:root {
	color-scheme: light dark;
	--bg: #ffffff;
	--fg: #0b0d12;
	--muted: #5b6472;
	--accent: #2f6df6;
	--border: #e4e7ec;
	--danger: #b42318;
	--radius: 10px;
	--space: 1rem;
	--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #0b0d12;
		--fg: #f4f6fa;
		--muted: #9aa4b2;
		--accent: #6f9bff;
		--border: #232833;
		--danger: #ff9a8f;
	}
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--fg);
	font-family: var(--font);
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
}

.shell {
	max-width: 42rem;
	margin: 0 auto;
	padding: calc(var(--space) * 3) var(--space);
}

h1 {
	margin: 0 0 0.5rem;
	font-size: clamp(1.6rem, 4vw, 2.25rem);
	letter-spacing: -0.02em;
}

.lede {
	margin: 0 0 0.75rem;
	font-size: 1.05rem;
}

.hint {
	margin: 0;
	color: var(--muted);
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.55rem 0.9rem;
	border: 1px solid transparent;
	border-radius: var(--radius);
	background: var(--accent);
	color: #fff;
	font: inherit;
	font-weight: 500;
	cursor: pointer;
}

.btn:hover {
	filter: brightness(1.05);
}

.btn-secondary {
	background: transparent;
	color: var(--fg);
	border-color: var(--border);
}

.card {
	padding: var(--space);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: var(--bg);
}

.input,
.select,
.textarea {
	width: 100%;
	padding: 0.55rem 0.7rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: var(--bg);
	color: var(--fg);
	font: inherit;
}

.field {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 0.35rem;
	margin-bottom: var(--space);
}

.field > label {
	font-size: 0.875rem;
	color: var(--muted);
}

/*
 * 390px-safe, like .grid below. A grid with no column list gets one implicit
 * auto column, and an auto column is never narrower than its widest item's
 * min-content width. One nowrap scrolling strip (days, time slots) anywhere
 * inside an item therefore widened the whole column past the screen: the page
 * scrolled sideways instead of the strip scrolling on its own. minmax(0, 1fr)
 * caps the column at the container; the min-width rule keeps a child from
 * bringing the same floor back if an app redefines the columns. :where() adds
 * no specificity, so a min-width the app sets on a child still wins.
 */
.stack {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: var(--space);
}

:where(.field, .stack, .list) > * {
	min-width: 0;
}

.row {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	flex-wrap: wrap;
}

/*
 * 390px-safe. An unclamped minmax track overflows a 390px viewport once the
 * shell padding is subtracted, and nothing in the pipeline ever looked at a
 * phone-width layout, so every generated app inherited the horizontal scroll.
 * min() clamps the track to the container instead.
 */
.grid {
	display: grid;
	gap: var(--space);
	grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
}

.list {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 0.5rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.list-item {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	flex-wrap: wrap;
	padding: 0.7rem 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
}

.table {
	width: 100%;
	border-collapse: collapse;
}

.table th,
.table td {
	padding: 0.6rem 0.5rem;
	text-align: left;
	border-bottom: 1px solid var(--border);
}

.table th {
	font-size: 0.8125rem;
	color: var(--muted);
	font-weight: 600;
}

.empty {
	padding: calc(var(--space) * 2);
	text-align: center;
	color: var(--muted);
}

.empty-title {
	margin: 0 0 0.25rem;
	color: var(--fg);
	font-weight: 600;
}

/* Loading. Every fetch has one; without a primitive each app invented its own. */
.loading {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.6rem;
	padding: calc(var(--space) * 1.5);
	color: var(--muted);
}

.spinner {
	flex: none;
	width: 1.15rem;
	height: 1.15rem;
	border: 2px solid var(--border);
	border-top-color: var(--accent);
	border-radius: 50%;
	animation: fab-spin 0.7s linear infinite;
}

@keyframes fab-spin {
	to {
		transform: rotate(360deg);
	}
}

/* Placeholder for content whose shape is known before its data arrives. */
.skeleton {
	display: block;
	height: 1rem;
	border-radius: calc(var(--radius) / 2);
	background: linear-gradient(90deg, var(--border), transparent, var(--border));
	background-size: 200% 100%;
	animation: fab-shimmer 1.2s linear infinite;
}

@keyframes fab-shimmer {
	to {
		background-position: -200% 0;
	}
}

/* Error strip: a failure the user can see and retry, never a silent no-op. */
.alert {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	flex-wrap: wrap;
	padding: 0.7rem 0.85rem;
	border: 1px solid var(--border);
	border-left: 3px solid var(--muted);
	border-radius: var(--radius);
}

