,241,.78);
  border-radius:24px;
  background:rgba(255,255,255,.96);
  box-shadow:0 34px 76px rgba(8,20,35,.18);
  backdrop-filter:blur(16px);
}
.mega-menu-head strong,.mega-menu-head a,.mega-menu-grid a span,.mega-menu-foot a{color:#16324d}
.mega-menu-head{border-bottom:1px solid #e8eef5}
.mega-menu-grid a{border-radius:16px;background:#f8fbff;border-color:#e5edf6}
.mega-menu-grid a:hover{background:#fff;box-shadow:var(--shadow-xs)}
.mega-menu-foot{border-top:1px solid #e8eef5}

.section-kicker{padding:7px 12px;font-size:11px;letter-spacing:.09em}
.btn{min-height:48px;padding:0 20px;border-radius:14px;font-size:14px;font-weight:700}
.btn-primary{background:linear-gradient(135deg,#165bd8,#14b8e9 110%);box-shadow:0 14px 28px rgba(37,99,235,.23)}
.btn-light{background:#fff;border-color:#d6e2ee}
.search-box{height:56px;padding:0 80px 0 16px;border-radius:16px;font-size:15px;background:#fff}
.search-box::placeholder{color:#8a9cae}

.category-card,.tool-card,.toolbar-card,.calc-card,.side-card,.content-card,.static-card,.related-category-section,.internal-links-card{
  border-color:rgba(213,224,234,.95);
  border-radius:24px;
  box-shadow:0 14px 38px rgba(15,35,56,.06);
}
.category-card:hover,.tool-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(15,35,56,.09)}
.category-card,.tool-card,.content-card,.static-card,.internal-links-card,.related-category-section{background:linear-gradient(180deg,#fff,#fcfdff)}

.page-hero{
  padding:68px 0 56px;
  background:
    radial-gradient(circle at 78% 20%,rgba(59,130,246,.2),transparent 24%),
    radial-gradient(circle at 12% 28%,rgba(34,197,94,.08),transparent 22%),
    linear-gradient(135deg,#081322 0%,#102744 56%,#122742 100%);
}
.breadcrumb{font-size:13px;color:#93a8bc}
.page-hero h1{font-size:clamp(38px,4.8vw,56px);margin:18px 0 12px}
.page-hero p{font-size:17px;max-width:760px;color:#adc0d2}

.category-summary-bar{
  grid-template-columns:170px 1fr auto;
  padding:20px 22px;
  border-radius:24px;
  background:linear-gradient(120deg,#fbfdff,#f4f8fd 60%,#fff);
  box-shadow:0 16px 38px rgba(15,35,56,.06);
}
.category-summary-bar>div strong{font-size:30px}
.category-summary-bar p{font-size:13px;line-height:1.7}

.calc-layout{gap:24px;padding:34px 0 64px;align-items:start}
.calc-card,.side-card,.content-card{padding:28px}
.calc-card{border-radius:28px;box-shadow:0 24px 54px rgba(15,35,56,.08)}
.calc-panel-head{margin-bottom:24px;padding-bottom:16px}
.form-grid{gap:16px}
.field label{font-size:12px}
.field input,.field select,.field textarea{
  height:52px;
  padding:0 15px;
  border-radius:14px;
  background:#fdfefe;
  font-size:14px;
}
.field textarea{padding:14px;min-height:164px}
.field input:focus,.field select:focus,.field textarea:focus{box-shadow:0 0 0 4px rgba(37,99,235,.1)}
.result-box{padding:24px;border-radius:22px;box-shadow:0 24px 52px rgba(11,28,48,.18)}
.result-main{font-size:38px}
.result-item{padding:14px;border-radius:14px}
.side-card{border-radius:24px}
.side-head h3{font-size:20px}
.side-list a{padding:12px 14px;border-radius:14px;font-size:12px}
.notice{padding:14px 15px;border-radius:16px;font-size:11px}
.content-card h2{font-size:28px}
.content-card p,.content-card li{font-size:15px;line-height:1.75}
.rich-content-card{padding:32px}
.content-intro h2{font-size:32px}
.content-intro p,.info-panel p,.check-list li,.note-list li,.guide-steps li{font-size:14px}
.guide-steps li{padding:14px 15px 14px 54px;border-radius:16px}
.info-panel{border-radius:20px;padding:22px}
.internal-section-head h2{font-size:28px}
.related-tool-card{min-height:112px;padding:16px;border-radius:18px}
.related-tool-copy strong{font-size:13px}.related-tool-copy small{font-size:10px}
.sequence-links>a{padding:14px 15px;border-radius:14px}
.smart-side-card{top:102px}
.category-hub-card{padding:20px;border-radius:20px}
.category-hub-card h3{font-size:21px}
.side-related-categories a{padding:7px 10px;font-size:10px}

