:root{
    --navy:#0b2665;
    --deep:#061845;
    --blue:#0069aa;
    --sky:#e8f3fc;
    --mint:#0c9aa0;
    --orange:#f0642f;
    --ink:#172033;
    --muted:#5f6e84;
    --line:#cfd9e6;
    --soft:#f4f7fb;
    --white:#fff;
    --shadow:8px 8px 0 rgba(6,24,69,.08);
    --strong-shadow:10px 10px 0 rgba(6,24,69,.12);
    --max:1180px;
}
*{box-sizing:border-box}
*,*::before,*::after{border-radius:0!important}
html{scroll-behavior:smooth}
html.menu-locked,body.menu-locked{overflow:hidden}
body{
    margin:0;
    font-family:Pretendard,"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",Arial,sans-serif;
    color:var(--ink);
    background:#f5f7fb;
    line-height:1.58;
    word-break:keep-all;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;vertical-align:middle}
button,input,textarea,select{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
    outline:3px solid rgba(240,100,47,.45);
    outline-offset:3px;
}
.skip-link{
    position:absolute;
    left:14px;
    top:-90px;
    z-index:10000;
    padding:12px 16px;
    background:#000;
    color:#fff;
}
.skip-link:focus{top:14px}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}

/* Header */
.site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:#fff;
    border-bottom:3px solid var(--deep);
}
.header-inner{
    width:min(1280px,calc(100% - 40px));
    min-height:80px;
    margin:0 auto;
    display:flex;
    align-items:center;
    gap:26px;
}
.site-logo{margin:0;flex:0 0 auto;line-height:0}
.site-logo a{display:flex;align-items:center}
.site-logo img{width:255px;height:auto}
.gnb{flex:1;display:flex;justify-content:center;align-self:stretch}
.gnb>ul{display:flex;align-items:stretch;justify-content:center;gap:0;margin:0;padding:0;list-style:none}
.gnb>ul>li{position:relative;display:flex;align-items:stretch}
.gnb>ul>li>a{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:80px;
    padding:0 20px;
    border-left:1px solid transparent;
    border-right:1px solid transparent;
    color:var(--deep);
    font-size:17px;
    font-weight:900;
    white-space:nowrap;
}
.gnb>ul>li.active>a,
.gnb>ul>li:hover>a,
.gnb>ul>li:focus-within>a{
    background:#f1f6fb;
    color:var(--blue);
}
.gnb>ul>li.active>a::after,
.gnb>ul>li:hover>a::after,
.gnb>ul>li:focus-within>a::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:-3px;
    height:3px;
    background:var(--orange);
}
.sub-menu{
    position:absolute;
    left:50%;
    top:80px;
    transform:translateX(-50%) translateY(8px);
    width:238px;
    margin:0;
    padding:0;
    list-style:none;
    background:#fff;
    border:2px solid var(--deep);
    box-shadow:var(--strong-shadow);
    opacity:0;
    visibility:hidden;
    transition:opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.gnb>ul>li:hover .sub-menu,
.gnb>ul>li:focus-within .sub-menu{
    opacity:1;
    visibility:visible;
    transform:translateX(-50%) translateY(0);
}
.sub-menu a{
    display:block;
    padding:13px 16px;
    border-bottom:1px solid #e3eaf3;
    color:#203254;
    font-size:15px;
    font-weight:800;
}
.sub-menu li:last-child a{border-bottom:0}
.sub-menu a:hover,.sub-menu a:focus-visible{background:var(--sky);color:var(--blue)}
.header-downloads{display:flex;gap:8px;flex:0 0 auto}
.download-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:42px;
    padding:0 14px;
    border:2px solid var(--orange);
    background:var(--orange);
    color:#fff;
    font-size:15px;
    font-weight:900;
    white-space:nowrap;
}
.download-btn:hover{background:#d94f20;border-color:#d94f20}
.hamburger{
    display:none;
    width:46px;
    height:46px;
    margin-left:auto;
    padding:0;
