:root{--blue:#1768f2;--cyan:#11c9ef;--ink:#0b1740;--muted:#64708b;--line:#e3eaf5;--bg:#f7faff;--card:#fff;--green:#0a9b55}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff}a{color:inherit;text-decoration:none}.wrap{width:min(1160px,calc(100% - 36px));margin:auto}
.header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{height:72px;display:flex;align-items:center;gap:28px}.brand img{display:block;width:176px;height:auto}.navlinks{display:flex;gap:22px;margin-left:auto;font-size:14px}.search-mini{width:210px;border:1px solid var(--line);border-radius:999px;padding:10px 14px;outline:none}
.hero{background:linear-gradient(135deg,#f8fbff,#eef6ff 60%,#f7fdff);padding:72px 0 58px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--blue)}h1{font-size:clamp(42px,6vw,68px);line-height:1.02;margin:12px 0 18px;letter-spacing:-.045em}h1 span{color:var(--blue)}.hero p{font-size:18px;color:var(--muted);max-width:620px}.big-search{display:flex;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px #2b6cb012;border-radius:999px;padding:6px;margin-top:26px}.big-search input{border:0;outline:0;flex:1;padding:12px 16px;font-size:15px;background:transparent}.big-search button{border:0;background:var(--blue);color:#fff;width:48px;border-radius:50%;font-size:20px}.trust{display:flex;gap:20px;flex-wrap:wrap;margin-top:18px;font-size:12px;color:#33415f}.hero-art{min-height:330px;position:relative}.orb{position:absolute;border-radius:50%;background:radial-gradient(circle at 35% 25%,#fff,#bceeff 28%,#2b7cff 75%,#0b1d7a);box-shadow:0 30px 70px #1677ff33}.orb.one{width:190px;height:190px;left:110px;top:65px}.art-card{position:absolute;background:#fff;border:1px solid #dbe8ff;border-radius:18px;padding:15px 18px;box-shadow:0 18px 40px #1b67d11c;font-size:13px}.a1{right:12px;top:40px}.a2{right:0;bottom:35px}.a3{left:5px;top:30px}.calendar{position:absolute;font-size:110px;left:155px;top:100px;filter:drop-shadow(0 18px 20px #1768f233)}
.section{padding:54px 0}.section.alt{background:var(--bg)}h2{font-size:28px;margin:0 0 8px;letter-spacing:-.025em}.section-lead{color:var(--muted);margin:0 0 22px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-card{display:block;border:1px solid var(--line);border-radius:20px;padding:22px;background:#fff;min-height:176px;transition:.2s}.tool-card:hover{transform:translateY(-3px);box-shadow:0 16px 38px #214b8f12;border-color:#cddcf4}.tool-card .icon{font-size:28px}.tool-card h3{margin:12px 0 7px;font-size:18px}.tool-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.soft-blue{background:#f0f7ff}.soft-pink{background:#fff4f5}.soft-green{background:#f1fbf5}.soft-gold{background:#fff9ec}.why{background:linear-gradient(135deg,#f3f8ff,#f8fcff);border:1px solid var(--line);border-radius:24px;padding:28px}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.why-grid small{color:var(--muted)}
.footer{border-top:1px solid var(--line);padding:38px 0 50px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.footer .brand img{width:145px}.footer p,.footer a{color:var(--muted);font-size:13px;line-height:1.8}
.breadcrumb{font-size:13px;color:var(--muted);margin:28px 0 14px}.tool-head h1{font-size:44px;margin:0 0 10px}.tool-head p{color:var(--muted);font-size:16px;max-width:760px}.calc-shell{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.panel{border:1px solid var(--line);border-radius:20px;background:#fff;padding:24px;box-shadow:0 10px 35px #1a4c8b0a}.field{margin-bottom:18px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}.field input,.field select{width:100%;border:1px solid #dbe4f2;border-radius:11px;padding:13px 