
:root{--bg:#070b10;--panel:#0e151d;--panel2:#111b25;--line:#22313e;--text:#f4f6f8;--muted:#9eacb8;--gold:#e9b84f;--gold2:#ffd979;--green:#58d39b;--red:#ff7b7b;--blue:#70b8ff;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% -10%,#192838 0,transparent 38%),var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(var(--max),calc(100% - 32px));margin:auto}.top{position:sticky;top:0;z-index:20;background:rgba(7,11,16,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{min-height:70px;display:flex;align-items:center;gap:20px}.logo{font-weight:900;font-size:25px;letter-spacing:-.5px;white-space:nowrap}.logo span{color:var(--gold)}nav{display:flex;gap:6px;align-items:center;margin-left:auto}nav a{padding:9px 11px;border-radius:10px;color:#c6d0d8;font-size:14px}nav a:hover,nav a.active{background:#15212c;color:#fff}.menu-btn{display:none;margin-left:auto;background:#111b25;border:1px solid var(--line);color:#fff;border-radius:10px;padding:9px 11px;font-size:20px}.hero{padding:76px 0 48px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}.kicker{color:var(--gold);font-size:12px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase}.hero h1{font-size:clamp(40px,6vw,72px);line-height:1.04;letter-spacing:-2.8px;margin:14px 0 20px}.hero h1 span{color:var(--gold)}.lead{font-size:18px;color:#c3ccd4;max-width:720px}.hero-art{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#0c131a;box-shadow:0 25px 80px rgba(0,0,0,.35)}.hero-art img{aspect-ratio:1.3;object-fit:cover}.caption{padding:12px 15px;color:var(--muted);font-size:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border-radius:12px;border:1px solid var(--line);font-weight:800;margin:7px 7px 0 0}.btn.gold{background:var(--gold);color:#111;border-color:var(--gold)}.btn.ghost{background:#101821}.btn:hover{transform:translateY(-1px)}.section{padding:58px 0}.section.alt{background:linear-gradient(180deg,#0b1117,#080d12);border-block:1px solid #111c25}.section-head{margin-bottom:26px}.section h2{font-size:32px;letter-spacing:-1px;margin:7px 0}.section-head p{color:var(--muted);max-width:760px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.card{background:linear-gradient(180deg,#101923,#0d151d);border:1px solid var(--line);border-radius:16px;padding:20px}.card:hover{border-color:#405463}.card h3{margin:0 0 7px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:14px}.tag{display:inline-block;border:1px solid #344451;color:#b9c7d1;border-radius:999px;padding:4px 9px;font-size:11px;margin:3px}.feature-img{border-radius:15px;border:1px solid var(--line);overflow:hidden}.feature-img img{aspect-ratio:16/8;object-fit:cover}.steps{counter-reset:step;display:grid;gap:12px}.step{display:grid;grid-template-columns:48px 1fr;gap:15px;align-items:start;background:#0d151d;border:1px solid var(--line);padding:15px;border-radius:14px}.step:before{counter-increment:step;content:counter(step);width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:#1b2732;color:var(--gold);font-weight:900}.ad{margin:28px 0;border:1px dashed #445563;border-radius:15px;min-height:92px;display:grid;place-items:center;text-align:center;color:#8797a4;background:#0a1117}.