/* 광고영상 제작(/ad_video/) — 유튜브 페이지와 다른 '프로덕션' 톤: 검은 바탕, 영상이 먼저, 글은 짧게 */
:root{--av-bg:#07090c;--av-bg2:#0f1216;--av-line:rgba(255,255,255,.12);--av-dim:#8b939d}

/* 1. 첫 화면 — 왼쪽 약속, 오른쪽 선명한 대표작 화면, 아래 함께한 브랜드 */
.av-hero{position:relative;background:radial-gradient(90% 70% at 75% 30%,#151b24 0%,var(--av-bg) 60%);color:#fff;overflow:hidden;padding:150px 0 0}
.av-hero-grid{max-width:1400px;margin:0 auto;padding:0 40px;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.15fr);gap:64px;align-items:center}
.av-kicker{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:#aeb6bf;margin:0 0 22px}
.av-kicker::before{content:"";width:24px;height:2px;background:var(--magenta)}
.av-hero h1{margin:0;font-size:clamp(36px,4.2vw,62px);font-weight:800;letter-spacing:-.05em;line-height:1.16;word-break:keep-all}
.av-hero h1 span{color:transparent;background:linear-gradient(90deg,#fff 0%,#ff7ab8 55%,var(--magenta) 100%);-webkit-background-clip:text;background-clip:text}
.av-lead{margin:24px 0 0;max-width:500px;font-size:16.5px;line-height:1.75;color:#b8c0c9;word-break:keep-all}
.av-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.av-btns .btn{min-width:152px;justify-content:center}
.av-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.av-ghost:hover{background:#fff;color:var(--av-bg);border-color:#fff}
.av-frame{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#000;cursor:pointer;box-shadow:0 40px 80px -30px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.08)}
.av-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.06);transition:opacity .9s ease,transform 5s linear}
.av-frame img.on{opacity:1;transform:scale(1)}
.av-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.6) 0%,transparent 35%);pointer-events:none}
.av-frame:focus-visible{outline:3px solid var(--magenta);outline-offset:4px}
.av-frame:hover .av-play{transform:scale(1.08);background:var(--magenta);border-color:var(--magenta)}
.av-cap{position:absolute;left:20px;bottom:18px;z-index:2;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700}
.av-cap i{width:8px;height:8px;border-radius:50%;background:var(--magenta);animation:avPulse 2s infinite}
.av-prog{position:absolute;right:20px;bottom:24px;z-index:2;display:flex;gap:6px}
.av-prog i{width:18px;height:3px;border-radius:2px;background:rgba(255,255,255,.3);transition:background .4s,width .4s}
.av-prog i.on{width:34px;background:#fff}
.av-proof{max-width:1400px;margin:96px auto 0;padding:30px 40px 34px;border-top:1px solid var(--av-line);display:flex;align-items:center;gap:40px}
.av-proof p{margin:0;flex:none;font-size:13px;font-weight:700;color:#7d8590}
.av-proof ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:14px 44px}
.av-proof li{font-size:clamp(17px,1.5vw,21px);font-weight:800;letter-spacing:-.03em;color:#e9edf1}
.av-proof li.more a{font-size:14px;font-weight:700;color:#7d8590;border-bottom:1px solid #4a525b}
@keyframes avPulse{0%{box-shadow:0 0 0 0 rgba(229,0,125,.6)}70%{box-shadow:0 0 0 10px rgba(229,0,125,0)}100%{box-shadow:0 0 0 0 rgba(229,0,125,0)}}

/* 공통 머리글 */
.av-head{display:flex;align-items:flex-end;gap:20px;margin-bottom:40px}
.av-head h2{margin:0;font-size:clamp(28px,3.4vw,48px);font-weight:900;letter-spacing:-.045em;line-height:1.15}
.av-idx{margin:0 0 12px;font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--magenta)}
.av-head>div,.av-head-l{display:block}
.av-head:not(.av-head-l){flex-wrap:wrap}.av-head:not(.av-head-l) .av-idx{flex-basis:100%;margin-bottom:-8px}
.av-more,.av-note{margin-left:auto;font-size:14px;font-weight:700;color:var(--av-dim)}
.av-more{color:#fff;border-bottom:1.5px solid #fff;padding-bottom:2px}

