/* Page-specific styles for aquascape-lighting-guide.html */
#light-root{--deep:#0D1026;--deep-2:#171B3D;--deep-3:#06070F;--leaf:#35AD51;--leaf-dark:#248238;--leaf-light:#8FD9A1;--amber:#D97706;--amber-dark:#B45309;--amber-lt:#FEF3C7;--sand:#F6F3EA;--sand-line:#E4DDC7;--ink:#1C1608;--ink-soft:#5C5442;--paper:#FFFFFF;font-family:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);}
#light-root *{box-sizing:border-box;}
#light-root h1,#light-root h2,#light-root h3,#light-root h4{font-family:'Fraunces',Georgia,serif;font-weight:600;letter-spacing:-0.01em;color:var(--deep);margin:0;}
#light-root a{text-decoration:none;}
#light-root section{padding:60px 40px;}
#light-root .wrap{max-width:1100px;margin:0 auto;}
#light-root .wrap-narrow{max-width:780px;margin:0 auto;}

/* HERO */
#light-root .page-header{position:relative;overflow:hidden;background:radial-gradient(130% 150% at 20% 0%,#3A2B08 0%,var(--deep) 45%,var(--deep-3) 100%);padding:80px 40px 40px;text-align:center;}
#light-root .page-header .exhibit-tag{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--leaf-light);border:1px solid rgba(143,217,161,0.4);padding:6px 14px;border-radius:999px;margin-bottom:22px;}
#light-root .page-header h1{font-size:clamp(28px,4.2vw,44px);color:#fff;line-height:1.2;max-width:720px;margin:0 auto;}
#light-root .page-header p{max-width:620px;margin:16px auto 0;color:#F0DDB0;font-size:14.5px;line-height:1.75;}
#light-root .page-header .locator{margin-top:26px;display:inline-flex;flex-wrap:wrap;justify-content:center;gap:10px;}
#light-root .page-header .locator span{font-size:11.5px;font-weight:700;letter-spacing:.04em;color:#fff;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);padding:7px 13px;border-radius:999px;}

/* SECTION LABEL */
#light-root .sec-label{display:flex;align-items:center;gap:14px;margin-bottom:34px;}
#light-root .sec-label .num{font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;color:var(--amber-dark);border:1.5px solid var(--amber-dark);border-radius:50%;width:34px;height:34px;flex:none;display:flex;align-items:center;justify-content:center;}
#light-root .sec-label .txt h2{font-size:clamp(22px,3vw,28px);}
#light-root .sec-label .txt .sub{font-size:12.5px;color:var(--ink-soft);font-weight:600;letter-spacing:.03em;text-transform:uppercase;margin-top:3px;}

/* WHY PAR MATTERS */
#light-root .why{background:var(--paper);}
#light-root .why p{font-size:15px;line-height:1.9;color:var(--ink-soft);margin:0 0 16px;}
#light-root .why strong{color:var(--ink);}
#light-root .par-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px;}
#light-root .par-card{background:var(--sand);border:1px solid var(--sand-line);border-radius:16px;padding:22px;text-align:center;}
#light-root .par-card .val{font-family:'JetBrains Mono',monospace;font-size:19px;font-weight:700;color:var(--amber-dark);display:block;}
#light-root .par-card .lbl{font-size:12.5px;font-weight:700;color:var(--ink);margin-top:6px;display:block;}
#light-root .par-card p{font-size:12px;color:var(--ink-soft);line-height:1.6;margin:8px 0 0;}

/* SPECTRUM */
#light-root .spectrum-sec{background:var(--sand);}
#light-root .spectrum-bar{height:36px;border-radius:999px;background:linear-gradient(90deg,#7C3AED 0%,#2563EB 20%,#0E8C7F 40%,#35AD51 55%,#D9C23A 70%,#D97706 85%,#DC2626 100%);margin-bottom:16px;position:relative;}
#light-root .spectrum-labels{display:flex;justify-content:space-between;font-size:11px;font-weight:700;color:var(--ink-soft);margin-bottom:30px;padding:0 4px;}
#light-root .spectrum-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
#light-root .spectrum-card{background:var(--paper);border:1px solid var(--sand-line);border-radius:18px;padding:24px 26px;}
#light-root .spectrum-card h3{font-size:17px;margin-bottom:10px;}
#light-root .spectrum-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.8;margin:0 0 10px;}
#light-root .spectrum-card ul{margin:0;padding-left:18px;}
#light-root .spectrum-card li{font-size:13px;color:var(--ink-soft);line-height:1.85;}

