: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;
	}
}

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

/* ===== Academy theme ===== */
:root,
:root:root {
	color-scheme: light;
	--bg: #fffbf3;
	--surface: #ffffff;
	--fg: #1f2a37;
	--muted: #667085;
	--accent: #0f766e;
	--accent-2: #f59e0b;
	--soft: #e6f4f1;
	--border: #efe6d6;
	--danger: #c2410c;
	--radius: 16px;
	--shadow: 0 6px 24px rgba(15, 118, 110, 0.08);
	--font: "Tajawal", system-ui, sans-serif;
}
body { background: var(--bg); direction: rtl; font-size: 1.05rem; }
.dash-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin: 8px 0 16px; }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.small { font-size: .85rem; color: #64748b; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stats > * { background: #fff; border-radius: 16px; padding: 14px; box-shadow: 0 2px 10px rgba(15,118,110,.08); text-align: center; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tab { border: 2px solid #0f766e; background: #fff; color: #0f766e; border-radius: 999px; padding: 8px 16px; font: inherit; cursor: pointer; }
.tab.active, .tab[aria-selected="true"] { background: #0f766e; color: #fff; }
.alert-ok { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; padding: 10px 14px; border-radius: 12px; }
.good { color: #047857; font-weight: 700; }
.low { color: #b91c1c; font-weight: 700; }
.subject-pill { display: inline-block; background: #fef3c7; color: #92400e; border-radius: 999px; padding: 2px 10px; font-size: .8rem; }
.qbox { border: 1px dashed #99c9c4; border-radius: 14px; padding: 12px; display: grid; gap: 8px; }
.opt { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid #e2e8f0; border-radius: 10px; cursor: pointer; background: #fff; }
.opt.right { border-color: #10b981; background: #ecfdf5; }
.opt.wrong { border-color: #ef4444; background: #fef2f2; }
.hero-text { display: grid; gap: 12px; }
h1, h2, h3 { letter-spacing: 0; line-height: 1.3; }
h2 { margin: 1.5rem 0 0; font-size: 1.45rem; display: flex; align-items: center; gap: .5rem; }
h2::before { content: ""; width: 8px; height: 1.4rem; border-radius: 4px; background: var(--accent-2); }
h3 { margin: 0 0 .35rem; }
a { color: var(--accent); }
.table th, .table td { text-align: right; }
.alert { border-left: 1px solid var(--border); border-right: 4px solid var(--muted); }
.alert-error { border-right-color: var(--danger); }

.btn { border-radius: 999px; padding: .6rem 1.2rem; font-weight: 700; text-decoration: none; transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(15, 118, 110, .25); }
.btn:disabled { opacity: .6; cursor: default; transform: none; }
.btn-secondary { background: var(--surface); color: var(--accent); border: 2px solid var(--soft); }
.btn-lg { padding: .85rem 1.6rem; font-size: 1.1rem; }
.card, .list-item { background: var(--surface); border-color: var(--border); box-shadow: var(--shadow); }
.input, .select, .textarea { background: var(--surface); border: 2px solid var(--border); border-radius: 12px; padding: .7rem .85rem; }
.input:focus { border-color: var(--accent); outline: none; }
.badge { background: var(--soft); color: var(--accent); border: 0; font-weight: 700; }

.topbar { position: sticky; top: 0; z-index: 10; background: rgba(255, 251, 243, .9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.topbar-in { max-width: 64rem; margin: 0 auto; padding: .6rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--fg); text-decoration: none; }
.brand-text { display: grid; line-height: 1.15; }
.brand-text b { font-size: 1.15rem; font-weight: 800; }
.brand-text small { color: var(--accent-2); font-weight: 700; font-size: .8rem; }
.logo-svg { flex: none; display: block; }
.nav { gap: .4rem; }
.nav > a:not(.btn) { color: var(--fg); text-decoration: none; padding: .45rem .8rem; border-radius: 999px; font-weight: 500; }
.nav > a:not(.btn):hover { background: var(--soft); color: var(--accent); }

.shell { padding-top: 1.5rem; }
.hero { display: grid; gap: 1.5rem; align-items: center; padding: 1.75rem 1.25rem; border-radius: 28px;
	background: linear-gradient(135deg, #e6f4f1 0%, #fff7e6 100%); }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 800; }
.hl { color: var(--accent); background: linear-gradient(transparent 62%, #fde68a 62%); }
.eyebrow { display: inline-block; margin-bottom: .6rem; padding: .25rem .8rem; border-radius: 999px; background: #fff; color: var(--accent); font-weight: 700; font-size: .85rem; }
.hero-art { position: relative; display: grid; place-items: center; min-height: 220px; }
.blob { position: absolute; width: 210px; height: 210px; border-radius: 42% 58% 55% 45%; background: #fde68a; opacity: .55; }
.hero-art .logo-svg { position: relative; filter: drop-shadow(0 16px 24px rgba(15, 118, 110, .3)); }
.chip { position: absolute; background: #fff; padding: .35rem .75rem; border-radius: 999px; font-size: .85rem; font-weight: 700; box-shadow: var(--shadow); }
.c1 { top: 8%; right: 4%; } .c2 { bottom: 10%; right: 10%; } .c3 { top: 42%; left: 2%; }
@media (min-width: 48rem) { .hero { grid-template-columns: 1.3fr 1fr; padding: 2.75rem; } }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(10rem, 100%), 1fr)); gap: .75rem; }
.features div { display: grid; gap: .15rem; padding: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.features span { font-size: 1.6rem; }
.features small { color: var(--muted); }

.subject-card { border-top: 6px solid var(--accent); }
.auth { max-width: 28rem; width: 100%; margin: 1rem auto; padding: 1.75rem; }
.kind-pick { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.kind-pick button { padding: .9rem; border: 2px solid var(--border); border-radius: 14px; background: var(--surface); font: inherit; font-weight: 700; cursor: pointer; }
.kind-pick button.on { border-color: var(--accent); background: var(--soft); color: var(--accent); }

.footer { display: flex; align-items: center; justify-content: center; gap: .5rem; padding: 1.5rem 1rem 2rem; color: var(--muted); }