:root {
            --primary: #e60012;
            --black: #111827; 
            --bg-gray: #f4f6f9; 
            --text-sub: #64748b;
            --radius: 16px;
            
            --glass-blur: blur(20px);
            --shadow-glass: 0 10px 40px 0 rgba(0, 0, 0, 0.08);
            --shadow-soft: 0 5px 20px rgba(0, 0, 0, 0.04);
            
            --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        
        body { 
            font-family: 'Pretendard', sans-serif; 
            color: var(--black); 
            background: #fff; 
            overflow-x: hidden; line-height: 1.6; letter-spacing: -0.5px; 
        }

        .inner { width: 100%; max-width: 1360px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 2; }
        section { padding: 140px 0; position: relative; }
        
        .bg-gray-sec { background: var(--bg-gray); }
        .bg-white-sec { background:#fff;}

        .title-group { display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 40px; }
        .title-group.c { align-items: center; text-align: center; margin-bottom: 40px; }
        .sec-label-wrap { display: flex; align-items: center; gap: 8px; margin-bottom:5px; }
        .sec-label-wrap img { width: 16px; height: 16px; margin-top:-2px; }
        .sec-label {  font-size: 16px;  color: #999; text-transform: uppercase; letter-spacing: 2px; font-weight:500;}
        .sec-title { font-size: clamp(2.2rem, 3vw, 3rem); font-weight: 700; line-height: 1.25; letter-spacing: -1px; color: var(--black); margin-bottom: 10px; }
        
        .title-group.light .sec-title { color: #fff; }
/*         .title-group.light .sec-label-wrap img { filter: brightness(0) invert(1); } */


        .btn { 
            display: inline-flex; align-items: center; gap: 10px;
            padding: 4px 0;  border-radius: 0; 
            transition: var(--transition); cursor: pointer; text-decoration: none; font-size: 1.05rem; 
            border: none; border-bottom: 2px solid currentColor; background: transparent; color: currentColor;
        }
        .btn i { transition: 0.3s ease; }
        .btn:hover { color: var(--primary); transform: translateX(5px); }
        .btn:hover i { transform: translateX(5px); }



/* ==========================================
           3. HERO
        ========================================== */
        .hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 80px 0 0 0; background: #0f172a url('/britestone/img/vi2.png') center/cover fixed; }
        .hero::before { content: ''; position: absolute; inset: 0; background: rgba(15, 23, 42, 0.6); }
        
        .hero-top-flex { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
        .hero-text h1 { font-size: 4em; line-height: 1.1; color: #fff; margin-bottom: 25px; letter-spacing: 1px; }
        .hero-text p { font-size: 1.2rem; font-weight: 300; color: rgba(255,255,255,0.6); line-height: 1.6; word-break: keep-all; max-width: 600px; }

        .hero-search { flex: 0 0 450px; }
        .hero-search h3 { color: #fff; font-size: 1.4rem;  font-weight: 500; }
        .search-box-single { 
            display: flex; align-items: center; width: 100%; 
            background: transparent; 
            border-bottom: 2px solid rgba(255,255,255,0.4); 
            padding: 10px 5px; 
            transition: 0.3s;
        }
        .search-box-single:focus-within { border-bottom-color: #fff; } 
        .search-box-single input { flex: 1; border: none; font-size: 1.1rem; outline: none; background: transparent; color: #fff; }
        .search-box-single input::placeholder { color: rgba(255,255,255,0.8); font-weight: 300; }
        

        .search-box-single button { 
            width: 40px; height: 40px; background: transparent; border: none; 
            color: #fff; font-size: 1.4rem; cursor: pointer; transition: 0.3s; 
            display: flex; align-items: center; justify-content: flex-end; 
        }
        .search-box-single button:hover { transform: scale(1.1); }


        .hero-stats-flex { display: flex; width: 100%; background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(8px); border-radius: var(--radius); overflow: hidden; margin-top: 80px; position: relative; z-index: 5; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
        .stat-item { flex: 1; padding: 60px 30px; border-right: 1px solid rgba(255,255,255,0.1); text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
        .stat-item:last-child { border-right: none; }
        

