:root{--bg-primary: #0a0c14;--bg-secondary: #111420;--bg-card: rgba(18, 21, 35, .85);--bg-card-hover: rgba(24, 28, 48, .9);--gold-50: #fefce8;--gold-100: #fef9c3;--gold-200: #fef08a;--gold-300: #fde047;--gold-400: #facc15;--gold-500: #d4a017;--gold-600: #b8860b;--gold-700: #92700a;--gold-800: #6b5210;--gold-900: #3d2e06;--text-primary: #f0e6d3;--text-secondary: #a09882;--text-muted: #6b6560;--text-gold: #d4a017;--border-subtle: rgba(212, 160, 23, .12);--border-gold: rgba(212, 160, 23, .3);--border-gold-strong: rgba(212, 160, 23, .5);--gradient-gold: linear-gradient(135deg, #d4a017, #f0c850, #d4a017);--gradient-gold-text: linear-gradient(135deg, #f0c850, #d4a017, #b8860b);--gradient-bg: radial-gradient(ellipse at top, #151830 0%, #0a0c14 60%);--gradient-shimmer: linear-gradient( 110deg, transparent 25%, rgba(212, 160, 23, .04) 37%, transparent 63% );--shadow-card: 0 4px 24px rgba(0, 0, 0, .4), 0 0 0 1px var(--border-subtle);--shadow-gold-glow: 0 0 40px rgba(212, 160, 23, .08);--shadow-gold-strong: 0 0 60px rgba(212, 160, 23, .12);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--container-max: 800px;--section-gap: 4rem;--transition-fast: .15s ease;--transition-base: .3s ease;--transition-slow: .5s ease}[data-theme=light]{--bg-primary: #f5f0e8;--bg-secondary: #ede6da;--bg-card: rgba(255, 255, 255, .92);--bg-card-hover: rgba(250, 245, 235, .95);--text-primary: #1a1510;--text-secondary: #3d3730;--text-muted: #6b6358;--text-gold: #8b6914;--gold-300: #8b6914;--gold-400: #9a7518;--gold-500: #7a5c10;--gold-600: #6b4f0c;--gold-700: #5a4208;--border-subtle: rgba(100, 80, 30, .18);--border-gold: rgba(120, 90, 30, .35);--border-gold-strong: rgba(120, 90, 30, .55);--gradient-gold-text: linear-gradient(135deg, #8b6914, #6b4f0c, #5a4208);--gradient-bg: radial-gradient(ellipse at top, #f5f0e8 0%, #ede6da 60%);--gradient-shimmer: linear-gradient( 110deg, transparent 25%, rgba(212, 160, 23, .03) 37%, transparent 63% );--shadow-card: 0 2px 16px rgba(0, 0, 0, .08), 0 0 0 1px var(--border-subtle);--shadow-gold-glow: 0 0 20px rgba(212, 160, 23, .05)}[data-theme=light] .navbar{background:#f5f0e8eb;border-bottom-color:#64501e26}[data-theme=light] .price-table tbody td:last-child{color:#7a5c10}[data-theme=light] .gold-karat-badge{color:#5a4208}[data-theme=light] .karat-24{background:linear-gradient(135deg,#c8a02833,#b48c144d);border-color:#a0781466}[data-theme=light] .karat-22{background:linear-gradient(135deg,#c8a02829,#b48c143d);border-color:#a078144d}[data-theme=light] .karat-21{background:linear-gradient(135deg,#b48c2824,#a0781433);border-color:#8c6e1447}[data-theme=light] .karat-18{background:linear-gradient(135deg,#a082281f,#8c6e142e);border-color:#82641440}[data-theme=light] .karat-14{background:linear-gradient(135deg,#8c6e281a,#785f1429);border-color:#6e5a1438}[data-theme=light] .gold-purity{color:#6b6358}[data-theme=light] .hero-badge{background:#a078141a;border-color:#a078144d;color:#7a5c10}[data-theme=light] .calc-field select,[data-theme=light] .calc-field input{background:#fffc;color:#1a1510;border-color:#64501e33}[data-theme=light] .calc-result{background:#a078140f;border-color:#64501e2e}[data-theme=light] .calc-result-total .calc-result-value{color:#7a5c10}[data-theme=light] .social-btn{background:#fffc;color:#3d3730;border-color:#64501e2e}[data-theme=light] .faq-question{color:#1a1510}[data-theme=light] .last-updated{color:#6b6358}[data-theme=light] .last-updated time{color:#3d3730}.theme-toggle{background:none;border:1px solid var(--border-subtle);border-radius:50%;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);transition:all var(--transition-fast);padding:0;font-size:1rem;line-height:1}.theme-toggle:hover{color:var(--gold-400);border-color:var(--border-gold);background:#d4a0170f}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background:var(--bg-primary);background-image:var(--gradient-bg);color:var(--text-primary);line-height:1.7;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;background:var(--gradient-shimmer);background-size:200% 100%;animation:shimmer 8s ease-in-out infinite;pointer-events:none;z-index:0}@keyframes shimmer{0%,to{background-position:-200% 0}50%{background-position:200% 0}}a{color:var(--gold-400);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--gold-300)}img{max-width:100%;height:auto}svg{flex-shrink:0}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 1.25rem;position:relative;z-index:1}.navbar{padding:1.25rem 0;border-bottom:1px solid var(--border-subtle);backdrop-filter:blur(12px);background:#0a0c14cc;position:sticky;top:0;z-index:100}.navbar .container{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.1rem;letter-spacing:.02em;color:var(--text-primary);text-decoration:none}.logo-icon{font-size:1.4rem}.logo-text{background:var(--gradient-gold-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-links{display:flex;align-items:center;gap:1.5rem;list-style:none}.nav-links