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.tile{padding:16px;border:1px solid var(--line);border-radius:14px;background:#0d151d}.tile b{display:block;color:var(--gold);font-size:22px}.tile span{color:var(--muted);font-size:13px}.band{border:1px solid var(--line);border-radius:16px;background:#0d151d;margin:14px 0;overflow:hidden}.band-top{display:flex;align-items:center;justify-content:space-between;padding:15px 17px;cursor:pointer}.band-top h3{margin:0;font-size:18px}.band-body{padding:0 17px 17px;display:none;border-top:1px solid var(--line)}.band.open .band-body{display:block}.band-copy{color:#b7c4ce}.listen-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.audio-btn{width:100%;border:1px solid #30404d;background:#121d27;color:#eef3f6;padding:11px;border-radius:11px;text-align:left;cursor:pointer}.audio-btn:hover{border-color:var(--gold)}.audio-btn small{display:block;color:#8495a3}.audio-btn.playing{border-color:var(--green)}.graph{height:360px;position:relative;border:1px solid var(--line);border-radius:16px;background:linear-gradient(#0d151d,#091017);overflow:hidden}.graph:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(to right,transparent 0,transparent calc(10% - 1px),#1a2731 calc(10% - 1px),#1a2731 10%),repeating-linear-gradient(to bottom,transparent 0,transparent calc(16.66% - 1px),#18242e calc(16.66% - 1px),#18242e 16.66%)}.curve{position:absolute;left:3%;right:3%;top:10%;height:80%;pointer-events:none}.curve svg{width:100%;height:100%}.graph-label{position:absolute;bottom:8px;font-size:11px;color:#82919c}.graph-label.l{left:10px}.graph-label.r{right:10px}.graph-info{margin-top:12px;padding:15px;border-radius:14px;background:#101b25;border:1px solid #314250}.dictionary-search{width:100%;padding:14px 16px;background:#0b131a;border:1px solid var(--line);border-radius:12px;color:#fff;font-size:16px;outline:none}.terms{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.term{background:#0d151d;border:1px solid var(--line);border-radius:14px;padding:16px}.term h3{margin:0 0 5px}.term p{margin:0;color:#aebbc5;font-size:14px}.term .word{color:var(--gold);font-size:12px;font-weight:800}.gear-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center;margin-bottom:24px}.gear-row:nth-child(even) .gear-photo{order:2}.gear-photo{border-radius:16px;overflow:hidden;border:1px solid var(--line)}.gear-photo img{width:100%;height:290px;object-fit:cover}.compare-table{width:100%;border-collapse:collapse;background:#0d151d;border:1px solid var(--line);border-radius:14px;overflow:hidden}.compare-table th,.compare-table td{padding:13px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.compare-table th{color:var(--gold)}.labbox{background:#0d151d;border:1px solid var(--line);padding:20px;border-radius:16px}.file-input{border:1px dashed #435462;border-radius:12px;padding:18px;text-align:center}.range{width:100%}.band-toggle{display:flex;align-items:center;justify-content:space-between;padding:12px;border:1px solid var(--line);border-radius:11px;margin:8px 0;background:#101923}.band-toggle input{accent-color:var(--gold)}.status{color:var(--green);font-size:13px}.anatomy{position:relative;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#0c1319}.anatomy img{width:100%;aspect-ratio:16/8;object-fit:cover}.hotspot{position:absolute;width:26px;height:26px;border-radius:50%;background:var(--gold);color:#111;display:grid;place-items:center;font-weight:900;cursor:pointer;border:3px solid rgba(255,255,255,.5)}.h1{left:31%;top:39%}.h2{left:50%;top:52%}.h3{left:70%;top:42%}.hotspot-info{padding:14px;color:#bac6cf}.checklist label{display:flex;gap:10px;padding:13px;border:1px solid var(--line);border-radius:11px;margin:8px 0;background:#0d151d}.checklist input{accent-color:var(--gold)}.footer{padding:48px 0;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer p,.footer li{color:#82909b;font-size:14px}.footer ul{list-style:none;padding:0}.footer li{margin:6px 0}.copy{padding:16px 0 30px;border-top:1px solid var(--line);color:#687782;font-size:12px}.note{padding:13px 15px;background:#101a23;border-left:3px solid var(--gold);border-radius:10px;color:#bac5cd;font-size:13px}.pill-row{display:flex;flex-wrap:wrap;gap:7px}.hero-small{padding:45px 0 25px}.hero-small h1{font-size:clamp(34px,5vw,54px);margin:8px 0}.muted{color:var(--muted)}.center{text-align:center}.hidden{display:none!important}
