/* ==========================================================================
   Spreadsheet Online Editor — SEOWebChecker.com
   Design: "Ledger" — a working accountant's ledger reimagined for the web.
   ========================================================================== */

:root{
  --bg: #F6F7F3;
  --paper: #FFFFFF;
  --paper-alt: #F0F2EC;
  --ink: #17211B;
  --ink-soft: #4B5A50;
  --line: #DBE1D6;
  --line-strong: #C2CBBE;
  --accent: #2E6B4F;      /* ledger green */
  --accent-ink: #FFFFFF;
  --accent-soft: #E4EFE7;
  --amber: #C7752B;       /* formula / warn */
  --amber-soft: #F7E8DA;
  --danger: #B3402C;
  --danger-soft: #F8E3DE;
  --shadow: 0 1px 2px rgba(23,33,27,.05), 0 6px 20px -8px rgba(23,33,27,.12);
  --radius: 10px;
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --header-h: 72px;
}

[data-theme="dark"]{
  --bg: #10140F;
  --paper: #171D17;
  --paper-alt: #1D251D;
  --ink: #E7ECE3;
  --ink-soft: #9CAA9A;
  --line: #2A342A;
  --line-strong: #38452F;
  --accent: #4FAE7C;
  --accent-ink: #0C130D;
  --accent-soft: #1B3327;
  --amber: #E2953F;
  --amber-soft: #33271A;
  --danger: #E2685A;
  --danger-soft: #33201C;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px -10px rgba(0,0,0,.5);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background .25s ease, color .25s ease;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button{font-family:inherit;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- Skip link ---------- */
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:10px 16px;z-index:9999;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

/* ---------- Top utility bar ---------- */
.util-bar{background:var(--paper-alt);border-bottom:1px solid var(--line);font-size:12.5px;color:var(--ink-soft);}
.util-bar .container{display:flex;justify-content:space-between;align-items:center;height:34px;}
.util-bar .crumbs a{text-decoration:none;color:var(--ink-soft);}
.util-bar .crumbs a:hover{color:var(--accent);}
.util-bar .crumbs span{margin:0 6px;color:var(--line-strong);}
.util-bar .crumbs .current{color:var(--ink);font-weight:600;}

/* ---------- Header / Nav ---------- */
header.site-header{
  position:sticky;top:0;z-index:500;
  background:color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:16px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:9px;background:var(--accent);
  display:flex;align-items:center;justify-content:center;color:var(--accent-ink);
  font-family:var(--font-display);font-weight:700;font-size:15px;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-family:var(--font-display);font-weight:700;font-size:16px;color:var(--ink);}
.brand-text span{font-size:10.5px;color:var(--ink-soft);letter-spacing:.04em;text-transform:uppercase;}

nav.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
nav.main-nav > ul{display:flex;list-style:none;margin:0;padding:0;gap:2px;}
nav.main-nav > ul > li{position:relative;}
nav.main-nav > ul > li > a, .mega-toggle{
  display:flex;align-items:center;gap:5px;padding:10px 14px;border-radius:8px;
  text-decoration:none;color:var(--ink);font-size:14px;font-weight:500;
  background:transparent;border:none;cursor:pointer;white-space:nowrap;
}
nav.main-nav > ul > li > a:hover, .mega-toggle:hover, .mega-toggle[aria-expanded="true"]{background:var(--paper-alt);color:var(--accent);}
.mega-toggle svg{width:13px;height:13px;transition:transform .18s ease;}
.mega-toggle[aria-expanded="true"] svg{transform:rotate(180deg);}

.mega-menu{
  position:absolute;top:100%;left:50%;transform:translateX(-50%);
  width:min(760px,90vw);background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;
  display:none;grid-template-columns:repeat(3,1fr);gap:22px;z-index:600;
}
.mega-menu.open{display:grid;}
.mega-col h4{margin:0 0 10px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);font-family:var(--font-display);}
.mega-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.mega-col a{display:block;padding:6px 8px;border-radius:6px;text-decoration:none;font-size:13.5px;color:var(--ink);}
.mega-col a:hover{background:var(--accent-soft);color:var(--accent);}

