/* ============================================================
   Gold Price Today — site stylesheet
   Tokens: ___root.css | Fonts: Space Grotesk + JetBrains Mono
   ============================================================ */
:root{
	--font-sans: "Space Grotesk", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
	--font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
	--header-h: 64px;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
	margin:0; padding:0;
	background:var(--bg-color);
	color:var(--text-color);
	font-family:var(--font-sans);
	font-size:16px; line-height:1.65;
	-webkit-font-smoothing:antialiased;
	transition:background-color .25s ease, color .25s ease;
	min-height:100vh; display:flex; flex-direction:column;
}
main{ flex:1 0 auto; width:100%; }
a{ color:var(--t-color-main-dark-2); text-decoration:none; }
.dark a{ color:var(--t-color-main-light-5); }
a:hover{ color:var(--t-color-main); }
img,svg{ vertical-align:middle; }
p{ text-wrap:pretty; }
h1,h2,h3,h4{ text-wrap:balance; line-height:1.25; margin:0 0 .5em; }

.container{ max-width:1120px; margin:0 auto; padding:0 20px; }
.container-narrow{ max-width:760px; margin:0 auto; padding:0 20px; }

/* ---------------- Header ---------------- */
.site-header{
	position:sticky; top:0; z-index:100;
	background:var(--bg-color-trans-1);
	backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
	border-bottom:1px solid var(--border-color);
}
.header-inner{
	max-width:1120px; margin:0 auto; padding:0 20px;
	height:var(--header-h);
	display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.logo{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:19px; letter-spacing:-.01em; color:var(--text-color); white-space:nowrap; }
.logo:hover{ color:var(--t-color-main); }
.logo svg{ flex:0 0 auto; }
.logo b{ color:var(--t-color-main); font-weight:700; }

.main-nav ul{ display:flex; gap:4px; list-style:none; margin:0; padding:0; }
.main-nav a{
	display:block; padding:8px 12px; border-radius:var(--t-radius);
	font-size:14.5px; font-weight:500; color:var(--text-color-light-1);
	transition:color .15s, background-color .15s;
}
.main-nav a:hover{ color:var(--text-color); background:var(--bg-color-dark-1); }
.main-nav a.active{ color:var(--t-color-main-dark-2); background:var(--Primary-color-light); font-weight:600; }
.dark .main-nav a.active{ color:var(--t-color-main-light-5); background:var(--bg-color-dark-2); }

.header-controls{ display:flex; align-items:center; gap:8px; }

/* language dropdown */
.lang-wrap{ position:relative; }
.lang-btn{
	display:flex; align-items:center; gap:6px;
	padding:7px 10px; border:1px solid var(--border-color); border-radius:var(--t-radius);
	background:transparent; color:var(--text-color-light-1);
	font-family:inherit; font-size:13.5px; font-weight:500; cursor:pointer;
	transition:border-color .15s, color .15s;
}
.lang-btn:hover{ border-color:var(--t-color-main); color:var(--text-color); }
.lang-btn svg{ width:15px; height:15px; }
.lang-btn .caret{ width:10px; height:10px; transition:transform .2s; }
.lang-wrap.open .lang-btn .caret{ transform:rotate(180deg); }
.lang-menu{
	position:absolute; right:0; top:calc(100% + 6px); min-width:160px;
	background:var(--bg-color); border:1px solid var(--border-color); border-radius:var(--t-box-radius);
	box-shadow:0 10px 30px rgba(0,0,0,.12); padding:6px;
	opacity:0; visibility:hidden; transform:translateY(-4px);
	transition:opacity .15s, transform .15s, visibility .15s;
}
.lang-wrap.open .lang-menu{ opacity:1; visibility:visible; transform:translateY(0); }
.lang-menu a{
	display:flex; align-items:center; justify-content:space-between; gap:8px;
	padding:8px 12px; border-radius:8px; font-size:14px; color:var(--text-color-light-1);
}
.lang-menu a:hover{ background:var(--bg-color-dark-1); color:var(--text-color); }
.lang-menu a.current{ color:var(--t-color-main-dark-2); font-weight:600; }
.dark .lang-menu a.current{ color:var(--t-color-main-light-5); }
.lang-menu a .check{ visibility:hidden; }
.lang-menu a.current .check{ visibility:visible; }
.lang-menu .lang-disabled{ padding:8px 12px; font-size:13px; color:var(--text-color-light-5); cursor:default; }