@media(max-width:900px){nav{display:none;position:absolute;top:70px;left:0;right:0;background:#080d12;border-bottom:1px solid var(--line);padding:10px 16px;flex-direction:column;align-items:stretch}nav.open{display:flex}.menu-btn{display:block}.hero-grid,.gear-row{grid-template-columns:1fr}.gear-row:nth-child(even) .gear-photo{order:0}.grid,.grid-2{grid-template-columns:1fr 1fr}.tiles{grid-template-columns:1fr 1fr}.terms{grid-template-columns:1fr 1fr}.listen-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.container{width:min(var(--max),calc(100% - 22px))}.hero{padding:46px 0 25px}.hero h1{letter-spacing:-1.8px}.grid,.grid-2,.tiles,.terms,.listen-grid{grid-template-columns:1fr}.section{padding:42px 0}.footer{grid-template-columns:1fr 1fr}.footer>div:first-child{grid-column:1/-1}}

/* IEM World தமிழ் refinements */
.ad-slot{margin:34px 0 18px}.ad-banner{position:relative;overflow:hidden;min-height:150px;border:1px dashed #465765;border-radius:16px;background:#0a1117}.ad-track{display:flex;transition:transform .45s ease;width:100%}.ad-slide{min-width:100%;position:relative}.ad-slide img{display:block;width:100%;height:150px;object-fit:cover}.ad-placeholder{min-height:150px;display:grid;place-items:center;text-align:center;padding:20px;color:#8e9ca8}.ad-nav{position:absolute;right:10px;bottom:10px;display:flex;gap:6px}.ad-dot{width:8px;height:8px;border-radius:50%;border:0;background:#6e7b85;cursor:pointer;padding:0}.ad-dot.active{background:var(--gold);transform:scale(1.2)}.ad-caption{position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.58);padding:5px 8px;border-radius:8px;font-size:11px;color:#fff}.ad-help{margin-top:8px;font-size:11px;color:#758490}.ad-manager-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.ad-editor{background:#0d151d;border:1px solid var(--line);border-radius:15px;padding:17px}.ad-editor input[type=text],.ad-editor input[type=url],.ad-editor select{width:100%;padding:11px;background:#0a1117;color:#fff;border:1px solid var(--line);border-radius:9px;margin:6px 0 10px}.ad-editor input[type=file]{width:100%;margin:7px 0 12px;color:#b9c4cc}.preview-ad{min-height:90px;border:1px dashed #40515e;border-radius:10px;display:grid;place-items:center;overflow:hidden;background:#0a1117}.preview-ad img{width:100%;height:90px;object-fit:cover}.codebox{width:100%;min-height:240px;background:#05080b;color:#dfe7ec;border:1px solid #263540;border-radius:12px;padding:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.driver-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.driver-card{background:#0d151d;border:1px solid var(--line);border-radius:15px;padding:18px}.driver-card h3{margin:0 0 5px}.driver-card .badge{display:inline-block;border:1px solid #354754;border-radius:999px;padding:3px 8px;font-size:10px;color:#b8c5ce;margin-bottom:9px}.tradeoff{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.tradeoff div{padding:9px;border-radius:9px;background:#101a23;font-size:12px;color:#b8c5ce}.compare-selects{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:15px 0}.compare-selects select{width:100%;padding:12px;background:#0a1117;color:#fff;border:1px solid var(--line);border-radius:10px}.choice-pills{display:flex;gap:7px;flex-wrap:wrap}.choice-pills button.selected{border-color:var(--gold);background:#1b2630;color:#fff}.small-source{font-size:11px;color:#72818d;margin-top:8px}.audio-warning{font-size:12px;color:#e8c46a;margin-top:8px}.music-intro{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.benefit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:15px}.benefit{padding:14px;border:1px solid var(--line);border-radius:13px;background:#0d151d}.benefit b{display:block;color:var(--gold);margin-bottom:4px}.source-note{padding:12px 14px;background:#0d151d;border:1px solid var(--line);border-radius:11px;color:#9aa9b5;font-size:12px}.inline-link{color:var(--gold);text-decoration:underline;text-underline-offset:3px}.no-image{display:none}
