:root{
  --g1:#0f1f16;--g2:#1a3021;--g3:#2d5a3d;--g4:#3d7a52;
  --gold:#c8a060;--gold2:#e8d5a0;
  --cream:#f5f0e6;--cream2:#ede8dc;--white:#fdfcf8;
  --text:#2a2a2a;--muted:#6a6a6a;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans TC',sans-serif;background:var(--white);color:var(--text);overflow-x:hidden;}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:18px 5%;background:rgba(15,31,22,.97);backdrop-filter:blur(16px);border-bottom:1px solid rgba(200,160,96,.18);}
.logo-wrap{display:flex;flex-direction:column;gap:2px;}
.logo-main{font-family:'Noto Serif TC',serif;font-size:15px;font-weight:700;color:var(--gold2);letter-spacing:3px;}
.logo-sub{font-family:'Cormorant Garamond',serif;font-size:10px;letter-spacing:6px;color:rgba(200,160,96,.55);}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none;}
.nav-links a{font-size:12.5px;letter-spacing:2px;color:rgba(245,240,230,.75);text-decoration:none;font-weight:300;transition:color .25s;}
.nav-links a:hover,.nav-links a.active{color:var(--gold);}
.nav-btn{border:1px solid var(--gold);color:var(--gold)!important;padding:8px 22px;font-size:11.5px!important;letter-spacing:2px;transition:all .25s!important;}
.nav-btn:hover{background:var(--gold)!important;color:var(--g2)!important;}

/* PAGE HERO */
.page-hero{padding:120px 7% 52px;background:var(--g2);position:relative;overflow:hidden;}
.page-hero::before{content:'DOORS';position:absolute;right:-20px;bottom:-30px;font-family:'Cormorant Garamond',serif;font-size:180px;font-weight:600;color:rgba(200,160,96,.05);pointer-events:none;}
.breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:20px;}
.breadcrumb span{font-size:11px;letter-spacing:2px;color:rgba(200,160,96,.5);font-family:'Cormorant Garamond',serif;}
.breadcrumb .sep{color:rgba(200,160,96,.25);}
.breadcrumb .current{color:var(--gold);}
.eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:18px;}
.eyebrow-line{width:32px;height:1px;background:var(--gold);}
.eyebrow span{font-family:'Cormorant Garamond',serif;font-size:11px;letter-spacing:6px;color:var(--gold);}
.page-title{font-family:'Noto Serif TC',serif;font-size:clamp(26px,3.5vw,44px);font-weight:700;color:#f0ece2;letter-spacing:4px;margin-bottom:14px;}
.page-desc{font-size:13.5px;line-height:2;color:rgba(240,235,220,.6);font-weight:300;max-width:580px;}
.notice-bar{background:rgba(200,160,96,.1);border:1px solid rgba(200,160,96,.25);border-left:4px solid var(--gold);padding:14px 20px;display:flex;align-items:flex-start;gap:12px;margin-top:24px;max-width:700px;}
.notice-icon{font-size:16px;flex-shrink:0;margin-top:1px;}
.notice-text{font-size:12.5px;line-height:1.9;color:var(--gold2);font-weight:300;}

/* MAIN */
.doors-page{padding:0 7% 80px;background:var(--white);}

/* STEP LABEL */
.step-block{padding-top:48px;}
.step-label{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.step-num{width:28px;height:28px;background:var(--g2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Cormorant Garamond',serif;font-size:13px;color:var(--gold);font-weight:600;flex-shrink:0;}
.step-title{font-family:'Noto Serif TC',serif;font-size:15px;font-weight:600;color:var(--g2);letter-spacing:2px;}
.step-hint{font-size:11.5px;color:var(--muted);font-weight:300;letter-spacing:.5px;margin-left:4px;}

/* STEP 1: DOOR TYPE TABS */
.type-tabs{display:flex;gap:10px;flex-wrap:wrap;}
.type-tab{
  padding:12px 22px;
  border:1.5px solid rgba(26,48,33,.15);
  font-size:12.5px;letter-spacing:2px;
  color:var(--muted);font-weight:300;
  cursor:pointer;transition:all .25s;
  font-family:'Noto Sans TC',sans-serif;
  background:var(--white);
  position:relative;
}
.type-tab:hover{border-color:var(--g3);color:var(--g2);background:var(--cream);}
.type-tab.active{background:var(--g2);color:var(--gold2);border-color:var(--g2);font-weight:500;}
.type-tab-count{font-size:9px;letter-spacing:1px;color:rgba(200,160,96,.6);display:block;margin-top:2px;font-family:'Cormorant Garamond',serif;}
.type-tab.active .type-tab-count{color:rgba(200,160,96,.7);}

/* STEP 2: COLOR GRID */
.color-section{
  margin-top:4px;
  border:1.5px solid rgba(26,48,33,.12);
  overflow:hidden;
  animation:fadeIn .3s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.color-section-header{
  background:var(--cream2);
  padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid rgba(26,48,33,.08);
}
.color-section-title{font-family:'Noto Serif TC',serif;font-size:13px;font-weight:600;color:var(--g2);letter-spacing:2px;}
.color-section-meta{font-size:11px;color:var(--muted);font-family:'Cormorant Garamond',serif;letter-spacing:2px;}

