/* ===== MIK Design System — Protection Starts Here ===== */
:root{
  --ink:#0B0B0B; --ink-2:#2C2C2C; --mute:#7A7671; --line:#E6E3DD;
  --paper:#FFFFFF; --ivory:#F7F5F0; --ivory-2:#EFEBE3; --gold:#B8923C;
  --serif:'Noto Serif KR', serif;
  --sans:'Pretendard Variable', Pretendard, -apple-system, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;font-weight:350;word-break:keep-all;overflow-wrap:break-word}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif)}
section{position:relative}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;justify-content:space-between;height:70px}
.hlogo img{height:19px;width:auto;display:block}
.hright{display:flex;align-items:center;gap:20px}
nav.desk{display:flex;gap:34px;align-items:center}
nav.desk a{font-size:13px;letter-spacing:.06em;color:var(--ink-2);transition:color .2s}
nav.desk a:hover{color:var(--ink)}
.nav-drop{position:relative;display:inline-flex}
.nav-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);padding-top:22px;display:flex;flex-direction:column;min-width:158px;opacity:0;visibility:hidden;transition:opacity .18s;z-index:60}
.nav-drop:hover .nav-menu{opacity:1;visibility:visible}
.nav-menu a{background:var(--paper);border:1px solid var(--line);border-bottom:none;padding:12px 18px;font-size:13px;color:var(--ink-2);white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.nav-menu a:first-child{border-radius:6px 6px 0 0}
.nav-menu a:last-child{border-bottom:1px solid var(--line);border-radius:0 0 6px 6px}
.nav-menu a:hover{background:var(--ivory);color:var(--ink)}
.hcta{font-size:12.5px;letter-spacing:.08em;border:1px solid var(--ink);padding:9px 16px;border-radius:2px;transition:all .2s;white-space:nowrap}
.hcta:hover{background:var(--ink);color:#fff}
.burger{display:none;background:none;border:none;cursor:pointer;padding:4px}
.mdrawer{display:none}

/* Buttons */
.btn{font-size:14px;letter-spacing:.04em;padding:15px 30px;border-radius:2px;transition:all .2s;border:1px solid var(--ink);display:inline-block;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-block{display:block;width:100%;text-align:center}

/* Section base */
.sec{padding:96px 0}
.sec.alt{background:var(--ivory)}
.sec.ink{background:var(--ink);color:#fff}
.lead-eyebrow{font-size:12px;letter-spacing:.36em;color:var(--mute);text-transform:uppercase;margin-bottom:18px}
.ink .lead-eyebrow{color:#8f8a82}
.lead-title{font-family:var(--serif);font-weight:700;font-size:clamp(27px,4vw,42px);line-height:1.22;letter-spacing:-.01em}
.lead-sub{font-size:16px;color:var(--ink-2);margin-top:18px;line-height:1.8;max-width:58ch}
.ink .lead-sub{color:#b8b3ab}
.divider{width:100%;height:1px;background:var(--line)}

/* Page hero (inner pages) */
.phero{padding:88px 0 62px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.phero.ink{background:var(--ink);color:#fff;border-bottom:none}
.phero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% center;z-index:0;filter:contrast(1.06) saturate(1.03)}
.phero-ov{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(8,8,8,.9) 0%,rgba(8,8,8,.66) 46%,rgba(8,8,8,.32) 100%)}
.phero .wrap{position:relative;z-index:2}
.phero.haimg{padding:104px 0 92px}
.phero-eyebrow{font-size:12px;letter-spacing:.4em;color:var(--mute);text-transform:uppercase;margin-bottom:22px}
.phero.ink .phero-eyebrow{color:var(--gold)}
.phero h1{font-family:var(--serif);font-weight:900;font-size:clamp(32px,5.4vw,58px);line-height:1.08;letter-spacing:-.01em}
.phero p{font-family:var(--serif);font-weight:500;font-size:clamp(15px,2vw,19px);color:var(--ink-2);margin-top:20px;line-height:1.6}
.phero.ink p{color:#c9c5be}

/* Generic content */
.narrow{max-width:760px}
.body-copy p{font-size:16px;color:var(--ink-2);line-height:1.9;margin-bottom:18px}
.body-copy strong{color:var(--ink);font-weight:600}
.body-copy em{font-style:normal;color:var(--gold)}
.ink .body-copy p{color:#c9c5be}
.ink .body-copy strong{color:#fff}