@media(max-width:900px){.ad-manager-grid,.driver-grid,.music-intro{grid-template-columns:1fr}.compare-selects{grid-template-columns:1fr}.benefit-list{grid-template-columns:1fr}}
.graph-marker{position:absolute;top:0;bottom:0;width:2px;background:var(--gold);box-shadow:0 0 18px rgba(233,184,79,.55);pointer-events:none;transition:left .25s ease}.graph-marker:after{content:"";position:absolute;top:12px;left:-5px;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(233,184,79,.15)}
.ad-slot[data-ad-page="sound"] .ad-banner{min-height:210px}.ad-slot[data-ad-page="sound"] .ad-slide img{height:210px}.ad-slot[data-ad-page="home"] .ad-banner{min-height:180px}.ad-slot[data-ad-page="home"] .ad-slide img{height:180px}


/* SEO topic navigation: visible, useful topic clusters rather than hidden keyword stuffing. */
.seo-topics{margin-top:42px;padding:34px 0 10px;border-top:1px solid rgba(255,255,255,.10);background:linear-gradient(180deg,rgba(255,255,255,.018),transparent)}
.seo-topics h2{margin:8px 0 8px}.seo-intro{max-width:900px;color:var(--muted,#b8c0cc);line-height:1.7}.seo-cluster{margin:22px 0}.seo-cluster h3{margin:0 0 10px;font-size:1rem;color:#fff}.seo-tags{display:flex;flex-wrap:wrap;gap:8px}.seo-tag{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.035);border-radius:999px;padding:7px 11px;color:#dce4ee;font-size:.88rem;text-decoration:none}.seo-tag:hover{border-color:rgba(255,194,45,.65);color:#ffd15a}.seo-tag.seo-link{color:#ffd15a}
@media(max-width:760px){.seo-topics{padding-top:26px}.seo-tags{gap:7px}.seo-tag{font-size:.82rem;padding:6px 9px}}

/* FINAL V10 visual corrections */
.logo{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;line-height:1;gap:2px;font-size:21px;letter-spacing:-.4px;min-width:98px}.logo .brand-en{display:block}.logo small{display:block;font-size:9px;line-height:1;color:#f1c75b;font-weight:900;letter-spacing:1px;margin-left:1px}
.nav{min-height:68px;gap:10px}.nav nav{flex:1;justify-content:flex-end;flex-wrap:nowrap;gap:1px;min-width:0}.nav nav a{white-space:nowrap;padding:8px 7px;font-size:12px;line-height:1.1}.menu-btn{flex:0 0 auto}
.hero-premium{padding:0 0 34px}.hero-banner{position:relative;width:100%;min-height:520px;overflow:hidden;border-bottom:1px solid var(--line)}.hero-banner>img{width:100%;height:clamp(420px,48vw,625px);object-fit:cover}.hero-overlay{position:absolute;inset:0;display:flex;align-items:center;background:linear-gradient(90deg,rgba(4,9,13,.82) 0%,rgba(4,9,13,.58) 34%,rgba(4,9,13,.08) 72%,rgba(4,9,13,.12) 100%)}.hero-overlay .container{padding-top:25px}.hero-overlay h1{font-size:clamp(40px,5.4vw,72px);max-width:700px;text-shadow:0 5px 28px rgba(0,0,0,.55)}.hero-overlay .lead{max-width:650px;text-shadow:0 2px 14px rgba(0,0,0,.6)}
.ad-slot{margin:28px 0 20px}.ad-banner{min-height:150px!important;background:#d9dde1!important;border:2px dashed #8f9aa3!important;border-radius:14px;box-shadow:0 4px 18px rgba(0,0,0,.12)}.ad-placeholder{min-height:150px!important;color:#3b4650!important;gap:3px}.ad-placeholder b{font-size:17px;letter-spacing:.4px}.ad-placeholder span{font-size:12px}.ad-placeholder small{font-size:10px;color:#6d7780}.ad-wrap-middle{margin:30px 0}.ad-wrap-end{margin:28px auto 14px}