.color-grid{
  display:grid;grid-template-columns:repeat(7,1fr);
  gap:8px;padding:20px;
  background:var(--white);
}
.color-card{
  cursor:pointer;
  border:2px solid transparent;
  transition:all .2s;
  position:relative;
}
.color-card:hover{border-color:var(--g3);transform:scale(1.04);z-index:1;}
.color-card.selected{border-color:var(--g2);}
.color-card.selected::after{
  content:'✓';position:absolute;top:4px;right:4px;
  width:18px;height:18px;background:var(--g2);color:var(--gold2);
  font-size:9px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;font-family:sans-serif;
}
.color-img{
  aspect-ratio:1;
  display:flex;align-items:center;justify-content:center;
  font-size:9px;letter-spacing:1px;color:rgba(255,255,255,.5);
  font-family:'Noto Sans TC',sans-serif;font-weight:300;
  position:relative;overflow:hidden;
}
/* Simulated material textures */
.color-img::before{content:'';position:absolute;inset:0;}
.tex-plain::before{background:inherit;}
.tex-wood::before{background:repeating-linear-gradient(108deg,rgba(0,0,0,.06) 0,rgba(0,0,0,.06) 1px,transparent 1px,transparent 12px);}
.tex-gloss::before{background:linear-gradient(135deg,rgba(255,255,255,.3) 0,rgba(255,255,255,.05) 50%,rgba(255,255,255,.15) 100%);}
.tex-matte::before{background:repeating-linear-gradient(45deg,rgba(0,0,0,.03) 0,rgba(0,0,0,.03) 1px,transparent 1px,transparent 8px);}
.tex-grain::before{background:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0,rgba(255,255,255,.04) 1px,transparent 1px,transparent 6px);}

.color-info{padding:6px 7px;background:rgba(26,48,33,.03);}
.color-name{font-size:8.5px;letter-spacing:.5px;color:var(--text);display:block;line-height:1.3;}
.color-finish{font-size:7.5px;color:var(--muted);font-family:'Cormorant Garamond',serif;}

/* STEP 3: STYLE GRID */
.style-section{
  margin-top:4px;
  border:1.5px solid var(--g2);
  overflow:hidden;
  animation:fadeIn .3s ease;
}
.style-section-header{
  background:var(--g2);
  padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between;
}
.style-section-title{font-family:'Noto Serif TC',serif;font-size:13px;font-weight:600;color:var(--gold2);letter-spacing:2px;}
.style-section-meta{font-size:11px;color:rgba(200,160,96,.55);font-family:'Cormorant Garamond',serif;letter-spacing:2px;}

.style-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:12px;padding:20px;
  background:var(--white);
}
.style-card{
  border:1.5px solid rgba(26,48,33,.1);
  overflow:hidden;cursor:pointer;
  transition:all .3s;position:relative;
}
.style-card:hover{border-color:var(--g3);box-shadow:0 6px 20px rgba(26,48,33,.1);transform:translateY(-3px);}
.style-card.selected{border-color:var(--g2);border-width:2px;}
.style-card.selected::after{content:'✓';position:absolute;top:8px;right:8px;width:22px;height:22px;background:var(--g2);color:var(--gold2);font-size:11px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-family:sans-serif;z-index:1;}
.style-img{
  height:140px;
  display:flex;align-items:center;justify-content:center;
  font-size:10px;letter-spacing:2px;color:rgba(200,160,96,.4);
  font-family:'Noto Sans TC',sans-serif;font-weight:300;
  position:relative;overflow:hidden;
}
.style-body{padding:12px 14px;}
.style-name{font-family:'Noto Serif TC',serif;font-size:13.5px;font-weight:600;color:var(--g2);letter-spacing:1px;margin-bottom:4px;}
.style-desc{font-size:11px;line-height:1.8;color:var(--muted);font-weight:300;}

/* ADD TO INQUIRY */
.add-inquiry-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;
  background:var(--cream2);
  border-top:1px solid rgba(26,48,33,.08);
  flex-wrap:wrap;gap:12px;
}
.add-inquiry-info{font-size:12.5px;color:var(--g2);font-weight:300;}
.add-inquiry-info strong{font-weight:600;font-family:'Noto Serif TC',serif;}
.btn-add{
  background:var(--g2);color:var(--cream);
  padding:10px 28px;font-size:12px;letter-spacing:2px;
  border:none;cursor:pointer;font-family:'Noto Sans TC',sans-serif;
  transition:all .25s;font-weight:500;
}
.btn-add:hover{background:var(--g3);}
.btn-add:disabled{background:rgba(26,48,33,.2);color:rgba(26,48,33,.4);cursor:not-allowed;}