.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.theme-toggle{
  width:38px;height:38px;border-radius:8px;border:1px solid var(--line);background:var(--paper);
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.theme-toggle svg{width:17px;height:17px;}
.theme-toggle .icon-moon{display:none;}
[data-theme="dark"] .theme-toggle .icon-sun{display:none;}
[data-theme="dark"] .theme-toggle .icon-moon{display:block;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:8px;font-weight:600;font-size:14px;
  text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .12s ease, opacity .12s ease;
}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{opacity:.92;}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:7px 12px;font-size:13px;border-radius:7px;}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.btn-danger{background:var(--danger);color:#fff;}

.hamburger{display:none;width:38px;height:38px;border-radius:8px;border:1px solid var(--line);background:var(--paper);cursor:pointer;position:relative;}
.hamburger span, .hamburger span::before, .hamburger span::after{content:'';position:absolute;left:9px;right:9px;height:2px;background:var(--ink);border-radius:2px;}
.hamburger span{top:18px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.4);display:none;
}
.mobile-drawer.open{display:block;}
.mobile-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(320px,86vw);background:var(--paper);
  padding:18px;overflow-y:auto;box-shadow:var(--shadow);
}
.mobile-panel .close-drawer{margin-bottom:14px;}
.mobile-panel details{border-bottom:1px solid var(--line);padding:8px 0;}
.mobile-panel summary{font-weight:600;cursor:pointer;padding:8px 4px;font-size:14.5px;list-style:none;display:flex;justify-content:space-between;}
.mobile-panel summary::-webkit-details-marker{display:none;}
.mobile-panel ul{list-style:none;margin:6px 0 8px;padding:0 4px;}
.mobile-panel a{display:block;padding:7px 4px;text-decoration:none;color:var(--ink-soft);font-size:13.5px;}
.mobile-panel > ul.top-links{padding:0;margin:0 0 10px;}
.mobile-panel > ul.top-links > li > a{font-weight:600;color:var(--ink);font-size:14.5px;}

/* ---------- Hero ---------- */
.hero{padding:56px 0 48px;position:relative;overflow:hidden;}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--accent);
  background:var(--accent-soft);padding:6px 12px;border-radius:999px;margin-bottom:16px;
}
h1{font-family:var(--font-display);font-size:clamp(30px,4.4vw,46px);line-height:1.08;margin:0 0 16px;letter-spacing:-.01em;}
h1 em{font-style:normal;color:var(--accent);}
.hero p.lead{font-size:16.5px;line-height:1.65;color:var(--ink-soft);max-width:56ch;margin:0 0 24px;}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px;}
.hero-trust{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--ink-soft);}
.hero-trust strong{color:var(--ink);font-family:var(--font-display);font-size:16px;display:block;}

/* Ledger signature visual */
.ledger-visual{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;}
.ledger-visual .lv-bar{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--paper-alt);}
.ledger-visual .lv-dot{width:9px;height:9px;border-radius:50%;background:var(--line-strong);}
.ledger-visual table{width:100%;border-collapse:collapse;font-size:12.5px;font-variant-numeric:tabular-nums;}
.ledger-visual th, .ledger-visual td{border:1px solid var(--line);padding:7px 9px;text-align:right;}
.ledger-visual th{background:var(--paper-alt);color:var(--ink-soft);font-weight:600;text-align:center;}
.ledger-visual td:first-child, .ledger-visual th:first-child{text-align:center;color:var(--ink-soft);background:var(--paper-alt);width:32px;}
.ledger-visual .lv-formula-cell{background:var(--amber-soft);color:var(--amber);font-weight:700;position:relative;}
.ledger-visual .lv-caption{padding:10px 12px;font-size:12px;color:var(--ink-soft);border-top:1px solid var(--line);}
.ledger-visual .lv-caption code{background:var(--paper-alt);padding:2px 6px;border-radius:5px;color:var(--accent);}

