development-ib-fork/web/13/eigene_loesungen/Aufgabe_02.css

:root {
	font-family: "Sansation", sans-serif;
	font-size: 16px;
	color-scheme: dark;
	--bg: #0b1220;
	--panel: rgba(94, 39, 27, 0.96);
	--panel-border: rgba(17, 224, 103, 0.18);
	--accent: #409720;
	--accent-strong: #988fa8;
	--muted: #94a3b8;
}

* {
	box-sizing: border-box;
}

html, body {
	min-height: 100%;
}

body {
	margin: 0;
	padding: 2rem;
	background: radial-gradient(circle at top left, rgba(139, 92, 246, 0.22), transparent 24%),
		linear-gradient(180deg, #b05d54 0%, #83aa93 40%, #7989af 100%);
	color: #e2e8f0;
}

body::before {
	content: "";
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	pointer-events: none;
	background-image: radial-gradient(circle at 20% 15%, rgba(83, 186, 24, 0.12) 0, transparent 32%),
		radial-gradient(circle at 80% 10%, rgba(34, 197, 94, 0.08) 0, transparent 30%),
		radial-gradient(circle at 50% 80%, rgba(14, 165, 233, 0.07) 0, transparent 28%);
}

h1 {
	margin: 0 0 1.5rem;
	font-size: clamp(2rem, 4vw, 3rem);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	text-align: center;
	color: #f8fafc;
	text-shadow: 0 0 18px rgba(139, 92, 246, 0.35);
}

form {
	max-width: 640px;
	margin: 0 auto;
	padding: 2rem;
	background: var(--panel);
	border: 1px solid var(--panel-border);
	border-radius: 26px;
	backdrop-filter: blur(12px);
	box-shadow: 0 18px 55px rgba(0, 0, 0, 0.35);
}

fieldset {
	border: 1px solid rgba(148, 163, 184, 0.18);
	border-radius: 18px;
	padding: 1.5rem;
	margin: 0 0 1.5rem;
	background: rgba(15, 23, 42, 0.85);
}

legend {
	font-size: 1rem;
	font-weight: 700;
	color: #d8b4fe;
	padding: 0 0.75rem;
}

label {
	display: inline-block;
	margin: 0.4rem 0 0.35rem;
	font-size: 0.95rem;
	color: #cbd5e1;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select {
	width: 100%;
	padding: 0.95rem 1rem;
	margin-bottom: 1rem;
	font-size: 1rem;
	color: #f8fafc;
	background: #111827;
	border: 1px solid rgba(148, 163, 184, 0.18);
	border-radius: 16px;
	transition: border-color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus {
	outline: none;
	border-color: var(--accent-strong);
	box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.14);
	transform: translateY(-1px);
}

input::placeholder {
	color: var(--muted);
}

.styled-select {
	appearance: none;
	background-image: linear-gradient(180deg, rgba(255,255,255,0.05), transparent 40%),
		radial-gradient(circle at top right, rgba(255,255,255,0.05), transparent 18%);
	background-position: right 1rem center, left top;
	background-repeat: no-repeat;
	padding-right: 2.5rem;
}

.styled-checkbox,
.styled-radio {
	appearance: none;
	margin-right: 0.75rem;
	width: 1.35rem;
	height: 1.35rem;
	border: 2px solid rgba(148, 163, 184, 0.35);
	border-radius: 0.5rem;
	background: #111827;
	vertical-align: middle;
	position: relative;
	cursor: pointer;
	transition: border-color 200ms ease, background-color 200ms ease, transform 200ms ease;
}

.styled-checkbox:hover,
.styled-radio:hover {
	transform: translateY(-1px);
}

.styled-checkbox:checked {
	background: linear-gradient(135deg, #8b5cf6, #06b6d4);
	border-color: transparent;
}

.styled-checkbox:checked::after {
	content: "\2713";
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -52%);
	font-size: 1rem;
	color: #ffffff;
}

.styled-radio {
	border-radius: 50%;
}

.styled-radio:checked {
	background: radial-gradient(circle at center, #f8fafc 0%, #8b5cf6 55%, #06b6d4 100%);
	border-color: transparent;
}

.styled-radio:checked::after {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0.55rem;
	height: 0.55rem;
	border-radius: 50%;
	transform: translate(-50%, -50%);
	background: #020617;
}

.submit-button {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	width: 100%;
	max-width: 260px;
	padding: 1rem 1.2rem;
	font-size: 1rem;
	font-weight: 700;
	color: #ffffff;
	background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
	border: none;
	border-radius: 999px;
	cursor: pointer;
	box-shadow: 0 16px 28px rgba(139, 92, 246, 0.22);
	transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.submit-button:hover {
	transform: translateY(-2px);
	box-shadow: 0 20px 30px rgba(139, 92, 246, 0.28);
}

.submit-button:focus-visible {
	outline: 3px solid rgba(124, 58, 237, 0.35);
}

@media (max-width: 560px) {
	body {
		padding: 1rem;
	}

	form {
		padding: 1.4rem;
	}

	fieldset {
		padding: 1.2rem 1rem 1rem;
	}
}