:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #EEF2FF;
    --primary-soft: #E0E7FF;
    --text: #0F172A;
    --text-muted: #64748B;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --border: #E2E8F0;
    --success: #059669;
    --success-bg: #ECFDF5;
    --danger: #DC2626;
    --danger-bg: #FEF2F2;
    --warning: #D97706;
    --warning-bg: #FFFBEB;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
    --font: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; vertical-align: middle; }

h1, h2, h3, h4 { line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 0.5em; font-weight: 800; }
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); text-decoration: underline; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }

.skip-link {
    position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff;
    padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0; z-index: 200;
}
.skip-link:focus { left: 0; color: #fff; }

.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav-wrap { display: flex; align-items: center; gap: 20px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.3rem; color: var(--text); letter-spacing: -0.03em; }
.brand:hover { text-decoration: none; color: var(--text); }
.brand-logo { height: 35px; width: auto; display: block; }
.brand-name { white-space: nowrap; }

.main-nav { margin-left: 8px; }
.nav-list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-list > li { position: relative; }
.nav-list a, .nav-drop-toggle {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: var(--radius-sm);
    color: var(--text-muted); font-weight: 600; font-size: 0.95rem;
    background: none; border: 0; cursor: pointer; font-family: inherit;
}
.nav-list a:hover, .nav-drop-toggle:hover { color: var(--text); background: var(--primary-light); text-decoration: none; }
.dropdown {
    display: none; position: absolute; top: calc(100% + 6px); left: 0;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); padding: 8px; min-width: 240px; z-index: 110;
}
.has-dropdown.open .dropdown, .has-dropdown:hover .dropdown { display: block; }
.dropdown a { display: block; padding: 9px 14px; border-radius: var(--radius-sm); color: var(--text); font-weight: 500; }
.dropdown a:hover { background: var(--primary-light); color: var(--primary-dark); }

.nav-search { display: flex; align-items: center; margin-left: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; transition: border-color .15s, box-shadow .15s; }
.nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.nav-search input { border: 0; outline: 0; padding: 9px 6px 9px 16px; width: 190px; font-size: 0.92rem; font-family: inherit; background: transparent; color: var(--text); }
.nav-search button { border: 0; background: transparent; color: var(--text-muted); padding: 8px 14px 8px 6px; cursor: pointer; display: flex; }
.nav-search button:hover { color: var(--primary); }

.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; padding: 10px; background: none; border: 0; cursor: pointer; border-radius: var(--radius-sm); }
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.alert { margin: 16px 0; padding: 13px 18px; border-radius: var(--radius-md); font-weight: 500; border: 1px solid transparent; }
.alert-success { background: var(--success-bg); color: var(--success); border-color: #A7F3D0; }
.alert-error { background: var(--danger-bg); color: var(--danger); border-color: #FECACA; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border-color: var(--primary-soft); }

.hero { padding: 64px 0 48px; text-align: center; background: linear-gradient(180deg, var(--primary-light) 0%, var(--background) 100%); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 12px; font-weight: 900; letter-spacing: -0.03em; }
.hero .tagline { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-muted); max-width: 640px; margin: 0 auto 28px; line-height: 1.7; }
.hero-badge { display: inline-block; padding: 6px 16px; background: var(--primary); color: #fff; border-radius: 999px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 20px; }
.hero-search { display: flex; max-width: 560px; margin: 0 auto; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 5px; box-shadow: var(--shadow-md); }
.hero-search input { flex: 1; border: 0; outline: 0; background: transparent; padding: 12px 14px 12px 20px; font-size: 1rem; font-family: inherit; color: var(--text); min-width: 0; }
.hero-trust { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 28px; flex-wrap: wrap; }
.trust-item { font-size: 0.88rem; font-weight: 600; color: var(--text-muted); }
.trust-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--border); }
.hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 36px; flex-wrap: wrap; }
.hero-stat strong { display: block; font-size: 1.6rem; color: var(--primary); letter-spacing: -0.02em; }
.hero-stat span { color: var(--text-muted); font-size: 0.88rem; }

.section-alt { background: var(--background); }
.section-cta { background: linear-gradient(135deg, #4F46E5 0%, #6366F1 50%, #818CF8 100%); padding: 56px 0; }
.cta-card { text-align: center; color: #fff; max-width: 640px; margin: 0 auto; }
.cta-card h2 { color: #fff; font-size: 1.8rem; }
.cta-card p { color: rgba(255,255,255,0.85); font-size: 1.05rem; margin-bottom: 24px; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-buttons .btn-primary { background: #fff; color: var(--primary-dark); }
.cta-buttons .btn-primary:hover { background: #f0f0ff; }
.cta-buttons .btn-light { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.3); }
.cta-buttons .btn-light:hover { background: rgba(255,255,255,0.25); color: #fff; text-decoration: none; }

.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial-card { padding: 28px; text-align: left; }
.testimonial-stars { color: #F59E0B; font-size: 1.1rem; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 16px; font-style: italic; }
.testimonial-author { font-size: 0.88rem; }
.testimonial-author strong { color: var(--text); }
.testimonial-author span { color: var(--text-muted); }