a{color:var(--text-secondary);font-size:.9rem;font-weight:500;transition:color var(--transition-fast)}.nav-links a:hover{color:var(--gold-400)}.social-icons-nav{display:flex;gap:.8rem;align-items:center}.social-icons-nav a{color:var(--text-muted);font-size:1.1rem;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;width:2rem;height:2rem;border-radius:50%;border:1px solid transparent}.social-icons-nav a:hover{color:var(--gold-400);border-color:var(--border-gold);background:#d4a0170f}.hero{text-align:center;padding:4rem 0 1rem}.hero h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:900;line-height:1.1;margin-bottom:1rem;background:var(--gradient-gold-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.hero-subtitle{font-size:clamp(1rem,2.2vw,1.15rem);color:var(--text-secondary);max-width:580px;margin:0 auto 1.5rem;line-height:1.7;font-weight:400}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.45rem 1rem;background:#d4a01714;border:1px solid var(--border-gold);border-radius:100px;font-size:.8rem;color:var(--gold-400);font-weight:500}.hero-badge .dot{width:6px;height:6px;background:#22c55e;border-radius:50%;animation:pulse-dot 2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.price-section{padding:.5rem 0 var(--section-gap)}.price-card{background:var(--bg-card);border:1px solid var(--border-gold);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card),var(--shadow-gold-glow);backdrop-filter:blur(16px)}.price-card-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between}.price-card-title{font-size:1.05rem;font-weight:700;color:var(--text-primary)}.price-card-subtitle{font-size:.78rem;color:var(--text-muted);font-weight:400}.price-table{width:100%;border-collapse:collapse}.price-table thead th{padding:.85rem 1.5rem;text-align:left;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);border-bottom:1px solid var(--border-subtle)}.price-table thead th:last-child{text-align:right}.price-table tbody tr{transition:background var(--transition-fast)}.price-table tbody tr:hover{background:var(--bg-card-hover)}.price-table tbody td{padding:1rem 1.5rem;border-bottom:1px solid var(--border-subtle);font-size:.95rem}.price-table tbody tr:last-child td{border-bottom:none}.price-table tbody td:last-child{text-align:right;font-weight:700;font-variant-numeric:tabular-nums;color:var(--gold-400);font-size:1.05rem}.gold-type{display:flex;align-items:center;gap:.75rem}.gold-karat-badge{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:10px;font-weight:800;font-size:.7rem;letter-spacing:.02em}.karat-24{background:linear-gradient(135deg,#f0c85026,#d4a01740);color:var(--gold-300);border:1px solid rgba(212,160,23,.3)}.karat-22{background:linear-gradient(135deg,#f0c8501f,#d4a0172e);color:var(--gold-400);border:1px solid rgba(212,160,23,.2)}.karat-21{background:linear-gradient(135deg,#c8aa3c1a,#b48c1429);color:var(--gold-500);border:1px solid rgba(180,140,20,.2)}.karat-18{background:linear-gradient(135deg,#b48c2814,#96781424);color:var(--gold-600);border:1px solid rgba(150,120,20,.18)}.karat-14{background:linear-gradient(135deg,#9678280f,#7864141f);color:var(--gold-700);border:1px solid rgba(120,100,20,.15)}.gold-label{font-weight:600}.gold-purity{font-size:.78rem;color:var(--text-muted);font-weight:400}.last-updated{text-align:center;padding:1rem 0 0;font-size:.8rem;color:var(--text-muted)}.last-updated time{color:var(--text-secondary);font-weight:500}.historical-link-wrap{text-align:center;padding:1.25rem 0 .25rem}.historical-link{display:inline-flex;align-items:center;gap:.5rem;font-size:.9rem;font-weight:700;color:#1a1205;text-decoration:none;padding:.65rem 1.5rem;border:none;border-radius:100px;background:linear-gradient(135deg,#f0c040,#d4a017);box-shadow:0 2px 12px #d4a01759;transition:all var(--transition-base);letter-spacing:.01em}.historical-link svg{width:15px;height:15px;flex-shrink:0;color:#1a1205}.historical-link:hover{background:linear-gradient(135deg,#f5cc50,#e0b020);box-shadow:0 4px 20px #d4a01780;transform:translateY(-2px);color:#1a1205}.calc-section{padding-bottom:var(--section-gap)}.calc-body{padding:1.5rem}.calc-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.calc-field{display:flex;flex-direction:column;gap:.4rem}.calc-field label{font-size:.78rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.calc-optional{font-size:.65rem;font-weight:400;color:var(--text-muted);text-transform:none;letter-spacing:0}.calc-field select,.calc-field input{width:100%;padding:.75rem 1rem;background:#0a0c1499;border:1px solid var(--border-subtle);border-radius:10px;color:var(--text-primary);font-family:var(--font-family);font-size:.95rem;font-weight:500;transition:border-color