.static-page{padding:58px 0 74px}
.static-card{padding:36px;border-radius:26px}
.static-card h1{font-size:42px}
.static-card p{font-size:15px}

.site-footer{margin-top:64px;padding:60px 0 24px}
.footer-grid{grid-template-columns:1.45fr .9fr .9fr;gap:46px}
.footer-logo-link{width:min(240px,100%);border-radius:18px}
.footer-text{font-size:13px;line-height:1.8}
.footer-grid>div>strong{font-size:13px}
.footer-grid a,.footer-preference-btn{font-size:12px;line-height:1.8}
.footer-bottom{font-size:11px}
.cookie-consent-inner{border-radius:22px;padding:18px 20px}.cookie-consent-copy strong{font-size:14px}.cookie-consent-copy p,.cookie-btn{font-size:11px}

@media(max-width:980px){
  .nav-wrap{min-height:78px}
  .main-nav{top:80px;left:16px;right:16px;border-radius:20px;padding:14px}
  .brand small{display:none}
}
@media(max-width:720px){
  body{font-size:14px}
  .container{width:min(100%,calc(100% - 28px))}
  .page-hero{padding:52px 0 40px}
  .page-hero h1{font-size:34px}
  .page-hero p{font-size:15px}
  .calc-card,.side-card,.content-card,.static-card,.internal-links-card,.related-category-section,.rich-content-card{padding:20px}
  .static-card h1{font-size:34px}
  .content-card h2,.content-intro h2,.internal-section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* Search results page — v4.24 */
.search-page-hero{padding-bottom:48px}
.search-results-section{padding:34px 0 70px}
.search-results-form{position:relative;z-index:3;margin-top:-64px;margin-bottom:32px}
.search-results-input-wrap{position:relative;display:flex;align-items:center;gap:10px;max-width:900px;margin:0 auto;padding:10px 10px 10px 18px;border:1px solid #d8e3ee;border-radius:22px;background:#fff;box-shadow:0 24px 60px rgba(15,35,56,.14)}
.search-results-input-wrap svg{flex:0 0 22px;width:22px;height:22px;fill:none;stroke:#5c7186;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.search-results-input{min-width:0;flex:1;height:50px;border:0;background:transparent;color:#102a43;font:inherit;font-size:16px;outline:0}
.search-results-input::placeholder{color:#91a0af}
.search-results-submit{flex:0 0 auto;min-width:96px;height:50px;border:0;border-radius:14px;background:linear-gradient(135deg,#165bd8,#16b8e9);color:#fff;font:inherit;font-size:13px;font-weight:800;cursor:pointer;box-shadow:0 12px 24px rgba(37,99,235,.22);transition:transform .18s ease,box-shadow .18s ease}
.search-results-submit:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(37,99,235,.28)}
.search-results-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:0 0 20px}
.search-results-head h2{margin:9px 0 0;color:#142f49;font-size:30px;letter-spacing:-.035em}
.search-results-head>a{display:inline-flex;align-items:center;gap:7px;color:#315e86;font-size:12px;font-weight:800}
.search-results-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.search-result-card{display:grid;grid-template-columns:54px minmax(0,1fr) 34px;gap:15px;align-items:center;min-height:132px;padding:19px;border:1px solid #dce6ef;border-radius:21px;background:linear-gradient(180deg,#fff,#fbfdff);box-shadow:0 12px 30px rgba(15,35,56,.05);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.search-result-card:hover{transform:translateY(-3px);border-color:#c7d6e4;box-shadow:0 20px 42px rgba(15,35,56,.09)}
.search-result-icon{width:54px;height:54px;display:grid;place-items:center;border:1px solid #dce6ef;border-radius:16px;background:linear-gradient(145deg,#f8fbff,#edf4fb);color:#35658d;overflow:hidden}