14px;font:inherit;color:var(--ink);background:#fff}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn{border:0;border-radius:11px;padding:14px 18px;font-weight:800;cursor:pointer}.btn.primary{width:100%;background:linear-gradient(90deg,#1768f2,#087cf5);color:#fff}.btn.light{background:#eef5ff;color:#125dd4}.result{background:linear-gradient(180deg,#f3fff7,#fff);border-color:#d7f2e0}.result-title{text-align:center;color:var(--green);font-weight:800;font-size:12px;letter-spacing:.08em}.big-result{text-align:center;font-size:42px;font-weight:900;margin:16px 0 4px;letter-spacing:-.04em}.sub-result{text-align:center;color:#34415e;margin-bottom:22px}.stats{display:grid;grid-template-columns:1fr auto;gap:9px;font-size:13px;padding-top:14px;border-top:1px solid #e4eee7}.stats span:nth-child(odd){color:var(--muted)}.stats b{text-align:right}.note{background:#eef7ff;border:1px solid #dcecff;border-radius:14px;padding:14px 16px;color:#315172;font-size:13px;margin:0 0 30px}.content{max-width:860px}.content h2{margin-top:34px}.content p,.content li{color:#4d5972;line-height:1.75}.faq details{border:1px solid var(--line);border-radius:12px;padding:13px 15px;margin:9px 0}.faq summary{cursor:pointer;font-weight:700}.related{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0 50px}.related a{border:1px solid var(--line);border-radius:14px;padding:14px;font-size:13px;font-weight:700}.quick{display:flex;gap:8px;flex-wrap:wrap;margin:-4px 0 18px}.quick button{border:1px solid #dbe4f2;background:#f8fbff;border-radius:999px;padding:7px 10px;cursor:pointer}
@media(max-width:850px){.navlinks{display:flex;gap:14px;font-size:13px}.search-mini{display:none}.brand img{width:145px}.hero{padding-top:48px}.hero-grid,.calc-shell{grid-template-columns:1fr}.hero-art{min-height:280px}.cards{grid-template-columns:repeat(2,1fr)}.why-grid,.footer-grid{grid-template-columns:repeat(2,1fr)}.related{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.wrap{width:min(100% - 24px,1160px)}.nav{height:64px}.brand img{width:118px}.navlinks{gap:9px;font-size:12px}.hero-art{display:none}.hero p{font-size:16px}.trust{gap:10px}.cards{grid-template-columns:1fr}.why-grid,.footer-grid,.related,.row{grid-template-columns:1fr}.tool-head h1{font-size:36px}.panel{padding:18px}.big-result{font-size:36px}}

.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0 18px}.check{display:flex;align-items:center;gap:8px;border:1px solid var(--line);padding:11px 12px;border-radius:11px;font-size:13px}.check input{width:auto}
.entry{display:grid;grid-template-columns:1fr 1fr 120px 40px;gap:8px;align-items:end;margin-bottom:10px}.entry .field{margin:0}.remove{height:45px;border:1px solid #f0d5d8;background:#fff6f7;border-radius:10px;cursor:pointer}
.live-count{font-variant-numeric:tabular-nums}
@media(max-width:620px){.entry{grid-template-columns:1fr 1fr}.entry .break{grid-column:1/2}.entry .remove{grid-column:2/3}}

.seo-depth{margin-top:28px}.seo-depth h2{font-size:25px;margin-top:34px}.seo-depth p{font-size:15px;line-height:1.8;color:#4d5972}
.staging-banner{background:#0b1740;color:#fff;text-align:center;font-size:12px;padding:7px 12px}

/* V4.7 support pages */
.support-hero{padding:66px 0 72px}.support-wrap{max-width:940px}.support-wrap h1{font-size:clamp(40px,5vw,58px);margin:10px 0 16px}.support-lead{font-size:18px;line-height:1.7;color:var(--muted);max-width:820px;margin:0 0 32px}.