/* FACTS */
#light-root .facts{background:var(--paper);}
#light-root .facts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
#light-root .fact-card{border:1px solid var(--sand-line);border-radius:18px;padding:26px;background:var(--sand);}
#light-root .fact-card .icon{width:40px;height:40px;border-radius:10px;background:var(--deep);color:var(--leaf-light);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
#light-root .fact-card .icon svg{width:20px;height:20px;}
#light-root .fact-card h3{font-size:16px;margin-bottom:8px;}
#light-root .fact-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.7;margin:0;}

/* HIGH TECH VS LOW TECH */
#light-root .compare-sec{background:var(--sand);}
#light-root .tab-bar{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:36px;}
#light-root .tab-btn{font-family:'Inter',sans-serif;font-size:12.5px;font-weight:700;color:var(--ink-soft);background:var(--paper);border:1px solid var(--sand-line);padding:10px 18px;border-radius:20px;cursor:pointer;transition:all .15s;}
#light-root .tab-btn.active{background:var(--deep);border-color:var(--deep);color:#fff;}
#light-root .tab-panel{display:none;}
#light-root .tab-panel.active{display:block;}
#light-root .compare-card{background:var(--paper);border:1px solid var(--sand-line);border-radius:22px;padding:36px;box-shadow:0 1px 2px rgba(28,22,8,0.03),0 14px 30px -22px rgba(28,22,8,0.18);}
#light-root .compare-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px;flex-wrap:wrap;}
#light-root .compare-top h3{font-size:clamp(19px,2.4vw,24px);}
#light-root .diff-pills{display:flex;gap:8px;flex-wrap:wrap;}
#light-root .diff-pills span{font-size:10.5px;font-weight:700;letter-spacing:.03em;padding:5px 11px;border-radius:999px;white-space:nowrap;}
#light-root .compare-desc{font-size:14px;color:var(--ink-soft);line-height:1.8;margin:0 0 26px;}
#light-root .compare-cols{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
#light-root .compare-cols h4{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--ink);font-family:'Inter',sans-serif;margin-bottom:12px;}
#light-root .feat-list{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:8px;}
#light-root .feat-list li{font-size:13.5px;color:var(--ink-soft);padding-left:18px;position:relative;line-height:1.6;}
#light-root .feat-list li::before{content:'\25CF';position:absolute;left:0;top:7px;color:var(--amber);font-size:7px;}

/* POPULAR LIGHTING BRANDS */
#light-root .brands-sec{background:var(--sand);}
#light-root .brand-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
#light-root .brand-card{background:var(--paper);border:1px solid var(--sand-line);border-radius:18px;padding:0 0 20px;overflow:hidden;}
#light-root .brand-img{position:relative;width:100%;aspect-ratio:4/3;background:var(--amber-lt);border-bottom:1px solid var(--sand-line);}
#light-root .brand-img img{width:100%;height:100%;object-fit:cover;display:block;}
#light-root .brand-img .brand-img-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--amber-dark);}
#light-root .brand-img .brand-img-empty svg{width:24px;height:24px;opacity:0.35;}
#light-root .brand-img .brand-img-empty span{font-size:10.5px;font-weight:600;text-align:center;padding:0 10px;opacity:0.6;}
#light-root .brand-body{padding:18px 20px 0;}
#light-root .brand-tag{display:inline-block;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--amber-dark);background:rgba(180,83,9,0.12);padding:4px 10px;border-radius:999px;margin-bottom:10px;}
#light-root .brand-card h4{font-size:15.5px;margin-bottom:8px;}
#light-root .brand-card p{font-size:12.5px;color:var(--ink-soft);line-height:1.65;margin:0 0 12px;}
#light-root .brand-specs{display:flex;flex-wrap:wrap;gap:6px;}
#light-root .brand-specs span{font-size:10.5px;font-weight:700;color:var(--ink-soft);background:var(--sand);border:1px solid var(--sand-line);padding:4px 9px;border-radius:999px;}

