:root {
    --accent: #4b75ff;
    --accent-dim: #2c4ebe;
    --accent-glow: rgba(93, 123, 255, .18);
    --bg: #080810;
    --bg2: #0d0d1a;
    --bg3: #11111f;
    --text: #f0eeff;
    --text-mid: #dbdae6;
    --muted: #a5a5b3;
    --border: rgba(93, 96, 255, .2);
    --white: #ffffff;
    --paddingLR: 50px;
    --radius1:6px;
}
@media (max-width: 1200px) {
    :root {
    --paddingLR:2em;
   }
}
@media (max-width: 900px) {
    :root {
    --paddingLR:1em;
   }
}

/* ===== RESET & BASE ===== */
*, *::before, *::after{box-sizing: border-box; margin: 0; padding: 0;}
html{scroll-behavior: smooth;}
body{background: var(--bg); color: var(--text);}
#wrap{overflow: hidden;}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar{width: 3px;}
::-webkit-scrollbar-track{background: #88888866;}
::-webkit-scrollbar-thumb{background: var(--accent); border-radius: 2px;}

/* ===== NAV ===== */
nav{position: fixed; top: 0; left: 0; right: 0; z-index: 900; display: flex; align-items: center; justify-content: space-between; padding: 15px var(--paddingLR); background: linear-gradient(to bottom, var(--bg), transparent);}

.nav-logo{display: block; width: 140px; height: 50px; background:url(../img/common/logo_w.png) no-repeat center/contain;}
nav.scrolled .nav-logo{background:url(../img/common/logo.png) no-repeat center/contain;}

.nav-links{display: flex; gap: 50px; list-style: none; transform:translateY(-2px);}
.nav-links a{font-family: 'Montserrat', sans-serif; font-size: .8em; font-weight: 600; letter-spacing: .1em; color: var(--white); text-decoration: none; text-transform: uppercase; transition: color .2s;}
.nav-links a:hover{color: var(--accent);}
nav.scrolled .nav-links a{color: var(--text-mid);}

.nav-cta{font-family: 'Montserrat', sans-serif; font-size: .8em; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; background: var(--accent); border: none; color: #fff; padding: .5em 1.3em; border-radius: 2px; transition: opacity .2s, transform .2s;}
.nav-cta:hover{background: var(--accent-dim);}
@media (max-width: 1200px) {
  .nav-links{gap:30px;}
  .nav-logo{width: 120px;}
}
@media (max-width: 900px) {
  nav{padding: 12px var(--paddingLR);}
  .nav-logo{width: 110px; height: 40px;}
  .nav-links{display: none;}
  .nav-cta{padding: .45em 1em;}
}

/* ===== reveal ===== */
.reveal{opacity: 0; transform: translateY(36px); transition: opacity .75s ease, transform .75s ease;}
.reveal.visible { opacity: 1; transform: none; }
.d1{transition-delay:.1s;} .d2{transition-delay:.2s;} .d3{transition-delay:.32s;} .d4{transition-delay:.44s;}

/* ===== HERO ===== */
#home{min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 20px var(--paddingLR) 10px; position: relative; overflow: hidden; background: var(--bg-dark); justify-content: center;}
.hero-bg{position: absolute; inset: 0; background: radial-gradient(ellipse 65% 55% at 80% 35%, rgba(75,117,255,.22) 0%, transparent 60%),radial-gradient(ellipse 45% 50% at 10% 75%, rgba(75,117,255,.1) 0%, transparent 55%), var(--bg-dark);}
.hero-video-overlay{position: absolute; inset: 0; z-index: 2; background: linear-gradient(0deg, rgba(8,8,16,1)10%, rgba(8,8,16,.1) 50%); pointer-events: none;}
.main-video{position: absolute; top: 50%; left: 50%; width: 100%; height: 100%; transform: translate(-50%, -50%); pointer-events: none; border: none; object-fit: cover;}
.hero-grid{position: absolute; inset: 0; pointer-events: none; background:rgba(0,0,0,.6);}
.hero-eyebrow{font-family: 'Montserrat', sans-serif; font-size: .7em; font-weight: 600;  letter-spacing: .28em; color: var(--accent); text-transform: uppercase;  margin-bottom: 28px; position: relative; z-index: 2; opacity: 0; animation: fadeUp .8s .3s forwards;}

