/* Merx Media House: protótipo MVP estático. Cores do brandbook. Fonte: pilha do sistema
   (Nicky Sans tem licença NÃO verificada; trocar quando confirmada). */
:root{
  --verde:#0F2624; --charcoal:#323132; --bege:#F1E8DF; --oliva:#736F3D; --terroso:#595331;
  --vermelho:#BF0A3A; --laranja:#F57F1F; --azul:#9CCCD5;
  --bg:var(--verde); --fg:var(--bege); --muted:rgba(241,232,223,.68); --line:rgba(241,232,223,.16);
  --card:#143330; --gutter:clamp(16px,4vw,56px); --max:1240px;
  --font:"Nicky Sans","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--font);line-height:1.55;-webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
section{padding:clamp(56px,9vw,120px) 0}
h1,h2,h3{line-height:1.08;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2.4rem,6.4vw,5rem)}
h2{font-size:clamp(1.8rem,4vw,3rem);margin-bottom:.6em}
h3{font-size:1.15rem}
em{font-style:normal;color:var(--laranja)}
.kicker{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem}
.btn{display:inline-block;background:var(--laranja);color:#1a0f00;padding:.95em 1.6em;border-radius:999px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font:inherit;font-weight:700;transition:transform .2s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.link{color:var(--fg);text-underline-offset:4px}

/* M01 header */
header.top{position:fixed;inset:0 0 auto 0;z-index:50;background:linear-gradient(var(--verde),transparent);}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
header.top img{height:26px;width:auto}
header.top nav{display:flex;gap:1.6rem;align-items:center}
header.top nav a{text-decoration:none;font-size:.95rem;color:var(--muted)}
header.top nav a:hover{color:var(--fg)}
header.top nav .btn{padding:.6em 1.2em;color:#1a0f00}
@media(max-width:720px){header.top nav a:not(.btn){display:none}}

/* M02 hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;padding:120px 0 64px;overflow:hidden}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,38,36,.35),var(--verde) 96%)}
.hero .wrap{position:relative;z-index:2}
.hero p{max-width:34rem;color:var(--muted);margin:1.2rem 0 2rem;font-size:1.1rem}
.hero .cta{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}

/* M03 clientes */
.clients{padding:36px 0;border-block:1px solid var(--line);overflow:hidden}
.clients .label{text-align:center;color:var(--muted);font-size:.85rem;margin-bottom:1.2rem}
.track{display:flex;gap:4rem;width:max-content;animation:marq 32s linear infinite;align-items:center}
.track img{height:34px;width:auto;opacity:.85}
@keyframes marq{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.track{animation:none}}

/* M04 */
.thesis p{max-width:46rem;font-size:clamp(1.05rem,1.8vw,1.3rem);color:var(--muted);margin-bottom:2rem}

/* grids de vídeo */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{position:relative;background:var(--card);border-radius:14px;overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column}
.card .media{position:relative;aspect-ratio:16/9;background:#0b1c1a}
.card.v .media{aspect-ratio:9/16}
.card .media video,.card .media img{width:100%;height:100%;object-fit:cover}
.card .ph{display:grid;place-items:center;height:100%;color:var(--muted);font-size:.85rem;text-align:center;padding:1rem;background:repeating-linear-gradient(135deg,#0f2724,#0f2724 12px,#12302c 12px,#12302c 24px)}
.card .meta{padding:14px 16px 18px}
.card .meta small{color:var(--muted);display:block;margin-top:.2rem}
.tag{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--azul)}
.card a.cover{position:absolute;inset:0;z-index:3}
.showcase .grid{grid-template-columns:repeat(4,1fr)}
@media(max-width:960px){.showcase .grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.showcase .grid{grid-template-columns:1fr}}
.showcase .card .media,.showcase .card.v .media{aspect-ratio:3/4}
.more{margin-top:2rem}

/* M06 soluções */
.sol{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.sol div{background:var(--bg);padding:26px}
.sol p{color:var(--muted);font-size:.95rem;margin-top:.5rem}

