:root{--bg:#f7f9fc;--card:#fff;--text:#122033;--muted:#5d6b80;--brand:#2563eb;--brand2:#16a34a;--line:#dbe3ef;--soft:#eef5ff;--warn:#fff7ed;--shadow:0 14px 40px rgba(15,23,42,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1120px,92%);margin:auto}.skip{position:absolute;left:-999px;top:auto}.skip:focus{left:16px;top:16px;background:#fff;padding:10px;border:2px solid var(--brand);z-index:99}.topbar{background:#0f172a;color:#fff;font-size:.9rem}.topbar .container{display:flex;justify-content:center;padding:8px 0;text-align:center}.header{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.logo{font-weight:800;color:var(--text);font-size:1.06rem;display:flex;align-items:center;gap:8px}.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#7c3aed);display:grid;place-items:center;color:#fff}.navlinks{display:flex;gap:18px;align-items:center;font-size:.95rem}.navlinks a{color:#24344d}.menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 10px}.hero{padding:54px 0 26px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center}.badge{display:inline-flex;gap:8px;align-items:center;background:var(--soft);color:#1d4ed8;border:1px solid #cfe0ff;padding:7px 12px;border-radius:999px;font-weight:700;font-size:.9rem}.hero h1{font-size:clamp(2.15rem,5vw,4.25rem);line-height:1.04;margin:18px 0}.lead{font-size:1.18rem;color:var(--muted);max-width:700px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:13px;border:1px solid var(--line);font-weight:800;cursor:pointer}.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.btn.secondary{background:#fff;color:var(--text)}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.tool-card{padding:22px}.tool-card h2,.section h2{margin-top:0}.ad-slot{border:1px dashed #9aa7b8;background:#fff;min-height:90px;border-radius:14px;display:grid;place-items:center;color:#64748b;font-size:.9rem;margin:20px 0;padding:12px;text-align:center}.ad-slot.large{min-height:250px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-weight:800;font-size:.92rem}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px;font:inherit}.inline{display:flex;gap:10px;align-items:end}.result{margin-top:18px;padding:18px;border-radius:18px;background:#f0fdf4;border:1px solid #bbf7d0}.result strong{font-size:1.8rem;display:block;color:#166534}.muted{color:var(--muted)}.section{padding:34px 0}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.feature{padding:20px}.feature h3{margin-top:0}.content{max-width:840px}.content h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.1}.content h2{margin-top:34px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}table{width:100%;border-collapse:collapse;min-width:640px}th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}th{background:#f8fafc}.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;margin:12px 0;padding:15px}.faq summary{font-weight:800;cursor:pointer}.footer{margin-top:40px;background:#0f172a;color:#dbeafe;padding:38px 0}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:22px}.footer a{color:#dbeafe}.small{font-size:.9rem}.pill-row{display:flex;flex-wrap:wrap;gap:10px}.pill{background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:999px;color:#334155}.notice{background:var(--warn);border:1px solid #fed7aa;border-radius:16px;padding:14px}.toc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.toc ul{margin:0;padding-left:20px}.score-list{display:grid;gap:10px}.score-row{display:grid;grid-template-columns:1fr auto;gap:12px;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff}.cookie{position:fixed;left:16px;right:16px;bottom:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:16px;display:none;z-index:50}.cookie.show{display:block}.cookie-inner{display:flex;align-items:center;justify-content:space-between;gap:14px}.cookie button{white-space:nowrap}@media(max-width:820px){.menu-btn{display:block}.navlinks{position:absolute;left:4%;right:4%;top:66px;display:none;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.navlinks.open{display:flex}.hero-grid,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.hero{padding-top:36px}.cookie-inner{display:block}.cookie button{margin-top:12px;width:100%}}@media(max-width:520px){.inline{display:block}.inline .btn{width:100%;margin-top:10px}.hero-actions .btn{width:100%}.tool-card{padding:16px}}
/* Professional GPA homepage upgrade */
.topbar-inner{display:flex;justify-content:space-between!important;gap:18px;flex-wrap:wrap}.hero-pro{background:radial-gradient(circle at 10% 10%,#e0f2fe 0,#f7f9fc 35%,#eef5ff 100%);padding-bottom:44px}.hero-grid.wide{grid-template-columns:.95fr 1.05fr}.calculator-shell{padding:24px;border-radius:26px;box-shadow:0 24px 70px rgba(15,23,42,.12)}.tool-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.tool-head h2{margin:.2rem 0 0}.mini-label{display:inline-flex;color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:999px;padding:4px 10px;font-weight:800;font-size:.78rem;letter-spacing:.02em;text-transform:uppercase}.status-pill{display:inline-flex;background:#ecfdf5;color:#166534;border:1px solid #bbf7d0;border-radius:999px;padding:6px 10px;font-weight:800;font-size:.85rem;white-space:nowrap}.trust-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.trust-strip span{background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:700;color:#334155}.compact-table{border-radius:18px}.compact-table table{min-width:720px}.entry-table th{font-size:.82rem}.entry-table td{padding:8px}.entry-table input,.entry-table select{width:100%;border:1px solid #dbe3ef;border-radius:10px;padding:9px;font:inherit;background:#fff}.icon-btn{width:34px;height:34px;border:0;border-radius:10px;background:#fee2e2;color:#991b1b;font-weight:900;cursor:pointer}.calc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.btn.ghost{background:transparent;color:#475569}.pro-result strong{font-size:2.1rem}.icon-card span{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#eff6ff;color:#1d4ed8;font-weight:900;margin-bottom:14px}.split-panel{background:#fff}.rich-copy{align-self:center}.check-list{list-style:none;padding:0;margin:0 0 18px}.check-list li{position:relative;padding-left:30px;margin:10px 0}.check-list li:before{content:'✓';position:absolute;left:0;top:0;color:#16a34a;font-weight:900}.content-card{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:28px}.steps{counter-reset:item;list-style:none;padding:0}.steps li{background:#f8fafc;border:1px solid var(--line);border-radius:16px;padding:14px 16px;margin:12px 0}.grade-cloud{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 18px}.grade-cloud span{background:#f8fafc;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800}.formula-box{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.formula-box div{background:#f8fafc;border:1px solid var(--line);border-radius:16px;padding:14px}.formula-box strong{display:block;color:#0f172a}.formula-box span{color:#475569}@media(max-width:920px){.hero-grid.wide{grid-template-columns:1fr}.formula-box{grid-template-columns:1fr 1fr}}@media(max-width:560px){.topbar-inner{justify-content:center!important;text-align:center}.calculator-shell{padding:16px}.calc-actions .btn{width:100%}.formula-box{grid-template-columns:1fr}.tool-head{display:block}.status-pill{margin-top:10px}.compact-table table{min-width:620px}}