/* ---------- Section shell ---------- */
section{padding:60px 0;}
.section-head{max-width:640px;margin:0 auto 36px;text-align:center;}
.section-head .eyebrow{margin-bottom:12px;}
h2{font-family:var(--font-display);font-size:clamp(24px,3vw,34px);margin:0 0 10px;letter-spacing:-.01em;}
.section-head p{color:var(--ink-soft);font-size:15.5px;line-height:1.6;margin:0;}
.alt-bg{background:var(--paper-alt);}

/* ---------- Editor App ---------- */
.editor-shell{background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;}
.editor-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--paper-alt);}
.tb-group{display:flex;gap:4px;align-items:center;padding:0 8px;border-right:1px solid var(--line);}
.tb-group:last-child{border-right:none;}
.tb-btn{
  width:32px;height:32px;border-radius:7px;border:1px solid transparent;background:transparent;
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.tb-btn svg{width:15px;height:15px;}
.tb-btn:hover{background:var(--paper);border-color:var(--line);}
.tb-btn.active{background:var(--accent-soft);color:var(--accent);border-color:var(--accent);}
.tb-select, .tb-color{height:32px;border-radius:7px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:13px;padding:0 6px;}
.tb-sep{width:1px;height:22px;background:var(--line);margin:0 4px;}

.formula-bar{display:flex;align-items:stretch;border-bottom:1px solid var(--line);}
.formula-bar .cell-ref{
  width:84px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-body);font-weight:700;font-size:13px;color:var(--accent);
  border-right:1px solid var(--line);background:var(--paper-alt);
}
.formula-bar .fx-icon{width:34px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);font-style:italic;font-family:serif;border-right:1px solid var(--line);}
.formula-bar input{flex:1;border:none;background:var(--paper);padding:0 12px;font-size:13.5px;color:var(--ink);outline:none;font-family:'Inter',monospace;}

.grid-wrap{overflow:auto;max-height:520px;position:relative;}
table.sheet{border-collapse:collapse;width:auto;min-width:100%;font-size:13px;table-layout:fixed;}
table.sheet th{
  position:sticky;top:0;background:var(--paper-alt);border:1px solid var(--line);
  padding:6px 4px;text-align:center;font-weight:600;color:var(--ink-soft);z-index:2;user-select:none;position:sticky;
}
table.sheet th.row-head{position:sticky;left:0;top:auto;z-index:3;width:42px;}
table.sheet thead th.corner{position:sticky;left:0;top:0;z-index:4;width:42px;}
table.sheet td.row-head{
  position:sticky;left:0;background:var(--paper-alt);border:1px solid var(--line);
  text-align:center;color:var(--ink-soft);font-weight:600;z-index:1;width:42px;user-select:none;
}
table.sheet td{border:1px solid var(--line);padding:0;height:30px;min-width:96px;position:relative;background:var(--paper);overflow:hidden;}
table.sheet td .cell-inner{
  width:100%;height:100%;padding:5px 7px;outline:none;white-space:pre;overflow:hidden;text-overflow:ellipsis;
  font-variant-numeric:tabular-nums;cursor:cell;box-sizing:border-box;
}
table.sheet td.editing .cell-inner{overflow:visible;position:relative;z-index:6;min-width:100%;width:max-content;max-width:420px;box-shadow:0 2px 10px rgba(0,0,0,.15);background:var(--paper);}

/* Resize handles */
.col-resize-handle{position:absolute;right:-3px;top:0;width:7px;height:100%;cursor:col-resize;z-index:6;touch-action:none;}
.col-resize-handle:hover, .col-resize-handle.active{background:var(--accent);opacity:.5;}
.row-resize-handle{position:absolute;left:0;bottom:-3px;height:7px;width:100%;cursor:row-resize;z-index:6;touch-action:none;}
.row-resize-handle:hover, .row-resize-handle.active{background:var(--accent);opacity:.5;}
th.row-head, td.row-head{position:relative;}