.search-result-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.search-result-copy{min-width:0}.search-result-copy>span{display:block;margin-bottom:4px;color:#6a8095;font-size:9px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.search-result-copy h3{margin:0;color:#193750;font-size:16px;line-height:1.35;letter-spacing:-.015em}.search-result-copy p{display:-webkit-box;margin:6px 0 0;overflow:hidden;color:#738699;font-size:11px;line-height:1.55;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.search-result-arrow{width:34px;height:34px;display:grid;place-items:center;border-radius:999px;background:#f0f5fa;color:#4e6f8c;font-size:15px;transition:.18s ease}.search-result-card:hover .search-result-arrow{background:#245fdc;color:#fff}
.search-state-card{max-width:900px;margin:0 auto;padding:28px;border:1px solid #dce6ef;border-radius:22px;background:#fff;box-shadow:0 14px 34px rgba(15,35,56,.05);text-align:center}.search-state-card strong{display:block;color:#193750;font:800 22px/1.25 Manrope,Inter,sans-serif}.search-state-card p{max-width:680px;margin:9px auto 0;color:#6f8295;font-size:13px;line-height:1.7}.search-example-links{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:18px}.search-example-links a{padding:8px 12px;border:1px solid #dce6ef;border-radius:999px;background:#f7fafe;color:#365f88;font-size:11px;font-weight:750}.search-example-links a:hover{background:#edf4fb}.search-no-results .btn{margin-top:18px}
@media(max-width:800px){.search-results-grid{grid-template-columns:1fr}.search-results-head{align-items:flex-start;flex-direction:column}.search-results-form{margin-top:-46px}.search-results-input-wrap{padding:8px 8px 8px 14px;border-radius:18px}.search-results-submit{min-width:76px;height:46px}.search-results-input{height:46px;font-size:14px}.search-result-card{grid-template-columns:48px minmax(0,1fr) 30px;padding:16px}.search-result-icon{width:48px;height:48px;border-radius:14px}}

/* --- v4.26 mobile fit fixes --- */
.calc-layout,.calc-layout>*,.form-grid,.field,.field input,.field select,.field textarea{min-width:0;max-width:100%}
.field input,.field select,.field textarea{box-sizing:border-box}

@media(max-width:980px){
  .site-header{overflow:visible}
  .nav-wrap{position:relative}
  .main-nav{
    max-height:calc(100dvh - 96px);
    overflow-y:auto;
    overscroll-behavior:contain;
    scrollbar-width:thin;
    -webkit-overflow-scrolling:touch;
  }
  .main-nav::-webkit-scrollbar{width:6px}
  .main-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px}
  .dropdown-menu.premium-mega-menu{
    max-height:none;
    overflow:visible;
    padding:0 5px 6px;
    background:rgba(10,25,43,.96);
  }
  .mega-menu-head{padding:10px 6px 8px}
  .mega-menu-head strong{font-size:12px;color:#f3f8fc}
  .mega-kicker{font-size:8px}
  .mega-menu-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;padding:5px 0}
  .dropdown-menu .mega-menu-grid>a{
    min-width:0;
    min-height:38px;
    padding:8px 9px;
    border-color:rgba(255,255,255,.07);
    border-radius:10px;
    background:rgba(255,255,255,.045);
    color:#d7e4ef;
    font-size:10.5px;
    line-height:1.25;
  }
  .dropdown-menu .mega-menu-grid>a span{min-width:0;color:#dce8f2;white-space:normal;overflow-wrap:anywhere}
  .mega-menu-grid>a small{display:none}
  .mega-menu-foot{padding:8px 6px 3px;margin-bottom:2px;font-size:9px}
  .mega-menu-foot>a{color:#b9d6ee}
}