.hero-title{font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: clamp(3.2em, 10.5vw, 5em); line-height: 1; color: #fff; position: relative; z-index: 2; opacity: 0; animation: fadeUp .9s .5s forwards;}
.hero-title em{color: var(--accent);}
.hero-sub{margin-top: 36px; font-size: 1em; font-weight: 400; color: rgba(255,255,255,.5); max-width: 480px; line-height: 1.9; position: relative; z-index: 2; opacity: 0; animation: fadeUp .9s .7s forwards;}
.hero-actions{display: flex; gap: 16px; align-items: center; margin-top: 52px; position: relative; z-index: 2; opacity: 0; animation: fadeUp .9s .9s forwards;}
.main-btn{display: inline-block; padding: .8em 2em; font-size: .85em;  font-weight: 600; letter-spacing: .1em; text-transform: uppercase; text-decoration: none; border-radius: 5px;  transition: opacity .2s, transform .2s; min-width:120px; text-align:center;}
.btn-primary{background: var(--accent); color: #fff;}
.btn-primary:hover{background: var(--accent-dim); transform: translateY(-2px);}
.btn-ghost{border: 1.5px solid rgba(255,255,255,.2); color: rgba(255,255,255,.65);}
.btn-ghost:hover{border-color: var(--accent); color: #fff; transform: translateY(-2px);}
.hero-scroll {position: absolute; bottom: 0; right: var(--paddingLR); font-family: 'Montserrat', sans-serif; font-size: .58em; font-weight: 600; letter-spacing: .22em; color: rgba(255,255,255,.5); text-transform: uppercase; writing-mode: vertical-rl; display: flex; align-items: center; gap: 12px; opacity: 0; animation: fadeUp 1s 1.2s forwards; z-index: 10;}
.hero-scroll::after{content: ''; display: block; width: 1px; height: 56px; background: linear-gradient(to bottom, transparent, rgba(75,117,255,.7), transparent); background-size: 100% 200%; animation: scrollLine 2s infinite linear;}

@keyframes scrollLine {
  0% { background-position: 0% 100%; }
  100% { background-position: 0% -100%; }
}

@media (max-width: 900px) {
  .hero-title{line-height: 1.2;}
  .hero-scroll { display: none; }
}

/* SECTION BASE */
section{padding: 8em var(--paddingLR); position: relative;}
.btn-outline{padding: .9em 2.4em; background: transparent; color: var(--muted);  font-family: 'Montserrat', sans-serif; font-size: .72em; letter-spacing: .15em;  text-transform: uppercase; text-decoration: none; border: 1px solid rgba(155,93,255,.3);   cursor: pointer; transition: all .3s; display: inline-block;}
.btn-outline:hover{color: var(--accent); border-color: var(--accent);}
.sec-top{display: flex; justify-content: space-between; align-items: flex-end;  margin-bottom: 3em;}
.sec-top .sec-title{margin-bottom: 0;}
.sec-top .sec-desc{text-align: right;}
.sec-label{font-family: 'Montserrat', sans-serif; font-size: .65em; letter-spacing: .28em; color: var(--accent); text-transform: uppercase; margin-bottom: 1em; display: flex; align-items: center; gap: .8em;}
.sec-title{font-weight: 900; font-size: clamp(1.7em, 4.2vw, 2.2em); line-height: 1.4; margin-bottom: 18px;}
.sec-title.en{font-family: 'Montserrat', sans-serif; line-height: 1.1;}
.sec-title em{color:var(--accent);}
.sec-subtitle{margin-bottom: .5em; font-size: 1.05em;}
.sec-desc{color: var(--muted); line-height: 1.8; font-size: .95em;}