/* Overflow "peek" affordance: long content gets a subtle fade + expands on focus/hover via title tooltip already; add visual cue */
table.sheet td .cell-inner.has-overflow::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:14px;pointer-events:none;
  background:linear-gradient(to right, transparent, var(--paper) 85%);
}
table.sheet td.selected{outline:2px solid var(--accent);outline-offset:-2px;background:var(--accent-soft);z-index:1;}
table.sheet td.range-selected{background:var(--accent-soft);}
table.sheet td.editing .cell-inner{cursor:text;background:var(--paper);white-space:pre-wrap;}
table.sheet td .cell-inner.is-formula{color:var(--amber);font-weight:600;}
table.sheet td .cell-inner.is-number{text-align:right;}
table.sheet td .cell-inner.is-error{color:var(--danger);}
th[data-col-selected], td[data-row-selected]{background:var(--accent-soft) !important;}

.status-bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:9px 14px;border-top:1px solid var(--line);background:var(--paper-alt);font-size:12.5px;color:var(--ink-soft);}
.status-bar .stat-group{display:flex;gap:16px;flex-wrap:wrap;}
.status-bar strong{color:var(--ink);}

table.sheet tr.row-hidden{display:none;}

.filter-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 14px;border-top:1px solid var(--line);background:var(--paper);}
.filter-row input{
  flex:1;min-width:160px;height:32px;border-radius:7px;border:1px solid var(--line);background:var(--paper-alt);
  padding:0 10px;font-size:13px;color:var(--ink);outline:none;
}
.filter-row input:focus{border-color:var(--accent);}
.filter-row .filter-label{font-size:12.5px;color:var(--ink-soft);white-space:nowrap;}

.import-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:14px;border-top:1px dashed var(--line);}
.import-row label.file-label{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:8px;border:1px solid var(--line-strong);
  cursor:pointer;font-size:13.5px;font-weight:600;
}
.import-row label.file-label:hover{border-color:var(--accent);color:var(--accent);}
.import-row input[type=file]{display:none;}
.import-row .hint{font-size:12px;color:var(--ink-soft);}

.validation-msg{display:none;margin:0 14px 14px;padding:10px 14px;border-radius:8px;background:var(--danger-soft);color:var(--danger);font-size:13px;border:1px solid color-mix(in srgb, var(--danger) 30%, transparent);}
.validation-msg.show{display:block;}

.result-section{padding-top:0;}
.result-actions{display:flex;flex-wrap:wrap;gap:10px;padding:14px;border-top:1px solid var(--line);align-items:center;}
.result-actions .spacer{flex:1;}

/* Toast */
.toast-stack{position:fixed;bottom:20px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px;}
.toast{background:var(--ink);color:var(--bg);padding:11px 16px;border-radius:8px;font-size:13.5px;box-shadow:var(--shadow);opacity:0;transform:translateY(8px);transition:all .25s ease;max-width:320px;}
.toast.show{opacity:1;transform:translateY(0);}

/* ---------- Features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.feature-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px;}
.feature-card .f-icon{
  width:42px;height:42px;border-radius:10px;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.feature-card .f-icon svg{width:20px;height:20px;}
.feature-card h3{font-family:var(--font-display);font-size:16.5px;margin:0 0 8px;}
.feature-card p{font-size:13.8px;color:var(--ink-soft);line-height:1.55;margin:0;}

/* ---------- How it works ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step-card{position:relative;padding:24px 20px;background:var(--paper);border:1px solid var(--line);border-radius:12px;}
.step-num{
  font-family:var(--font-display);font-size:13px;font-weight:700;color:var(--accent);
  width:30px;height:30px;border:1.5px solid var(--accent);border-radius:8px;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step-card h3{font-family:var(--font-display);font-size:15.5px;margin:0 0 6px;}
.step-card p{font-size:13.5px;color:var(--ink-soft);margin:0;line-height:1.5;}

/* ---------- Reference links before FAQ ---------- */
.ref-links{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.ref-links a{
  display:block;padding:11px 13px;background:var(--paper);border:1px solid var(--line);border-radius:8px;
  text-decoration:none;font-size:13px;color:var(--ink-soft);
}
.ref-links a:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- Article ---------- */
.article-copy{max-width:820px;margin:0 auto;font-size:15.5px;line-height:1.8;color:var(--ink-soft);}
.article-copy h2{color:var(--ink);}
.article-copy p{margin:0 0 18px;}
.article-copy strong{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;overflow:hidden;}
.faq-item summary{
  padding:16px 18px;font-weight:600;font-size:15px;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{transition:transform .2s ease;flex-shrink:0;color:var(--ink-soft);}
.faq-item[open] summary .chev{transform:rotate(180deg);}
.faq-item .faq-a{padding:0 18px 16px;color:var(--ink-soft);font-size:14px;line-height:1.65;}