.seo-topics{margin-top:10px;padding:10px 0 5px!important;background:rgba(255,255,255,.012)!important;border-top:1px solid rgba(255,255,255,.08)!important}.seo-topics .kicker{font-size:8px;letter-spacing:1.2px;margin-bottom:2px}.seo-topics h2{font-size:13px!important;line-height:1.2;margin:0 0 4px!important;display:inline-block;margin-right:7px!important}.seo-tags{display:inline-flex!important;flex-wrap:wrap;gap:2px!important;vertical-align:middle}.seo-tag{font-size:9px!important;padding:2px 5px!important;border-radius:999px!important;color:#9eabb4!important;background:transparent!important;border-color:#2a3944!important}
.gear-row{margin-bottom:30px}.gear-photo{background:#090f14}.gear-photo img{height:310px;object-fit:cover}.inside-exploded img,.inside-photo-secondary img{width:100%;height:auto;display:block;object-fit:cover}.inside-photo-secondary{margin-top:18px}.contact-focus{max-width:920px;margin:0 auto;padding:36px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(180deg,#101923,#0b1219);text-align:center}.contact-focus h2{font-size:clamp(30px,4vw,48px);line-height:1.08;margin:10px auto 12px;max-width:800px}.contact-email{display:inline-block;margin-top:18px;padding:15px 22px;border-radius:12px;border:1px solid #536674;background:#0c1620;color:#ffd45e;font-size:22px;font-weight:900}.contact-focus .muted{margin-top:12px}.checklist{display:grid;gap:10px}.checklist label{padding:12px 14px}
.preview-ad{margin-top:8px;min-height:120px;border:1px dashed #66747e;border-radius:10px;background:#fff;color:#56616a;display:grid;place-items:center;text-align:center;overflow:hidden}.preview-ad img{width:100%;height:120px;object-fit:cover}.ad-editor label{display:block;color:#cbd5dc;font-size:13px;font-weight:700}.ad-editor input[type=file]{display:block;width:100%;margin:6px 0 10px}.ad-editor input[type=url]{display:block;width:100%;padding:10px;background:#091119;color:#fff;border:1px solid #2b3c48;border-radius:9px}.ad-editor code{color:#ffd45e}
@media(max-width:1180px){.nav nav a{font-size:11px;padding:7px 5px}.nav{gap:6px}.logo{min-width:86px;font-size:18px}}
@media(max-width:900px){.nav nav{display:none}.menu-btn{display:block}.hero-banner>img{height:500px}.hero-overlay{align-items:flex-end;padding-bottom:35px;background:linear-gradient(0deg,rgba(4,9,13,.9),rgba(4,9,13,.12) 70%)}.hero-overlay h1{font-size:42px}.hero-overlay .lead{font-size:16px}.contact-focus{padding:24px 18px}.contact-email{font-size:17px}.seo-topics h2{display:block!important}}
@media(max-width:600px){.hero-banner>img{height:520px}.hero-overlay h1{font-size:35px}.hero-overlay .lead{font-size:14px}.ad-banner,.ad-placeholder{min-height:105px!important}.ad-placeholder{padding:12px}.ad-placeholder b{font-size:13px}.ad-placeholder span{font-size:9px}.ad-placeholder small{font-size:8px}.gear-photo img{height:230px}.contact-email{font-size:15px;padding:12px 14px}}


/* FINAL POLISH — navigation, visible ad placeholders, compact SEO/footer */
@media(min-width:901px){
  .nav{min-height:72px;gap:12px;align-items:center}
  .nav .logo{flex:0 0 auto;min-width:112px;font-size:22px}
  .nav nav{flex:0 1 auto;justify-content:flex-start;gap:3px;margin-left:4px;align-items:center;white-space:nowrap}
  .nav nav a{font-size:13px;padding:8px 8px;line-height:1;white-space:nowrap}
}
@media(min-width:1181px){.nav nav a{font-size:13.5px;padding-inline:8px}}
.ad-slot{display:block!important;min-height:154px!important;margin:30px 0 24px!important}
.ad-slot .ad-banner{display:block!important;min-height:154px!important;background:#d9dde1!important;border:2px dashed #8f9aa3!important;color:#27323b!important}
.ad-slot .ad-track{min-height:150px!important}
.ad-slot .ad-placeholder{min-height:150px!important;background:#d9dde1!important;color:#34414b!important;display:flex!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;gap:3px!important}