        .stat-item .num-wrap { display: flex; align-items: baseline; justify-content: center; gap: 4px; margin-bottom: 5px; position: relative; }
        

        .stat-item .num { font-size: 3.8rem; font-weight: 800; color: #fff; line-height: 1; letter-spacing: -2px; }

        .stat-item .unit { 
            font-size: 1.6rem; 
            font-weight: 500; 
            color: rgba(255, 255, 255, 0.7); 
            margin-left: 2px;
        }

        .stat-icon { 
            height: 21px; 
            object-fit: contain;
            margin-left: 4px; 
            align-self: flex-start; 
            margin-top: 10px; 
            transition: 0.3s ease;
            filter: drop-shadow(0 0 8px rgba(230,0,18,0.5)); 
        }

        .stat-item p { font-size: 1.1em; color: rgba(255,255,255,0.6);  font-weight:300;}
        /* ==========================================
           4. CLIENTS
        ========================================== */
.partner{background:#f5f5f5; padding:80px 0;}
        .client-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
        .client-logo { display: flex; align-items: center; justify-content: center; width: calc(20% - 13px); height: 110px; background: #fff; border: none; border-radius: 12px; transition: 0.3s; cursor: pointer; padding: 20px; box-shadow: var(--shadow-soft); }
        .client-logo img { max-width: 85%; max-height: 45px; object-fit: contain; filter: grayscale(1) opacity(0.4); transition: 0.3s; }
        .client-logo:hover { transform: translateY(-5px); box-shadow: var(--shadow-glass); }
        .client-logo:hover img { filter: grayscale(0) opacity(1); }

        /* ==========================================
           5. WHY BRITESTONE
        ========================================== */
        .section-why { position: relative; background: #050505 url('/britestone/img/main_bn1.png') center/cover fixed; padding-bottom: 160px; }
        .section-why::before { content: ''; position: absolute; inset: 0; background: rgba(10, 14, 20, 0.6); }
        
        .why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 20px; }
        
        .why-card { 
            background: rgba(255, 255, 255, 0.05); backdrop-filter: var(--glass-blur); 
            border-radius: var(--radius); padding: 60px 40px; text-align: center; color: #fff; 
            transition: var(--transition);
        }
        .why-card:hover { transform: translateY(-10px); background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
        
        .why-card i { font-size: 3rem; color: var(--primary); margin-bottom: 25px; transition: 0.3s; }
        .why-card:hover i { transform: scale(1.1); }
        .why-card h4 { font-size: 1.6em; color: #fff; }
        .why-card p { font-size: 1.05rem; color: rgba(255,255,255,0.7); line-height: 1.6; word-break: keep-all; }
        
        .why-action { text-align: center; margin-top: 60px; }

        /* ==========================================
           6. CORE SERVICES
        ========================================== */
        .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
        .service-card { position: relative; height: 460px; border-radius: 10px; overflow: hidden; background: #000; transition: var(--transition); border: none; box-shadow: var(--shadow-soft); cursor: pointer; }
        .service-img { position: absolute; inset: 0; opacity: 0.9; transition: 0.8s ease; background-size: cover; background-position: center; mix-blend-mode: luminosity; }
        .service-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-glass); }
        .service-card:hover .service-img { opacity: 1; transform: scale(1.08); mix-blend-mode: normal; }
        
        .service-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15, 23, 42, 0.7) 0%, transparent 80%); z-index: 2; transition: 0.4s; }
        .service-card:hover::before { background: linear-gradient(to top, rgba(15, 23, 42, 0.5) 0%, rgba(230,0,18,0.6) 100%); }
        
        .service-info { position: relative; z-index: 3; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding: 40px 30px; color: #fff; }
        .service-info h3 {  font-size: 1.6rem; font-weight: 800; margin-bottom: 12px; line-height: 1.2; transition: 0.3s; }
        .service-info p { font-size: 1rem; color: #cbd5e1; line-height: 1.6; margin-bottom: 25px; word-break: keep-all; }
        
