:root {
	color-scheme: light dark;
	--background: radial-gradient(circle at top, #0f172a, #020617);
	--card-bg: rgba(15, 23, 42, 0.72);
	--card-border: rgba(148, 163, 184, 0.35);
	--text-primary: #e2e8f0;
	--text-secondary: #94a3b8;
	--accent: #38bdf8;
	--accent-strong: #0ea5e9;
	--code-bg: rgba(15, 23, 42, 0.8);
	--code-border: rgba(56, 189, 248, 0.4);
	font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	min-height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 32px 16px;
	background: #020617;
	color: var(--text-primary);
	transition: background 0.4s ease;
	cursor: text;
}

body[data-stage="input"],
body[data-stage="unlocked"] {
	background: var(--background);
	cursor: default;
}

.activation-gate {
	position: fixed;
	inset: 0;
	z-index: 10;
	display: grid;
	grid-template-columns: 1fr 1fr;
	grid-template-rows: 1fr 1fr;
	touch-action: manipulation;
}

body[data-stage="input"] .activation-gate,
body[data-stage="unlocked"] .activation-gate {
	display: none;
}

.activation-zone {
	margin: 0;
	min-width: 0;
	min-height: 0;
}

.activation-zone-button {
	display: block;
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	border: 0;
	background: transparent;
	cursor: text;
	touch-action: manipulation;
}

.activation-zone-top-left {
	grid-column: 1;
	grid-row: 1;
}

.activation-zone-top-right {
	grid-column: 2;
	grid-row: 1;
}

.activation-zone-bottom-left {
	grid-column: 1;
	grid-row: 2;
}

.activation-zone-bottom-right {
	grid-column: 2;
	grid-row: 2;
}

main {
	width: min(520px, 100%);
	padding: clamp(28px, 4vw, 40px);
	border-radius: 24px;
	border: 1px solid var(--card-border);
	background: var(--card-bg);
	box-shadow: 0 30px 80px rgba(15, 23, 42, 0.45);
	backdrop-filter: blur(16px);
	display: grid;
	gap: clamp(18px, 3vw, 26px);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transform: translateY(26px) scale(0.995);
	transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s ease;
}

body[data-stage="input"] main,
body[data-stage="unlocked"] main {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
	transform: translateY(0) scale(1);
}

h1 {
	margin: 0 0 12px;
	font-size: clamp(28px, 4vw, 36px);
}

p {
	margin: 0 0 24px;
	color: var(--text-secondary);
	line-height: 1.6;
}

.access-form {
	display: grid;
	gap: 12px;
}

.access-label {
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: rgba(148, 163, 184, 0.9);
}

.input-row {
	display: flex;
	gap: 14px;
	flex-wrap: wrap;
}

.access-input {
	flex: 1 1 220px;
	padding: 16px 18px;
	border-radius: 16px;
	border: 1px solid rgba(148, 163, 184, 0.35);
	background: rgba(15, 23, 42, 0.45);
	color: var(--text-primary);
	font-size: 16px;
	outline: none;
	transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.access-input:focus {
	border-color: rgba(56, 189, 248, 0.7);
	box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18);
	background: rgba(15, 23, 42, 0.65);
}

.submit-button,
.copy-button {
	border-radius: 999px;
	border: none;
	font-weight: 600;
	color: #0f172a;
	background: linear-gradient(135deg, var(--accent), var(--accent-strong));
	cursor: pointer;
	transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.submit-button {
	padding: 14px 28px;
	font-size: 15px;
	box-shadow: 0 12px 30px rgba(14, 165, 233, 0.35);
}

.copy-button {
	margin-left: auto;
	padding: 10px 18px;
	font-size: 14px;
	box-shadow: 0 10px 25px rgba(14, 165, 233, 0.35);
}

.submit-button:hover,
.copy-button:hover {
	transform: translateY(-1px);
	box-shadow: 0 18px 40px rgba(14, 165, 233, 0.45);
}

.submit-button:active,
.copy-button:active {
	transform: translateY(0);
	box-shadow: 0 8px 18px rgba(14, 165, 233, 0.42);
}

.submit-button:disabled {
	cursor: not-allowed;
	opacity: 0.45;
}

.status-banner {
	display: none;
	margin: -4px 0 4px;
	font-size: 15px;
	color: var(--text-secondary);
	transition: color 0.25s ease;
}

body[data-stage="input"] .status-banner,
body[data-stage="unlocked"] .status-banner {
	display: block;
}

.status-banner:empty {
	display: none;
}

.status-banner[data-state="success"],
.feedback[data-state="success"] {
	color: #34d399;
}

.status-banner[data-state="error"],
.feedback[data-state="error"] {
	color: #f97316;
}

.access-result {
	display: grid;
	gap: 18px;
}

.access-result h2 {
	margin: 0;
	font-size: clamp(22px, 3.5vw, 26px);
}

.access-result p {
	margin: 0;
}

.code-box {
	position: relative;
	display: flex;
	align-items: center;
	padding: 18px 20px;
	border-radius: 18px;
	background: var(--code-bg);
	border: 1px solid var(--code-border);
	gap: 16px;
	overflow: hidden;
}

code {
	font-family: "Fira Code", "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
	font-size: clamp(17px, 3.5vw, 18px);
	font-weight: 600;
	letter-spacing: 0.05em;
	word-break: break-all;
	user-select: all;
}

.copy-button.copied {
	opacity: 0.92;
}

.feedback {
	margin-top: 18px;
	font-size: 14px;
	color: var(--text-secondary);
	min-height: 20px;
	transition: color 0.25s ease;
}

body[data-stage="unlocked"] .access-form {
	display: none;
}

@media (max-width: 480px) {
	.code-box {
		flex-direction: column;
		align-items: flex-start;
	}

	.copy-button,
	.submit-button {
		width: 100%;
		text-align: center;
	}

	.input-row {
		flex-direction: column;
	}
}