:root {
	--bg: #0b0e17;
	--panel: #141926;
	--panel-2: #1b2233;
	--line: #2a3348;
	--text: #e8ecf5;
	--dim: #97a1b8;
	--moon: #f3d9a4;
	--accent: #8cc9ff;
	--warn: #ffc76b;
	--bad: #ff8a8a;
	--good: #7ee2b0;
}

* { box-sizing: border-box; }

/* The hidden attribute must always win. Without this, any element that both
   toggles `hidden` and has an author display rule (.demo-panel is display:flex)
   can never be hidden again once shown: author declarations beat the UA's
   [hidden] { display: none } in the cascade, so the demo panel stayed painted
   over photo measurements while the JS believed it was closed. */
[hidden] { display: none !important; }

body {
	margin: 0;
	background: radial-gradient(1200px 700px at 70% -10%, #16203a 0%, var(--bg) 60%);
	color: var(--text);
	font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	min-height: 100vh;
}

header, main, .explain, footer {
	max-width: 900px;
	margin: 0 auto;
	padding: 0 20px;
}

header { padding-top: 40px; }

h1 {
	margin: 0 0 8px;
	font-size: 2rem;
	letter-spacing: -0.02em;
}

.tagline { color: var(--dim); margin: 0 0 28px; max-width: 62ch; }

/* ---- stage ---- */

.viewport {
	position: relative;
	background: #05070d;
	border: 1px solid var(--line);
	border-radius: 14px;
	overflow: hidden;
	aspect-ratio: 4 / 3;
	display: grid;
	place-items: center;
}

#view { max-width: 100%; max-height: 100%; display: block; }

/* The camera feed is never shown directly — frames are drawn onto the canvas
   with the model on top. It stays in the render tree at 1px rather than
   display:none, because iOS Safari will not decode frames from a hidden
   video and drawImage then silently yields nothing. */
#cam {
	position: absolute;
	width: 1px;
	height: 1px;
	opacity: 0;
	pointer-events: none;
}

.placeholder { text-align: center; color: var(--dim); padding: 20px; }
.placeholder p { margin: 4px 0; }
.placeholder .sub { font-size: 0.9rem; opacity: 0.75; }

.badge {
	position: absolute;
	top: 12px; left: 12px;
	background: rgba(255, 90, 90, 0.9);
	color: #fff;
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	padding: 3px 8px;
	border-radius: 4px;
}

.controls {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin: 14px 0;
}

button, .filebtn {
	font: inherit;
	font-size: 0.95rem;
	background: var(--panel-2);
	color: var(--text);
	border: 1px solid var(--line);
	border-radius: 9px;
	padding: 9px 16px;
	cursor: pointer;
}

button:hover, .filebtn:hover { background: #232c42; }
button.primary { background: var(--accent); color: #06203a; border-color: transparent; font-weight: 600; }
button.primary:hover { background: #a5d6ff; }
.filebtn input { display: none; }

.layers, .demo-panel {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
	color: var(--dim);
	font-size: 0.9rem;
	margin-bottom: 8px;
}

.demo-panel {
	flex-direction: column;
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 10px;
	padding: 12px 14px;
	margin-bottom: 12px;
}

.demo-panel label { display: flex; align-items: center; gap: 10px; }
.demo-panel input[type=range] { flex: 1; max-width: 300px; }
.demo-panel span { min-width: 60px; font-variant-numeric: tabular-nums; }
.demo-note { margin: 4px 0 0; font-size: 0.85rem; opacity: 0.8; }

/* ---- readout ---- */

.readout {
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 14px;
	padding: 22px;
	margin: 26px 0;
}

.headline { text-align: center; margin-bottom: 22px; }

.pct {
	font-size: clamp(2.6rem, 11vw, 4.2rem);
	font-weight: 700;
	line-height: 1.05;
	letter-spacing: -0.03em;
	color: var(--moon);
	font-variant-numeric: tabular-nums;
}

.pm { font-size: 0.34em; font-weight: 500; color: var(--dim); margin-left: 10px; letter-spacing: 0; }
.shape { color: var(--dim); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; }
.truth { margin-top: 10px; font-size: 0.9rem; color: var(--good); }
.truth.off { color: var(--warn); }

.rows { display: flex; flex-direction: column; }

.row {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	padding: 7px 0;
	border-bottom: 1px solid var(--line);
	font-size: 0.92rem;
}

.row:last-child { border-bottom: 0; }
.row .lbl { color: var(--dim); }
.row .lbl em { font-style: normal; opacity: 0.6; }
.row .val { font-variant-numeric: tabular-nums; white-space: nowrap; }

h3 { margin: 24px 0 10px; font-size: 0.95rem; letter-spacing: 0.02em; }

.bar-row { margin-bottom: 12px; }
.bar-head { display: flex; justify-content: space-between; font-size: 0.9rem; }
.bar-head .v { font-variant-numeric: tabular-nums; color: var(--moon); }

.bar {
	height: 7px;
	background: var(--panel-2);
	border-radius: 4px;
	overflow: hidden;
	margin: 5px 0 3px;
}

.bar > i { display: block; height: 100%; background: linear-gradient(90deg, #5aa9ea, #8cc9ff); }
.bar-detail { font-size: 0.78rem; color: var(--dim); }
.budget-total { font-size: 0.9rem; color: var(--dim); }
.budget-note { font-size: 0.78rem; color: var(--dim); opacity: 0.75; margin-top: -4px; }

.warnings { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }

.note {
	border-left: 3px solid var(--warn);
	background: rgba(255, 199, 107, 0.07);
	padding: 8px 12px;
	border-radius: 0 8px 8px 0;
	font-size: 0.88rem;
}

.note.bad { border-color: var(--bad); background: rgba(255, 138, 138, 0.08); }

.diag { margin-top: 16px; color: var(--dim); font-size: 0.88rem; }
.diag summary { cursor: pointer; }

/* ---- explainer ---- */

.explain { padding-bottom: 40px; }
.explain h2 { margin-top: 40px; font-size: 1.4rem; }
.explain h3 { margin-top: 28px; font-size: 1.05rem; color: var(--moon); letter-spacing: 0; }
.explain p, .explain li, .explain dd { color: #c8d1e4; }
.explain dt { font-weight: 600; margin-top: 12px; }
.explain dd { margin: 2px 0 0 0; padding-left: 0; }
.explain em { color: var(--text); }

table.bias {
	border-collapse: collapse;
	width: 100%;
	font-size: 0.84rem;
	font-variant-numeric: tabular-nums;
	margin: 14px 0;
}

table.bias th, table.bias td {
	border: 1px solid var(--line);
	padding: 6px 8px;
	text-align: right;
}

table.bias th { text-align: left; color: var(--dim); font-weight: 500; white-space: nowrap; }
table.bias tr:last-child td { color: var(--warn); }

.privacy { font-size: 0.88rem; color: var(--dim); border-top: 1px solid var(--line); padding-top: 16px; margin-top: 26px; }

footer {
	color: var(--dim);
	font-size: 0.82rem;
	padding-bottom: 40px;
	border-top: 1px solid var(--line);
	padding-top: 16px;
}

@media (max-width: 560px) {
	header { padding-top: 24px; }
	h1 { font-size: 1.6rem; }
	.readout { padding: 16px; }
	.controls button, .controls .filebtn { flex: 1 1 auto; text-align: center; }
}