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:30px 0}.support-card{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff}.support-card h2{font-size:20px;margin:0 0 9px}.support-card p{margin:0;color:#4d5972;line-height:1.7;font-size:14px}.support-icon{width:38px;height:38px;border-radius:11px;background:#eef5ff;color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:16px}.support-callout{margin-top:28px;border:1px solid #dce9fb;border-radius:20px;background:linear-gradient(135deg,#f3f8ff,#f8fcff);padding:26px}.support-callout h2{font-size:23px;margin:0 0 6px}.support-callout p{color:#4d5972;line-height:1.7;margin:0}.support-links{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.support-links a{border:1px solid #d4e2f7;background:#fff;border-radius:999px;padding:9px 13px;font-size:13px;font-weight:700;color:#125dd4}.contact-status strong{color:var(--ink)}.legal-copy{max-width:820px}.legal-copy h2{font-size:22px;margin:30px 0 8px}.legal-copy p{color:#4d5972;line-height:1.8}.legal-copy a{color:#125dd4;text-decoration:underline;text-underline-offset:2px}.legal-date{display:inline-block;background:#f3f7fc;border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:12px;margin:0 0 10px!important}@media(max-width:700px){.support-hero{padding:44px 0 54px}.support-grid{grid-template-columns:1fr}.support-lead{font-size:16px}.support-card{padding:20px}}

/* V4.9 Guides */
.guide-hero{padding:52px 0 28px}.guide-hero .breadcrumb{margin-top:0}.guide-hero h1{font-size:clamp(38px,5vw,58px);max-width:900px}.guide-lead{font-size:18px;line-height:1.7;color:var(--muted);max-width:820px}.guide-meta{font-size:13px;color:var(--muted);margin-top:14px}.guide-cover{width:100%;max-height:520px;object-fit:cover;border-radius:22px;border:1px solid var(--line);display:block}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:46px;align-items:start;padding:34px 0 60px}.article-body{min-width:0}.article-body h2{font-size:27px;margin:38px 0 12px}.article-body p,.article-body li{font-size:16px;line-height:1.82;color:#45526d}.article-body a{color:#125dd4;text-decoration:underline;text-underline-offset:3px}.article-img{width:100%;border-radius:18px;margin:22px 0 8px;border:1px solid var(--line);display:block}.article-note{background:#f2f7ff;border:1px solid #dbe8fb;border-radius:16px;padding:17px 19px;margin:24px 0;color:#355071;line-height:1.7}.guide-side{position:sticky;top:94px}.side-card{border:1px solid var(--line);border-radius:18px;padding:19px;background:#fff;margin-bottom:14px}.side-card strong{display:block;margin-bottom:10px}.side-card a{display:block;color:#315172;font-size:13px;padding:7px 0}.guide-faq details{border:1px solid var(--line);border-radius:13px;padding:14px 16px;margin:10px 0}.guide-faq summary{font-weight:750;cursor:pointer}.guide-faq p{font-size:14px;margin-bottom:2px}.guide-cta{background:linear-gradient(135deg,#eef6ff,#f8fcff);border:1px solid #d9e7fb;border-radius:20px;padding:24px;margin:34px 0}.guide-cta h2{margin:0 0 8px}.guide-cta .btn{display:inline-block;margin-top:8px}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:28px 0 56px}.guide-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;transition:.2s}.guide-card:hover{transform:translateY(-3px);box-shadow:0 16px 38px #214b8f12}.guide-card img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}.guide-card-copy{padding:19px}.guide-card h2{font-size:20px;margin:0 0 8px}.guide-card p{font-size:14px;line-height:1.6;color:var(--muted);margin:0}.cluster-label{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--blue);text-transform:uppercase;margin-bottom:8px}.guides-intro{padding:54px 0 8px}.guides-intro h1{font-size:clamp(40px,5vw,58px)}@media(max-width:900px){.article-layout{grid-template-columns:1fr}.guide-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:14px}.side-card{margin:0}}@media(max-width:620px){.guide-grid,.guide-side{grid-template-columns:1fr}.guide-hero{padding-top:36px}.guide-lead{font-size:16px}.article-layout{padding-top:24px}.article-body h2{font-size:24px}}

