/* ── CSS Grid Generator ── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[x-cloak] { display: none !important; }

:root {
  --accent:  #10b981;
  --agrad:   linear-gradient(135deg,#10b981,#059669);
  --bg:      #09090f;
  --card:    #111119;
  --card2:   #16161f;
  --text:    #f1f5f9;
  --text2:   #94a3b8;
  --faint:   #64748b;
  --border:  #1c1c2a;
  --border2: #252535;
  --input:   #0d0d17;
}

body { background:var(--bg); color:var(--text); font-family:system-ui,-apple-system,sans-serif; line-height:1.6; min-height:100vh; }

/* ── HEADER ──────────────────────────────────── */
.site-header { position:sticky; top:0; z-index:100; background:rgba(9,9,15,.88); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); }
.header-inner { max-width:1240px; margin:0 auto; padding:0 20px; display:flex; align-items:center; justify-content:space-between; height:56px; }
.logo { display:flex; align-items:center; gap:10px; text-decoration:none; }
.logo-icon { width:32px; height:32px; flex-shrink:0; }
.logo-text { font-size:.95rem; font-weight:800; background:var(--agrad); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.nav-links { display:flex; gap:24px; }
.nav-links a { color:var(--text2); text-decoration:none; font-size:.87rem; font-weight:500; transition:color .15s; }
.nav-links a:hover { color:var(--text); }

/* ── HERO ────────────────────────────────────── */
.hero { text-align:center; padding:52px 20px 36px; }
.hero-badge { display:inline-flex; align-items:center; gap:6px; background:rgba(16,185,129,.1); border:1px solid rgba(16,185,129,.25); color:#34d399; border-radius:999px; padding:4px 14px; font-size:.78rem; font-weight:600; margin-bottom:18px; }
.hero h1 { font-size:clamp(2rem,5vw,2.8rem); font-weight:900; letter-spacing:-.03em; margin-bottom:12px; }
.g { background:var(--agrad); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero p { color:var(--text2); font-size:1rem; max-width:540px; margin:0 auto; }

/* ── PAGE WRAP ───────────────────────────────── */
.page-wrap { max-width:1240px; margin:0 auto; padding:0 20px 80px; }

/* ── MAIN LAYOUT ─────────────────────────────── */
.gg-layout {
  display:grid;
  grid-template-columns:300px 1fr;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
  background:var(--border);
  gap:1px;
  margin-bottom:16px;
}

/* ── CONTROLS ────────────────────────────────── */
.gg-controls { background:var(--card); padding:22px 18px; display:flex; flex-direction:column; gap:18px; overflow-y:auto; max-height:600px; }

.ctrl-head { font-size:.7rem; font-weight:800; color:var(--faint); text-transform:uppercase; letter-spacing:.08em; margin-bottom:10px; }
.ctrl-sep  { height:1px; background:var(--border); }
.ctrl-row  { display:flex; justify-content:space-between; align-items:center; font-size:.73rem; font-weight:700; color:var(--text2); text-transform:uppercase; letter-spacing:.07em; margin-bottom:8px; }
.ctrl-val  { color:var(--accent); font-weight:800; font-size:.8rem; font-variant-numeric:tabular-nums; }

input[type=range] { -webkit-appearance:none; appearance:none; width:100%; height:5px; background:var(--border2); border-radius:99px; outline:none; cursor:pointer; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance:none; width:16px; height:16px; border-radius:50%; background:var(--accent); border:2px solid var(--card); box-shadow:0 0 0 2px rgba(16,185,129,.25); }
input[type=range]::-moz-range-thumb { width:16px; height:16px; border-radius:50%; background:var(--accent); border:2px solid var(--card); }

/* Toggle switch */
.toggle-row { display:flex; align-items:center; justify-content:space-between; gap:8px; }
.toggle-label { font-size:.75rem; font-weight:600; color:var(--text2); }
.toggle-btn { padding:4px 12px; border-radius:999px; font-size:.72rem; font-weight:700; border:1px solid var(--border2); background:transparent; color:var(--faint); cursor:pointer; transition:all .15s; }
.toggle-btn.on { border-color:var(--accent); background:rgba(16,185,129,.1); color:var(--accent); }

/* Custom size inputs */
.custom-sizes { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin-top:10px; }
.size-field { display:flex; flex-direction:column; gap:3px; }
.size-field label { font-size:.65rem; font-weight:700; color:var(--faint); text-transform:uppercase; letter-spacing:.06em; }
.size-field input { padding:5px 8px; background:var(--input); border:1px solid var(--border2); border-radius:6px; color:var(--text); font-size:.78rem; font-family:monospace; outline:none; width:100%; transition:border-color .15s; }
.size-field input:focus { border-color:var(--accent); }