/* theme toggle */
.icon-btn{
	display:flex; align-items:center; justify-content:center;
	width:36px; height:36px; border:1px solid var(--border-color); border-radius:var(--t-radius);
	background:transparent; color:var(--text-color-light-1); cursor:pointer;
	transition:border-color .15s, color .15s, background-color .15s;
}
.icon-btn:hover{ border-color:var(--t-color-main); color:var(--t-color-main); }
.icon-btn svg{ width:17px; height:17px; }
.icon-btn .sun{ display:none; }
.dark .icon-btn .sun{ display:block; }
.dark .icon-btn .moon{ display:none; }

/* mobile hamburger */
.hamburger{ display:none; }
.mobile-nav{ display:none; }

/* ---------------- Hero (live price) ---------------- */
.hero{ padding:56px 0 40px; text-align:center; }
.hero-eyebrow{
	display:inline-flex; align-items:center; gap:8px;
	font-size:12px; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
	color:var(--text-color-light-3); margin-bottom:14px;
}
.hero h1{ font-size:clamp(26px,4vw,34px); margin-bottom:6px; letter-spacing:-.02em; }
.hero .sub{ color:var(--text-color-light-3); font-size:15.5px; max-width:640px; margin:0 auto; }

.price-box{ margin:34px auto 10px; }
.price-value{
	font-family:var(--font-mono); font-weight:700; letter-spacing:-.03em;
	font-size:clamp(46px,9vw,84px); line-height:1.05; color:var(--text-color);
	font-variant-numeric:tabular-nums;
}
.price-value .cur-sym{ color:var(--t-color-main); margin-right:2px; }
.price-per{ color:var(--text-color-light-3); font-size:14.5px; margin-top:6px; }

.change-chip{
	display:inline-flex; align-items:center; gap:6px; margin-top:16px;
	padding:5px 12px; border-radius:999px;
	font-family:var(--font-mono); font-size:14px; font-weight:600;
}
.change-chip .arrow{ font-size:11px; }
.change-chip.up{ color:var(--up-color); background:color-mix(in srgb, var(--up-color) 12%, transparent); }
.change-chip.down{ color:var(--down-color); background:color-mix(in srgb, var(--down-color) 12%, transparent); }
.change-chip.flat{ color:var(--text-color-light-3); background:var(--bg-color-dark-1); }

/* live status */
.status-line{ display:flex; align-items:center; justify-content:center; gap:8px; margin-top:18px; font-size:13px; color:var(--text-color-light-3); }
.status-dot{ width:8px; height:8px; border-radius:50%; flex:0 0 auto; }
.status-dot.live{ background:var(--up-color); animation:pulse 2s infinite; }
.status-dot.delayed{ background:var(--Warning-color); }
.status-dot.offline{ background:var(--text-color-light-5); }
@keyframes pulse{ 0%{box-shadow:0 0 0 0 color-mix(in srgb, var(--up-color) 45%, transparent);} 70%{box-shadow:0 0 0 7px transparent;} 100%{box-shadow:0 0 0 0 transparent;} }

/* segmented unit toggle */
.pill-group{
	display:inline-flex; padding:4px; gap:2px; margin-top:26px;
	background:var(--bg-color-dark-1); border:1px solid var(--border-color); border-radius:10px;
}
.pill-group button{
	border:0; background:transparent; padding:7px 16px; border-radius:7px;
	font-family:inherit; font-size:13.5px; font-weight:600; color:var(--text-color-light-3);
	cursor:pointer; transition:all .15s;
}
.pill-group button:hover{ color:var(--text-color); }
.pill-group button.active{ background:var(--bg-color); color:var(--t-color-main-dark-2); box-shadow:0 1px 4px rgba(0,0,0,.1); }
.dark .pill-group button.active{ background:var(--bg-color-dark-3); color:var(--t-color-main-light-5); box-shadow:none; }
.dark .pill-group{ background:var(--bg-color-dark-2); }