@media (max-width: 1200px) {
  .sec-top{flex-direction: column; align-items: flex-start; gap: 10px;}
  .sec-desc{text-align: left;}
  .sec-top .sec-desc{text-align: left; width: 100%;}
}
@media (max-width: 900px) {
  section{padding: 4em var(--paddingLR);}
}

/* ABOUT */
.about{display: flex; gap: 6em; align-items: center;}
.about-visual{flex:1; position: relative; width: 100%; aspect-ratio: 16/9;}
.about-video{position: relative; width: 100%; height: 100%; background: var(--bg3); border-radius: var(--radius1); position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden;}
.about-cont{flex:1; position: relative; z-index: 1;}
.about-desc{font-size: .95em; color: var(--muted); margin-bottom: 2em;}
.about-vision{border-left: 2px solid var(--accent); padding: 1.2em 1.5em; background: var(--accent-glow); margin: 2em 0;}
.about-vision p{font-size: .95em; color: var(--muted);}

@media (max-width: 1200px) {
  .about{flex-direction: column-reverse; gap: 1.2em;} 
  .about-cont{width: 100%;}
}

/* ===== WORKS ===== */
/* Swiper wrapper */
.works-swiper {overflow: visible; }
.works-swiper .swiper-wrapper { align-items: stretch; }

/* Progress bar */
.works-progress{height: 2px; background: var(--border); margin-top: 2em; border-radius: 1px; overflow: hidden; }
.works-progress-bar {height: 100%; background: var(--accent); width: 25%; transition: width .4s ease;}

/* Card */
.work-card {aspect-ratio: 16/9; position: relative; overflow: hidden; border-radius: var(--radius1); border: 1px solid var(--border); display: block;}
.work-card img{width: 100%; height: 100%; object-fit: cover; filter: brightness(.5); transition: filter .4s, transform .4s;}
.work-card:hover img { filter: brightness(.7); transform: scale(1.04); }
.work-card-body {position: absolute; inset: 0; padding: 32px; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(to top, rgba(8,8,16,.95) 0%, transparent 55%);}
.work-tag {font-size: .6em; color: var(--accent); letter-spacing: .2em; margin-bottom: 6px;}
.work-title { font-weight: 700; font-size: 1.2em; color: var(--white); margin-bottom: 4px; }
.work-desc { font-size: .78em; color: rgba(255,255,255,.45); }
.work-arrow {position: absolute; top: 28px; left: 32px; width: 36px; height: 36px; border: 1px solid rgba(75,117,255,.4); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .9em; color: var(--accent); transition: background .2s;
}
.work-card:hover .work-arrow { background: var(--accent); color: #fff; border-color: var(--accent); }

@media (max-width: 900px) {
  .works-swiper { padding: 0 20px 0 !important; }
  .works-progress { margin: 16px 20px 0; }
  .work-tag{margin-bottom: 5px;}
  .work-title{margin-bottom: 4px; }
  .work-card-body{padding: 1.5em 1em;}
  .work-arrow{top:1.5em; left: 1em;}
}

/* ===== INFO ===== */
/*  Vision */
.vision-list{margin-bottom: 6em; }
.vision-row {display: grid; grid-template-columns: 60px 1fr 1fr; gap: 0 3em; padding: 2em 1em;
border-bottom: 1px solid var(--border); align-items: start; transition: background .3s;  cursor: default;}
.vision-row:hover{background: rgba(75,117,255,.04);}
.vision-row:first-child{border-top: 1px solid var(--border);}
.vision-num{font-family: 'Montserrat', sans-serif; font-size: .65em; font-weight: 700; color: var(--accent); letter-spacing: .1em;
padding-top: .2em;}
.vision-title{font-weight: 700; font-size: 1.1em; color: var(--text); line-height: 1.3;}
.vision-body{font-size: .88em; color: var(--muted); line-height: 1.8;}
@media (max-width:800px){
  .vision-row{grid-template-columns: 40px 1fr; gap: 0 1.2em;}
  .vision-body{grid-column: 2 / -1; margin-top: .5em;}
}

