: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;
	}
}

body { background: #f2f3f7; }
@media (prefers-color-scheme: dark) { body { background: #07080c; } .card { background: #12141b; } }
.top { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center;
	padding: 0.8rem 1rem; background: linear-gradient(90deg, #ff3d6e, #7c4dff); color: #fff; }
.logo { font-weight: 900; font-size: 1.4rem; letter-spacing: -0.03em; }
.logo span { background: #fff; color: #ff3d6e; padding: 0 0.35rem; border-radius: 6px; margin-left: 2px; }
.live-dot { font-size: 0.8rem; font-weight: 600; }
.feed { max-width: 36rem; margin: 0 auto; padding: 0.8rem; display: grid; gap: 0.8rem; grid-template-columns: minmax(0,1fr); }
.card { border-radius: 16px; display: grid; gap: 0.7rem; }
.btn { background: linear-gradient(90deg, #ff3d6e, #7c4dff); border-radius: 999px; }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn-secondary { background: transparent; }
.avatar { flex: none; display: inline-grid; place-items: center; border-radius: 50%; color: #fff; font-weight: 700; }
.row.nowrap { flex-wrap: nowrap; }
.row.tight { gap: 0.4rem; }
.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.err { color: var(--danger); margin: 0; }
.textarea { resize: vertical; border-radius: 12px; }
.chip { cursor: pointer; padding: 0.35rem 0.75rem; border-radius: 999px; background: rgba(124,77,255,0.1); font-size: 0.85rem; font-weight: 600; }
.post-img { width: 100%; max-height: 420px; object-fit: cover; border-radius: 12px; }
.file { padding: 0.7rem; border-radius: 10px; border: 1px dashed var(--border); font-weight: 600; word-break: break-all; }
.text { margin: 0; white-space: pre-wrap; }
.pinned { border: 2px solid #ff9f1c; }
.pin { font-size: 0.8rem; font-weight: 700; color: #e08600; }
.link { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; font-weight: 600; cursor: pointer; font-size: 0.82rem; }
.link.on, .actions .on { color: #ff3d6e; }
.link.danger { color: var(--danger); }
.actions { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--border); padding-top: 0.4rem; }
.actions button { background: none; border: 0; padding: 0.5rem 0.1rem; border-radius: 8px; color: var(--muted); font: inherit; font-size: 0.82rem; font-weight: 600; cursor: pointer; }
.actions button:hover { background: rgba(124,77,255,0.08); }
.reacts { display: flex; gap: 0.3rem; padding: 0.35rem; border-radius: 999px; box-shadow: 0 4px 18px rgba(0,0,0,0.15); width: fit-content; max-width: 100%; flex-wrap: wrap; }
.reacts button { font-size: 1.5rem; background: none; border: 0; cursor: pointer; transition: transform 0.15s; border-radius: 50%; }
.reacts button:hover, .reacts .on { transform: scale(1.3); }
.comments { display: grid; gap: 0.6rem; }
.comment { display: flex; gap: 0.5rem; }
.bubble-wrap { min-width: 0; }
.bubble { background: rgba(127,127,127,0.12); padding: 0.45rem 0.75rem; border-radius: 14px; font-size: 0.9rem; }
.replies { margin-left: 2.4rem; display: grid; gap: 0.5rem; margin-top: 0.4rem; }
.toast { font-size: 0.82rem; color: #2ec4b6; font-weight: 600; }
.stack-s { display: grid; gap: 0.5rem; }

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