/* Rainy Night Drive-Thru — a night plate. The scene is dark and wet, so the
   chrome is too: a smoked-glass control panel over the render, the brand's
   gold for anything live, an engineer's monospace for anything measured.
   Shared by the live concept and the case study. */

:root {
	--night: #04060b;
	--panel: rgba(10, 14, 22, 0.74);
	--surface: #0d121b;
	--ink: #e8ecf3;
	--dim: #9aa4b5;
	--faint: #7d8798;
	--rule: rgba(255, 255, 255, 0.09);
	--rule-strong: rgba(255, 255, 255, 0.22);
	--gold: #ffc72c;
	--red: #c8102e;
	--red-edge: #e2384f;
	--sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	--mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
	--serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Songti SC", serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
	margin: 0;
	background: var(--night);
	color: var(--ink);
	font-family: var(--sans);
	font-size: 13px;
	line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* — the plate ——————————————————————————————————————————————————— */

body.plate { overflow: hidden; }

#c { display: block; width: 100%; height: 100%; }

.panel {
	position: fixed;
	top: 12px;
	left: 12px;
	width: 248px;
	padding: 12px 14px;
	border-radius: 12px;
	background: var(--panel);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	border: 1px solid var(--rule);
}

.site {
	display: flex;
	justify-content: space-between;
	gap: 10px;
	margin: -2px 0 10px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--rule);
	font-family: var(--mono);
	font-size: 10px;
	letter-spacing: 0.09em;
	text-transform: uppercase;
	color: var(--faint);
}
.site a:hover { color: var(--ink); }

.hd { display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.hd b { font-size: 15px; letter-spacing: 0.3px; flex: 1; }
.hd b i { font-style: normal; color: var(--gold); }
.hd button {
	background: rgba(255, 255, 255, 0.07);
	border: 1px solid var(--rule);
	color: #dfe5ee;
	border-radius: 6px;
	font: 12px/18px var(--sans);
	cursor: pointer;
	padding: 2px 7px;
}
#lang span { opacity: 0.45; }
#lang span.on { opacity: 1; color: var(--gold); font-weight: 700; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 10px 0; }
.stats div { background: rgba(255, 255, 255, 0.05); border-radius: 8px; padding: 6px 4px; text-align: center; }
.stats span { display: block; font-size: 20px; font-weight: 700; color: var(--gold); font-variant-numeric: tabular-nums; }
.stats small { color: var(--dim); font-size: 11px; }

.sec { color: var(--dim); font-size: 11px; margin: 8px 0 4px; letter-spacing: 1px; text-transform: uppercase; }

.btns { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.btns button {
	flex: 1 0 28%;
	background: rgba(255, 255, 255, 0.07);
	color: #dfe5ee;
	border: 1px solid var(--rule);
	border-radius: 7px;
	padding: 5px 0;
	font: 12px var(--sans);
	cursor: pointer;
}
.btns button.on { background: var(--red); border-color: var(--red-edge); color: #fff; }

.panel label { display: flex; align-items: center; gap: 6px; margin: 5px 0; cursor: pointer; }
.panel label.rng input { flex: 1; accent-color: var(--gold); }
.panel input[type="checkbox"] { accent-color: var(--red); }
.hint { color: var(--faint); font-size: 11px; margin: 8px 0 0; }

#loading {
	position: fixed;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 16px;
	background: var(--night);
	color: var(--dim);
	font-size: 14px;
	transition: opacity 0.8s;
}

body.bare .panel { display: none; }

@media (max-width: 520px) {
	.panel { width: calc(100% - 32px); left: 16px; top: 16px; }
}

/* — the case study ——————————————————————————————————————————————— */

.study { max-width: 940px; margin: 0 auto; padding: clamp(24px, 5vw, 68px) clamp(20px, 5vw, 54px) 96px; font-family: var(--mono); line-height: 1.8; }

.nav {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 24px;
	padding-bottom: 18px;
	border-bottom: 1px solid var(--rule);
	font-size: 11px;
	letter-spacing: 0.09em;
	text-transform: uppercase;
}
.nav strong { color: var(--gold); font-weight: 600; }
.nav-links { display: flex; gap: 18px; color: var(--dim); }
.nav-links a:hover { color: var(--ink); }

.study h1 {
	font-family: var(--serif);
	font-size: clamp(32px, 5.4vw, 56px);
	line-height: 1.04;
	letter-spacing: -0.015em;
	font-weight: 400;
	margin: clamp(40px, 7vw, 68px) 0 20px;
	max-width: 20ch;
}

.study .lede-block { max-width: 62ch; color: var(--dim); font-size: 14px; }
.study section { margin-top: clamp(40px, 6vw, 60px); }

.study h2 {
	font-size: 11px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	font-weight: 400;
	color: var(--dim);
	margin: 0 0 16px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--rule);
}

.study p { max-width: 68ch; margin: 0 0 16px; }
.study a { border-bottom: 1px solid var(--rule-strong); }
.study .nav a { border-bottom: 0; }
.plate-shot { display: block; width: 100%; height: auto; margin: clamp(28px, 5vw, 44px) 0 0; border: 1px solid var(--rule); }

.facts, .cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 1px;
	background: var(--rule);
	border: 1px solid var(--rule);
	margin-top: clamp(24px, 4vw, 40px);
}

.facts div, .cards article { background: var(--surface); padding: 16px 18px; }
.facts dt { color: var(--dim); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 6px; }
.facts dd { margin: 0; }
.cards article { padding: 22px 20px 24px; }
.cards h3 { font-size: 13px; font-weight: 400; margin: 0 0 10px; color: var(--gold); }
.cards p { color: var(--dim); margin: 0; }

.dims { width: 100%; max-width: 68ch; border-collapse: collapse; }
.dims th, .dims td { text-align: left; padding: 7px 0; border-bottom: 1px solid var(--rule); font-weight: 400; }
.dims th { color: var(--dim); padding-right: 24px; }
.dims td { font-variant-numeric: tabular-nums; }

.study footer {
	margin-top: clamp(48px, 8vw, 80px);
	padding-top: 18px;
	border-top: 1px solid var(--rule);
	color: var(--dim);
	font-size: 11px;
	letter-spacing: 0.09em;
	text-transform: uppercase;
}