/* ===== SENSE INTERIOR — Luxury One-Page ===== */
:root{
  --charcoal:#1A1A1A;
  --charcoal-2:#212121;
  --charcoal-3:#2a2a2a;
  --ink:#111;
  --white:#ffffff;
  --paper:#f7f5f1;
  --paper-2:#efece5;
  --gold:#D4AF37;
  --gold-soft:#e3c766;
  --gold-deep:#a88423;
  --muted:#9a9690;
  --line:rgba(212,175,55,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 30px 70px -30px rgba(0,0,0,.5);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans KR',system-ui,sans-serif;
  background:var(--charcoal);
  color:var(--charcoal);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.7;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.serif{font-family:'Noto Serif KR',serif}
.disp{font-family:'Cormorant Garamond','Noto Serif KR',serif}

/* ---- helpers ---- */
.wrap{width:min(1280px,92vw);margin-inline:auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:.7em;
  font-size:.72rem;letter-spacing:.42em;text-transform:uppercase;
  color:var(--gold);font-weight:500;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.eyebrow.center::after{content:"";width:34px;height:1px;background:var(--gold)}
.eyebrow.center{justify-content:center}
.section-title{
  font-family:'Noto Serif KR',serif;font-weight:300;
  font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.18;letter-spacing:-.01em;
  margin:.5em 0 .3em;
}
.section-title b{font-weight:600;color:var(--gold)}
.lead{color:var(--muted);font-weight:300;max-width:46ch}

/* fade-in-up */
[data-reveal]{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.12s}
[data-reveal][data-delay="2"]{transition-delay:.24s}
[data-reveal][data-delay="3"]{transition-delay:.36s}
[data-reveal][data-delay="4"]{transition-delay:.48s}
@media(prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}}