@media(max-width:720px){
  .container{width:calc(100% - 20px)}
  .nav-wrap{min-height:66px;gap:10px}
  .brand{gap:9px}
  .brand-mark{width:44px;height:44px;flex:0 0 44px;border-radius:13px}
  .brand-mark img{width:44px;height:44px}
  .brand strong{font-size:15px}
  .menu-toggle{width:40px;height:40px;border-radius:11px}
  .main-nav{
    top:68px;
    left:10px;
    right:10px;
    padding:9px;
    gap:3px;
    border-radius:16px;
    max-height:calc(100dvh - 82px);
  }
  .main-nav>a,.nav-dropdown-trigger{padding:10px 11px;font-size:12px;border-radius:10px}
  .mega-menu-head{padding:8px 4px 6px}
  .mega-menu-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:4px 0}
  .dropdown-menu .mega-menu-grid>a{min-height:36px;padding:7px 8px;font-size:10px}
  .mega-menu-foot{display:none}

  .page-hero{padding:38px 0 30px}
  .page-hero h1{font-size:30px;line-height:1.12;margin:12px 0 8px}
  .page-hero p{font-size:13px;line-height:1.6}
  .breadcrumb{font-size:10px;margin-bottom:10px;overflow-wrap:anywhere}
  .section-kicker{padding:5px 8px;font-size:8px}

  .calc-layout{display:block;padding:18px 0 42px}
  .calc-layout>div{min-width:0;width:100%}
  .calc-card,.side-card,.content-card,.static-card,.internal-links-card,.related-category-section,.rich-content-card{
    width:100%;
    padding:15px;
    border-radius:18px;
  }
  .calc-panel-head{margin:0 0 14px;padding-bottom:11px;gap:4px}
  .calc-panel-status{font-size:9px}
  .calc-panel-head small{font-size:8.5px}
  .form-grid{grid-template-columns:minmax(0,1fr);gap:10px}
  .field{gap:5px;min-width:0}
  .field label{font-size:10.5px;line-height:1.35}
  .field input,.field select{
    width:100%;
    height:44px;
    padding:0 10px;
    border-radius:10px;
    font-size:16px;
  }
  .field textarea{width:100%;min-height:120px;padding:10px;border-radius:10px;font-size:16px}
  .field small{font-size:9px;line-height:1.45}
  .calc-actions{display:grid;grid-template-columns:1fr;gap:8px;margin-top:14px}
  .calc-actions .btn{width:100%;min-height:43px;padding:0 12px;border-radius:11px;font-size:12px}
  .result-box{margin-top:16px;padding:15px;border-radius:16px}
  .result-main{font-size:25px;line-height:1.15;overflow-wrap:anywhere}
  .result-grid{grid-template-columns:1fr;gap:7px;margin-top:12px}
  .result-item{min-width:0;padding:10px;border-radius:10px}
  .result-item strong{font-size:11px;overflow-wrap:anywhere}
  .side-card{margin-top:14px}
  .side-head h3{font-size:17px}
  .side-list{gap:6px;margin-top:10px}
  .side-list a{padding:10px;border-radius:10px;font-size:10px}
  .notice{margin-top:12px;padding:11px;border-radius:11px;font-size:9px}
  .content-card{margin-top:14px}
  .content-card h2,.content-intro h2,.internal-section-head h2{font-size:21px}
  .content-card p,.content-card li,.content-intro p,.info-panel p,.check-list li,.note-list li,.guide-steps li{font-size:12px;line-height:1.65}
  .content-two-col{gap:9px}.info-panel{padding:14px;border-radius:13px}
  .related-tool-grid{gap:8px}.related-tool-card{min-height:86px;padding:10px;border-radius:12px}
  .related-tool-copy strong{font-size:11px}.related-tool-copy small{font-size:9px}
}