/* M07 cases */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px}
.rail .card{flex:0 0 min(86vw,560px);scroll-snap-align:start}

/* M08 */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.steps li{list-style:none;border-top:2px solid var(--laranja);padding-top:14px}
.steps li:before{counter-increment:s;content:"0" counter(s);color:var(--laranja);font-weight:700}
.steps b{display:block;margin:.3rem 0}
.steps span{color:var(--muted);font-size:.95rem}

/* M09 */
.cap .grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.cap video{border-radius:12px;aspect-ratio:16/9;object-fit:cover;width:100%}

/* M11 CTA */
.cta-final{position:relative;overflow:hidden;text-align:center}
.cta-final video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35}
.cta-final .wrap{position:relative}
.cta-final p{color:var(--muted);max-width:30rem;margin:0 auto 1.6rem}
form.lead{display:grid;gap:12px;max-width:520px;margin:0 auto;text-align:left}
form.lead input,form.lead textarea{width:100%;padding:.9em 1em;border-radius:10px;border:1px solid var(--line);background:rgba(15,38,36,.8);color:var(--fg);font:inherit}
form.lead label{font-size:.85rem;color:var(--muted)}
.ok{display:none;padding:1.2rem;border:1px solid var(--azul);border-radius:12px;max-width:520px;margin:0 auto}
.note{font-size:.75rem;color:var(--muted);margin-top:.8rem}

/* M12 FAQ */
details{border-top:1px solid var(--line);padding:1rem 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:700;list-style:none}
summary::after{content:"+";float:right;color:var(--laranja)}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:.6rem;max-width:42rem}

/* M13 */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:.9rem}
footer .row{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center}
footer img{height:22px}

/* páginas internas */
.page-head{padding:140px 0 24px}
.filters{display:flex;gap:.6rem;flex-wrap:wrap;margin:1.2rem 0 2rem}
.chip{padding:.45em 1em;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--fg);cursor:pointer;font:inherit;font-size:.9rem}
.chip[aria-pressed=true]{background:var(--laranja);color:#1a0f00;border-color:var(--laranja)}
.legal{max-width:760px}
.legal h2{font-size:1.25rem;margin:2rem 0 .5rem}
.legal ul{margin:.5rem 0 0 1.2rem;color:var(--muted)}
.legal p,.legal li{color:var(--muted)}
.warn{border:1px solid var(--laranja);border-radius:12px;padding:1rem 1.2rem;margin:1.2rem 0;color:var(--fg)!important}
.stage{margin:1.6rem 0 2rem}
.stage.narrow{max-width:420px}
.stage video,video.solo{width:100%;border-radius:14px;background:#000}
video.solo.v{max-width:420px;aspect-ratio:9/16;object-fit:cover}
.yt{position:relative;border-radius:14px;overflow:hidden;background:#000;cursor:pointer}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.8}
.yt button{position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:76px;height:76px;border-radius:50%;border:0;background:var(--laranja);color:#1a0f00;font-size:1.6rem;cursor:pointer}
.pend{display:inline-block;margin-top:.5rem;font-size:.7rem;color:var(--laranja)}

/* a11y */
:focus-visible{outline:3px solid var(--azul);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--laranja);color:#1a0f00;padding:.6em 1em;border-radius:8px;z-index:100}
.skip:focus{left:8px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

.photos{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.photos img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:12px}

/* botão de som do hero */
.sound{position:absolute;right:var(--gutter);top:-56px;display:inline-flex;gap:.5em;align-items:center;background:rgba(15,38,36,.75);color:var(--fg);border:1px solid var(--line);border-radius:999px;padding:.55em 1em;font:inherit;font-size:.9rem;cursor:pointer;backdrop-filter:blur(6px)}
.sound[hidden]{display:none}
.hero .wrap{position:relative}
@media(max-width:720px){.sound{top:-52px}}