/* MISTAKES TABLE */
#light-root .mistakes-sec{background:var(--paper);}
#light-root .mistakes-table{width:100%;border-collapse:collapse;max-width:1000px;margin:0 auto;font-size:13.5px;}
#light-root .mistakes-table th{text-align:left;font-family:'Inter',sans-serif;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#fff;background:var(--deep);padding:14px 16px;}
#light-root .mistakes-table th:first-child{border-radius:12px 0 0 0;}#light-root .mistakes-table th:last-child{border-radius:0 12px 0 0;}
#light-root .mistakes-table td{padding:13px 16px;border-bottom:1px solid var(--sand-line);color:var(--ink-soft);}
#light-root .mistakes-table tr:nth-child(even) td{background:var(--sand);}
#light-root .mistakes-table td:first-child{font-weight:700;color:var(--ink);}

/* WARNING */
#light-root .warn-strip{background:rgba(220,38,38,0.07);border:1px solid rgba(220,38,38,0.2);border-radius:18px;padding:24px 28px;max-width:820px;margin:32px auto 0;display:flex;gap:16px;align-items:flex-start;}
#light-root .warn-strip svg{width:22px;height:22px;flex:none;color:#DC2626;margin-top:1px;}
#light-root .warn-strip h4{font-size:15px;margin-bottom:6px;color:#991B1B;font-family:'Inter',sans-serif;font-weight:700;}
#light-root .warn-strip p{font-size:13.5px;color:#7F1D1D;line-height:1.7;margin:0;}

/* SA CONTEXT */
#light-root .sa-note{background:var(--sand);}
#light-root .sa-card{max-width:900px;margin:0 auto;background:var(--paper);border:1px solid var(--sand-line);border-radius:20px;padding:30px 34px;}
#light-root .sa-card .tag2{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--amber-dark);background:rgba(180,83,9,0.1);padding:5px 12px;border-radius:999px;margin-bottom:14px;}
#light-root .sa-card p{font-size:14px;color:var(--ink-soft);line-height:1.85;margin:0 0 12px;}

/* CTA */
#light-root .cta-band{background:radial-gradient(130% 200% at 50% 0%,#3A2B08 0%,var(--deep) 55%,var(--deep-3) 100%);padding:70px 40px;text-align:center;color:#fff;}
#light-root .cta-band h2{color:#fff;font-size:clamp(24px,3.4vw,32px);}
#light-root .cta-band p{max-width:560px;margin:14px auto 26px;font-size:14.5px;color:#F0DDB0;line-height:1.75;}
#light-root .cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
#light-root .btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:12px;font-weight:700;font-size:14px;cursor:pointer;border:none;transition:transform .15s;font-family:'Inter',sans-serif;}
#light-root .btn svg{width:15px;height:15px;flex:none;}
#light-root .btn-primary{background:linear-gradient(135deg,var(--leaf) 0%,var(--leaf-dark) 100%);color:#fff;box-shadow:0 10px 22px -8px rgba(36,130,56,0.5);}
#light-root .btn-primary:hover{transform:translateY(-2px);}
#light-root .btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,0.28);}
#light-root .btn-outline:hover{border-color:var(--leaf-light);color:var(--leaf-light);}

/* REVEAL */
#light-root .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
#light-root .reveal.in{opacity:1;transform:none;}

@media(max-width:900px){#light-root .par-grid{grid-template-columns:1fr;}#light-root .spectrum-grid{grid-template-columns:1fr;}#light-root .facts-grid{grid-template-columns:1fr;}#light-root .compare-cols{grid-template-columns:1fr;}#light-root .mistakes-table{display:block;overflow-x:auto;white-space:nowrap;}#light-root .brand-grid{grid-template-columns:1fr;}}
@media(max-width:640px){#light-root section{padding:44px 20px;}#light-root .page-header{padding:56px 20px 32px;}#light-root .page-header h1{font-size:26px;}#light-root .compare-card{padding:22px;}}