    border:2px solid var(--deep);
    background:#fff;
    position:relative;
    cursor:pointer;
}
.hamburger span{
    display:block;
    width:24px;
    height:3px;
    margin:5px auto;
    background:var(--deep);
    transition:transform .2s ease, opacity .2s ease;
}
.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Mobile menu: header 밖 고정 레이어 */
.mobile-overlay{
    position:fixed;
    inset:0;
    z-index:3000;
    background:rgba(2,9,30,.64);
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease, visibility .2s ease;
}
.mobile-overlay.active{opacity:1;visibility:visible}
.mobile-menu{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    z-index:3010;
    width:min(430px,100vw);
    height:100dvh;
    background:#fff;
    border-left:3px solid var(--deep);
    transform:translateX(104%);
    visibility:hidden;
    transition:transform .24s ease, visibility .24s ease;
    display:flex;
    flex-direction:column;
    overflow:hidden;
}
.mobile-menu.active{transform:translateX(0);visibility:visible}
.mobile-menu-head{
    flex:0 0 auto;
    min-height:78px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 22px;
    border-bottom:3px solid var(--deep);
    background:#fff;
    color:var(--deep);
}
.mobile-menu-head strong{display:block;font-size:24px;font-weight:950;line-height:1.1}
.mobile-menu-head span{display:block;margin-top:4px;color:var(--muted);font-size:13px;font-weight:800}
.mobile-close{
    flex:0 0 auto;
    width:44px;
    height:44px;
    border:2px solid var(--deep);
    background:#fff;
    color:var(--deep);
    font-size:32px;
    line-height:1;
    cursor:pointer;
}
.mobile-menu-list{
    flex:1 1 auto;
    overflow-y:auto;
    margin:0;
    padding:0;
    list-style:none;
}
.mobile-menu-list>li{border-bottom:1px solid #dce5ef}
.mobile-parent{
    width:100%;
    min-height:60px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    border:0;
    background:#fff;
    padding:0 22px;
    color:var(--deep);
    font-size:18px;
    font-weight:950;
    text-align:left;
    cursor:pointer;
}
.mobile-parent::after{content:"+";font-size:26px;font-weight:800;color:var(--orange)}
.mobile-menu li.open .mobile-parent{background:#f0f6fc;color:var(--blue)}
.mobile-menu li.open .mobile-parent::after{content:"−"}
.mobile-sub{
    max-height:0;
    overflow:hidden;
    margin:0;
    padding:0;
    list-style:none;
    background:#f8fafc;
    transition:max-height .24s ease;
}
.mobile-sub a{
    display:block;
    padding:14px 30px;
    border-top:1px solid #e4ebf4;
    color:#263755;
    font-weight:800;
}
.mobile-sub a:hover,.mobile-sub a:focus-visible{background:#e9f3fb;color:var(--blue)}
.mobile-downloads{
    flex:0 0 auto;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
    padding:16px;
    border-top:3px solid var(--deep);
    background:#f1f6fb;
}
.mobile-downloads a{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    padding:0 12px;
    border:2px solid var(--orange);
    background:var(--orange);
    color:#fff;
    text-align:center;
    font-weight:900;
}

/* Main */
.main{min-height:60vh}
.hero{
    position:relative;
    overflow:hidden;
    padding:72px 0 66px;
    background:#eef5fb;
    border-bottom:1px solid #d9e3ee;
}
.hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        linear-gradient(90deg,rgba(0,105,170,.05) 1px,transparent 1px),
        linear-gradient(0deg,rgba(0,105,170,.05) 1px,transparent 1px);
    background-size:44px 44px;
    pointer-events:none;
}
.hero::after{
    content:"";
    position:absolute;
    top:0;
    right:0;
    width:34%;
    height:100%;
    background:linear-gradient(135deg,rgba(0,105,170,.16),rgba(6,24,69,.18));