/* INQUIRY LIST */
.inquiry-section{
  margin-top:52px;
  border:1.5px solid rgba(26,48,33,.12);
  overflow:hidden;
}
.inquiry-section-header{
  background:var(--cream2);
  padding:16px 22px;
  display:flex;align-items:center;justify-content:space-between;
}
.inquiry-section-title{font-family:'Noto Serif TC',serif;font-size:14px;font-weight:600;color:var(--g2);letter-spacing:2px;}
.inquiry-empty{padding:40px;text-align:center;color:var(--muted);font-size:13px;font-weight:300;}
.inquiry-items-list{padding:16px 20px;}
.inquiry-row{
  display:flex;align-items:center;gap:16px;
  padding:12px 0;
  border-bottom:1px solid rgba(26,48,33,.06);
}
.inquiry-row:last-child{border-bottom:none;}
.inquiry-row-color{width:32px;height:32px;border-radius:2px;flex-shrink:0;border:1px solid rgba(0,0,0,.08);}
.inquiry-row-info{flex:1;}
.inquiry-row-type{font-size:10px;letter-spacing:2px;color:var(--gold);font-family:'Cormorant Garamond',serif;}
.inquiry-row-name{font-size:13px;color:var(--g2);font-weight:500;font-family:'Noto Serif TC',serif;letter-spacing:1px;}
.inquiry-row-style{font-size:11px;color:var(--muted);font-weight:300;margin-top:2px;}
.inquiry-row-remove{font-size:11px;color:rgba(26,48,33,.3);cursor:pointer;transition:color .2s;flex-shrink:0;}
.inquiry-row-remove:hover{color:var(--g2);}

/* INQUIRY FORM */
.inquiry-form{
  padding:24px 22px;
  background:var(--cream);
  border-top:1px solid rgba(26,48,33,.08);
}
.form-title{font-family:'Noto Serif TC',serif;font-size:14px;font-weight:600;color:var(--g2);letter-spacing:2px;margin-bottom:6px;}
.form-subtitle{font-size:12px;color:var(--muted);font-weight:300;margin-bottom:20px;line-height:1.8;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group.full{grid-column:1/-1;}
.form-label{font-size:11px;letter-spacing:2px;color:var(--g2);font-weight:500;font-family:'Cormorant Garamond',serif;}
.form-input{
  padding:10px 14px;
  border:1px solid rgba(26,48,33,.2);
  background:var(--white);
  font-size:13px;color:var(--text);
  font-family:'Noto Sans TC',sans-serif;font-weight:300;
  outline:none;transition:border-color .25s;
}
.form-input:focus{border-color:var(--g2);}
.form-checkboxes{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px;}
.form-checkbox{
  display:flex;align-items:center;gap:8px;
  cursor:pointer;
}
.form-checkbox input{
  width:16px;height:16px;
  accent-color:var(--g2);cursor:pointer;
}
.form-checkbox span{font-size:12.5px;color:var(--text);font-weight:300;}
.form-note{
  font-size:11.5px;color:var(--muted);font-weight:300;
  line-height:1.8;padding:12px 14px;
  background:rgba(26,48,33,.04);
  border-left:3px solid rgba(26,48,33,.15);
  margin-bottom:16px;
}
.form-note strong{color:var(--g2);font-weight:500;}
.btn-submit{
  background:var(--g2);color:var(--cream);
  padding:14px 44px;font-size:12.5px;letter-spacing:3px;
  border:none;cursor:pointer;
  font-family:'Noto Sans TC',sans-serif;font-weight:500;
  transition:all .3s;
}
.btn-submit:hover{background:var(--g3);transform:translateY(-2px);}

/* FLOATING INQUIRY BADGE */
.float-badge{
  position:fixed;bottom:24px;right:24px;z-index:100;
  background:var(--g2);border:1px solid rgba(200,160,96,.3);
  padding:12px 20px;
  display:flex;align-items:center;gap:10px;
  cursor:pointer;box-shadow:0 8px 30px rgba(15,31,22,.3);
  transition:all .3s;opacity:0;transform:translateY(20px);
  pointer-events:none;
}
.float-badge.visible{opacity:1;transform:translateY(0);pointer-events:all;}
.float-badge:hover{background:var(--g3);}
.float-badge span{font-size:12px;letter-spacing:2px;color:rgba(240,235,220,.85);font-weight:300;}
.float-count{
  background:var(--gold);color:var(--g2);
  width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:600;font-family:'Cormorant Garamond',serif;
}

/* Footer */
footer{background:var(--g1);padding:40px 7% 28px;border-top:1px solid rgba(200,160,96,.1);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:10.5px;letter-spacing:2px;color:rgba(240,235,220,.2);font-family:'Cormorant Garamond',serif;}

@media(max-width:768px){
  .nav-links{display:none;}
  .type-tabs{gap:8px;}
  .color-grid{grid-template-columns:repeat(4,1fr);}
  .style-grid{grid-template-columns:1fr 1fr;}
  .form-grid{grid-template-columns:1fr;}
  .float-badge{right:12px;bottom:12px;}
}