:root {
	font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	color-scheme: light dark;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	background: radial-gradient(circle at top, #0f172a, #020617 60%);
	color: #f8fafc;
}

.call-container {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 1.25rem;
	padding: 2rem;
	text-align: center;
}

.call-button {
	width: 220px;
	height: 220px;
	border-radius: 50%;
	border: none;
	background: linear-gradient(135deg, #22d3ee, #6366f1);
	color: #0f172a;
	font-size: 1.25rem;
	font-weight: 700;
	cursor: pointer;
	box-shadow: 0 25px 65px rgba(79, 70, 229, 0.5);
	transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.call-button:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.call-button.is-active {
	background: linear-gradient(135deg, #f87171, #fb7185);
	color: #fff;
	box-shadow: 0 25px 65px rgba(248, 113, 113, 0.5);
}

.call-button:active:not(:disabled) {
	transform: scale(0.98);
}

.status-text {
	font-size: 1rem;
	color: #cbd5f5;
	min-height: 1.5rem;
}

.duration-text {
	font-size: 1.5rem;
	font-weight: 600;
	color: #f8fafc;
	letter-spacing: 0.05em;
	min-height: 1.5rem;
}