*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
	--bg:      #1c1c1c;
	--bg2:     #252525;
	--bg3:     #2e2e2e;
	--bg4:     #383838;
	--border:  #3a3a3a;
	--border2: #484848;
	--accent:  #4e9fd4;
	--accent-dim: #2d6a8f;
	--text:    #d4d4d4;
	--muted:   #7a7a7a;
	--warn:    #c8963c;
	--sans:    Helvetica Neue, Helvetica, Arial, sans-serif;
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: var(--sans);
	font-size: 13px;
	font-weight: 400;
	min-height: 100vh;
	padding: 36px 20px 60px;
	-webkit-font-smoothing: antialiased;
}

.container { max-width: 820px; margin: 0 auto; }

header { margin-bottom: 32px; border-bottom: 1px solid var(--border); padding-bottom: 20px; }

.app-name {
	font-size: 10px;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--muted);
	margin-bottom: 8px;
}

h1 {
	font-size: 20px;
	font-weight: 300;
	color: var(--text);
	letter-spacing: 0.01em;
}

h1 strong { font-weight: 500; color: #e8e8e8; }

.subtitle {
	margin-top: 6px;
	color: var(--muted);
	font-size: 11px;
	line-height: 1.6;
	font-weight: 400;
	max-width: 560px;
}

.layout {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 2px;
	background: var(--border);
	border: 1px solid var(--border);
	border-radius: 4px;
	overflow: hidden;
	margin-bottom: 2px;
}

@media (max-width: 580px) { .layout { grid-template-columns: 1fr; } }

.panel {
	background: var(--bg2);
	padding: 18px 20px;
}

.panel-full { grid-column: 1 / -1; }

.panel-title {
	font-size: 9px;
	font-weight: 600;
	letter-spacing: 0.13em;
	text-transform: uppercase;
	color: var(--muted);
	margin-bottom: 16px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--border);
}

.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }

.field-row { display: flex; align-items: center; gap: 10px; }

label {
	display: block;
	font-size: 11px;
	color: var(--muted);
	margin-bottom: 5px;
	letter-spacing: 0.01em;
}

input[type=number], select {
	background: var(--bg3);
	border: 1px solid var(--border2);
	border-radius: 3px;
	color: var(--text);
	font-family: var(--sans);
	font-size: 13px;
	padding: 6px 9px;
	outline: none;
	transition: border-color 0.1s;
	width: 100%;
	-webkit-appearance: none;
}
input[type=number]:focus, select:focus {
	border-color: var(--accent);
}
select { cursor: pointer; }
select option { background: #2e2e2e; }

.derived {
	font-size: 13px;
	color: var(--accent);
	background: rgba(78,159,212,0.08);
	border: 1px solid rgba(78,159,212,0.2);
	border-radius: 3px;
	padding: 6px 9px;
	min-width: 88px;
	white-space: nowrap;
}

.orient-group { display: flex; gap: 0; border: 1px solid var(--border2); border-radius: 3px; overflow: hidden; }
.orient-btn {
	flex: 1; padding: 6px 10px;
	background: var(--bg3); border: none;
	color: var(--muted); font-family: var(--sans); font-size: 12px;
	cursor: pointer; transition: all 0.1s;
	display: flex; align-items: center; justify-content: center; gap: 6px;
}
.orient-btn + .orient-btn { border-left: 1px solid var(--border2); }
.orient-btn.active { background: rgba(78,159,212,0.15); color: var(--accent); }
.orient-btn svg { width: 12px; height: 12px; fill: currentColor; flex-shrink: 0; }

input[type=range] {
	flex: 1; -webkit-appearance: none; appearance: none;
	height: 3px; background: var(--bg4); border-radius: 2px;
	outline: none; cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
	-webkit-appearance: none;
	width: 14px; height: 14px; border-radius: 50%;
	background: var(--accent); border: 2px solid var(--bg2);
	cursor: pointer; transition: background 0.1s;
}
input[type=range]:hover::-webkit-slider-thumb { background: #6ab8e0; }
input[type=range]::-moz-range-thumb {
	width: 14px; height: 14px; border-radius: 50%;
	background: var(--accent); border: 2px solid var(--bg2); cursor: pointer;
}

.slider-wrap { display: flex; align-items: center; gap: 12px; }
.slider-val {
	font-size: 14px; font-weight: 500;
	color: var(--accent); min-width: 42px; text-align: right;
}

.fov-meta {
	display: flex; gap: 20px; margin-top: 8px;
}
.fov-chip { font-size: 11px; color: var(--muted); }
.fov-chip strong { color: var(--text); font-weight: 500; }

.presets { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.preset {
	padding: 3px 8px; font-family: var(--sans); font-size: 10px;
	background: var(--bg3); border: 1px solid var(--border2);
	border-radius: 3px; color: var(--muted); cursor: pointer; transition: all 0.1s;
	letter-spacing: 0.01em;
}
.preset:hover { border-color: var(--accent); color: var(--accent); }

.warn-bar {
	margin-top: 10px; padding: 6px 10px;
	background: rgba(200,150,60,0.08);
	border: 1px solid rgba(200,150,60,0.25);
	border-radius: 3px; color: var(--warn);
	font-size: 11px; display: none;
}
.warn-bar.visible { display: block; }

/* Metrics */
.metrics {
	display: grid;
	grid-template-columns: repeat(6, 1fr);
	gap: 2px;
	background: var(--border);
	border-radius: 3px;
	overflow: hidden;
	margin-bottom: 2px;
}
@media (max-width: 600px) { .metrics { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 380px) { .metrics { grid-template-columns: repeat(2, 1fr); } }

.metric {
	background: var(--bg2);
	padding: 14px 16px 12px;
	border-top: 2px solid var(--border);
}
.metric.hi { border-top-color: var(--accent); }

.metric-label {
	font-size: 9px; letter-spacing: 0.10em;
	text-transform: uppercase; color: var(--muted);
	margin-bottom: 8px;
}
.metric-value {
	font-size: 20px; font-weight: 300;
	color: var(--text); line-height: 1;
	letter-spacing: -0.01em;
}
.metric.hi .metric-value { color: var(--accent); font-weight: 400; }
.metric-sub { font-size: 10px; color: var(--muted); margin-top: 5px; }

/* Preview */
.preview-wrap {
	background: var(--bg2);
	border: 1px solid var(--border);
	border-radius: 4px;
	padding: 18px 20px;
	margin-bottom: 2px;
}

.preview-title {
	font-size: 9px; font-weight: 600;
	letter-spacing: 0.13em; text-transform: uppercase;
	color: var(--muted); margin-bottom: 12px;
	padding-bottom: 8px; border-bottom: 1px solid var(--border);
}

canvas {
	display: block; width: 100%; height: auto;
	border-radius: 3px; border: 1px solid var(--border);
}

.preview-meta {
	display: flex; justify-content: space-between;
	flex-wrap: wrap; gap: 8px; margin-top: 10px;
}
.meta-item { font-size: 10px; color: var(--muted); }
.meta-item span { color: var(--text); }

footer {
	margin-top: 28px; text-align: center;
	font-size: 10px; color: #4a4a4a;
	letter-spacing: 0.06em;
}