    clip-path:polygon(24% 0,100% 0,100% 100%,0 100%);
    pointer-events:none;
}
.hero-grid{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(310px,390px);
    gap:52px;
    align-items:center;
}
.hero-copy{min-width:0}
.hero-kicker,
.hero-copy .eyebrow{
    display:inline-flex;
    flex-wrap:wrap;
    gap:8px;
    margin:0 0 18px;
    padding:8px 12px;
    border-left:6px solid var(--orange);
    background:#fff;
    color:var(--blue);
    font-size:15px;
    font-weight:950;
    letter-spacing:.02em;
}
.hero-copy h2{
    margin:0;
    color:var(--deep);
    font-size:clamp(44px,5.4vw,74px);
    line-height:1.02;
    font-weight:950;
    letter-spacing:-.065em;
}
.hero-copy h2 .accent{
    display:block;
    margin-bottom:8px;
    color:var(--blue);
    font-size:.58em;
    font-weight:900;
    letter-spacing:-.045em;
}
.hero-slogan{
    position:relative;
    margin:20px 0 0;
    padding-left:18px;
    color:#37445b;
    font-size:clamp(22px,2.7vw,34px);
    font-weight:950;
    line-height:1.22;
    letter-spacing:-.04em;
}
.hero-slogan::before{
    content:"";
    position:absolute;
    left:0;
    top:.18em;
    bottom:.18em;
    width:6px;
    background:var(--blue);
}
.hero-meta{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
    margin:30px 0 0;
    max-width:690px;
}
.hero-meta .meta-card{
    padding:18px 20px;
    background:#fff;
    border:2px solid #d4deeb;
    box-shadow:var(--shadow);
}
.meta-label{
    display:block;
    margin-bottom:6px;
    color:var(--blue);
    font-size:14px;
    font-weight:950;
}
.meta-value{
    display:block;
    color:var(--deep);
    font-size:18px;
    font-weight:900;
    line-height:1.45;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:50px;
    padding:0 22px;
    border:2px solid transparent;
    background:#fff;
    font-weight:950;
    transition:background .16s ease, color .16s ease, border-color .16s ease, transform .16s ease;
    cursor:pointer;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--deep);border-color:var(--deep);color:#fff}
.btn-teal{background:var(--mint);border-color:var(--mint);color:#fff}
.btn-orange{background:var(--orange);border-color:var(--orange);color:#fff}
.btn-outline{background:#fff;color:var(--deep);border-color:var(--deep)}
.btn-outline:hover{background:var(--sky);color:var(--blue);border-color:var(--blue)}
.hero-poster{
    justify-self:end;
    position:relative;
    width:min(390px,100%);
}
.hero-poster::before{
    content:"";
    position:absolute;
    inset:24px -20px -20px 24px;
    background:#cfe3f4;
    border:2px solid rgba(6,24,69,.14);
    z-index:0;
}
.poster-frame{
    position:relative;
    z-index:1;
    display:block;
    overflow:hidden;
    background:#fff;
    padding:10px;
    border:3px solid var(--deep);
    box-shadow:var(--strong-shadow);
}
.poster-frame img{display:block;width:100%}
.poster-note{
    position:relative;
    z-index:2;
    margin-top:12px;
    padding:10px 12px;
    border-left:6px solid var(--orange);
    background:#fff;
    color:var(--deep);
    font-weight:900;
}

.quick-section{padding:0 0 58px;background:#fff}
.quick-grid{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:14px;
    margin-top:-28px;
}
.quick-card{
    position:relative;
    display:block;
    min-height:148px;
    padding:26px 56px 24px 26px;
    border:2px solid var(--deep);
    background:#fff;
    box-shadow:var(--shadow);
    overflow:hidden;
}
.quick-card::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    bottom:0;
    width:8px;
    background:var(--orange);
}
.quick-card::after{
    content:"→";
    position:absolute;