.currency-select{
	margin-top:14px; display:inline-flex; align-items:center; gap:8px;
	font-size:13.5px; color:var(--text-color-light-3);
}
select.input, input.input{
	padding:8px 12px; border:1px solid var(--border-color); border-radius:var(--t-radius);
	background:var(--bg-color); color:var(--text-color);
	font-family:inherit; font-size:14.5px;
	transition:border-color .15s;
}
select.input:focus, input.input:focus{ outline:none; border-color:var(--t-color-main); box-shadow:0 0 0 3px var(--t-color-main-shadow); }

/* ---------------- Cards & grids ---------------- */
.section{ padding:36px 0; }
.section-title{ font-size:21px; font-weight:700; letter-spacing:-.01em; margin-bottom:4px; }
.section-sub{ color:var(--text-color-light-3); font-size:14.5px; margin-bottom:22px; }
.grid{ display:grid; gap:16px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
	background:var(--bg-color-dark-1);
	border:1px solid var(--border-color); border-radius:var(--t-box-radius);
	padding:22px;
	transition:transform .18s ease, box-shadow .18s ease, border-color .18s;
}
a.card{ display:block; color:inherit; }
a.card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-card); border-color:var(--t-color-main-light-5); text-decoration:none; }
.card h3{ font-size:16.5px; font-weight:600; margin-bottom:6px; }
.card p{ font-size:14px; color:var(--text-color-light-3); margin:0; }
.card .card-icon{ margin-bottom:12px; }
.card .card-icon svg{ width:22px; height:22px; color:var(--t-color-main-dark-2); }
.dark .card .card-icon svg{ color:var(--t-color-main-light-5); }

/* metal mini card */
.metal-card .m-label{ display:flex; align-items:center; gap:8px; font-size:14px; font-weight:600; color:var(--text-color-light-1); margin-bottom:10px; }
.metal-card .m-dot{ width:9px; height:9px; border-radius:50%; }
.metal-card .m-price{ font-family:var(--font-mono); font-size:24px; font-weight:700; font-variant-numeric:tabular-nums; }
.metal-card .m-unit{ font-size:12.5px; color:var(--text-color-light-3); font-family:var(--font-sans); font-weight:400; }
.metal-card .m-chg{ font-family:var(--font-mono); font-size:13px; font-weight:600; margin-top:4px; }
.metal-card .m-chg.up{ color:var(--up-color); }
.metal-card .m-chg.down{ color:var(--down-color); }

/* ---------------- Tables ---------------- */
.table-wrap{ overflow-x:auto; border:1px solid var(--border-color); border-radius:var(--t-box-radius); background:var(--bg-color-dark-1); }
table.price-table{ width:100%; border-collapse:collapse; font-size:14.5px; min-width:560px; }
.price-table th{
	text-align:left; padding:13px 18px; font-size:12px; font-weight:600;
	letter-spacing:.08em; text-transform:uppercase; color:var(--text-color-light-3);
	border-bottom:1px solid var(--border-color);
}
.price-table td{ padding:13px 18px; border-bottom:1px solid var(--border-color); }
.price-table tbody tr:last-child td{ border-bottom:0; }
.price-table tbody tr:hover td{ background:color-mix(in srgb, var(--t-color-main) 4%, transparent); }
.price-table td.num, .price-table th.num{ text-align:right; font-family:var(--font-mono); font-variant-numeric:tabular-nums; }
.price-table td .row-label{ font-weight:600; }
.td-up{ color:var(--up-color); font-weight:600; }
.td-down{ color:var(--down-color); font-weight:600; }