/* V5 Visual Refresh — presentation only; calculator structure and logic unchanged */
:root{--blue:#2f5cff;--cyan:#19c6f3;--violet:#7657ff;--ink:#0a1538;--muted:#5f6e8d;--line:#dbe5f4;--bg:#f3f7fd;--card:#fff;--green:#07945a}
body{background:linear-gradient(180deg,#f8fbff 0,#fff 540px);}
.header{background:rgba(249,252,255,.84);border-bottom:1px solid rgba(198,213,235,.72);box-shadow:0 8px 30px rgba(26,61,120,.05)}
.search-mini{background:rgba(255,255,255,.8);border-color:#d7e3f4;box-shadow:inset 0 1px 0 #fff}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 76% 22%,rgba(25,198,243,.22),transparent 28%),radial-gradient(circle at 24% 4%,rgba(118,87,255,.14),transparent 30%),linear-gradient(135deg,#f7faff 0%,#edf4ff 50%,#f2fbff 100%);border-bottom:1px solid #dfeafb}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(2px)}
.hero:before{width:420px;height:420px;right:-180px;top:-210px;border:1px solid rgba(47,92,255,.16);box-shadow:0 0 0 55px rgba(47,92,255,.025),0 0 0 110px rgba(25,198,243,.018)}
.hero:after{width:180px;height:180px;left:-95px;bottom:-95px;background:linear-gradient(135deg,rgba(118,87,255,.09),rgba(25,198,243,.08))}
.eyebrow,.cluster-label{color:#315cf4}.hero h1 span{background:linear-gradient(90deg,#315cf4,#6d55ff 55%,#0faedc);-webkit-background-clip:text;background-clip:text;color:transparent}
.big-search{border-color:#d6e2f4;box-shadow:0 18px 45px rgba(42,82,156,.13),0 2px 8px rgba(42,82,156,.06)}
.big-search button,.btn.primary{background:linear-gradient(110deg,#315cf4,#6a55f7 62%,#12b8e6);box-shadow:0 8px 20px rgba(47,92,255,.22)}
.trust{color:#405173}.orb{background:radial-gradient(circle at 34% 24%,#fff,#aeeaff 27%,#4773ff 65%,#4524b9);box-shadow:0 32px 80px rgba(47,92,255,.27)}
.art-card{border-color:#d7e4f8;box-shadow:0 20px 50px rgba(31,76,151,.13)}
.section{position:relative}.section.alt{background:linear-gradient(180deg,#f2f6fd,#f7faff);border-top:1px solid #e5edf8;border-bottom:1px solid #e5edf8}
.tool-card,.guide-card,.support-card,.panel,.side-card{border-color:#dbe5f3;box-shadow:0 8px 26px rgba(27,64,126,.055)}
.tool-card{position:relative;overflow:hidden}.tool-card:after{content:"";position:absolute;width:72px;height:72px;border-radius:50%;right:-28px;top:-30px;background:linear-gradient(135deg,rgba(47,92,255,.08),rgba(25,198,243,.12));transition:.2s}
.tool-card:hover,.guide-card:hover{transform:translateY(-4px);box-shadow:0 20px 46px rgba(27,64,126,.13);border-color:#bfd0ed}.tool-card:hover:after{transform:scale(1.25)}
.soft-blue{background:linear-gradient(145deg,#edf5ff,#f8fbff)}.soft-pink{background:linear-gradient(145deg,#fff0f5,#fff9fb)}.soft-green{background:linear-gradient(145deg,#edf9f4,#f9fdfb)}.soft-gold{background:linear-gradient(145deg,#fff7e6,#fffdf7)}
.why{color:#fff;background:radial-gradient(circle at 90% 0,rgba(25,198,243,.22),transparent 32%),linear-gradient(135deg,#0b1740 0%,#142963 58%,#243d8f 100%);border-color:#1e3473;box-shadow:0 24px 55px rgba(12,29,76,.18)}
.why h2,.why strong{color:#fff}.why .section-lead,.why-grid small{color:#c8d5ef}.why-grid>div{padding:14px;border-radius:14px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}
.footer{background:#091431;color:#fff;border-top:0;margin-top:18px}.footer p,.footer a{color:#aebcda}.footer strong{color:#fff}
.breadcrumb{color:#647493}.calc-shell{position:relative}.panel{box-shadow:0 14px 38px rgba(26,65,129,.07)}.result{background:radial-gradient(circle at 85% 8%,rgba(25,198,243,.11),transparent 30%),linear-gradient(180deg,#f0fff7,#fbfffd);border-color:#ccebdc}.result-title{color:#078753}.note,.article-note{background:linear-gradient(135deg,#eef5ff,#f5f9ff);border-color:#d5e4fa}.related a,.quick button{background:#f8fbff;transition:.18s}.related a:hover,.quick button:hover{border-color:#b9cdf0;background:#eef5ff}.faq details,.guide-faq details{background:#fff;box-shadow:0 4px 16px rgba(28,64,123,.035)}