    right:22px;
    top:22px;
    color:var(--blue);
    font-size:28px;
    font-weight:900;
}
.quick-card strong{display:block;margin-bottom:8px;color:var(--deep);font-size:22px;font-weight:950;letter-spacing:-.03em}
.quick-card span{display:block;color:var(--muted);font-weight:800;line-height:1.45}
.quick-card:hover{background:#f3f8fd;transform:translateY(-2px)}

.section{padding:70px 0;background:#f5f7fb}
.section-title{
    margin:0 0 12px;
    color:var(--deep);
    font-size:36px;
    line-height:1.2;
    font-weight:950;
    letter-spacing:-.04em;
    text-align:center;
}
.section-title::after{
    content:"";
    display:block;
    width:58px;
    height:5px;
    margin:14px auto 0;
    background:var(--orange);
}
.section-desc{max-width:760px;margin:0 auto 34px;color:var(--muted);font-size:18px;text-align:center;font-weight:800}
.program-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.program-card{
    padding:24px;
    background:#fff;
    border:2px solid #d7e1ec;
    border-top:6px solid var(--blue);
    box-shadow:var(--shadow);
}
.program-card .num{
    display:inline-flex;
    width:44px;
    height:40px;
    align-items:center;
    justify-content:center;
    margin-bottom:18px;
    background:var(--deep);
    color:#fff;
    font-weight:950;
}
.program-card h3{margin:0 0 10px;color:var(--deep);font-size:21px;font-weight:950;line-height:1.32;letter-spacing:-.03em}
.program-card p{margin:0;color:var(--muted);font-weight:800;line-height:1.5}
.video-ready{
    margin-top:34px;
    padding:32px 36px;
    background:linear-gradient(90deg,var(--deep),#10347c);
    color:#fff;
    border-left:10px solid var(--orange);
    box-shadow:var(--strong-shadow);
}
.video-ready strong{display:block;font-size:25px;font-weight:950;margin-bottom:8px}
.video-ready p{margin:0;color:rgba(255,255,255,.82);font-weight:800}

.site-footer{margin-top:70px;background:#fff;border-top:3px solid var(--deep)}
.footer-inner{width:min(var(--max),calc(100% - 40px));margin:0 auto;padding:30px 0;display:flex;align-items:center;gap:34px}
.footer-brand img{width:260px}
.footer-info p{margin:4px 0;color:#4f5d78;font-weight:800}
.footer-copy{font-size:14px;color:#77839a!important}

@media (max-width:1230px){
    .gnb,.header-downloads{display:none}
    .hamburger{display:block}
    .header-inner{min-height:72px}
    .site-logo img{width:230px}
}
@media (max-width:900px){
    .container{width:min(100% - 28px,var(--max))}
    .header-inner{width:min(100% - 28px,1280px)}
    .hero{padding:44px 0 54px}
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .hero-copy h2{font-size:clamp(38px,11vw,60px)}
    .hero-meta{grid-template-columns:1fr}
    .hero-poster{justify-self:center;width:min(340px,82vw)}
    .quick-grid,.program-cards{grid-template-columns:1fr}
    .quick-grid{margin-top:0;padding-top:24px}
    .section{padding:54px 0}
    .footer-inner{display:block;text-align:center}
    .footer-brand{margin-bottom:18px}
}
@media (max-width:768px){
    .mobile-menu{width:100vw;border-left:0}
}
@media (max-width:520px){
    body{line-height:1.5}
    .site-logo img{width:190px}
    .header-inner{min-height:68px;width:calc(100% - 24px)}
    .hamburger{width:44px;height:44px}
    .mobile-menu-head{min-height:70px;padding:14px 16px}
    .mobile-menu-head strong{font-size:22px}
    .mobile-downloads{grid-template-columns:1fr}
    .hero{padding:34px 0 44px}
    .hero-kicker,.hero-copy .eyebrow{font-size:13px}
    .hero-actions .btn{width:100%}
    .hero-poster{width:min(306px,90vw)}
    .quick-card{min-height:auto;padding:22px 50px 22px 22px}
    .section-title{font-size:30px}
    .section-desc{font-size:16px}
}