/* Partners */
.partners-strip {display: flex; gap: 20px;}
.partner-pill {display: flex; align-items: center; gap: 20px; padding: 1.5em 2.5em; border: 1px solid var(--border); border-radius: var(--radius1); transition: border-color .3s, background .3s; flex: 1;}
.partner-pill:hover{border-color: var(--accent); background: rgba(75,117,255,.06); }
.partner-pill-logo {width: 44px; height: 44px; background: var(--accent); border-radius: var(--radius1); display: flex; align-items: center; justify-content: center; font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: .78em; color: #fff; flex-shrink: 0;letter-spacing: -.01em;}
.partner-pill-info{display: flex; flex-direction: column; gap: 2px;}
.partner-pill-info strong{display: block; font-size: 1.05em; color: var(--text);}
.partner-pill-info span{font-size: .8em; color: var(--muted);}
@media (max-width:600px){
  .partners-strip { flex-direction: column; }
}

/* ===== BUSINESS ===== */
.business{background: var(--bg); padding: 8em var(--paddingLR); }

/* showcase layout */
.biz-showcase{display: grid; grid-template-columns: 1fr 1fr; gap: 0; align-items: start;  min-height: 600px;}

/* LEFT — sticky image panel */
.biz-image-panel {position: sticky; top: 100px; height: calc(100vh - 200px); max-height: 680px; border-radius: var(--radius1); overflow: hidden; margin-right: 4em;}
.biz-img-slide {position: absolute; inset: 0; opacity: 0; transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1); transform: scale(1.04);}
.biz-img-slide.active{opacity: 1; transform: scale(1);}
.biz-img-slide img {width: 100%; height: 100%; object-fit: cover; filter: brightness(.55);}

/* overlay info on image */
.biz-img-overlay {position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,8,16,.92) 0%, rgba(8,8,16,.2) 60%, transparent 100%); display: flex; flex-direction: column; justify-content: flex-end; padding: 2.5em;}
.biz-img-num {font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 5em; color: var(--accent); line-height: 1; opacity: .18; letter-spacing: -.04em; margin-bottom: .1em;}
.biz-img-title {font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.4em; color: #fff; line-height: 1.25; margin-bottom: .8em;}
.biz-img-tags { display: flex; flex-wrap: wrap; gap: .4em; }
.biz-img-tag {font-size: .68em; padding: .7em .85em .6em; background: rgba(75,117,255,.25); border: 1px solid rgba(75,117,255,.4); border-radius: 100px; color: rgba(255,255,255,.8);font-family: 'Montserrat', sans-serif; letter-spacing: .05em; line-height: 1;}
/* accent bar at bottom of image */
.biz-img-bar {position: absolute; bottom: 0; left: 0; right: 0; height:5px; background: var(--accent)}

/* RIGHT — list */
.biz-list-panel { padding-left: 1em; }
.biz-row {border-bottom: 1px solid var(--border); cursor: pointer; transition: background .2s;}
.biz-row:first-child { border-top: 1px solid var(--border); }
.biz-row-head {display: grid; grid-template-columns: 52px 1fr 20px; gap: 1.2em; align-items: center; padding: 1.4em 1em;}
.biz-row-num {font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: .72em; color: var(--muted); letter-spacing: .1em; transition: color .25s;}
.biz-row-name {font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: clamp(.85em, 1.4vw, 1.05em); letter-spacing: .03em; color: var(--text-mid); line-height: 1.25; transition: color .25s; font-size: 1.05em;}

.biz-row.active .biz-row-num { color: var(--accent); }
.biz-row.active .biz-row-name { color: var(--white); }
.biz-row.active { background: rgba(75,117,255,.05); }
.biz-row:hover:not(.active) { background: rgba(255,255,255,.02); }
.biz-row:hover:not(.active) .biz-row-name { color: var(--text); }

/* expand desc under active row */
.biz-row-body{max-height: 0; overflow: hidden; transition: max-height .45s cubic-bezier(.4,0,.2,1); padding: 0 .5em;}
.biz-row.active .biz-row-body{max-height: 160px;}
.biz-row-desc{font-size: .83em; color: var(--muted); line-height: 1.9; padding-bottom: 1.4em; margin-left: calc(52px + 2em);}

