/* ============================================
   CHUNIL ROOF — Sample 3: Cinematic Dark
   ============================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#0b0b0b;
  --bg2:#101010;
  --bg3:#161616;
  --card:#1a1a1a;
  --amber:#E8A849;
  --amber-dim:#C48A30;
  --amber-glow:rgba(232,168,73,.12);
  --white:#F0EBE3;
  --gray:#999088;
  --muted:#5D5750;
  --line:rgba(240,235,227,.07);
  --line-h:rgba(232,168,73,.22);
  --sans:'Inter','Noto Sans KR',sans-serif;
  --serif:'Cormorant Garamond','Noto Sans KR',serif;
}

html{scroll-behavior:auto}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--white);
  line-height:1.75;
  overflow-x:hidden;
  word-break:keep-all;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--amber);text-decoration:none;transition:color .3s}
a:hover{color:var(--white)}

em{font-style:normal;color:var(--amber)}

.wrap{max-width:1140px;margin:0 auto;padding:0 28px}

/* ---- Buttons ---- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 40px;
  background:var(--amber);color:#111;border:none;border-radius:3px;
  font-family:var(--sans);font-size:.9rem;font-weight:600;
  cursor:pointer;transition:all .3s;text-decoration:none;
}
.btn-main:hover{background:var(--white);color:#111}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 40px;
  background:transparent;color:var(--white);
  border:1px solid rgba(240,235,227,.15);border-radius:3px;
  font-family:var(--sans);font-size:.9rem;font-weight:500;
  cursor:pointer;transition:all .3s;text-decoration:none;
}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}

.btn-sm{padding:10px 24px;font-size:.8rem}
.btn-block{width:100%}

/* ---- Nav ---- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 32px;
  transition:background .4s,border .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(11,11,11,.95);
  border-bottom-color:var(--line);
}

.nav-logo{
  display:flex;align-items:center;gap:10px;text-decoration:none;line-height:1.15;
}
.nav-logo-icon{flex-shrink:0}
.nav-logo-text{display:flex;flex-direction:column}
.nav-logo-kr{
  font-family:var(--serif);font-size:1.05rem;font-weight:700;color:var(--white);
}
.nav-logo-en{
  font-size:.55rem;font-weight:500;letter-spacing:3px;color:var(--muted);text-transform:uppercase;
}

.hamburger{
  display:none;flex-direction:column;gap:7px;
  background:none;border:none;cursor:pointer;padding:6px;
}
.hamburger span{width:22px;height:1.5px;background:var(--white);transition:.3s}

.nav-menu{
  display:flex;align-items:center;gap:28px;
}
.nav-menu a{
  font-size:.82rem;font-weight:500;color:var(--gray);transition:color .3s;
}
.nav-menu a:hover{color:var(--white)}
.nav-menu-phone{
  font-weight:600;color:var(--amber) !important;
}

/* ---- Hero ---- */
.hero{
  position:relative;
  height:100vh;height:100svh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  overflow:hidden;
}

.hero-video{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  transform:translateZ(0);
  will-change:transform;
}

.hero-dim{
  position:absolute;inset:0;
  background:rgba(11,11,11,.65);
  transform:translateZ(0);
}

.hero-inner{
  position:relative;z-index:2;
  max-width:680px;padding:0 24px;
  opacity:.85;
}

/* Logo Block */
.hero-logo-block{
  margin-bottom:32px;
}
.hero-logo-line{
  width:48px;height:1px;
  background:var(--amber);
  margin:0 auto 14px;
}
.hero-logo-block .hero-logo-line:last-child{
  margin:14px auto 0;
}
.hero-logo-label{
  font-size:.7rem;font-weight:600;
  letter-spacing:6px;
  color:var(--amber);
  text-transform:uppercase;
}
.hero-logo-title{
  font-family:var(--serif);
  font-size:clamp(2.8rem,6vw,4.2rem);
  font-weight:900;
  letter-spacing:8px;
  line-height:1.2;
  margin:6px 0;
}

.hero-tagline{
  font-family:var(--serif);
  font-size:clamp(1rem,2vw,1.3rem);
  font-weight:400;
  color:var(--white);
  margin-bottom:12px;
  letter-spacing:1px;
}

.hero-sub{
  font-size:.9rem;
  color:var(--gray);
  margin-bottom:36px;
  line-height:1.8;
}