/* ---------------- Buttons ---------------- */
.btn{
	display:inline-flex; align-items:center; gap:8px;
	padding:10px 20px; border-radius:var(--t-radius); border:1px solid transparent;
	font-family:inherit; font-size:14.5px; font-weight:600; cursor:pointer;
	transition:all .15s; text-decoration:none;
}
.btn-primary{ background:var(--t-color-main); color:#fff; }
.btn-primary:hover{ background:var(--t-color-main-dark-2); color:#fff; }
.btn-ghost{ background:transparent; border-color:var(--border-color); color:var(--text-color-light-1); }
.btn-ghost:hover{ border-color:var(--t-color-main); color:var(--t-color-main); }

/* ---------------- Calculator ---------------- */
.calc-grid{ display:grid; grid-template-columns:1fr 1fr; gap:28px; align-items:start; }
.calc-result{
	padding:26px; border-radius:var(--t-box-radius);
	background:linear-gradient(135deg, var(--t-color-main-light-1), var(--bg-color-dark-1));
	border:1px solid var(--t-color-main-light-3);
}
.calc-result .r-label{ font-size:12.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--text-color-light-3); margin-bottom:8px; }
.calc-result .r-value{ font-family:var(--font-mono); font-size:clamp(28px,4vw,40px); font-weight:700; font-variant-numeric:tabular-nums; }
.form-row{ margin-bottom:14px; }
.form-row label{ display:block; font-size:13.5px; font-weight:600; margin-bottom:6px; color:var(--text-color-light-1); }
.form-row .input{ width:100%; }
.form-2col{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }

/* ---------------- Chart page ---------------- */
.chart-tabs{ display:flex; gap:6px; flex-wrap:wrap; margin-bottom:18px; }
.chart-tabs button{
	border:1px solid var(--border-color); background:transparent; color:var(--text-color-light-1);
	padding:7px 15px; border-radius:999px; font-family:var(--font-mono); font-size:13px; font-weight:600;
	cursor:pointer; transition:all .15s;
}
.chart-tabs button:hover{ border-color:var(--t-color-main); color:var(--t-color-main); }
.chart-tabs button.active{ background:var(--t-color-main); border-color:var(--t-color-main); color:#fff; }
.chart-container{
	position:relative; height:420px;
	background:var(--bg-color-dark-1); border:1px solid var(--border-color); border-radius:var(--t-box-radius); padding:18px;
}
.chart-error{ display:none; padding:60px 20px; text-align:center; color:var(--text-color-light-3); }

/* ---------------- Articles ---------------- */
.breadcrumb{ font-size:13.5px; color:var(--text-color-light-3); margin:26px 0 18px; display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.breadcrumb a{ color:var(--text-color-light-3); }
.breadcrumb a:hover{ color:var(--t-color-main); }
.article{ max-width:720px; margin:0 auto; padding:20px 20px 60px; }
.article h1{ font-size:clamp(26px,4vw,34px); letter-spacing:-.02em; margin-bottom:10px; }
.article .meta{ font-size:13.5px; color:var(--text-color-light-5); margin-bottom:30px; }
.article h2{ font-size:21px; margin-top:38px; }
.article h3{ font-size:17px; margin-top:26px; }
.article p, .article li{ font-size:15.5px; color:var(--text-color-light-1); }
.article ul, .article ol{ padding-left:22px; }
.article li{ margin-bottom:7px; }
.article table{ width:100%; border-collapse:collapse; margin:20px 0; font-size:14.5px; }
.article table th, .article table td{ border:1px solid var(--border-color); padding:9px 13px; text-align:left; }
.article table th{ background:var(--bg-color-dark-1); }
.article blockquote{
	margin:22px 0; padding:14px 20px; border-left:3px solid var(--t-color-main);
	background:var(--bg-color-dark-1); border-radius:0 var(--t-radius) var(--t-radius) 0;
	color:var(--text-color-light-1); font-size:14.5px;
}
.notice{
	padding:14px 18px; border-radius:var(--t-radius); font-size:13.5px;
	background:var(--Warning-color-light); color:var(--Warning-color-dark-3);
	border:1px solid var(--Warning-color-light-1); margin:24px 0;
}