/* Gap inputs */
.gap-row { display:flex; gap:10px; }
.gap-field { flex:1; }
.gap-field label { display:block; font-size:.68rem; font-weight:700; color:var(--faint); text-transform:uppercase; letter-spacing:.06em; margin-bottom:6px; }
.gap-field input[type=range] { width:100%; }
.gap-val { display:block; text-align:right; font-size:.72rem; font-weight:700; color:var(--accent); margin-top:3px; font-variant-numeric:tabular-nums; }

/* Items list */
.items-list { display:flex; flex-direction:column; gap:6px; }
.item-row { display:flex; align-items:center; gap:8px; padding:7px 10px; border-radius:8px; background:var(--input); border:1px solid var(--border2); }
.item-dot { width:12px; height:12px; border-radius:50%; flex-shrink:0; }
.item-info { flex:1; min-width:0; }
.item-name { font-size:.74rem; font-weight:700; color:var(--text); }
.item-span { font-size:.68rem; color:var(--faint); font-family:monospace; }
.item-remove { width:20px; height:20px; border-radius:50%; border:1px solid var(--border2); background:transparent; color:var(--faint); cursor:pointer; display:flex; align-items:center; justify-content:center; font-size:.8rem; transition:all .15s; flex-shrink:0; }
.item-remove:hover { border-color:#f43f5e; color:#f43f5e; }

.items-empty { font-size:.78rem; color:var(--faint); text-align:center; padding:14px 0; font-style:italic; }
.clear-btn { display:flex; align-items:center; justify-content:center; gap:5px; width:100%; padding:7px; border-radius:8px; border:1px solid var(--border2); background:transparent; color:var(--faint); font-size:.76rem; font-weight:700; cursor:pointer; transition:all .15s; }
.clear-btn:hover:not(:disabled) { border-color:#f43f5e; color:#f43f5e; }
.clear-btn:disabled { opacity:.3; cursor:not-allowed; }

/* ── PREVIEW ─────────────────────────────────── */
.gg-preview { background:var(--card2); padding:28px; display:flex; flex-direction:column; gap:12px; }
.preview-label { font-size:.7rem; font-weight:700; color:var(--faint); text-transform:uppercase; letter-spacing:.08em; }
.preview-hint { font-size:.73rem; color:var(--faint); text-align:center; margin-top:4px; }

.preview-scene {
  flex:1;
  min-height:460px;
  position:relative;
  border-radius:12px;
  overflow:auto;
  background:
    radial-gradient(circle at 20% 30%, rgba(16,185,129,.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(16,185,129,.03) 0%, transparent 50%),
    var(--bg);
  border:1px solid var(--border);
  padding:20px;
}

.preview-grid-wrap { height:100%; min-height:420px; }

/* Reference cells */
.grid-ref-cell {
  border:1px dashed var(--border2);
  border-radius:4px;
  cursor:crosshair;
  user-select:none;
  touch-action:none;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:border-color .08s, background .08s;
  position:relative;
}
.grid-ref-cell:hover { border-color:var(--accent); background:rgba(16,185,129,.04); }
.grid-ref-cell.is-drag { border-color:var(--accent); background:rgba(16,185,129,.15); border-style:solid; }

.cell-coord {
  font-size:.6rem;
  font-weight:600;
  color:var(--border2);
  font-family:monospace;
  pointer-events:none;
  position:absolute;
  top:4px;
  left:5px;
  line-height:1;
}
.grid-ref-cell:hover .cell-coord { color:var(--faint); }
.grid-ref-cell.is-drag .cell-coord { color:var(--accent); opacity:.6; }

/* Placed items */
.grid-placed-item { transition:none; }

/* Empty state hint */
.preview-empty {
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  pointer-events:none;
}
.preview-empty-icon { width:40px; height:40px; color:var(--border2); }
.preview-empty-text { font-size:.82rem; color:var(--faint); }

/* ── CODE OUTPUT ─────────────────────────────── */
.gg-code-wrap { background:var(--card); border:1px solid var(--border); border-radius:14px; overflow:hidden; margin-bottom:40px; }
.gg-code-head { display:flex; align-items:center; justify-content:space-between; padding:12px 18px; border-bottom:1px solid var(--border); }
.gg-code-title { font-size:.8rem; font-weight:700; color:var(--text2); display:flex; align-items:center; gap:6px; }
.gg-code-title svg { width:14px; height:14px; }
.copy-btn { display:inline-flex; align-items:center; gap:6px; padding:7px 14px; border-radius:8px; font-size:.8rem; font-weight:700; border:1px solid var(--border2); background:var(--input); color:var(--text2); cursor:pointer; transition:all .15s; }
.copy-btn:hover { border-color:var(--accent); color:var(--text); }
.copy-btn.done { border-color:#4ade80; color:#4ade80; background:rgba(74,222,128,.08); }
.copy-btn svg { width:13px; height:13px; }
.gg-code-body { padding:20px 22px; }
.gg-code-body pre { font-family:'Fira Code','Cascadia Code',Consolas,monospace; font-size:.84rem; line-height:1.8; color:var(--text2); white-space:pre; overflow-x:auto; }

