:root {
	color-scheme: dark;
	--bg: #0a0a0a;
	--panel: #171717;
	--border: #292929;
	--text: #f5f5f5;
	--muted: #a3a3a3;
	--accent: #f97316;
	--safe: #22c55e;
	--warn: #f59e0b;
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
	background: var(--bg);
	color: var(--text);
	line-height: 1.5;
}

header, main, footer {
	max-width: 720px;
	margin: 0 auto;
	padding: 24px;
}

header h1 { margin-bottom: 4px; font-size: 1.8rem; }
.subtitle { color: var(--muted); margin: 0 0 12px; }
.privacy {
	background: #1e293b;
	border: 1px solid #334155;
	border-radius: 10px;
	padding: 10px 14px;
	font-size: 0.9rem;
	color: #cbd5e1;
}

.target-select {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	align-items: center;
	margin: 24px 0;
	padding: 14px;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 10px;
}
.target-select label { display: flex; gap: 6px; align-items: center; font-size: 0.95rem; }

.subject-row {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 16px;
	margin-bottom: 12px;
}
.subject-row h3 { margin: 0 0 10px; font-size: 1.05rem; }
.subject-row .total { color: var(--muted); font-weight: normal; font-size: 0.85rem; }
.subject-row label {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 12px;
	margin: 8px 0;
	font-size: 0.9rem;
	color: var(--muted);
}
.subject-row input {
	width: 100px;
	padding: 6px 8px;
	border-radius: 6px;
	border: 1px solid var(--border);
	background: #0d0d0d;
	color: var(--text);
	font-size: 0.95rem;
}

.data-status {
	font-size: 0.85rem;
	color: var(--muted);
	text-align: center;
}

#calc-btn {
	display: block;
	width: 100%;
	padding: 14px;
	margin: 16px 0 28px;
	border: none;
	border-radius: 999px;
	background: var(--accent);
	color: #0a0a0a;
	font-weight: 700;
	font-size: 1rem;
	cursor: pointer;
}
#calc-btn:disabled { opacity: 0.6; cursor: wait; }
#calc-btn:hover:not(:disabled) { background: #fb923c; }

.as-of { color: var(--muted); font-size: 0.85rem; margin-bottom: 16px; }
.as-of strong { color: var(--accent); }

.subject-result {
	border-radius: 12px;
	padding: 16px;
	margin-bottom: 12px;
	border: 1px solid var(--border);
}
.subject-result.is-safe { border-color: rgba(34, 197, 94, 0.4); background: rgba(34, 197, 94, 0.06); }
.subject-result.is-warn { border-color: rgba(245, 158, 11, 0.3); background: rgba(245, 158, 11, 0.05); }
.subject-result h3 { margin: 0 0 6px; }
.conducted { color: var(--muted); font-size: 0.85rem; margin: 2px 0 8px; }
.safe { color: var(--safe); }
.safe-date strong { color: var(--accent); }
.cannot { color: #ef4444; }
.dates { margin-top: 10px; font-size: 0.9rem; }
.dates ul { margin: 6px 0 0; padding-left: 18px; }
.dates .warn { color: var(--warn); }

.footer-note { text-align: center; color: var(--muted); margin-top: 8px; }

footer { color: var(--muted); font-size: 0.85rem; text-align: center; }