/* ---------------- FAQ ---------------- */
.faq-item{ border:1px solid var(--border-color); border-radius:var(--t-radius); margin-bottom:10px; background:var(--bg-color-dark-1); overflow:hidden; }
.faq-item summary{
	padding:15px 18px; cursor:pointer; font-weight:600; font-size:15px;
	list-style:none; display:flex; justify-content:space-between; align-items:center; gap:12px;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-family:var(--font-mono); color:var(--t-color-main); font-size:18px; transition:transform .2s; }
.faq-item[open] summary::after{ transform:rotate(45deg); }
.faq-item .faq-body{ padding:0 18px 15px; font-size:14.5px; color:var(--text-color-light-1); }

/* ---------------- Legal / static pages ---------------- */
.static-page{ max-width:760px; margin:0 auto; padding:44px 20px 60px; }
.static-page h1{ font-size:clamp(25px,3.6vw,32px); letter-spacing:-.02em; }
.static-page h2{ font-size:19px; margin-top:32px; }
.static-page p, .static-page li{ font-size:15px; color:var(--text-color-light-1); }
.static-page .updated{ font-size:13px; color:var(--text-color-light-5); margin-bottom:28px; }

/* ---------------- Footer ---------------- */
.site-footer{ border-top:1px solid var(--border-color); margin-top:48px; background:var(--bg-color-dark-1); }
.footer-inner{ max-width:1120px; margin:0 auto; padding:44px 20px 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:32px; }
.footer-brand .logo{ margin-bottom:10px; }
.footer-brand p{ font-size:13.5px; color:var(--text-color-light-3); max-width:280px; margin:0; }
.footer-col h4{ font-size:12.5px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--text-color-light-3); margin-bottom:14px; }
.footer-col ul{ list-style:none; margin:0; padding:0; }
.footer-col li{ margin-bottom:9px; }
.footer-col a{ font-size:14px; color:var(--text-color-light-1); }
.footer-col a:hover{ color:var(--t-color-main); }
.footer-bottom{
	border-top:1px solid var(--border-color); padding-top:20px;
	display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
	font-size:12.5px; color:var(--text-color-light-5);
}
.footer-note{ font-size:12.5px; color:var(--text-color-light-5); max-width:760px; margin-top:14px; line-height:1.6; }

/* ---------------- Responsive ---------------- */
@media (max-width: 920px){
	.main-nav{ display:none; }
	.hamburger{ display:flex; }
	.grid-4{ grid-template-columns:repeat(2,1fr); }
	.grid-3{ grid-template-columns:repeat(2,1fr); }
	.footer-grid{ grid-template-columns:repeat(2,1fr); }
	.calc-grid{ grid-template-columns:1fr; }
	.mobile-nav{
		display:none; position:absolute; top:var(--header-h); left:0; right:0;
		background:var(--bg-color); border-bottom:1px solid var(--border-color);
		padding:10px 20px 16px; box-shadow:0 14px 30px rgba(0,0,0,.1);
	}
	.mobile-nav.open{ display:block; }
	.mobile-nav a{
		display:block; padding:12px 8px; font-size:15.5px; font-weight:500;
		color:var(--text-color-light-1); border-bottom:1px solid var(--border-color);
	}
	.mobile-nav a:last-child{ border-bottom:0; }
	.mobile-nav a.active{ color:var(--t-color-main-dark-2); font-weight:600; }
}
@media (max-width: 560px){
	.grid-2, .grid-3, .grid-4{ grid-template-columns:1fr; }
	.footer-grid{ grid-template-columns:1fr; gap:24px; }
	.hero{ padding:40px 0 28px; }
	.chart-container{ height:320px; }
	.price-value{ font-size:clamp(40px,13vw,60px); }
}

@media (prefers-reduced-motion: reduce){
	*,*::before,*::after{ animation-duration:.01ms !important; transition-duration:.01ms !important; }
	html{ scroll-behavior:auto; }
}