/* ===== HEADER ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;
  padding:26px clamp(20px,4vw,54px);
  transition:background .5s var(--ease),padding .5s var(--ease),box-shadow .5s var(--ease);
}
.nav.scrolled{
  background:rgba(18,18,18,.86);backdrop-filter:blur(14px);
  padding-top:16px;padding-bottom:16px;
  box-shadow:0 1px 0 rgba(212,175,55,.18);
}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:34px;width:auto;transition:height .4s var(--ease)}
.nav.scrolled .brand img{height:29px}
.nav-links{display:flex;align-items:center;gap:38px;list-style:none}
.nav-links a{
  position:relative;color:#f3efe7;font-size:.92rem;font-weight:400;letter-spacing:.04em;
  padding:6px 0;transition:color .35s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;
  background:var(--gold);transition:width .4s var(--ease);
}
.nav-links a:hover{color:var(--gold)}
.nav-links a:hover::after{width:100%}
.nav-links a.admin{
  border:1px solid rgba(212,175,55,.5);border-radius:2px;
  padding:8px 20px;color:var(--gold);letter-spacing:.12em;font-size:.78rem;
}
.nav-links a.admin::after{display:none}
.nav-links a.admin:hover{background:var(--gold);color:var(--charcoal)}
.burger{display:none;flex-direction:column;gap:6px;background:none;border:0;cursor:pointer;padding:6px;z-index:120}
.burger span{width:26px;height:2px;background:var(--gold);transition:.4s var(--ease);transform-origin:center}
.burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ===== HERO ===== */
.hero{position:relative;height:100svh;min-height:620px;overflow:hidden;background:#000}
.hero-slide{
  position:absolute;inset:0;opacity:0;transform:scale(1.08);
  background-size:cover;background-position:center;
  transition:opacity 1.6s var(--ease),transform 7s linear;
}
.hero-slide.active{opacity:1;transform:scale(1)}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,8,8,.5) 0%,rgba(8,8,8,.12) 34%,rgba(8,8,8,.74) 100%),
             linear-gradient(98deg,rgba(6,6,6,.82) 0%,rgba(6,6,6,.55) 32%,rgba(6,6,6,.12) 58%,rgba(6,6,6,0) 74%);}
.hero-inner{position:relative;z-index:5;height:100%;display:flex;flex-direction:column;justify-content:center;
  width:min(1280px,92vw);margin-inline:auto;color:#fff}
.hero-eyebrow{color:var(--gold);letter-spacing:.5em;font-size:.8rem;text-transform:uppercase;font-weight:500;text-shadow:0 1px 14px rgba(0,0,0,.55)}
.hero h1{
  font-family:'Noto Serif KR',serif;font-weight:300;
  font-size:clamp(2.3rem,6.2vw,5.2rem);line-height:1.16;letter-spacing:-.015em;
  margin:.32em 0 .5em;max-width:16ch;text-shadow:0 2px 34px rgba(0,0,0,.5),0 1px 5px rgba(0,0,0,.42);
}
.hero h1 b{font-weight:600}
.hero h1 .gold{color:var(--gold);font-weight:500}
.hero h1 span{display:inline-block}
.hero p.sub{font-weight:300;font-size:clamp(1rem,1.6vw,1.25rem);color:#e7e2d8;max-width:40ch;text-shadow:0 1px 16px rgba(0,0,0,.6)}
.hero-cta{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
/* entrance — only when JS adds .animate; base state stays visible */
@media(prefers-reduced-motion:no-preference){
  .hero.animate .hero-eyebrow{opacity:0;animation:fadeUp 1s var(--ease) .3s forwards}
  .hero.animate h1 span{opacity:0;animation:fadeUp 1.1s var(--ease) forwards}
  .hero.animate p.sub{opacity:0;animation:fadeUp 1s var(--ease) 1.05s forwards}
  .hero.animate .hero-cta{opacity:0;animation:fadeUp 1s var(--ease) 1.25s forwards}
}
@keyframes fadeUp{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
.btn{
  display:inline-flex;align-items:center;gap:12px;cursor:pointer;border:0;
  font-family:inherit;font-size:.9rem;letter-spacing:.08em;padding:16px 34px;border-radius:2px;
  transition:.4s var(--ease);
}
.btn-gold{background:var(--gold);color:var(--charcoal);font-weight:600}
.btn-gold:hover{background:var(--gold-soft);transform:translateY(-3px);box-shadow:0 16px 30px -12px rgba(212,175,55,.6)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn i{transition:transform .4s var(--ease)}
.btn:hover i{transform:translateX(5px)}
/* hero controls */
.hero-dots{position:absolute;bottom:42px;left:50%;transform:translateX(-50%);z-index:6;display:flex;gap:14px}
.hero-dots button{width:34px;height:3px;border:0;background:rgba(255,255,255,.32);cursor:pointer;transition:.4s}
.hero-dots button.on{background:var(--gold);width:54px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:6;background:rgba(0,0,0,.25);
  border:1px solid rgba(255,255,255,.25);color:#fff;width:54px;height:54px;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.4s;backdrop-filter:blur(4px)}
.hero-arrow:hover{background:var(--gold);color:var(--charcoal);border-color:var(--gold)}
.hero-arrow.prev{left:clamp(12px,3vw,40px)}
.hero-arrow.next{right:clamp(12px,3vw,40px)}
.scroll-hint{position:absolute;bottom:36px;right:clamp(20px,5vw,60px);z-index:6;color:#cfc9bd;
  font-size:.7rem;letter-spacing:.3em;writing-mode:vertical-rl;display:flex;align-items:center;gap:14px}
.scroll-hint::after{content:"";width:1px;height:54px;background:linear-gradient(var(--gold),transparent);animation:scrollline 2s var(--ease) infinite}
@keyframes scrollline{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ===== generic dark section ===== */
.section{padding:clamp(80px,11vw,150px) 0;position:relative}
.bg-dark{background:var(--charcoal);color:var(--paper)}
.bg-paper{background:var(--paper);color:var(--charcoal)}
.bg-charcoal2{background:#161616;color:var(--paper)}
.sec-head{max-width:640px;margin-bottom:clamp(40px,6vw,72px)}
.bg-dark .section-title,.bg-charcoal2 .section-title{color:var(--paper)}
.bg-paper .lead{color:#6a665f}