/* Fact card */
.factcard{border:1px solid var(--line);border-radius:4px;padding:22px 24px;margin-top:30px;background:var(--paper)}
.ink .factcard{border-color:rgba(255,255,255,.16);background:transparent}
.factcard .lbl{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.factcard .bd{font-size:14.5px;color:var(--ink-2);line-height:1.7}
.ink .factcard .bd{color:#c9c5be}
.factcard .src{font-size:11.5px;color:var(--mute);margin-top:10px}

/* Element (SiO2) grid */
.el{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
.el-formula{font-family:var(--serif);font-weight:900;font-size:clamp(80px,13vw,170px);line-height:.9;letter-spacing:-.03em}
.el-formula sub{font-size:.42em;vertical-align:sub;font-weight:700}
.el-cap{font-size:13px;letter-spacing:.3em;color:var(--mute);text-transform:uppercase;margin-top:10px}
.el-visual{position:relative;border-radius:4px;overflow:hidden;aspect-ratio:3/4;box-shadow:0 24px 60px rgba(11,11,11,.16)}
.el-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.el-visual .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.12) 0%,rgba(0,0,0,0) 38%,rgba(0,0,0,.74) 100%)}
.el-label{position:absolute;left:28px;right:28px;bottom:26px;z-index:2}
.el-label .f{font-family:var(--serif);font-weight:900;font-size:clamp(48px,7vw,78px);line-height:.9;letter-spacing:-.02em;color:#fff}
.el-label .f sub{font-size:.42em;vertical-align:sub;font-weight:700}
.el-label .c{font-size:12px;letter-spacing:.22em;color:rgba(255,255,255,.72);text-transform:uppercase;margin-top:12px}

/* Compare 2col */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:44px;border:1px solid var(--line)}
.compare .col{background:var(--paper);padding:32px 30px}
.compare .col.hi{background:var(--ink);color:#fff}
.compare .col .era{font-size:12px;letter-spacing:.14em;color:var(--mute);text-transform:uppercase}
.compare .col.hi .era{color:var(--gold)}
.compare .col .ct{font-family:var(--serif);font-weight:700;font-size:22px;margin:6px 0 20px}
.compare ul{list-style:none}
.compare li{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.compare .col.hi li{border-color:rgba(255,255,255,.14)}
.compare li span{color:var(--mute)}
.compare li strong{font-weight:600;text-align:right}

/* Feature grid */
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;border-top:1px solid var(--line)}
.ink .feat{border-color:rgba(255,255,255,.16)}
.fcell{padding:30px 24px 6px;border-right:1px solid var(--line)}
.ink .fcell{border-color:rgba(255,255,255,.16)}
.fcell:last-child{border-right:none}
.fcell h4{font-family:var(--serif);font-weight:600;font-size:18px;margin-bottom:10px}
.fcell p{font-size:13.5px;color:var(--mute);line-height:1.7}

/* Spec table */
.spec{width:100%;border-collapse:collapse;margin-top:30px;font-size:14.5px}
.spec th,.spec td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:32%;color:var(--mute);font-weight:600;background:var(--ivory)}
.spec td{color:var(--ink)}

/* VLT chips */
.vlt{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.vchip{border:1px solid var(--line);border-radius:4px;padding:16px 10px;text-align:center}
.vchip b{display:block;font-family:var(--serif);font-size:22px;font-weight:700}
.vchip span{font-size:12px;color:var(--mute)}

/* Accordion */
.acc{max-width:780px}
.acc-item{border-bottom:1px solid var(--line)}
.acc-h{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 2px;cursor:pointer;font-weight:500;font-size:15.5px}
.acc-h .ic{font-family:var(--serif);color:var(--mute);transition:transform .2s}
.acc-item.open .acc-h .ic{transform:rotate(45deg)}
.acc-b{max-height:0;overflow:hidden;transition:max-height .28s ease;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.acc-item.open .acc-b{max-height:320px;padding-bottom:20px}