.section { padding: 48px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 36px; }
.section-head p { color: var(--text-muted); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .15s ease;
}
a.card { display: block; color: inherit; }
a.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); text-decoration: none; }

.cat-card { text-align: left; }
.cat-icon {
    width: 52px; height: 52px; border-radius: 14px; background: var(--primary-light);
    display: flex; align-items: center; justify-content: center; color: var(--primary); margin-bottom: 16px;
}
.cat-card h3 { margin-bottom: 6px; font-size: 1.1rem; }
.cat-card p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 10px; }
.cat-count { font-size: 0.85rem; font-weight: 700; color: var(--primary); }

.calc-link-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.calc-link {
    display: flex; align-items: center; gap: 10px; padding: 13px 16px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
    color: var(--text); font-weight: 600; font-size: 0.94rem; transition: border-color .15s, box-shadow .15s;
}
.calc-link:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); color: var(--primary-dark); text-decoration: none; }
.calc-link svg { flex-shrink: 0; color: var(--primary); }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 26px; }
.chip { padding: 8px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; font-weight: 600; font-size: 0.88rem; color: var(--text-muted); }
.chip:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

.feature-box { text-align: center; padding: 28px 22px; }
.feature-box .cat-icon { margin: 0 auto 16px; }
.feature-box h3 { font-size: 1.08rem; }
.feature-box p { color: var(--text-muted); font-size: 0.93rem; margin: 0; }

.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 18px 0 0; font-size: 0.88rem; color: var(--text-muted); list-style: none; margin: 0; }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before { content: "/"; color: var(--border); }
.breadcrumb a { color: var(--text-muted); font-weight: 500; }
.breadcrumb a:hover { color: var(--primary); }
.page-head { padding: 22px 0 8px; }
.page-head h1 { margin-bottom: 8px; }
.page-head .lead { color: var(--text-muted); font-size: 1.08rem; max-width: 720px; }

.calc-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; align-items: start; padding-bottom: 40px; }
.calc-main { min-width: 0; }

.calc-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md); overflow: hidden; margin: 18px 0 28px;
}
.calc-card-head { padding: 22px 26px 0; }
.calc-card-head h2 { font-size: 1.25rem; margin-bottom: 4px; }
.calc-card-head p { color: var(--text-muted); font-size: 0.95rem; margin: 0; }
.calc-card-body { padding: 22px 26px 26px; }

.variant-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.variant-tab {
    padding: 8px 15px; border-radius: 999px; border: 1px solid var(--border);
    background: var(--background); color: var(--text-muted); font-weight: 600; font-size: 0.87rem;
    cursor: pointer; font-family: inherit; transition: all .15s;
}
.variant-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.variant-tab:not(.active):hover { border-color: var(--primary); color: var(--primary); }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.field label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
    width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm);
    font-size: 1rem; font-family: inherit; color: var(--text); background: var(--surface);
    transition: border-color .15s, box-shadow .15s; min-height: 46px;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: 0; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}
.field .hint { font-size: 0.8rem; color: var(--text-muted); margin-top: 5px; }
.field-error { color: var(--danger); font-size: 0.83rem; margin-top: 5px; display: none; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--danger); }
.field.invalid .field-error { display: block; }

.check-field { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.92rem; cursor: pointer; padding-top: 30px; }
.check-field input { width: 19px; height: 19px; accent-color: var(--primary); cursor: pointer; }

.calc-actions { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 26px; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.98rem;
    font-family: inherit; cursor: pointer; border: 1px solid transparent; transition: all .15s;
    min-height: 47px; text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; text-decoration: none; }
.btn-outline { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); color: var(--primary-dark); }
.btn-sm { padding: 8px 16px; min-height: 38px; font-size: 0.88rem; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #B91C1C; color: #fff; }

.result-panel {
    margin-top: 24px; background: var(--primary-light); border: 1px solid var(--primary-soft);
    border-radius: var(--radius-md); padding: 20px 22px; display: none;
}
.result-panel.visible { display: block; animation: fadeIn .25s ease; }
.result-panel.error { background: var(--danger-bg); border-color: #FECACA; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.result-title { font-weight: 700; font-size: 0.9rem; color: var(--primary-dark); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.result-panel.error .result-title { color: var(--danger); }
.copy-btn { background: none; border: 0; color: var(--primary-dark); cursor: pointer; font-size: 0.8rem; font-weight: 600; padding: 4px 10px; border-radius: 6px; border: 1px solid var(--primary-soft); font-family: inherit; }
.copy-btn:hover { background: var(--primary-soft); }
.result-rows { display: flex; flex-direction: column; gap: 10px; }
.result-row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.result-row .r-label { color: var(--text-muted); font-size: 0.93rem; font-weight: 500; }
.result-row .r-value { font-weight: 800; font-size: 1.15rem; word-break: break-all; text-align: right; }
.result-row.primary .r-value { font-size: 1.7rem; color: var(--primary-dark); }
.result-note { margin-top: 12px; font-size: 0.86rem; color: var(--text-muted); border-top: 1px dashed var(--primary-soft); padding-top: 10px; }
.result-panel.error .result-note { color: var(--danger); border-color: #FECACA; }