.alert-error {
	border-left-color: var(--danger);
	color: var(--danger);
}

.badge {
	display: inline-block;
	padding: 0.1rem 0.5rem;
	border: 1px solid var(--border);
	border-radius: 999px;
	font-size: 0.8125rem;
	color: var(--muted);
}

/*
 * The scaffold had exactly one @media rule (prefers-color-scheme) and no width
 * breakpoint at all, so the shell was a 42rem column at every size.
 * Mobile-first stays the default; these only widen it.
 */
@media (min-width: 48rem) {
	.shell {
		max-width: 52rem;
		padding: calc(var(--space) * 3) calc(var(--space) * 1.5);
	}
}

@media (min-width: 64rem) {
	.shell {
		max-width: 64rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.spinner,
	.skeleton {
		animation: none;
	}
}

:root { color-scheme: light; --bg:#fff; --fg:#0b1b33; --muted:#4a5b75; --accent:#0b5ed7; --border:#d6e2f3; }
body { background:#f3f7fd; font-size:17px; }
.big { font-size:1.2em; }
h2 { font-size:1.2rem; margin:.3rem 0 .6rem; } h3 { margin:.4rem 0; }
.top { background:#0b3d91; color:#fff; position:sticky; top:0; z-index:5; }
.top-in { display:flex; justify-content:space-between; align-items:center; gap:.5rem; padding:.6rem 1rem; max-width:64rem; margin:auto; flex-wrap:wrap; }
.brand { display:flex; gap:.6rem; align-items:center; background:none; border:0; color:#fff; cursor:pointer; text-align:left; font:inherit; }
.brand b { display:block; font-size:1.15rem; } .brand small { opacity:.85; font-size:.75rem; }
.top .btn-secondary { color:#fff; border-color:#7fb3ff; }
.btn-sm { padding:.35rem .7rem; font-size:.9rem; text-decoration:none; }
.btn-light { background:#fff; color:#0b3d91; }
.nav { display:flex; gap:.25rem; overflow-x:auto; padding:0 .75rem .5rem; max-width:64rem; margin:auto; }
.nav button { flex:none; background:transparent; color:#dce9ff; border:0; padding:.45rem .7rem; border-radius:8px; font:inherit; font-size:.92rem; cursor:pointer; }
.nav button.on { background:#fff; color:#0b3d91; font-weight:600; }
.hero { background:linear-gradient(135deg,#0b3d91,#1f6fe0); color:#fff; padding:2rem 1.4rem; border-radius:16px; }
.hero .eyebrow { text-transform:uppercase; letter-spacing:.1em; font-size:.8rem; opacity:.85; margin:0 0 .5rem; }
.card { box-shadow:0 1px 3px rgba(11,61,145,.08); border-radius:14px; }
.tile { display:flex; flex-direction:column; gap:.3rem; text-align:left; cursor:pointer; font:inherit; color:var(--fg); }
.tile:hover { border-color:var(--accent); }
.ico { font-size:1.8rem; }
.prog { position:relative; display:inline-flex; align-items:center; justify-content:flex-end; min-width:8rem; height:1.4rem; background:#e3ecfa; border-radius:99px; padding:0 .5rem; font-size:.8rem; font-weight:600; overflow:hidden; }
.prog i { position:absolute; left:0; top:0; bottom:0; background:#7fb3ff; z-index:0; }
.prog.wide { display:flex; width:100%; }
.prog { isolation:isolate; } .prog i { z-index:-1; }
.alert { background:#eaf2ff; color:var(--fg); margin:0; border-left-color:var(--accent); }
.alert.warn { background:#fff6e0; border-left-color:#b7791f; display:block; }
.alert.ok { background:#e7f7ee; border-left-color:#1e7d46; }
.chip { border:1px solid var(--border); background:#fff; border-radius:99px; padding:.35rem .8rem; font:inherit; font-size:.9rem; cursor:pointer; color:var(--fg); }
.chip.on { background:var(--accent); color:#fff; border-color:var(--accent); }
.nowrap { flex-wrap:nowrap; }
.scene p { margin:.4rem 0; }
.pre { white-space:pre-wrap; font-size:.85rem; overflow-x:auto; }
.opt { display:flex; gap:.5rem; align-items:center; padding:.5rem; border-radius:8px; margin:.25rem 0; border:1px solid var(--border); }
.opt.good { background:#e7f7ee; border-color:#1e7d46; } .opt.bad { background:#fdecea; border-color:#b42318; }
.fb { margin:.5rem 0 0; font-weight:500; }
fieldset.card { margin:0; }
.foot { text-align:center; color:var(--muted); font-size:.85rem; padding:2rem 1rem; }

:where(a, button, input, select, textarea):focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}