        .view-arrow { font-size: 1.4rem; color: #fff; transition: 0.4s; }
        .service-card:hover .view-arrow { color: var(--primary); transform: translateX(5px); }

        /* ==========================================
           7. VENDORS
        ========================================== */

		#vendors{background:#f5f5f5;  padding:70px 0;}
        .vendor-swiper { padding: 0 0 60px 0 !important;  padding-left: 30px !important;   margin-left: -30px !important;}
        .vendor-card { background:#fff; border-radius: 10px; padding: 40px 30px; display: flex !important; flex-direction: column; align-items: center; justify-content: center; text-align: center; border: none; transition: 0.4s; height: 260px; cursor: pointer; box-shadow: none; }
        .vendor-card:hover { background: #fff; box-shadow:    0 10px 20px rgba(0, 0, 0, 0.03),     0 20px 50px rgba(0, 0, 0, 0.06); transform: translateY(-5px); }
        .vendor-card img { max-width: 75%; max-height: 45px; object-fit: contain; margin-bottom: 20px; filter: grayscale(0) opacity(1); transition: 0.4s; }
        .vendor-card:hover img { filter: grayscale(0) opacity(1); }
        .vendor-card p { font-size: 1.1em; font-weight: 500;  line-height: 1.5; word-break: keep-all; }
        .swiper-pagination-bullet-active { background: var(--primary) !important; width: 25px; border-radius: 8px; }

        /* ==========================================
           8. INSIGHTS & INQUIRY
        ========================================== */
        .section-support { position: relative; background: #fff; overflow: hidden; }
        
        .insights-inquiry-flex { display: flex; gap: 40px; margin-top: 20px; align-items: stretch; position: relative; z-index: 2; }
        

        .news-side { flex: 1.4; display: flex; flex-direction: column; justify-content: space-between; }
        .news-list { display: flex; flex-direction: column; gap: 15px; flex: 1; }
        
        .news-item { 
            display: flex; justify-content: space-between; align-items: center; 
            padding: 26px 30px; background: rgba(255,255,255,0.7); backdrop-filter: blur(10px);
            border: 1px solid var(--border); border-radius: 12px; 
            text-decoration: none; transition: 0.3s; box-shadow: 0 4px 15px rgba(0,0,0,0.02);
        }
        .news-item:hover { background: #fff; border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 10px 25px rgba(230,0,18,0.08); }
        
        .news-tit { font-size: 1.15rem; font-weight: 600; color: var(--black); transition: 0.3s; display: flex; align-items: center; gap: 12px; }
        .news-tit::before { content: ''; display: block; width: 6px; height: 6px; border-radius: 50%; background: #ccc; transition: 0.3s; }
        .news-item:hover .news-tit::before { background: var(--primary); box-shadow: 0 0 10px var(--primary); }
        .news-item:hover .news-tit { color: var(--primary); }
        
        .news-date {  font-size: 0.95rem; color: #94a3b8; }
        
        .social-btns { display: flex; gap: 15px; margin-top: 30px; }
        .social-btn { flex: 1; padding: 18px 20px; border-radius: 50px; font-weight: 700; font-size: 0.95rem; text-decoration: none; display: flex; align-items: center; justify-content: center; gap: 8px; transition: 0.3s; color: var(--text-sub); background: rgba(255,255,255,0.7); backdrop-filter: blur(10px); border: 1px solid #fff; box-shadow: 0 5px 20px rgba(0,0,0,0.03); }
        .social-btn:hover { color: var(--primary); transform: translateY(-3px); box-shadow: 0 10px 20px rgba(230,0,18,0.1);  }


        .inquiry-side { 
            flex: 1; 
            position: relative; overflow: hidden;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.65) 0%, rgba(15, 23, 42, 0.4) 100%), url('/britestone/img/sp2.png') center/cover;
            padding: 60px 50px; border-radius: var(--radius); 
            display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; 
            color: #fff; box-shadow: 0 20px 50px rgba(0,0,0,0.15); 
            border: 1px solid rgba(255,255,255,0.15);
        }