.keypad { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-top: 16px; }
.keypad button {
    padding: 11px 4px; border: 1px solid var(--border); background: var(--background);
    border-radius: var(--radius-sm); font-family: inherit; font-size: 0.95rem; font-weight: 600;
    cursor: pointer; color: var(--text); transition: all .1s; min-height: 44px;
}
.keypad button:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.keypad button.fn { color: var(--primary); }
.keypad button.op { background: var(--primary-light); color: var(--primary-dark); border-color: var(--primary-soft); }
.keypad button.eq { background: var(--primary); color: #fff; border-color: var(--primary); }
.keypad button.eq:hover { background: var(--primary-dark); }

.preset-btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.preset-btn { padding: 6px 13px; border-radius: 999px; border: 1px solid var(--border); background: var(--background); font-size: 0.83rem; font-weight: 600; cursor: pointer; font-family: inherit; color: var(--text-muted); }
.preset-btn:hover { border-color: var(--primary); color: var(--primary); }

.content-section { padding: 8px 0 40px; }
.prose { max-width: 800px; }
.prose h2 { margin-top: 36px; padding-top: 8px; }
.prose h2:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 1em; }
.prose li { margin-bottom: 6px; }
.prose .formula-block {
    background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm); padding: 16px 20px; font-family: ui-monospace, "SF Mono", Consolas, monospace;
    font-size: 0.98rem; margin: 0 0 1em; overflow-x: auto; white-space: pre-wrap;
}
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 1em; background: var(--surface); border-radius: var(--radius-sm); overflow: hidden; }
.prose th, .prose td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; font-size: 0.94rem; }
.prose th { background: var(--background); font-weight: 700; }

.faq-list { max-width: 800px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
.faq-item summary {
    padding: 16px 20px; font-weight: 700; cursor: pointer; list-style: none;
    display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.99rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--primary); font-weight: 400; flex-shrink: 0; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 20px 16px; color: var(--text-muted); }

.aside-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
.aside-box h3 { font-size: 1.02rem; margin-bottom: 12px; }
.aside-box ul { list-style: none; margin: 0; padding: 0; }
.aside-box li { margin-bottom: 8px; }
.aside-box li a { font-size: 0.92rem; font-weight: 500; display: block; padding: 6px 0; border-bottom: 1px dashed var(--border); }
.aside-box li:last-child a { border-bottom: 0; }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); }
table.data-table { width: 100%; border-collapse: collapse; min-width: 520px; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.93rem; }
.data-table th { background: var(--background); font-weight: 700; white-space: nowrap; }
.data-table tr:last-child td { border-bottom: 0; }

.ad-slot { margin: 24px auto; text-align: center; min-height: 90px; }
.ad-slot ins { display: block !important; }

.site-footer { background: #0F172A; color: #CBD5E1; margin-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding: 52px 20px 36px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { font-size: 0.92rem; color: #94A3B8; margin-top: 14px; max-width: 280px; }
.footer-col h3 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: #94A3B8; font-size: 0.91rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1E293B; padding: 20px 0; }
.footer-bottom p { margin: 0 0 4px; font-size: 0.85rem; color: #64748B; }
.footer-disclaimer { max-width: 760px; }

.error-page { text-align: center; padding: 80px 20px; }
.error-page h1 { font-size: 4rem; color: var(--primary); margin-bottom: 8px; }

@media (max-width: 1024px) {
    .calc-layout { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
    .testimonial-grid { grid-template-columns: 1fr; }
    .nav-toggle { display: flex; }
    .main-nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: var(--surface); border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg); margin: 0; padding: 12px 20px 20px; max-height: calc(100vh - 68px); overflow-y: auto;
    }
    .main-nav.open { display: block; }
    .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
    .nav-list a, .nav-drop-toggle { width: 100%; justify-content: space-between; padding: 12px 14px; font-size: 1rem; }
    .dropdown { display: block; position: static; box-shadow: none; border: 0; border-left: 2px solid var(--primary-soft); border-radius: 0; margin: 0 0 6px 14px; padding: 0 0 0 6px; min-width: 0; }
    .has-dropdown:not(.open) .dropdown { display: none; }
    .nav-search { margin: 14px 0 0; width: 100%; }
    .nav-search input { width: 100%; flex: 1; }
}

@media (max-width: 720px) {
    .hero { padding: 44px 0 36px; }
    .hero-stats { gap: 22px; }
    .hero-trust { gap: 10px; }
    .cta-card h2 { font-size: 1.4rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .section { padding: 36px 0; }
    .calc-card-body, .calc-card-head { padding-left: 18px; padding-right: 18px; }
    .result-row.primary .r-value { font-size: 1.4rem; }
    .keypad { grid-template-columns: repeat(4, 1fr); }
    .footer-grid { grid-template-columns: 1fr; gap: 26px; padding: 40px 20px 28px; }
    .form-grid { grid-template-columns: 1fr; }
    .check-field { padding-top: 0; }
}