/* 2. 대표 작업 — 큰 화면 하나 + 목록, 목록에 올리면 화면이 바뀐다 */
.av-reel{background:var(--av-bg);color:#fff;padding:120px 0 120px}
.av-reel-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(300px,1fr);gap:36px;align-items:start}
.av-stage{position:relative;width:100%;aspect-ratio:16/9;background:#000;overflow:hidden;cursor:pointer;border-radius:4px}
.av-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.04);transition:opacity .6s ease,transform 1.2s var(--ease)}
.av-stage img.on{opacity:1;transform:none}
.av-stage::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.75) 0%,transparent 40%)}
.av-play{position:absolute;left:50%;top:50%;width:84px;height:84px;margin:-42px 0 0 -42px;border-radius:50%;background:rgba(255,255,255,.14);backdrop-filter:blur(8px);border:1.5px solid rgba(255,255,255,.6);z-index:2;transition:transform .3s var(--ease),background .3s}
.av-play::after{content:"";position:absolute;left:34px;top:27px;border-style:solid;border-width:15px 0 15px 22px;border-color:transparent transparent transparent #fff}
.av-stage:hover .av-play,.av-stage:focus-visible .av-play{transform:scale(1.08);background:var(--magenta);border-color:var(--magenta)}
.av-stage:focus-visible{outline:3px solid var(--magenta);outline-offset:4px}
.av-credit{position:absolute;left:28px;right:28px;bottom:22px;z-index:2;display:flex;gap:40px;margin:0}
.av-credit dt{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9aa3ad}
.av-credit dd{margin:4px 0 0;font-size:15px;font-weight:800}
.av-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--av-line);display:flex;flex-direction:column}
.av-list li{border-bottom:1px solid var(--av-line)}
.av-list button{all:unset;box-sizing:border-box;cursor:pointer;width:100%;height:100%;min-height:56px;display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:14px;padding:10px 4px;color:#7d8590;transition:color .25s}
.av-list .n{font-family:var(--disp);font-size:13px;font-weight:800}
.av-list .t{font-size:15px;font-weight:600;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.av-list .t b{display:block;font-size:12.5px;font-weight:800;margin-bottom:2px}
.av-list .f{font-size:12px;font-weight:700}
.av-list button.on,.av-list button:hover{color:#fff}
.av-list button.on .n{color:var(--magenta)}
.av-list button:focus-visible{outline:2px solid var(--magenta);outline-offset:-2px}

/* 3. 들어 본 말 — 밝은 바탕, 큰 따옴표 카드 3장 */
.av-pain{background:#f4f3ef;padding:120px 0}
.av-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.av-card{background:#fff;border-radius:20px;padding:34px 30px 30px;display:flex;flex-direction:column}
.av-card q{display:block;quotes:none;font-size:clamp(20px,1.8vw,24px);font-weight:800;letter-spacing:-.035em;line-height:1.38;color:var(--ink)}
.av-card q::before{content:"“";display:block;font-family:var(--disp);font-size:56px;line-height:.7;color:var(--magenta);margin-bottom:10px}
.av-card p{margin:18px 0 26px;font-size:15px;line-height:1.7;color:var(--ink2)}
.av-fmt2,.av-bar,.av-loop{margin-top:auto;height:96px;background:var(--av-bg);border-radius:12px;padding:14px}
.av-fmt2{display:flex;gap:8px;align-items:stretch}
.av-fmt2 span{border:1.5px solid rgba(255,255,255,.5);border-radius:4px;color:#fff;font-family:var(--disp);font-size:13px;font-weight:800;display:flex;align-items:flex-end;padding:6px 8px}
.av-fmt2 .w{flex:2.4;border-color:var(--magenta)}.av-fmt2 .v{flex:.75}.av-fmt2 .s{flex:1.3}.av-fmt2 .b{flex:1;background:rgba(255,255,255,.1)}
.av-bar{display:grid;grid-template-columns:repeat(4,1fr);align-items:end;gap:8px;position:relative;padding-bottom:30px}
.av-bar i{display:block;height:calc(var(--w) * .52);background:linear-gradient(180deg,var(--magenta),#7a1650);border-radius:3px 3px 0 0}
.av-bar small{position:absolute;left:14px;bottom:9px;font-size:11px;color:#8b939d;font-weight:600}
.av-loop{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;align-items:center}
.av-loop span{position:relative;text-align:center;color:#fff;font-size:13px;font-weight:800;padding:12px 0;border:1.5px solid rgba(255,255,255,.35);border-radius:999px}
.av-loop span:nth-child(2){border-color:var(--magenta)}

/* 4. 전체 작업 — 검은 바탕, 영상 카드 */
.av-work{background:var(--av-bg2);color:#fff;padding:120px 0}
.av-work .chips{margin-bottom:30px}
.av-work .chips button{background:transparent;color:#aab2bc;border:1px solid var(--av-line);border-radius:999px}
.av-work .chips button[aria-pressed=true]{background:#fff;color:var(--av-bg);border-color:#fff}
.av-work .vgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:34px 20px}
.av-work .vth{border-radius:6px;background:#1a1f25}
.av-work .vfmt{color:#8b939d;font-weight:700}
.av-work .vcard b{font-size:16.5px;color:#fff}
.av-work .vwall-more .btn{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.av-work .vwall-more .btn:hover{background:#fff;color:var(--av-bg)}