@media (max-width:1100px){
  .biz-image-panel { margin-right: 2em; }
}
@media (max-width:900px){
  .biz-showcase{grid-template-columns: 1fr; }
  .biz-image-panel{position: relative; top: auto; height: 300px; max-height: 300px; margin-right: 0; margin-bottom: 2em;}
  .biz-list-panel{padding-left: 0;}
  .biz-img-overlay{padding: 1.5em 1em;}
  .biz-row-head{grid-template-columns: 32px 1fr 20px; padding: 1em;}
  .biz-row-desc{margin-left: calc(32px + 2em);}
}
@media (max-width:600px){
  .biz-image-panel{height: 240px;}
  .biz-img-num{font-size: 3.5em;}
  .biz-img-title{font-size: 1.1em;}
}

/* ===== PROCESS ===== */
/* step grid */
.process-steps { position: relative; background: linear-gradient(90deg, var(--accent), #82d671, var(--accent)); background-size: 200% 100%; animation: gradientFlow 4s linear infinite; border-radius: 1em; padding: .5em;}
@keyframes gradientFlow {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}
.proc-cell-wrap{position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2em; overflow: hidden; background: var(--bg); padding: 3em 2em; border-radius: .8em; }
.process-line{position: absolute; top: calc(3em + 7px); left: calc(2em + 7px); right: calc(2em + 7px); height: 1px; background: var(--accent); opacity: .5;}
.proc-cell{position: relative; transition: background .4s; cursor: default; }
.proc-cell:last-child {border-right: none;}

/* dot indicator */
.proc-cell-dot {width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--accent); background: var(--bg2); margin-bottom: 2em; position: relative; z-index: 1;  transition: background .3s, box-shadow .3s;}
.proc-cell:hover .proc-cell-dot {background: var(--accent); box-shadow: 0 0 0 6px rgba(75,117,255,.15);}
.proc-cell:last-child .proc-cell-dot{background: var(--accent); box-shadow: 0 0 0 6px rgba(75,117,255,.15); animation: dotPulse 1.8s infinite;}
@keyframes dotPulse {
  0%,100% { box-shadow: 0 0 0 1px rgba(75,117,255,.4); }
  50%      { box-shadow: 0 0 0 8px rgba(75,117,255,.1); }
}

.proc-cell-num {font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: .65em; letter-spacing: .2em; color: var(--accent); margin-bottom: .7em; position: relative; z-index: 1;}
.proc-cell-title {font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.05em; letter-spacing: .04em; color: var(--white); margin-bottom: .9em; line-height: 1.3; position: relative; z-index: 1;}
.proc-cell-desc{font-size: .78em; color: var(--muted); line-height: 1.85; position: relative; z-index: 1;}

@media (max-width:900px){
  .proc-cell-wrap{ grid-template-columns: repeat(2, 1fr);  gap: 2em 1.5em;}
  .process-line{display: none;}
  .proc-cell-dot {margin-bottom: 15px;}
}
@media (max-width:600px){
  .process-steps{padding: .3em;}
  .proc-cell-wrap{ grid-template-columns: 1fr; }
  .proc-cell-dot {margin-bottom: 10px;}
}

/* ===== WHY ===== */
.why-top-sub {font-size: .95em; color: var(--muted); line-height: 1.9; max-width: 500px;}
.why-grid{display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto auto;}
.why-cell{padding: 2em; border: 1px solid var(--border); border-collapse: collapse; position: relative; overflow: hidden; transition: background .4s;}
.why-cell:hover{background: rgba(75,117,255,.04);}
.why-cell-icon{width: 48px; height: 48px; border: 1px solid var(--border); border-radius: var(--radius1); display: flex; align-items: center; justify-content: center;  margin-bottom: 1.8em; transition: background .3s, border-color .3s;}
.why-cell:hover .why-cell-icon { background: var(--accent); border-color: var(--accent); }
.why-cell-icon svg{width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.8; transition: stroke .3s; }
.why-cell:hover .why-cell-icon svg { stroke: #fff; }
.why-cell-title{font-weight: 700; font-size: 1.1em; color: var(--text); margin-bottom: .7em; line-height: 1.3;}
.why-cell-desc{font-size: .88em; color: var(--muted); line-height: 1.85; max-width: 380px;}

