/* ===== EBOOK 서브페이지 전용 스타일 (공용 style.css 위에 얹힘) ===== */

/* 현재 메뉴 강조 */
.nav-menu a.current{color:var(--red);font-weight:800;position:relative;}
.nav-menu a.current::after{content:"";position:absolute;top:-3px;right:-10px;width:6px;height:6px;border-radius:999px;background:var(--red);}
/* ===== 헤더 ===== */
.nav-in{display:flex;align-items:center;justify-content:space-between;background:rgba(18,19,23,.05);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:0px solid rgba(255,255,255,.1);border-radius:50rem;padding:0.95rem 1.75rem 1.05rem;box-shadow:0 2px 16px rgba(0,0,0,.25);transition:background .3s;}

/* 스크롤 시: 흰 유리로 전환 */
.nav.scrolled .nav-in{background:rgba(14,15,18,.42);}

.nav.scrolled .logo .wm{color:#fff;}
.logo .wm-div{width:1px;height:24px;background:rgba(255,255,255,.3);transition:background .3s;}
.nav.scrolled .logo .wm-div{background:rgba(255,255,255,.3);}
.logo .wm-sub{font-size:10px;font-weight:700;line-height:1.15;color:rgba(255,255,255,.8);transition:color .3s;}
.nav.scrolled .logo .wm-sub{color:rgba(255,255,255,.8);}
.nav-menu{display:flex;align-items:center;gap:45px;font-size:17px;font-weight: 600;color:rgba(255,255,255,.85);transition:color .3s;}
.nav.scrolled .nav-menu{color:rgba(255,255,255,.85);}
.nav-menu a:hover{color:#fff;}
.nav.scrolled .nav-menu a:hover{color:#fff;}
.nav-cta{font-size:15.5px;font-weight:600;padding:11px 24px;background:var(--red);color:#fff !important;border-radius:999px;transition:.18s;}
.nav-cta:hover{background:var(--red-d);}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:10px;}
.burger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:background .3s;}
.nav.scrolled .burger span{background:#fff;}
/* 서브 히어로 (다크 배너) */
.subhero{position:relative;overflow:hidden;background:linear-gradient(160deg,#191B20 0%,#101216 60%,#0C0D10 100%);color:#fff;padding:clamp(150px,20vh,214px) 0 clamp(64px,9vw,112px);}
.subhero::before{content:"";position:absolute;top:-140px;right:-90px;width:540px;height:540px;background:radial-gradient(circle,rgba(233,68,68,.4),transparent 62%);}
.subhero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.02) 0 1px,transparent 1px 78px);pointer-events:none;}
.subhero .shell{position:relative;z-index:1;}
.crumb{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.5);margin:0 0 20px;letter-spacing:.03em;}
.crumb a{color:rgba(255,255,255,.5);}
.crumb a:hover{color:#fff;}
.subhero .eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--red);margin:0 0 18px;}
.subhero h1{font-size:clamp(2.2rem,5.5vw,3.6rem);font-weight:800;line-height:1.14;letter-spacing:-.03em;margin:0 0 22px;}
.subhero h1 em{font-style:normal;color:#FF8A7D;}
.subhero .lead{font-size:clamp(1rem,2vw,1.2rem);color:rgba(255,255,255,.8);max-width:54ch;line-height:1.72;margin:0 0 34px;}
.subhero .btns{display:flex;gap:12px;flex-wrap:wrap;}
.subhero .btns a{font-size:15px;font-weight:600;padding:15px 30px;border-radius:999px;transition:.2s;display:inline-flex;align-items:center;gap:8px;}
.subhero .btns .fill{background:var(--red);color:#fff;box-shadow:0 12px 34px rgba(233,68,68,.4);}
.subhero .btns .fill:hover{background:var(--red-d);transform:translateY(-2px);}
.subhero .btns .ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25);}
.subhero .btns .ghost:hover{background:rgba(255,255,255,.16);}

/* 소개 2단 */
.ebk-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,64px);align-items:center;}
.ebk-intro .txt h2{font-size:clamp(1.6rem,3.4vw,2.2rem);font-weight:800;letter-spacing:-.02em;line-height:1.3;margin:0 0 18px;}
.ebk-intro .txt .lbl{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin:0 0 14px;}
.ebk-intro .txt p{font-size:15.5px;color:var(--gray);line-height:1.85;margin:0 0 14px;}
.ebk-intro .txt p b{color:var(--ink);font-weight:700;}
.ebk-visual{aspect-ratio:4/3;border-radius:var(--r-xl);background:linear-gradient(150deg,var(--red-bg),#fff 70%);border:1px solid var(--line);box-shadow:var(--sh-m);display:grid;place-items:center;overflow:hidden;position:relative;}
.ebk-visual .book{width:56%;aspect-ratio:3/4;background:#fff;border-radius:8px 14px 14px 8px;box-shadow:0 24px 60px rgba(20,30,50,.22);position:relative;border:1px solid var(--line);overflow:hidden;}
.ebk-visual .book::before{content:"";position:absolute;left:0;top:0;bottom:0;width:8px;background:var(--red);}
.ebk-visual .book .bl{position:absolute;left:24px;right:20px;height:9px;border-radius:4px;background:var(--line-2);}
.ebk-visual .book .b1{top:26px;width:46%;background:var(--red-bg);}
.ebk-visual .book .b2{top:52px;}
.ebk-visual .book .b3{top:70px;width:80%;}
.ebk-visual .book .b4{top:88px;width:66%;}
.ebk-visual .book .bimg{position:absolute;left:24px;right:20px;top:118px;bottom:26px;border-radius:8px;background:linear-gradient(150deg,var(--red-bg),#EEF1F5);}
.ebk-visual .tag{position:absolute;bottom:18px;right:18px;font-family:var(--mono);font-size:11px;font-weight:600;color:#fff;background:var(--red);padding:7px 13px;border-radius:999px;box-shadow:var(--sh-r);}