.hero-btns{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;
}

/* Hero Bottom Stats */
.hero-bottom{
  position:absolute;bottom:0;left:0;right:0;z-index:2;
  display:flex;justify-content:center;gap:40px;
  padding:18px 24px;
  background:rgba(11,11,11,.92);
  border-top:1px solid var(--line);
}
.hero-stat{font-size:.85rem;color:var(--gray)}
.hero-stat strong{font-size:1.3rem;font-weight:700;color:var(--amber);margin-right:3px}

/* Scroll hint */
.hero-scroll-hint{
  position:absolute;bottom:80px;left:50%;transform:translateX(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.hero-scroll-hint span{font-size:.6rem;letter-spacing:3px;color:var(--muted)}
.scroll-bar{width:1px;height:32px;background:linear-gradient(180deg,var(--amber),transparent);animation:scrollPulse 2s ease-in-out infinite}
@keyframes scrollPulse{0%,100%{opacity:0;transform:scaleY(0)}50%{opacity:1;transform:scaleY(1)}}

/* ---- Architectural Sketch Background ---- */
.sec{
  padding:100px 0;
  position:relative;
}
#about::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  opacity:.20;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='300' fill='none' stroke='%23E8A849' stroke-width='.5'%3E%3Cpath d='M40 260 L200 80 L360 260'/%3E%3Cline x1='20' y1='260' x2='380' y2='260'/%3E%3Cline x1='200' y1='80' x2='200' y2='260'/%3E%3Cline x1='120' y1='170' x2='120' y2='260'/%3E%3Cline x1='280' y1='170' x2='280' y2='260'/%3E%3Crect x='150' y='200' width='40' height='60'/%3E%3Crect x='210' y='200' width='40' height='60'/%3E%3Crect x='100' y='190' width='25' height='25'/%3E%3Crect x='275' y='190' width='25' height='25'/%3E%3Cpath d='M50 290 L50 250 M70 290 L70 250' stroke-dasharray='3 3'/%3E%3Cline x1='30' y1='280' x2='370' y2='280' stroke-dasharray='5 5'/%3E%3C/svg%3E");
  background-size:400px 300px;
  background-repeat:repeat;
}
.sec-alt{background:var(--bg2)}

.sec-label{
  font-size:.65rem;font-weight:600;letter-spacing:4px;
  text-transform:uppercase;color:var(--amber);margin-bottom:14px;
}

.sec-heading{
  font-family:var(--serif);
  font-size:clamp(1.7rem,3vw,2.5rem);
  font-weight:700;line-height:1.3;margin-bottom:12px;
}
.sec-heading.center{text-align:center}

.sec-desc{color:var(--gray);font-size:.92rem;margin-bottom:48px}

h2{
  font-family:var(--serif);
  font-size:clamp(1.7rem,3vw,2.5rem);
  font-weight:700;line-height:1.3;margin-bottom:12px;
}

/* ---- About ---- */
.about-layout{
  display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start;
}

.about-left h2{position:sticky;top:80px}

.about-lead{font-size:1.05rem;font-weight:500;color:var(--white);margin-bottom:16px}

.about-right p{color:var(--gray);font-size:.92rem;margin-bottom:36px}

.about-points{display:flex;flex-direction:column;gap:16px}

.about-point{
  display:flex;gap:18px;
  padding:18px;border:1px solid var(--line);border-radius:3px;
  transition:border-color .3s;
}
.about-point:hover{border-color:var(--line-h)}

.about-point span{
  font-size:.72rem;font-weight:600;color:var(--amber);flex-shrink:0;padding-top:2px;
}
.about-point strong{display:block;font-size:.9rem;margin-bottom:2px}
.about-point div{font-size:.8rem;color:var(--gray);line-height:1.5}

/* ---- Services — Alternating Rows ---- */
.svc-row{
  display:grid;grid-template-columns:1fr 1fr;
  min-height:420px;
}
.svc-reverse{direction:rtl}
.svc-reverse>*{direction:ltr}

.svc-img{overflow:hidden}
.svc-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.svc-row:hover .svc-img img{transform:scale(1.04)}

.svc-text{
  display:flex;flex-direction:column;justify-content:center;
  padding:48px 56px;
  background:var(--bg3);
}
.svc-num{font-size:.7rem;font-weight:600;color:var(--amber);letter-spacing:2px}
.svc-text h3{font-size:1.4rem;font-weight:700;margin:10px 0 14px}
.svc-text h3 small{display:block;font-size:.6rem;font-weight:400;letter-spacing:2px;color:var(--muted);margin-top:3px}
.svc-text p{font-size:.88rem;color:var(--gray);margin-bottom:18px;line-height:1.7}
.svc-text ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px 20px}
.svc-text li{font-size:.78rem;color:var(--gray);padding-left:12px;position:relative}
.svc-text li::before{content:'';position:absolute;left:0;top:8px;width:5px;height:1px;background:var(--amber)}