/* Product cards */
.prod{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:44px;border:1px solid var(--line)}
.pcard{background:var(--paper);padding:44px 38px 38px;transition:background .25s}
.pcard:hover{background:var(--ivory)}
.pcard .no{font-family:var(--serif);font-size:14px;color:var(--mute);letter-spacing:.1em}
.pcard h3{font-family:var(--serif);font-weight:700;font-size:24px;margin:14px 0 12px;line-height:1.3}
.pcard p{font-size:15px;color:var(--ink-2);line-height:1.8}
.pcard .go{margin-top:24px;font-size:13.5px;letter-spacing:.06em;display:inline-flex;gap:8px;border-bottom:1px solid var(--ink);padding-bottom:2px}

/* Shop cards */
.shoplist{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.shopcard{border:1px solid var(--line);border-radius:6px;padding:26px 26px 24px;background:var(--paper)}
.shopcard .badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;padding:5px 11px;border-radius:99px;margin-bottom:12px}
.badge-open{background:#e9f7ef;color:#1a9e5f}
.badge-soon{background:var(--ivory-2);color:#9a8850}
.shopcard h3{font-family:var(--serif);font-weight:700;font-size:20px}
.shopcard .addr{font-size:14px;color:var(--mute);margin-top:6px;line-height:1.6}
.shopcard .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.shopcard .tags span{font-size:12px;color:var(--ink-2);background:var(--ivory);border:1px solid var(--line);border-radius:99px;padding:4px 10px}

/* CTA banner */
.ctabox{text-align:center}
.ctabox h2{font-family:var(--serif);font-weight:700;font-size:clamp(24px,3.4vw,36px);line-height:1.3}
.ctabox p{font-size:15.5px;color:var(--ink-2);margin:16px 0 30px;line-height:1.8}
.ink .ctabox p{color:#b8b3ab}

/* ===== Forms ===== */
.field{margin-bottom:18px}
.field:last-child{margin-bottom:0}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:8px;letter-spacing:.01em}
.field .req{color:#c0392b;margin-left:3px}
.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:3px;font-size:14.5px;font-family:inherit;color:var(--ink);background:var(--paper)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.field input:disabled,.field select:disabled{background:var(--ivory);color:var(--mute)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.err{color:#c0392b;font-size:12.5px;margin-top:6px;display:none}
.check{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);cursor:pointer}
.check input{width:18px;height:18px;accent-color:var(--ink);flex:0 0 auto}
.radio-inline{display:flex;gap:10px;flex-wrap:wrap}
.radio-inline label{flex:1;min-width:96px;border:1px solid var(--line);border-radius:3px;padding:12px;text-align:center;font-size:14px;cursor:pointer}
.radio-inline label:has(input:checked){border-color:var(--ink);background:var(--ivory);font-weight:600}
.radio-inline input{display:none}
.checks{display:flex;flex-direction:column;gap:11px}

/* Order steps */
.step{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:26px 26px 28px;margin-bottom:18px}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.step-num{width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex:0 0 auto;font-family:var(--serif)}
.step-title{font-family:var(--serif);font-size:18px;font-weight:600}
.step-title small{font-family:var(--sans);font-weight:400;color:var(--mute);font-size:12.5px;margin-left:8px}
.opt-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.opt-card{border:1px solid var(--line);border-radius:5px;padding:18px 14px;cursor:pointer;text-align:center;transition:.15s}
.opt-card:hover{border-color:var(--mute)}
.opt-card:has(input:checked){border-color:var(--ink);background:var(--ivory)}
.opt-card input{position:absolute;opacity:0}
.opt-card .oc-t{font-weight:600;font-size:15px}
.opt-card .oc-d{font-size:12px;color:var(--mute);margin-top:5px;line-height:1.5}

/* Order summary */
.order-grid{display:grid;grid-template-columns:1fr 340px;gap:30px;align-items:start}
.order-grid>aside{position:sticky;top:88px;align-self:start}
.pilot-note{background:#fbf7ee;border:1px solid #ecdcb8;border-radius:6px;padding:16px 20px;font-size:13.5px;color:#8a6d2f;line-height:1.7;margin-bottom:24px}
.pilot-note b{color:#6d5320}
.summary{background:var(--ink);color:#fff;border-radius:8px;padding:24px 24px 26px}
.summary h3{font-family:var(--serif);font-size:15px;letter-spacing:.06em;color:var(--gold);margin-bottom:16px}
.sum-row{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:13.5px}
.sum-row .k{color:#9a958d;flex:0 0 auto}
.sum-row .v{text-align:right;font-weight:600}
.sum-row .v.empty{color:#6a655d;font-weight:400}
.sum-cta{width:100%;margin-top:22px;padding:15px;border:none;border-radius:4px;background:var(--gold);color:#241a05;font-size:15.5px;font-weight:700;cursor:pointer;font-family:inherit}
.sum-cta:hover{filter:brightness(1.05)}
.sum-foot{font-size:11.5px;color:#7a756d;text-align:center;margin-top:12px;line-height:1.6}