/* ===== PORTFOLIO ===== */
.pf-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.pf-filters{display:flex;gap:10px;flex-wrap:wrap}
.pf-filters button{
  background:none;border:1px solid rgba(247,245,241,.18);color:#cfc9bd;font-family:inherit;
  padding:9px 20px;border-radius:40px;cursor:pointer;font-size:.82rem;letter-spacing:.04em;transition:.35s var(--ease)}
.pf-filters button.on,.pf-filters button:hover{background:var(--gold);border-color:var(--gold);color:var(--charcoal)}
.pf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.pf-more{text-align:center;margin-top:50px}
.pf-card{position:relative;overflow:hidden;cursor:pointer;background:#000;aspect-ratio:4/3}
.pf-card.tall{aspect-ratio:3/4}
.pf-card img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter 1.1s var(--ease)}
.pf-card::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(10,10,10,.85) 100%);opacity:.8;transition:opacity .6s}
.pf-card:hover img{transform:scale(1.09)}
.pf-card:hover::after{opacity:1}
.pf-meta{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:26px}
.pf-meta .area{color:var(--gold);font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;font-weight:500}
.pf-meta h3{color:#fff;font-family:'Noto Serif KR',serif;font-weight:400;font-size:1.35rem;margin-top:6px}
.pf-meta .tag{color:#cfc9bd;font-size:.82rem;margin-top:4px}
.pf-corner{position:absolute;top:18px;left:18px;z-index:3;width:34px;height:34px;
  border-top:1px solid var(--gold);border-left:1px solid var(--gold);opacity:0;transition:.55s var(--ease) .1s}
.pf-card:hover .pf-corner{opacity:1;top:18px;left:18px}

/* ===== BEFORE / AFTER ===== */
.ba-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(34px,5vw,72px);align-items:center}
.ba-stage{position:relative;aspect-ratio:16/10;overflow:hidden;user-select:none;box-shadow:var(--shadow);background:#000;cursor:ew-resize}
.ba-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba-after{clip-path:inset(0 0 0 50%)}
.ba-tag{position:absolute;bottom:18px;z-index:4;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  padding:7px 16px;background:rgba(0,0,0,.5);color:#fff;backdrop-filter:blur(3px)}
.ba-tag.before{left:18px}
.ba-tag.after{right:18px;background:var(--gold);color:var(--charcoal);font-weight:600}
.ba-handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--gold);z-index:5;transform:translateX(-1px)}
.ba-grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;border-radius:50%;
  background:var(--gold);color:var(--charcoal);display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(0,0,0,.45);cursor:ew-resize}
.ba-grip i+i{margin-left:2px}
.ba-copy h2{margin-bottom:.4em}
.ba-list{list-style:none;margin-top:30px;display:flex;flex-direction:column;gap:18px}
.ba-list li{display:flex;gap:16px;align-items:flex-start}
.ba-list i{color:var(--gold);margin-top:5px}
.ba-list b{display:block;font-weight:600;margin-bottom:2px}
.ba-list span{color:#9a968f;font-size:.92rem}