@media (max-width:900px){
  .why-grid { grid-template-columns: 1fr; }
  .why-cell{padding: 1.5em 1em;}
  .why-cell-icon{width: 35px; height: 35px; margin-bottom: 20px;}
  .why-cell-icon svg{width: 15px; height: 15px;}
}

 /* ===== CONTACT ===== */
#contact{background: var(--bg-soft);}
.contact-inner{display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start;}
.contact-big{font-size: clamp(1.7em, 4.2vw, 2.5em);}
.contact-email-row{display: flex; align-items: center; gap: 10px; font-family: 'Montserrat', sans-serif; font-size: .9em; font-weight: 600; color: var(--accent); margin-top: 20px;}
.contact-email-row svg{width: 15px; height: 15px; stroke: var(--accent); fill: none; stroke-width: 2; flex-shrink: 0;}

@media (max-width: 900px) {
  .contact-inner{grid-template-columns: 1fr; gap: 40px;}
}

/* Form */
.contact-form{display: flex; flex-direction: column; gap: 14px;}
.form-row{display: grid; grid-template-columns: 1fr 1fr; gap: 14px;}
.form-group{display: flex; flex-direction: column; gap: 7px;}
.form-group label{font-family: 'Montserrat', sans-serif; font-size: .7em; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mid);}
.form-group input, .form-group select, .form-group textarea{background: rgba(255,255,255,.1); border: 1px solid var(--border); border-radius: 3px; padding: 12px 15px;  font-size: .87em; color: var(--text); outline: none; transition: border-color .2s, box-shadow .2s;}
.form-group input::placeholder, .form-group textarea::placeholder{color: var(--text-mid); opacity: .6;}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{ border-color: var(--accent); box-shadow: 0 0 0 3px rgba(75,117,255,.1);}
.form-group select {appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center;}
.form-group option{background: var(--bg);}
.form-group textarea{resize: none; min-height: 126px; line-height: 1.7;}
.btn-submit{width: 100%; padding: 15px; background: var(--accent); color: #fff; border: none; border-radius: 3px; font-family: 'Montserrat', sans-serif; font-size: .9em; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; transition: opacity .2s, transform .2s; margin-top: 4px;}
.btn-submit:hover{background: var(--accent-dim);}

@media (max-width: 600px) {
  .form-row{grid-template-columns: 1fr;}
}

/* 개인정보 체크박스 */
.privacy-check{display: flex; align-items: center; gap: 8px; margin-top: 2px;}
.privacy-check input[type="checkbox"] {width: 16px; height: 16px; flex-shrink: 0; accent-color: var(--accent); padding: 0; border: none; box-shadow: none; }
.privacy-check input[type="checkbox"]:focus { box-shadow: none; border: none;}
.privacy-check label{font-size: .82em; color: var(--text-mid); letter-spacing: 0; text-transform: none; cursor: pointer; line-height: 1.6;}
.privacy-check label a{color: var(--accent); text-decoration: underline; text-underline-offset: 2px;}