var(--transition-fast);outline:none;-webkit-appearance:none;appearance:none}.calc-field select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b6560' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}.calc-field select:focus,.calc-field input:focus{border-color:var(--border-gold);box-shadow:0 0 0 3px #d4a01714}.calc-field input::placeholder{color:var(--text-muted);font-weight:400}.calc-field input[type=number]::-webkit-inner-spin-button,.calc-field input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.calc-field input[type=number]{-moz-appearance:textfield}.calc-result{background:#d4a0170a;border:1px solid var(--border-subtle);border-radius:12px;padding:1.25rem;margin-top:.5rem}.calc-result-row{display:flex;justify-content:space-between;align-items:center;padding:.35rem 0}.calc-result-label{font-size:.88rem;color:var(--text-secondary);font-weight:500}.calc-result-value{font-size:.95rem;font-weight:600;color:var(--text-primary);font-variant-numeric:tabular-nums}.calc-result-sub .calc-result-label,.calc-result-sub .calc-result-value{font-size:.82rem;color:var(--text-muted)}.calc-result-divider{height:1px;background:var(--border-subtle);margin:.6rem 0}.calc-result-total .calc-result-label{font-size:1rem;font-weight:700;color:var(--text-primary)}.calc-result-total .calc-result-value{font-size:1.2rem;font-weight:800;color:var(--gold-400)}@media(max-width:640px){.calc-row{grid-template-columns:1fr}}.social-section{display:flex;align-items:center;justify-content:center;gap:1rem;padding:1rem 0 var(--section-gap);flex-wrap:wrap}.social-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.65rem 1.25rem;border-radius:10px;font-size:.85rem;font-weight:600;transition:all var(--transition-base);border:1px solid var(--border-subtle);background:var(--bg-card);color:var(--text-secondary);text-decoration:none}.social-btn:hover{border-color:var(--border-gold);background:#d4a0170f;color:var(--gold-400);transform:translateY(-2px);box-shadow:var(--shadow-gold-glow)}.social-btn svg{width:18px;height:18px}.info-section{padding-bottom:var(--section-gap)}.info-content{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:16px;padding:2rem}.info-content h2{font-size:1.4rem;font-weight:700;margin-bottom:1rem;color:var(--text-primary)}.info-content p{color:var(--text-secondary);margin-bottom:1rem;line-height:1.8;font-size:.95rem}.info-content p:last-child{margin-bottom:0}.info-content ul{color:var(--text-secondary);margin-bottom:1rem;padding-left:1.5rem;line-height:1.8;font-size:.95rem}.info-content ul li{margin-bottom:.4rem}.faq-section{padding-bottom:var(--section-gap)}.faq-section h2{font-size:1.6rem;font-weight:800;text-align:center;margin-bottom:2rem;background:var(--gradient-gold-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.faq-list{display:flex;flex-direction:column;gap:.75rem}.faq-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:12px;overflow:hidden;transition:border-color var(--transition-base)}.faq-item:hover{border-color:var(--border-gold)}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.4rem;background:none;border:none;cursor:pointer;text-align:left;font-family:var(--font-family);font-size:.95rem;font-weight:600;color:var(--text-primary);transition:color var(--transition-fast)}.faq-question:hover{color:var(--gold-400)}.faq-chevron{width:20px;height:20px;color:var(--text-muted);transition:transform var(--transition-base);flex-shrink:0}.faq-item.open .faq-chevron{transform:rotate(180deg);color:var(--gold-400)}.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-base),padding var(--transition-base)}.faq-item.open .faq-answer{max-height:300px}.faq-answer-inner{padding:0 1.4rem 1.2rem;color:var(--text-secondary);line-height:1.8;font-size:.9rem}.footer{border-top:1px solid var(--border-subtle);padding:2rem 0}.footer .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.footer-brand{font-weight:700;font-size:.9rem;background:var(--gradient-gold-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-links{display:flex;gap:1.5rem;list-style:none}.footer-links a{color:var(--text-muted);font-size:.82rem;font-weight:500;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--gold-400)}.footer-copy{width:100%;text-align:center;font-size:.75rem;color:var(--text-muted);margin-top:.5rem}@media(max-width:640px){.hero{padding:3rem 0 2rem}.hero h1{font-size:2rem}.price-card-header{flex-direction:column;align-items:flex-start;gap:.4rem}.price-table thead th,.price-table tbody td{padding:.85rem 1rem}.gold-karat-badge{width:2rem;height:2rem;font-size:.6rem;border-radius:8px}.social-section{gap:.6rem}.social-btn{padding:.55rem 1rem;font-size:.8rem}.info-content{padding:1.5rem}.footer .container{justify-content:center;text-align:center}.nav-links{display:none}}