/* ---------- Share / Feedback ---------- */
.engage-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:26px 0 4px;}
.share-menu{position:relative;}
.share-dropdown{
  position:absolute;bottom: 100%; left:0;background:var(--paper);border:1px solid var(--line);border-radius:10px;
  box-shadow:var(--shadow);padding:8px;display:none;min-width:190px;z-index:50;
}
.share-dropdown.open{display:block;}
.share-dropdown button, .share-dropdown a{
  display:flex;align-items:center;gap:8px;width:100%;padding:9px 10px;border-radius:7px;border:none;
  background:transparent;text-decoration:none;color:var(--ink);font-size:13.5px;cursor:pointer;text-align:left;
}
.share-dropdown button:hover, .share-dropdown a:hover{background:var(--paper-alt);}

/* ---------- CTA ---------- */
.cta-section{background:var(--ink);color:var(--bg);border-radius:20px;margin:0 20px;padding:52px 32px;text-align:center;}
[data-theme="dark"] .cta-section{background:var(--accent-soft);color:var(--ink);}
.cta-section h2{color:inherit;}
.cta-section p{color:color-mix(in srgb, var(--bg) 70%, transparent);max-width:520px;margin:0 auto 26px;}
[data-theme="dark"] .cta-section p{color:var(--ink-soft);}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.cta-section .btn-outline{border-color:color-mix(in srgb, var(--bg) 30%, transparent);color:var(--bg);}
[data-theme="dark"] .cta-section .btn-outline{border-color:var(--line-strong);color:var(--ink);}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--paper-alt);border-top:1px solid var(--line);padding:48px 0 20px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:26px;margin-bottom:32px;}
.footer-brand p{font-size:13px;color:var(--ink-soft);line-height:1.6;margin:14px 0 0;max-width:34ch;}
.footer-col h4{font-family:var(--font-display);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin:0 0 12px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.footer-col a{text-decoration:none;font-size:13px;color:var(--ink-soft);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--ink-soft);}
.footer-bottom .legal-links{display:flex;gap:16px;flex-wrap:wrap;}
.footer-bottom a{text-decoration:none;color:var(--ink-soft);}
.footer-bottom a:hover{color:var(--accent);}
.disclaimer{font-size:11.5px;color:var(--ink-soft);opacity:.8;line-height:1.6;margin-top:14px;max-width:900px;}

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:0 auto;z-index:3000;
  background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);
  padding:18px;display:none;
}
.cookie-banner.show{display:block;}
.cookie-banner p{font-size:13px;color:var(--ink-soft);margin:0 0 12px;line-height:1.55;}
.cookie-banner .cookie-actions{display:flex;gap:10px;justify-content:flex-end;}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero .container{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(3,1fr);}
  .ref-links{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:760px){
  nav.main-nav, .nav-actions .btn-outline{display:none;}
  .hamburger{display:block;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:600px){
  .container{padding:0 14px;}
  .feature-grid, .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .ref-links{grid-template-columns:1fr;}
  .cta-section{margin:0 12px;padding:38px 18px;}
  h1{font-size:28px;}
  .util-bar .container{font-size:11px;}
  .editor-toolbar{gap:4px;}
  .tb-group{padding:0 4px;}
  table.sheet{font-size:14.5px;}
  table.sheet td{height:40px;min-width:118px;}
  table.sheet td .cell-inner{padding:8px 9px;}
  table.sheet th, table.sheet td.row-head{min-width:38px;width:38px;padding:8px 4px;font-size:13px;}
  table.sheet th.row-head, table.sheet td.row-head{width:38px;}
  .col-resize-handle{width:14px;right:-7px;}
  .row-resize-handle{height:14px;bottom:-7px;}
  .grid-wrap{max-height:60vh;-webkit-overflow-scrolling:touch;}
  .filter-row input{min-width:120px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}