/* Contact / info */
.two-col{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:start}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:28px}
.info-dark{background:var(--ink);color:#fff;border-radius:8px;padding:26px}
.info-dark h3{font-family:var(--serif);font-size:15px;letter-spacing:.06em;color:var(--gold);margin-bottom:16px}
.info-dark .row{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.info-dark .row:last-child{border-bottom:none}
.info-dark .k{font-size:12px;color:#9a958d;margin-bottom:4px}
.info-dark .v{font-size:14.5px;font-weight:600}

/* Warranty lookup */
.lookup{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.lcard{border:1px solid var(--line);border-radius:8px;padding:26px;background:var(--paper)}
.lcard .lt{font-family:var(--serif);font-weight:600;font-size:17px;margin-bottom:6px}
.lcard .ld{font-size:13px;color:var(--mute);margin-bottom:18px;line-height:1.6}
.igroup{display:flex;gap:10px;flex-wrap:wrap}
.igroup .input{flex:1;min-width:0;padding:13px 14px;border:1px solid var(--line);border-radius:3px;font-size:14.5px;font-family:inherit}

/* Confirmation overlay */
.confirm{position:fixed;inset:0;background:rgba(11,11,11,.72);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.confirm.show{display:flex}
.confirm-card{background:#fff;border-radius:10px;max-width:460px;width:100%;padding:40px 34px;text-align:center}
.confirm-card h2{font-family:var(--serif);font-size:22px;font-weight:700;margin-bottom:10px}
.confirm-card p{font-size:14px;color:var(--ink-2);line-height:1.75}
.confirm-card .btn{margin-top:24px}
.confirm-check{width:60px;height:60px;border-radius:50%;background:#eafaf0;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}

/* Footer */
footer{background:var(--ink);color:#cfcbc4;padding:70px 0 40px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.flogo img{height:18px;margin-bottom:20px}
.fdesc{font-size:13px;color:#8f8a82;line-height:1.85;max-width:34ch;word-break:keep-all}
footer h6{font-size:11px;letter-spacing:.2em;color:#fff;text-transform:uppercase;margin-bottom:16px}
footer ul{list-style:none}
footer li{margin:9px 0}
footer li a{font-size:13.5px;color:#b8b3ab;transition:color .2s}
footer li a:hover{color:#fff}
.fbottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.12);margin-top:52px;padding-top:26px;font-size:12px;color:#7a756d;flex-wrap:wrap;gap:12px}

/* ===== Mobile ===== */
@media(max-width:860px){
  nav.desk,.hcta{display:none}
  .burger{display:block}
  .mdrawer.open{display:block;position:fixed;inset:70px 0 0;background:#fff;z-index:40;padding:20px 28px;overflow:auto}
  .mdrawer a{display:block;font-family:var(--serif);font-size:22px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--ink)}
  .mdrawer a.sub{font-size:16px;padding:11px 0 11px 16px;color:var(--ink-2)}
  .sec{padding:66px 0}
  .el{grid-template-columns:1fr;gap:30px}
  .compare,.prod{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr 1fr}
  .fcell{border-bottom:1px solid var(--line)}
  .fcell:nth-child(2n){border-right:none}
  .ink .fcell{border-color:rgba(255,255,255,.16)}
  .vlt{grid-template-columns:repeat(2,1fr)}
  .shoplist{grid-template-columns:1fr}
  .order-grid{grid-template-columns:1fr}
  .order-grid>aside{position:static}
  .two-col{grid-template-columns:1fr}
  .lookup{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .opt-cards{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr;gap:34px}
  .phero{padding:60px 0 46px}
}
@media(max-width:460px){
  .wrap{padding:0 20px}
  .fgrid{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr}
  .fcell{border-right:none}
}