        .inquiry-side::before {
            content: ''; position: absolute; top: -20%; right: -10%; width: 250px; height: 250px;
            background: radial-gradient(circle, rgba(230,0,18,0.4) 0%, transparent 70%);
            border-radius: 50%; filter: blur(40px); z-index: 0; pointer-events: none; transition: 1s;
        }
        .inquiry-side::after {
            content: ''; position: absolute; bottom: -20%; left: -10%; width: 250px; height: 250px;
            background: radial-gradient(circle, rgba(59,130,246,0.3) 0%, transparent 70%);
            border-radius: 50%; filter: blur(40px); z-index: 0; pointer-events: none; transition: 1s;
        }
        .inquiry-side:hover::before, .inquiry-side:hover::after { transform: scale(1.2); opacity: 0.8; }

        .inquiry-top { position: relative; z-index: 2; width: 100%; }
        .inquiry-top .badge { display: inline-block; padding: 6px 20px; background: rgba(255,255,255,0.1);  color: #fff; border-radius: 50px; font-size: 0.85rem;  margin-bottom: 10px; letter-spacing: 1px; }
        .inquiry-top h3 { font-size: 2.2rem; line-height: 1.3; margin-bottom: 20px; color: #fff; }
        .inquiry-top p { font-size: 1.1rem; color: rgba(255,255,255,0.7); line-height: 1.6; word-break: keep-all; margin-bottom: 40px; }

        .inquiry-side .btn { color: #fff; z-index: 2; position: relative; border-bottom-color: rgba(255,255,255,0.4); margin-bottom: 10px; }
        .inquiry-side .btn:hover { color: #fff; border-bottom-color: #fff; }

/* ==========================================
           9. BOTTOM 
        ========================================== */
        .bottom-cta-wrap { 
            position: relative; padding: 140px 0; overflow: hidden; 
            background: url('/britestone/img/building.png') center / cover fixed;
        }
        .bottom-cta-wrap::before { content: ''; position: absolute; inset: 0; background: rgba(10, 14, 20, 0.2); }

        .cta-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 1400px; margin: 0 auto; }
        
        .cta-card { 
            position: relative; overflow: hidden; 
            background: rgba(255, 255, 255, 0.1); 
            backdrop-filter: blur(20px); 
           border-radius: var(--radius); padding: 80px 60px; 
            text-decoration: none; transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1); 
            display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
            box-shadow: var(--shadow-glass); color: #fff;
        }

        .cta-card > * { position: relative; z-index: 2; }
        .cta-card .btn-wrap { display: flex; width: auto; z-index: 2; position: relative; }


        .cta-card::after {
            content: ''; 
            position: absolute; bottom: 40px; right: 40px;
            width: 80px; height: 80px; 
            background: url('/britestone/img/logo_ic.png') no-repeat center/contain;
            opacity: 0.15; 
            filter: brightness(0) invert(1); 
            transition: 0.8s cubic-bezier(0.16, 1, 0.3, 1); z-index: 0; pointer-events: none;
        }

        .cta-card:hover { 
            background: rgba(255, 255, 255, 0.08); 
            
            transform: translateY(-8px); box-shadow: 0 20px 50px rgba(0,0,0,0.3);
        }
        
     
        .cta-card:hover::after { 
            transform: rotate(180deg) scale(1.1); 
            opacity: 0.4; 
        }

        .cta-card span.label { font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: 2px; margin-bottom: 10px; display: block; }
        .cta-card h3 { font-size: 2.4rem; margin-bottom: 15px; line-height: 1.3; color: #fff; transition: 0.3s; }
        .cta-card p { font-size: 1.15rem; font-weight: 400; color: rgba(255,255,255,0.7); margin-bottom: 50px; }
        
  
        .cta-card .btn-fake { 
            display: inline-flex; align-items: center; gap: 8px;
            pointer-events: none; color: #fff; 
            border-bottom: 2px solid rgba(255,255,255,0.4); 
            padding-bottom: 4px; transition: 0.3s ease;
        }
        .cta-card:hover .btn-fake { border-bottom-color: #fff; transform: translateX(5px); }
        .cta-card:hover .btn-fake i { transform: translateX(5px); }