/* ── INFO SECTIONS ───────────────────────────── */
.info-sections { display:flex; flex-direction:column; gap:20px; margin-bottom:48px; }
.info-section { background:var(--card); border:1px solid var(--border); border-radius:16px; padding:32px 36px; }
.info-icon-row { display:flex; align-items:center; gap:14px; margin-bottom:14px; }
.info-icon { width:40px; height:40px; border-radius:10px; background:rgba(16,185,129,.1); border:1px solid rgba(16,185,129,.2); display:flex; align-items:center; justify-content:center; flex-shrink:0; color:var(--accent); }
.info-icon svg { width:18px; height:18px; }
.info-section h2 { font-size:1.1rem; font-weight:800; }
.info-body { color:var(--text2); font-size:.9rem; line-height:1.8; }
.info-body p + p { margin-top:10px; }
.info-body ul { padding-left:20px; display:flex; flex-direction:column; gap:6px; }
.info-body strong { color:var(--text); font-weight:700; }
.info-body code { font-family:monospace; font-size:.83em; background:var(--border); padding:1px 5px; border-radius:4px; color:var(--accent); }

/* ── RELATED / BLOG ──────────────────────────── */
.related-section { margin-bottom:48px; }
.related-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.related-header h2 { font-size:1.15rem; font-weight:800; }
.view-all-link { display:inline-flex; align-items:center; gap:4px; font-size:.82rem; font-weight:600; color:var(--accent); text-decoration:none; }
.view-all-link svg { width:14px; height:14px; }
.related-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:14px; }
.related-tool-card { display:flex; flex-direction:column; gap:10px; background:var(--card); border:1px solid var(--border); border-radius:14px; padding:18px; text-decoration:none; color:inherit; transition:border-color .15s,transform .15s; }
.related-tool-card:hover { border-color:var(--accent); transform:translateY(-2px); }
.rt-icon { width:40px; height:40px; border-radius:10px; display:flex; align-items:center; justify-content:center; }
.rt-icon svg { width:20px; height:20px; color:#fff; }
.rt-name { font-size:.9rem; font-weight:700; }
.rt-desc { font-size:.78rem; color:var(--text2); line-height:1.5; flex:1; }
.rt-link { display:inline-flex; align-items:center; gap:3px; font-size:.76rem; font-weight:700; color:var(--accent); }
.rt-link svg { width:12px; height:12px; }
.blog-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:14px; }
.blog-card { display:flex; flex-direction:column; gap:8px; background:var(--card); border:1px solid var(--border); border-radius:14px; padding:20px; text-decoration:none; color:inherit; transition:border-color .15s; }
.blog-card:hover { border-color:var(--accent); }
.blog-cat { display:inline-block; padding:2px 10px; border-radius:999px; font-size:.71rem; font-weight:700; }
.blog-title { font-size:.92rem; font-weight:700; line-height:1.35; }
.blog-excerpt { font-size:.8rem; color:var(--text2); line-height:1.55; flex:1; }
.blog-meta { font-size:.72rem; color:var(--faint); }
.blog-read { display:inline-flex; align-items:center; gap:3px; font-size:.76rem; font-weight:700; color:var(--accent); margin-top:auto; }
.blog-read svg { width:12px; height:12px; }

/* ── FOOTER ──────────────────────────────────── */
.site-footer { background:var(--card); border-top:1px solid var(--border); padding:48px 20px 0; }
.footer-inner { max-width:1240px; margin:0 auto; display:grid; grid-template-columns:1fr auto; gap:40px; padding-bottom:40px; }
.footer-brand { max-width:280px; }
.footer-tagline { font-size:.82rem; color:var(--text2); margin-top:10px; line-height:1.55; }
.footer-nav-wrap { display:flex; gap:48px; }
.footer-col { display:flex; flex-direction:column; gap:8px; }
.footer-col h4 { font-size:.78rem; font-weight:700; color:var(--text2); text-transform:uppercase; letter-spacing:.07em; margin-bottom:12px; }
.footer-col a { font-size:.84rem; color:var(--faint); text-decoration:none; transition:color .15s; }
.footer-col a:hover { color:var(--text); }
.footer-bottom { border-top:1px solid var(--border); padding:16px 0; }
.footer-bottom .inner { max-width:1240px; margin:0 auto; padding:0 20px; display:flex; justify-content:space-between; align-items:center; }
.footer-bottom p { font-size:.78rem; color:var(--faint); }