/* ===== MODAL BASE ===== */
.modal-overlay {position: fixed; inset: 0; z-index: 9000;  background: rgba(0,0,0,.55); backdrop-filter: blur(2px); display: flex; align-items: center; justify-content: center;  opacity: 0; pointer-events: none; transition: opacity .25s;}
.modal-overlay.open{opacity: 1; pointer-events: all;}
.modal-box {background: var(--bg); border-radius: 8px; width: 90%; max-width: 520px; padding: 48px 40px; transform: translateY(16px); transition: transform .25s;
position: relative;}
.modal-overlay.open .modal-box { transform: none; }
.modal-close {position: absolute; top: 18px; right: 20px; background: none; border: none; font-size: 1.4em; color: var(--text-mid); line-height: 1; cursor: pointer;}
.modal-close:hover {color: var(--text);}
.modal-icon {width: 56px; height: 56px; background: var(--accent-dim); border-radius: 50%; display: flex; align-items: center; justify-content: center;  margin: 0 auto 20px;}
.modal-icon svg { width: 26px; height: 26px; }
.modal-title {font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.25em; text-align: center; color: var(--text); margin-bottom: 12px;}
.modal-body {font-size: .88em; color: var(--text-mid); line-height: 1.85;  text-align: center; margin-bottom: 28px;}
.modal-btn {display: block; width: 100%; padding: 14px; background: var(--accent); color: #fff; border: none; border-radius: 3px; font-family: 'Montserrat', sans-serif; font-size: .74em; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; transition: opacity .2s;}
.modal-btn:hover{background: var(--accent-dim);}

/* 개인정보처리방침 모달 본문 */
.privacy-modal-box{max-width: 640px; max-height: 80vh; overflow: hidden; display: flex; flex-direction: column;}
.privacy-modal-header{padding-bottom:20px; flex-shrink: 0;}
.privacy-modal-header h3 {font-weight: 800; font-size: 1.1em; color: var(--text);}
.privacy-modal-scroll {overflow-y: auto; font-size: .8em; color: var(--text-mid); line-height: 1.9; flex: 1;}
.privacy-modal-scroll h4 {font-weight: 600; font-size: 1em; color: var(--text); margin: 20px 0 8px;}
.privacy-modal-scroll h4:first-child {margin-top: 0;}
.privacy-date{opacity: .5; margin-top: 1em; font-size: .9em;}
.privacy-modal-footer{padding-top:20px; flex-shrink: 0;}

/* ===== FOOTER ===== */
footer{background: var(--bg3); padding: 56px var(--paddingLR) 40px;}
.footer-top {display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.08);margin-bottom: 32px; gap: 10px 20px; flex-wrap: wrap;}
.footer-logo{width: 130px; height: auto; margin-bottom:8px;}
.footer-logo img{width: 100%; height: 100%; object-fit:contain;}
.footer-tagline{font-family: 'Montserrat', sans-serif; font-size: .6em; font-weight: 500; letter-spacing: .1em; color: rgba(255,255,255,.2); text-transform: uppercase;}
.footer-it-btn{display: inline-flex; align-items: center; gap: 8px; padding: .8em 1.5em; border: 1.5px solid rgba(75,117,255,.5); border-radius: 3px; font-family: 'Montserrat', sans-serif; font-size: .75em; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: rgba(75,117,255,.9); text-decoration: none;
transition: background .25s, color .25s, border-color .25s;  margin-top: 4px;}
.footer-it-btn:hover{background: var(--accent); color: #fff; border-color: var(--accent);}
.footer-it-btn svg{width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2;}
.footer-bottom{display: flex; flex-wrap: wrap; gap: 6px 28px; align-items: flex-start;}
.footer-info-line{font-size: .72em; color: rgba(255,255,255,.25); line-height: 1.9;  font-weight: 300;}
.footer-info-line span{color: rgba(255,255,255,.4); margin-right: 4px;}
.footer-copy{width: 100%; margin-top: 20px; font-family: 'Montserrat', sans-serif; font-size: .6em; font-weight: 500; letter-spacing: .1em; color: rgba(255,255,255,.18); text-align:left;}

@media (max-width: 900px) {
  footer{flex-direction: column; gap: 14px; text-align: center; }
  .footer-logo{width: 100px;}
  .footer-it-btn{padding: .5em 1em;}
  .footer-bottom{gap: 4px 15px;}
}

/* ===== KEYFRAMES ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}

/* ===== top btn ===== */
#top-btn{position: fixed; bottom: 10px; right: 10px; z-index: 100; cursor: pointer; display: none;}
#top-btn img{width: 45px; height: auto;}

@media (max-width: 900px) {
    #top-btn img{width: 40px; height: auto;}
}
@media (max-width: 600px) {
    #top-btn img{width: 35px; height: auto;}
}