@media(max-width:380px){
  .mega-menu-grid{grid-template-columns:1fr}
  .dropdown-menu .mega-menu-grid>a{min-height:34px}
  .brand strong{font-size:14px}
}

/* v4.26.1 — mobile mega-menu position correction */
@media(max-width:980px){
  .dropdown-menu.premium-mega-menu{
    position:static!important;
    left:auto!important;
    top:auto!important;
    width:100%!important;
    margin:0!important;
    border:0!important;
    border-radius:12px!important;
    box-shadow:none!important;
    opacity:1!important;
    visibility:visible!important;
    transform:none!important;
    pointer-events:auto!important;
    max-height:calc(100dvh - 190px);
    overflow-y:auto;
    overflow-x:hidden;
    overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch;
  }
  .has-dropdown:not(.dropdown-open) .dropdown-menu.premium-mega-menu{display:none!important}
  .has-dropdown.dropdown-open .dropdown-menu.premium-mega-menu{display:block!important}
}
@media(max-width:720px){
  .dropdown-menu.premium-mega-menu{max-height:calc(100dvh - 160px);padding:5px!important}
  .mega-menu-head,.mega-menu-foot{display:none!important}
  .mega-menu-grid{padding:0!important}
}
@media(max-width:720px){
  .dropdown-menu.premium-mega-menu{max-height:calc(100dvh - 250px)}
}
@media(max-width:380px){
  .mega-menu-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dropdown-menu .mega-menu-grid>a{font-size:9.5px;padding:6px 7px;min-height:34px}
}

/* v4.27 country switch */
.locale-switch{height:43px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.055);color:#d7e3ee;font-size:12px;font-weight:800;white-space:nowrap}.locale-switch:hover{background:rgba(255,255,255,.1);color:#fff}.main-nav>.locale-switch{margin-left:3px}@media(max-width:980px){.main-nav>.locale-switch{width:100%;height:auto;min-height:42px;margin:0;justify-content:flex-start;padding:12px 13px}}

/* Footer language & region selector */
.footer-locale-picker{margin-top:10px;padding-top:12px;border-top:1px solid rgba(148,163,184,.12)}
.footer-locale-picker label{display:block;margin-bottom:7px;color:#f2f6fa;font-size:11px;font-weight:800;letter-spacing:.02em}
.footer-select-wrap{position:relative;max-width:260px}
.footer-select-wrap:after{content:"⌄";position:absolute;right:13px;top:50%;transform:translateY(-55%);color:#9fb0c0;font-size:15px;pointer-events:none}
.footer-locale-select{width:100%;min-height:42px;padding:0 38px 0 12px;border:1px solid rgba(148,163,184,.2);border-radius:12px;outline:0;appearance:none;-webkit-appearance:none;background:#0d2033;color:#d8e3ed;font:inherit;font-size:11px;font-weight:700;cursor:pointer;transition:border-color .18s,background .18s,box-shadow .18s}
.footer-locale-select:hover{border-color:rgba(148,163,184,.35);background:#10283f}
.footer-locale-select:focus{border-color:#5ea6e8;box-shadow:0 0 0 3px rgba(59,130,246,.16)}
.footer-locale-select option{background:#fff;color:#17283a}
@media(max-width:680px){.footer-select-wrap{max-width:none}.footer-locale-select{min-height:46px;font-size:12px}}