/* ---- Portfolio ---- */
.portfolio-top{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:36px;gap:16px;flex-wrap:wrap;
}
.portfolio-top h2{margin-bottom:0}

.pf-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  grid-auto-rows:260px;
  gap:12px;
}

.pf-large{grid-column:span 2}

.pf-item{
  position:relative;overflow:hidden;border-radius:3px;cursor:pointer;
}
.pf-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.pf-item:hover img{transform:scale(1.05)}

.pf-caption{
  position:absolute;bottom:0;left:0;right:0;
  padding:16px 20px;
  background:linear-gradient(0deg,rgba(11,11,11,.85),transparent);
  font-size:.88rem;font-weight:600;
  transform:translateY(100%);transition:transform .4s;
}
.pf-item:hover .pf-caption{transform:translateY(0)}
.pf-caption span{display:block;font-size:.6rem;font-weight:500;letter-spacing:2px;color:var(--amber);margin-bottom:2px}

/* ---- Process ---- */
.proc-row{
  display:flex;align-items:flex-start;gap:0;
  margin-top:8px;
}

.proc-card{
  flex:1;
  padding:32px 24px;
  border:1px solid var(--line);border-radius:3px;
  text-align:center;transition:border-color .3s;
}
.proc-card:hover{border-color:var(--line-h)}

.proc-icon{
  font-family:var(--serif);font-size:2rem;font-weight:700;color:var(--amber);
  margin-bottom:14px;line-height:1;
}
.proc-card h3{font-size:.95rem;font-weight:600;margin-bottom:8px}
.proc-card p{font-size:.8rem;color:var(--gray);line-height:1.6}

.proc-arrow{
  display:flex;align-items:center;
  padding:0 12px;
  font-size:1.2rem;color:var(--muted);
  flex-shrink:0;
  padding-top:40px;
}

/* ---- Contact ---- */
.contact-layout{
  display:grid;grid-template-columns:1fr 1.4fr;gap:48px;align-items:start;
}

.cs-block{
  display:flex;flex-direction:column;
  padding:16px 20px;
  border:1px solid var(--line);border-radius:3px;
  margin-bottom:12px;transition:border-color .3s;
  color:var(--white);text-decoration:none;
}
.cs-block:hover{border-color:var(--line-h)}
.cs-phone{background:var(--amber-glow);border-color:var(--line-h)}
.cs-block small{font-size:.65rem;font-weight:500;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.cs-block strong,.cs-block span,.cs-block a{font-size:.92rem;font-weight:500;color:var(--white)}

.cform{
  padding:28px;background:var(--card);border:1px solid var(--line);border-radius:3px;
}
.cform-2col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cform-field{margin-bottom:16px}
.cform-field label{display:block;font-size:.78rem;font-weight:500;color:var(--gray);margin-bottom:5px}
.cform-field input,.cform-field select,.cform-field textarea{
  width:100%;padding:11px 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:3px;
  color:var(--white);font-family:var(--sans);font-size:.88rem;
  outline:none;transition:border-color .3s;
}
.cform-field input:focus,.cform-field select:focus,.cform-field textarea:focus{border-color:var(--amber)}
.cform-field input::placeholder,.cform-field textarea::placeholder{color:var(--muted)}
.cform-field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235D5750' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.cform-field select option{background:var(--bg)}
.cform-field textarea{resize:vertical;min-height:90px}

/* ---- Float Button ---- */
.float-btn{
  position:fixed;bottom:24px;right:24px;z-index:900;
  width:54px;height:54px;
  display:flex;align-items:center;justify-content:center;
  background:var(--amber);color:#111;
  border-radius:50%;
  box-shadow:0 6px 24px rgba(232,168,73,.3);
  opacity:0;transform:translateY(12px);transition:all .3s;
}
.float-btn.on{opacity:1;transform:translateY(0)}
.float-btn:hover{background:var(--white);color:#111;transform:translateY(-2px)}

/* ---- Modal ---- */
.modal{position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.8);opacity:0;visibility:hidden;transition:.3s}
.modal.on{opacity:1;visibility:visible}
.modal-box{background:var(--card);border:1px solid var(--line);padding:44px;border-radius:4px;text-align:center;max-width:380px}
.modal-box h3{font-family:var(--sans);font-size:1.15rem;margin-bottom:8px}
.modal-box p{color:var(--gray);margin-bottom:24px;font-size:.88rem}

