:root {
	--pico-font-family: "Source Sans 3", system-ui, -apple-system, sans-serif;
	--pico-font-size: 100%;

	/* Farbwelt 1:1 aus den CSS-Variablen von www.atemtrainer.org */
	--bg: #F7F5F2;
	--surface: #FFFFFF;
	--surface-alt: #EDF4F7;
	--ink: #2A3A45;
	--ink-soft: #5A6B75;
	--brand: #008BC5;
	--brand-btn: #0077A6;
	--brand-deep: #0A5E85;
	--border: #E5E2DC;

	--pico-primary: var(--brand);
	--pico-primary-background: var(--brand-btn);
	--pico-primary-hover-background: var(--brand-deep);
	--pico-primary-underline: var(--brand);
	--pico-color: var(--ink);
	--pico-h1-color: var(--ink);
	--pico-border-radius: 1rem;
}

h1, h2, h3 {
	font-family: "Lora", Georgia, serif;
	font-weight: 600;
	color: var(--ink);
}

body {
	background: var(--bg);
	color: var(--ink);
}

/* Kopfzeile mit Logo, wie im Header von www.atemtrainer.org */
.app-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.85rem 1.25rem;
	background: var(--surface);
	border-bottom: 1px solid var(--border);
}

.app-header .brand {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	text-decoration: none;
}

.app-header .brand-text {
	display: flex;
	flex-direction: column;
	line-height: 1.15;
}

.app-header .brand-word {
	font-family: "Lora", Georgia, serif;
	font-weight: 600;
	font-size: 1.2rem;
	color: var(--brand-deep);
}

.app-header .brand-word .accent {
	color: var(--brand);
}

.app-header .brand-name {
	font-size: 0.65rem;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--ink-soft);
}

.app-header .abmelden-link {
	font-size: 0.8rem;
	color: var(--ink-soft);
}

/* Prominente Tab-Navigation direkt unter dem Header, bleibt beim Scrollen sichtbar */
nav.top-nav {
	position: sticky;
	top: 0;
	z-index: 20;
	display: flex;
	background: var(--surface);
	border-bottom: 1px solid var(--border);
}

nav.top-nav button {
	flex: 1;
	background: none !important;
	border: none;
	border-bottom: 3px solid transparent;
	color: var(--ink-soft);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.25rem;
	font-size: 0.8rem;
	font-weight: 600;
	padding: 0.75rem 0.25rem 0.6rem;
	border-radius: 0 !important;
}

nav.top-nav button.aktiv {
	color: var(--brand-deep);
	border-bottom-color: var(--brand);
}

nav.top-nav svg {
	width: 22px;
	height: 22px;
}

main.app-screen {
	padding: 1.25rem 1.25rem 2rem;
	max-width: 640px;
	margin: 0 auto;
}

/* Zweispaltige Wochen-Karten auf breiten Bildschirmen */
.wochen-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1rem;
	align-items: start;
}

@media (min-width: 860px) {
	main.app-screen:has(.wochen-grid) {
		max-width: 1040px;
	}

	.wochen-grid {
		grid-template-columns: 1fr 1fr;
	}

	.wochen-grid .karte {
		margin-bottom: 0;
	}
}

.karte {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 1.25rem;
	padding: 1.25rem;
	margin-bottom: 1rem;
	box-shadow: 0 2px 10px rgba(0, 60, 90, 0.04);
}

.uebung-zeile {
	display: flex;
	align-items: center;
	gap: 0.9rem;
	padding: 0.9rem 0;
	border-bottom: 1px solid var(--border);
}

.uebung-zeile:last-child {
	border-bottom: none;
}

.uebung-zeile.erledigt {
	background: var(--surface-alt);
	border-radius: 0.75rem;
	margin: 0 -0.5rem;
	padding-left: 0.5rem;
	padding-right: 0.5rem;
}

.uebung-zeile .uebung-info {
	flex-grow: 1;
	cursor: pointer;
}

.erledigt-btn {
	flex-shrink: 0;
	margin: 0 !important;
	padding: 0.4rem 0.9rem !important;
	font-size: 0.75rem !important;
	font-weight: 600;
	background: var(--surface) !important;
	color: var(--brand-deep) !important;
	border: 1px solid var(--brand) !important;
	white-space: nowrap;
}

.erledigt-btn:disabled {
	background: var(--surface-alt) !important;
	color: var(--ink-soft) !important;
	border-color: var(--border) !important;
	opacity: 1;
}

.uebung-titel {
	font-weight: 600;
	display: block;
}

.uebung-meta {
	color: var(--ink-soft);
	font-size: 0.85rem;
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
}


.pill {
	display: inline-block;
	font-size: 0.75rem;
	padding: 0.15rem 0.6rem;
	border-radius: 999px;
	background: var(--surface-alt);
	color: var(--brand-deep);
	font-weight: 600;
	letter-spacing: 0.02em;
}

button, [type="submit"], [role="button"] {
	border-radius: 999px !important;
}

/* Schlichte Fusszeile, angelehnt an den Footer von www.atemtrainer.org */
footer.app-footer {
	text-align: center;
	padding: 1.75rem 1rem calc(1.75rem + env(safe-area-inset-bottom));
	margin-top: 1.5rem;
	background: var(--surface-alt);
	color: var(--ink-soft);
	font-size: 0.8rem;
}

.login-screen {
	max-width: 420px;
	margin: 3rem auto;
	padding: 0 1.25rem;
	text-align: center;
}

.zentriert {
	text-align: center;
}

.leise {
	color: var(--ink-soft);
}

#kontrollpause-chart {
	max-height: 220px;
}