/* 5. 만드는 영상 — 6칸, 마우스를 올리면 그 형식의 실제 작업이 보인다 */
.av-what{background:#fff;padding:120px 0}
.av-svc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:2px solid var(--ink)}
.av-svc-i{position:relative;display:flex;flex-direction:column;gap:8px;padding:30px 28px 34px;min-height:230px;border-bottom:1px solid var(--line);color:var(--ink);overflow:hidden;isolation:isolate}
.av-svc-i:not(:nth-child(3n)){border-right:1px solid var(--line)}
.av-svc-i .ph{position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .45s ease}
.av-svc-i .ph img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 1.4s var(--ease)}
.av-svc-i .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,9,12,.55),rgba(7,9,12,.88))}
.av-svc-i .n{font-family:var(--disp);font-size:13px;font-weight:800;color:var(--magenta);margin-bottom:auto}
.av-svc-i b{font-size:clamp(21px,1.9vw,26px);font-weight:900;letter-spacing:-.04em;margin-top:40px}
.av-svc-i .w{font-size:14.5px;color:var(--ink2);line-height:1.55;transition:color .3s}
.av-svc-i .l{font-size:12.5px;font-weight:800;color:var(--ink3);transition:color .3s}
.av-svc-i:hover,.av-svc-i:focus-visible{color:#fff}
.av-svc-i:hover .ph,.av-svc-i:focus-visible .ph{opacity:1}
.av-svc-i:hover .ph img{transform:none}
.av-svc-i:hover .w,.av-svc-i:hover .l,.av-svc-i:focus-visible .w,.av-svc-i:focus-visible .l{color:#d6dbe1}
.av-svc-i:focus-visible{outline:3px solid var(--magenta);outline-offset:-3px}

/* 6. 진행 — 가로 6단계, 마지막 '광고 집행'만 강조 */
.av-flow{background:var(--av-bg);color:#fff;padding:120px 0 110px}
.av-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));counter-reset:s;border-top:1px solid var(--av-line)}
.av-steps li{counter-increment:s;padding:26px 18px 0 0;position:relative}
.av-steps li::before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--disp);font-size:13px;font-weight:800;color:var(--av-dim);margin-bottom:28px}
.av-steps li::after{content:"";position:absolute;left:0;top:-1px;width:28px;height:2px;background:#fff}
.av-steps b{display:block;font-size:19px;font-weight:800;letter-spacing:-.03em;margin-bottom:10px}
.av-steps span{font-size:14px;line-height:1.6;color:#aab2bc}
.av-steps li.kr::before{color:var(--magenta)}.av-steps li.kr::after{background:var(--magenta);width:100%}
.av-steps li.kr b{color:var(--magenta)}
.av-team{margin:72px 0 0;padding-top:24px;border-top:1px solid var(--av-line);font-size:14.5px;line-height:1.7;color:#aab2bc;max-width:780px}
.av-team b{color:#fff;margin-right:12px;font-size:13px}

/* 반응형 */
@media (max-width:1100px){
  .av-hero-grid{grid-template-columns:1fr;gap:44px}
  .av-hero{padding-top:128px}
  .av-proof{margin-top:64px}
  .av-reel-grid{grid-template-columns:1fr}
  .av-list{flex-direction:row;overflow-x:auto;scroll-snap-type:x mandatory;border:0;gap:10px;scrollbar-width:none}
  .av-list::-webkit-scrollbar{display:none}
  .av-list li{flex:0 0 220px;border:1px solid var(--av-line);border-radius:8px;scroll-snap-align:start}
  .av-list button{grid-template-columns:28px minmax(0,1fr);padding:14px}
  .av-list .f{display:none}
  .av-cards{grid-template-columns:1fr}
  .av-steps{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:36px}
  .av-svc{grid-template-columns:repeat(2,minmax(0,1fr))}
  .av-svc-i:not(:nth-child(3n)){border-right:0}.av-svc-i:nth-child(odd){border-right:1px solid var(--line)}
  .av-work .vgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .av-hero{padding-top:108px}
  .av-hero-grid{padding:0 20px;gap:32px}
  .av-lead{font-size:15.5px}
  .av-btns .btn{flex:1;min-width:0}
  .av-frame{border-radius:10px}
  .av-cap{left:14px;bottom:12px;font-size:12.5px}.av-prog{right:14px;bottom:16px}.av-prog i{width:10px}.av-prog i.on{width:20px}
  .av-proof{padding:22px 20px 26px;margin-top:48px;flex-direction:column;align-items:flex-start;gap:12px}
  .av-proof ul{gap:8px 22px}
  .av-reel,.av-pain,.av-work,.av-what,.av-flow{padding:76px 0}
  .av-head{margin-bottom:28px}
  .av-credit{left:16px;right:16px;bottom:12px;gap:22px}.av-credit dd{font-size:13px}
  .av-play{width:64px;height:64px;margin:-32px 0 0 -32px}.av-play::after{left:25px;top:20px;border-width:12px 0 12px 18px}
  .av-card{padding:28px 22px 22px}
  .av-svc{grid-template-columns:1fr}.av-svc-i{border-right:0!important;min-height:0;padding:24px 4px}
  .av-svc-i b{margin-top:14px}
  .av-steps{grid-template-columns:1fr 1fr}
  .av-work .vgrid{grid-template-columns:1fr 1fr;gap:22px 12px}.av-work .vcard b{font-size:14.5px}
  .av-more,.av-note{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  .av-cap i{animation:none}.av-frame img{transition:opacity .3s}
  .av-stage img{transition:none}
}