/* ---- Footer ---- */
.ft{border-top:1px solid var(--line);background:var(--bg2);padding:48px 0 20px}
.ft-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:20px}
.ft-logo{font-family:var(--serif);font-size:1.1rem;font-weight:700;margin-bottom:6px}
.ft-logo span{font-family:var(--sans);font-weight:400;font-size:.65rem;letter-spacing:2px;color:var(--muted);margin-left:8px}
.ft-slogan{font-size:.82rem;color:var(--muted)}
.ft-links{display:flex;gap:56px}
.ft-links h4{font-size:.65rem;font-weight:500;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.ft-links a{display:block;font-size:.82rem;color:var(--gray);margin-bottom:5px}
.ft-links a:hover{color:var(--amber)}
.ft-bottom{font-size:.72rem;color:var(--muted)}

/* ---- Animations ---- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s,transform .6s}
.reveal.on{opacity:1;transform:translateY(0)}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .about-layout{grid-template-columns:1fr;gap:40px}
  .about-left h2{position:static}
  .svc-row,.svc-reverse{grid-template-columns:1fr}
  .svc-text{padding:36px 28px}
  .contact-layout{grid-template-columns:1fr;gap:32px}
  .proc-arrow{display:none}
  .proc-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
}

@media(max-width:768px){
  .nav{height:54px;padding:0 20px}
  .nav-logo-kr{font-size:.92rem}
  .nav-logo-en{font-size:.5rem;letter-spacing:2px}

  .hamburger{display:flex}

  .nav-menu{
    display:none;
    position:fixed;top:54px;left:0;right:0;bottom:0;
    background:#0b0b0b;
    flex-direction:column;align-items:stretch;
    padding:20px 24px;gap:0;z-index:9999;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{
    display:block;padding:17px 0;font-size:1.02rem;color:var(--white);
    border-bottom:1px solid var(--line);
  }
  .nav-menu-phone{
    display:block;text-align:center;padding:16px;margin-top:16px;
    background:var(--amber);color:#111 !important;border-radius:3px;
    font-size:1rem;font-weight:700;border:none;
  }

  /* Hero */
  .hero-logo-title{font-size:2.6rem;letter-spacing:4px}
  .hero-tagline{font-size:.95rem}
  .hero-sub{font-size:.85rem}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn-main,.hero-btns .btn-ghost{text-align:center}
  .hero-bottom{gap:20px;padding:14px 16px;flex-wrap:wrap;justify-content:center}
  .hero-stat{font-size:.78rem}
  .hero-stat strong{font-size:1.1rem}
  .hero-scroll-hint{display:none}

  /* Sections */
  .sec{padding:72px 0}
  .wrap{padding:0 20px}

  h2,.sec-heading{font-size:1.5rem}

  /* Services */
  .svc-row,.svc-reverse{grid-template-columns:1fr}
  .svc-row{min-height:auto}
  .svc-img{height:220px}
  .svc-text{padding:28px 24px}
  .svc-text h3{font-size:1.2rem}
  .svc-text p{font-size:.85rem}

  /* Portfolio */
  .pf-grid{grid-template-columns:1fr 1fr;grid-auto-rows:180px}
  .pf-large{grid-column:span 1}
  .pf-caption{transform:translateY(0)}
  .portfolio-top{flex-direction:column;align-items:flex-start}

  /* Process */
  .proc-row{grid-template-columns:1fr 1fr;gap:10px}
  .proc-card{padding:24px 16px}
  .proc-icon{font-size:1.5rem}
  .proc-card h3{font-size:.85rem}
  .proc-card p{font-size:.75rem}

  /* Contact */
  .cform{padding:20px}
  .cform-2col{grid-template-columns:1fr}
  .cform-field input,.cform-field select,.cform-field textarea{font-size:16px}

  /* Footer */
  .ft-top{flex-direction:column;gap:24px}
  .ft-links{gap:36px}

  /* Float */
  .float-btn{width:48px;height:48px;bottom:20px;right:20px}
}

@media(max-width:480px){
  .hero-logo-title{font-size:2.1rem;letter-spacing:3px}
  .hero-logo-label{font-size:.6rem;letter-spacing:4px}
  .hero-tagline{font-size:.88rem}

  h2,.sec-heading{font-size:1.35rem}

  .pf-grid{grid-template-columns:1fr;grid-auto-rows:200px}

  .proc-row{grid-template-columns:1fr}

  .ft-links{flex-direction:column;gap:20px}
}