/* ===== PROCESS ===== */
.proc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:60px;position:relative}
.proc-line{position:absolute;top:34px;left:8%;right:8%;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.proc-step{position:relative;padding:0 22px;text-align:center}
.proc-num{width:68px;height:68px;margin:0 auto 26px;border-radius:50%;border:1px solid var(--line);
  background:var(--charcoal);display:flex;align-items:center;justify-content:center;
  font-family:'Cormorant Garamond',serif;font-size:1.7rem;color:var(--gold);position:relative;z-index:2;transition:.5s var(--ease)}
.proc-step:hover .proc-num{background:var(--gold);color:var(--charcoal);transform:translateY(-6px);box-shadow:0 14px 30px -10px rgba(212,175,55,.55)}
.proc-step .icon{font-size:1.4rem;color:var(--gold);margin-bottom:14px}
.proc-step h3{font-family:'Noto Serif KR',serif;font-weight:400;font-size:1.25rem;color:var(--paper);margin-bottom:10px}
.proc-step p{color:#8d8980;font-size:.9rem;font-weight:300}
.proc-step .ko{display:block;font-size:.72rem;letter-spacing:.2em;color:var(--gold);margin-bottom:6px;text-transform:uppercase}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(40px,6vw,90px)}
.contact-info .section-title{margin-bottom:.5em}
.ci-list{list-style:none;margin-top:40px;display:flex;flex-direction:column;gap:26px}
.ci-list li{display:flex;gap:18px;align-items:flex-start}
.ci-ic{flex:none;width:46px;height:46px;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--gold)}
.ci-list .k{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:3px}
.ci-list .v{color:#3a3733;font-weight:400}
.bg-paper .ci-list .v{color:#2a2722}
.form{background:#fff;padding:clamp(28px,4vw,46px);box-shadow:0 30px 60px -34px rgba(0,0,0,.25);border-top:3px solid var(--gold)}
.field{margin-bottom:22px}
.field label{display:block;font-size:.78rem;letter-spacing:.06em;color:#6a665f;margin-bottom:9px;font-weight:500}
.field label .req{color:var(--gold)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.input,select,textarea{
  width:100%;font-family:inherit;font-size:.95rem;color:var(--ink);
  border:1px solid #e3e0d9;background:#fafaf8;padding:14px 16px;border-radius:2px;transition:.3s;
}
.input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(212,175,55,.12)}
textarea{resize:vertical;min-height:110px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{position:relative;cursor:pointer}
.chip input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chip span{display:block;padding:10px 18px;border:1px solid #e3e0d9;border-radius:40px;font-size:.85rem;color:#6a665f;transition:.3s}
.chip input:checked+span{background:var(--charcoal);color:var(--gold);border-color:var(--charcoal)}
.form .btn-gold{width:100%;justify-content:center;margin-top:8px}
.form-note{font-size:.78rem;color:#a09c94;margin-top:14px;text-align:center}

/* ===== FOOTER ===== */
.footer{background:#0e0e0e;color:#cfc9bd;padding:clamp(56px,8vw,90px) 0 34px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;padding-bottom:50px;border-bottom:1px solid rgba(212,175,55,.16)}
.foot-brand img{height:36px;margin-bottom:22px}
.foot-brand p{color:#8d8980;font-weight:300;max-width:32ch;font-size:.92rem}
.foot-col h4{color:var(--gold);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:20px;font-weight:500}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.foot-col a,.foot-col li{color:#a8a49c;font-size:.92rem;font-weight:300;transition:.3s}
.foot-col a:hover{color:var(--gold)}
.foot-info{display:flex;flex-direction:column;gap:8px}
.foot-info b{color:#e7e2d8;font-weight:500}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:28px;flex-wrap:wrap}
.foot-bottom small{color:#777268;font-size:.8rem;letter-spacing:.02em}
.foot-social{display:flex;gap:14px}
.foot-social a{width:40px;height:40px;border:1px solid rgba(212,175,55,.25);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#a8a49c;transition:.35s}
.foot-social a:hover{background:var(--gold);color:var(--charcoal);border-color:var(--gold);transform:translateY(-3px)}