.support-hero,.guides-intro,.guide-hero{background:radial-gradient(circle at 88% 8%,rgba(25,198,243,.12),transparent 26%),linear-gradient(180deg,#f7faff,#fff)}
.support-callout,.guide-cta{background:linear-gradient(135deg,#edf4ff,#f5f1ff 56%,#effcff);border-color:#d7e3f8}.support-icon{background:linear-gradient(135deg,#e8f1ff,#eef0ff);color:#315cf4}.support-links a{border-color:#cbdaf3;color:#315cf4;box-shadow:0 4px 12px rgba(47,92,255,.06)}
.guide-cover,.article-img{box-shadow:0 18px 42px rgba(23,58,116,.1);border-color:#d5e0ef}.guide-card{overflow:hidden}.guide-card img{transition:transform .35s ease}.guide-card:hover img{transform:scale(1.025)}
.staging-banner{background:linear-gradient(90deg,#0b1740,#233c88)}
@media(max-width:520px){.hero{background:radial-gradient(circle at 90% 0,rgba(25,198,243,.18),transparent 32%),linear-gradient(145deg,#f7faff,#eef4ff)}.why-grid>div{padding:12px}.footer{margin-top:0}}

/* V5.1 — stronger Zelmric identity + calculator content polish */
body{background:#f7f9fd}
main>section:first-child:not(.hero):not(.support-hero):not(.guide-hero){background:radial-gradient(circle at 88% 0,rgba(25,198,243,.10),transparent 23%),radial-gradient(circle at 12% 4%,rgba(118,87,255,.08),transparent 22%),linear-gradient(180deg,#f6f9ff 0,#fff 460px);padding-bottom:34px}
.section:not(.alt){background:#fff}.section.alt{background:linear-gradient(135deg,#edf3fc 0%,#f4f7fd 58%,#eef8fb 100%)}
.tool-card{border-width:1px;box-shadow:0 12px 30px rgba(24,54,110,.075)}
.tool-card .icon{filter:drop-shadow(0 5px 8px rgba(30,63,120,.12))}
.calc-shell{padding:10px;border-radius:26px;background:linear-gradient(135deg,rgba(47,92,255,.055),rgba(25,198,243,.045));border:1px solid rgba(202,216,239,.72)}
.calc-shell .panel{margin:0;border-radius:18px}.panel{background:rgba(255,255,255,.96)}
.result{background:radial-gradient(circle at 90% 0,rgba(25,198,243,.18),transparent 30%),radial-gradient(circle at 12% 100%,rgba(118,87,255,.09),transparent 32%),linear-gradient(145deg,#eef5ff,#f7f4ff 54%,#eefcff);border-color:#cbdcf5}
.result-title{color:#315cf4}.stats{border-top-color:#dbe5f4}.note{box-shadow:0 7px 20px rgba(30,67,130,.045)}
.content{max-width:900px}.content.seo-depth,.content .seo-depth{position:relative}
.content h2,.seo-depth h2{color:#0a1538}.content p,.content li,.seo-depth p{color:#4b5a78}
.faq details{border-color:#d8e3f3}
.related{gap:14px}.related a{position:relative;overflow:hidden;background:linear-gradient(145deg,#fff,#f5f8ff);border-color:#d5e1f2;box-shadow:0 7px 20px rgba(26,62,121,.05);padding:16px 17px}.related a:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(#315cf4,#19c6f3)}.related a:hover{transform:translateY(-2px);box-shadow:0 13px 28px rgba(26,62,121,.10)}
.footer{margin-top:0}
@media(max-width:850px){.calc-shell{padding:7px}}

.resource-section{max-width:none;margin:10px 0 8px;padding:28px;border:1px solid #dbe5f4;border-radius:22px;background:radial-gradient(circle at 95% 0,rgba(25,198,243,.10),transparent 26%),linear-gradient(135deg,#f8fbff,#f4f6ff);box-shadow:0 12px 32px rgba(26,62,121,.055)}
.resource-section h2{margin-top:0}.resource-section>p{margin-top:0;max-width:720px}.resource-section .related{margin-bottom:0;grid-template-columns:repeat(3,1fr)}
@media(max-width:850px){.resource-section .related{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.resource-section{padding:20px}.resource-section .related{grid-template-columns:1fr}}