/* 기능 4 */
.ebk-feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.ebk-feat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--sh);transition:transform .25s,border-color .2s,box-shadow .25s;}
.ebk-feat:hover{transform:translateY(-4px);border-color:var(--red-line);box-shadow:var(--sh-m);}
.ebk-feat .ic{width:48px;height:48px;border-radius:13px;background:var(--red-bg);color:var(--red);display:grid;place-items:center;margin-bottom:18px;}
.ebk-feat .ic svg{width:24px;height:24px;}
.ebk-feat h3{font-size:16px;font-weight:700;margin:0 0 8px;letter-spacing:-.01em;}
.ebk-feat p{font-size:13.5px;color:var(--gray);margin:0;line-height:1.65;}

/* 차별 기능 (다크) */
.ebk-diff{background:var(--ink);color:#fff;}
.ebk-diff .sec-head h2{color:#fff;}
.ebk-diff .sec-head .lbl{color:#FF8A7D;}
.ebk-diff .sec-head p{color:rgba(255,255,255,.6);}
.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.diff{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r);padding:26px 24px;}
.diff .k{font-family:var(--mono);font-size:12px;color:#FF8A7D;letter-spacing:.08em;}
.diff h3{font-size:16px;font-weight:700;margin:12px 0 8px;color:#fff;letter-spacing:-.01em;}
.diff p{font-size:13.5px;color:rgba(255,255,255,.66);margin:0;line-height:1.65;}

/* 활용 포맷 chips */
.fmt-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;}
.fmt-chip{font-size:14px;font-weight:600;color:var(--ink-2);padding:13px 24px;border:1px solid var(--line);background:var(--bg);border-radius:999px;}
.fmt-chip.on{border-color:var(--red-line);background:var(--red-bg);color:var(--red);}

/* 문의 폼 */
.ebk-form-wrap{max-width:760px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-xl);padding:clamp(28px,4vw,48px);box-shadow:var(--sh-m);}
.ebk-form{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;}
.ebk-form .full{grid-column:1/-1;}
.ebk-form label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin:0 0 7px;}
.ebk-form label .req{color:var(--red);margin-left:2px;}
.ebk-form input,.ebk-form textarea{width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:13px 15px;transition:border-color .18s,box-shadow .18s;}
.ebk-form input::placeholder,.ebk-form textarea::placeholder{color:var(--gray-2);}
.ebk-form input:focus,.ebk-form textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px var(--red-bg);}
.ebk-form textarea{min-height:130px;resize:vertical;}
.ebk-agree{grid-column:1/-1;display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--gray);line-height:1.6;}
.ebk-agree input{width:18px;height:18px;flex:none;margin-top:1px;accent-color:var(--red);}
.ebk-submit{grid-column:1/-1;display:flex;justify-content:center;margin-top:4px;}
.ebk-submit button{font-size:15px;font-weight:700;color:#fff;background:var(--red);border:0;border-radius:999px;padding:16px 46px;cursor:pointer;transition:.18s;}
.ebk-submit button:hover{background:var(--red-d);transform:translateY(-2px);}
.ebk-note{text-align:center;font-size:12.5px;color:var(--gray-2);margin:16px 0 0;}
.form-done{grid-column:1/-1;text-align:center;color:var(--red);font-weight:700;font-size:14.5px;margin:2px 0 0;display:none;}
.form-done.show{display:block;}

@media (max-width:940px){
  .ebk-intro{grid-template-columns:1fr;}
  .ebk-feats{grid-template-columns:1fr 1fr;}
  .diff-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .ebk-feats{grid-template-columns:1fr;}
  .ebk-form{grid-template-columns:1fr;}
}

/* MNAV-FIX: 모바일 헤더 복구 (ebook.css가 style.css 헤더 규칙을 덮어 버거/메뉴가 깨지던 문제) */
@media (max-width:940px){ .nav-menu{display:none !important;} .burger{display:flex !important;} }