/* ===== ADMIN MODAL ===== */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(8,8,8,.82);backdrop-filter:blur(8px);opacity:0;transition:.4s}
.modal.open .modal-bg{opacity:1}
.modal-card{position:relative;z-index:2;width:min(420px,100%);background:linear-gradient(180deg,#1f1f1f,#171717);
  border:1px solid rgba(212,175,55,.22);padding:46px 40px;box-shadow:var(--shadow);
  transform:translateY(24px) scale(.97);opacity:0;transition:.5s var(--ease)}
.modal.open .modal-card{transform:none;opacity:1}
.modal-card .lock{width:60px;height:60px;margin:0 auto 22px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:1.3rem}
.modal-card h3{text-align:center;font-family:'Noto Serif KR',serif;font-weight:400;color:var(--paper);font-size:1.5rem}
.modal-card .sub{text-align:center;color:#8d8980;font-size:.85rem;margin:8px 0 30px;font-weight:300}
.modal .field label{color:#b6b2aa}
.modal .input{background:#101010;border-color:#333;color:#f3efe7}
.modal .input:focus{border-color:var(--gold);background:#141414;box-shadow:0 0 0 3px rgba(212,175,55,.14)}
.modal .btn-gold{width:100%;justify-content:center;margin-top:6px}
.modal-foot{display:flex;justify-content:space-between;align-items:center;margin-top:22px;font-size:.82rem}
.modal-foot label{display:flex;align-items:center;gap:8px;color:#9a968f;cursor:pointer}
.modal-foot a{color:var(--gold)}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:0;color:#8d8980;font-size:1.4rem;cursor:pointer;transition:.3s;z-index:3}
.modal-close:hover{color:var(--gold);transform:rotate(90deg)}

/* ===== PORTFOLIO LIGHTBOX ===== */
.lightbox{position:fixed;inset:0;z-index:300;display:none}
.lightbox.open{display:block}
.lb-bg{position:absolute;inset:0;background:rgba(6,6,6,.93);backdrop-filter:blur(7px)}
.lb-stage{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:90vw;height:90vh;display:flex;align-items:center;justify-content:center;z-index:2}
.lb-img{max-width:100%;max-height:100%;object-fit:contain;border-radius:2px;
  box-shadow:0 40px 90px -30px #000;transition:opacity .35s var(--ease)}
.lb-close{position:absolute;top:-6px;right:-6px;width:46px;height:46px;border:0;border-radius:50%;
  background:rgba(255,255,255,.08);color:#fff;font-size:1.35rem;cursor:pointer;z-index:5;transition:.3s}
.lb-close:hover{background:var(--gold);color:var(--charcoal);transform:rotate(90deg)}
.lb-arrow{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border:0;border-radius:50%;
  background:rgba(255,255,255,.08);color:#fff;font-size:1.15rem;cursor:pointer;z-index:5;transition:.3s}
.lb-arrow:hover{background:var(--gold);color:var(--charcoal)}
.lb-prev{left:4px}
.lb-next{right:4px}
.lb-counter{position:absolute;top:2px;left:50%;transform:translateX(-50%);
  color:#bdb7a8;font-size:.78rem;letter-spacing:.18em;z-index:5}
.lb-caption{position:absolute;left:0;right:0;bottom:0;text-align:center;
  color:#e8e3d8;font-size:.92rem;z-index:5;text-shadow:0 1px 8px #000;padding:0 60px .5em}
.lb-caption .lb-room{color:var(--gold);font-weight:500}
@media(max-width:760px){
  .lb-stage{width:96vw;height:92vh}
  .lb-arrow{width:42px;height:42px}
  .lb-close{top:0;right:0}
}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .pf-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid,.ba-wrap{grid-template-columns:1fr}
  .proc-grid{grid-template-columns:repeat(2,1fr);gap:50px 0}
  .proc-line{display:none}
  .foot-top{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:760px){
  .nav-links{
    position:fixed;inset:0;flex-direction:column;justify-content:center;gap:30px;
    background:rgba(15,15,15,.97);backdrop-filter:blur(10px);
    transform:translateX(100%);transition:transform .5s var(--ease);
  }
  .nav-links.open{transform:none}
  .nav-links a{font-size:1.3rem}
  .nav-links a.admin{padding:12px 32px}
  .burger{display:flex}
  .pf-grid{grid-template-columns:1fr}
  .pf-card,.pf-card.tall{aspect-ratio:4/3}
  .row2{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr;gap:34px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .hero-arrow{display:none}
  .scroll-hint{display:none}
}