.ad-slot .ad-placeholder b{font-size:17px!important;letter-spacing:.5px!important}
.ad-slot .ad-placeholder span{font-size:12px!important;color:#59656e!important}
.ad-slot .ad-placeholder small{font-size:10px!important;color:#7a858d!important}
.seo-topics{margin-top:6px!important;padding:5px 0 4px!important}
.seo-topics .container{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.seo-topics .kicker{font-size:7px!important;letter-spacing:1px!important;margin:0!important;flex:0 0 auto}
.seo-topics h2{font-size:9px!important;line-height:1!important;margin:0 3px 0 0!important;display:inline-block!important;white-space:nowrap}
.seo-tags{display:inline-flex!important;gap:2px!important;flex:1 1 auto;align-items:center}
.seo-tag{font-size:7.5px!important;padding:1px 4px!important;line-height:1.25!important}
.footer{padding:30px 0 22px!important;grid-template-columns:2fr 1fr 1.2fr!important;gap:24px!important}
.footer p,.footer li{font-size:12px!important}
@media(max-width:900px){.nav{gap:8px}.nav .logo{min-width:98px}.ad-slot{min-height:112px!important}.ad-slot .ad-banner,.ad-slot .ad-placeholder{min-height:110px!important}.ad-slot .ad-placeholder b{font-size:13px!important}.ad-slot .ad-placeholder span{font-size:9px!important}.ad-slot .ad-placeholder small{font-size:8px!important}.seo-topics .container{display:block}.seo-topics .kicker{display:inline-block!important;margin-right:4px!important}.seo-topics h2{font-size:8px!important}.seo-tags{display:inline-flex!important}.seo-tag{font-size:7px!important}.footer{grid-template-columns:1fr 1fr!important}}


/* PERMANENT ADVERTISEMENT SPACE — always visible until a real banner is configured */
.ad-slot{display:block!important;width:100%!important;min-height:184px!important;margin:32px 0 26px!important;visibility:visible!important;opacity:1!important;}
.ad-slot .ad-banner{display:block!important;width:100%!important;min-height:180px!important;background:#d9dde1!important;color:#27323b!important;border:2px dashed #9aa7b1!important;border-radius:14px!important;box-shadow:0 4px 18px rgba(0,0,0,.16)!important;}
.ad-slot .ad-placeholder{display:flex!important;width:100%!important;min-height:176px!important;background:#d9dde1!important;color:#27323b!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;text-align:center!important;gap:5px!important;padding:18px!important;}
.ad-slot .ad-placeholder b{display:block!important;font-size:19px!important;letter-spacing:.7px!important;color:#27323b!important;}
.ad-slot .ad-placeholder span{display:block!important;font-size:13px!important;color:#56636d!important;}
.ad-slot .ad-placeholder small{display:block!important;font-size:11px!important;color:#7a858d!important;}
@media(max-width:600px){.ad-slot{min-height:128px!important;margin:24px 0 20px!important}.ad-slot .ad-banner{min-height:124px!important}.ad-slot .ad-placeholder{min-height:120px!important;padding:12px!important}.ad-slot .ad-placeholder b{font-size:14px!important}.ad-slot .ad-placeholder span{font-size:10px!important}.ad-slot .ad-placeholder small{font-size:8px!important}}


/* FINAL POLISH: align the second Sound School note with the main note and keep ad spaces white */
.source-note{width:min(var(--max),calc(100% - 32px));box-sizing:border-box;margin:20px auto 0;padding:13px 15px;background:#101a23;border:0;border-left:3px solid var(--gold);border-radius:10px;color:#bac5cd;font-size:13px;line-height:1.55;}
.ad-slot .ad-banner,.ad-slot .ad-placeholder{background:#fff!important;}
.ad-slot .ad-placeholder{color:#27323b!important;}
.ad-slot .ad-placeholder span{color:#56636d!important;}
.ad-slot .ad-placeholder small{color:#7a858d!important;}
