/**
 * TETRIVCI - UI Components
 * Buttons, cards, modals, inputs, badges
 */

.btn {
	appearance: none;
	border: 0;
	border-radius: var(--radius-lg);
	padding: 14px 22px;
	font-weight: var(--font-weight-extrabold);
	letter-spacing: 0.2px;
	font-size: 16px;
	cursor: pointer;
	transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-normal), background var(--transition-normal);
	width: 100%;
	max-width: 520px;
	text-align: center;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	margin-left: auto;
	margin-right: auto;
	box-sizing: border-box;
}

.btn:active {
	transform: translateY(1px) scale(0.99);
}

.btn-primary {
	background: linear-gradient(180deg, #111, #000);
	color: var(--color-white);
	box-shadow: var(--shadow-button);
}

.btn-primary:hover {
	filter: brightness(1.06);
	box-shadow: var(--shadow-button-hover);
}

.btn-secondary {
	background: rgba(255, 255, 255, 0.06);
	border: 1px solid var(--glass-border);
	color: var(--color-white);
}

.btn-secondary:hover {
	background: rgba(255, 255, 255, 0.1);
}

#btnStart {
	font-size: 22px;
	padding: 18px 28px;
	width: 100%;
	max-width: 520px;
}

.menuCard {
	pointer-events: auto;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--spacing-lg);
	padding: 26px 28px;
	border-radius: var(--radius-xl);
	background: var(--glass-bg);
	border: 1px solid var(--glass-border);
	box-shadow: var(--shadow-card);
	width: clamp(260px, 92vw, 520px);
	backdrop-filter: blur(12px);
	margin-top: 8vh;
}

#centerMessage {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	pointer-events: auto;
	z-index: 12;
}

#centerMessage::before {
	content: "";
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0.5);
	backdrop-filter: blur(10px) saturate(110%);
	-webkit-backdrop-filter: blur(10px) saturate(110%);
	pointer-events: none;
}

#centerMessage > #centerText {
	background: var(--glass-bg-darker);
	border: 1px solid var(--glass-border);
	box-shadow: 0 12px 48px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.1);
	backdrop-filter: blur(12px) saturate(120%);
	-webkit-backdrop-filter: blur(12px) saturate(120%);
	color: var(--color-white);
	padding: var(--spacing-xl) 34px;
	border-radius: 14px;
	font-size: 22px;
	text-align: center;
	min-width: 260px;
	width: clamp(260px, 86vw, 520px);
	white-space: pre-line;
}

#centerMessage .actions {
	margin-top: 14px;
	display: flex;
	flex-direction: column;
	gap: var(--spacing-md);
	align-items: stretch;
	width: 100%;
	max-width: 520px;
	margin-left: auto;
	margin-right: auto;
	box-sizing: border-box;
}

#centerMessage .actions .btn {
	padding: var(--spacing-lg) 18px;
	font-size: 16px;
	border-radius: var(--radius-lg);
}

#fullLeaderboardModal {
	position: fixed;
	inset: 0;
	z-index: 100;
	display: none;
	align-items: center;
	justify-content: center;
	background: var(--glass-bg-dark);
	backdrop-filter: blur(8px);
}

#fullLeaderboardModal.visible {
	display: flex;
}

#fullLeaderboardModal .modal-content {
	background: rgba(0, 0, 0, 0.85);
	border: 1px solid var(--glass-border);
	border-radius: var(--radius-xl);
	padding: var(--spacing-xl);
	max-width: 500px;
	width: 90vw;
	max-height: 80vh;
	overflow-y: auto;
}

#fullLeaderboardModal .modal-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: var(--spacing-lg);
}

#fullLeaderboardModal .modal-title {
	font-size: 18px;
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
}

#fullLeaderboardModal .modal-close {
	background: rgba(255, 255, 255, 0.1);
	border: none;
	color: var(--color-white);
	width: 32px;
	height: 32px;
	border-radius: var(--radius-md);
	cursor: pointer;
	font-size: 18px;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background var(--transition-normal);
}

#fullLeaderboardModal .modal-close:hover {
	background: rgba(255, 255, 255, 0.2);
}

.username-section {
	width: 100%;
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
	margin-bottom: var(--spacing-xs);
}

.username-section label {
	font-size: 12px;
	opacity: 0.75;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.username-input {
	width: 100%;
	padding: 12px 14px;
	border-radius: 10px;
	border: 1px solid var(--glass-border-light);
	background: rgba(255, 255, 255, 0.06);
	color: var(--color-white);
	font-size: 16px;
	font-weight: var(--font-weight-semibold);
	font-family: inherit;
	outline: none;
	transition: border-color var(--transition-normal), background var(--transition-normal);
	box-sizing: border-box;
}

.username-input:focus {
	border-color: rgba(255, 255, 255, 0.35);
	background: rgba(255, 255, 255, 0.1);
}

.username-input::placeholder {
	color: rgba(255, 255, 255, 0.4);
	font-weight: var(--font-weight-normal);
}

#usernameBox {
	position: absolute;
	right: 10px;
	bottom: 10px;
	z-index: 25;
	background: var(--glass-bg-dark);
	padding: 10px 14px;
	border-radius: 10px;
	backdrop-filter: blur(8px);
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
	min-width: 180px;
}

#usernameBox label {
	font-size: 10px;
	opacity: 0.6;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

#usernameBox .username-input {
	padding: 8px 10px;
	font-size: 16px; /* 16px minimum prevents iOS auto-zoom on focus */
	border-radius: var(--radius-sm);
}

.badge {
	display: inline-block;
	font-size: 10px;
	font-weight: var(--font-weight-extrabold);
	letter-spacing: 0.3px;
	padding: 3px 6px;
	border-radius: var(--radius-pill);
	background: rgba(255, 255, 255, 0.14);
	border: 1px solid rgba(255, 255, 255, 0.16);
	color: var(--color-white);
}

.statPills {
	display: flex;
	gap: var(--spacing-sm);
	justify-content: center;
	flex-wrap: wrap;
	margin: var(--spacing-sm) 0 var(--spacing-md);
}

.pill {
	background: rgba(255, 255, 255, 0.06);
	border: 1px solid rgba(255, 255, 255, 0.12);
	padding: 6px 10px;
	border-radius: var(--radius-pill);
	font-weight: var(--font-weight-extrabold);
	color: var(--color-white);
}

.loading-spinner {
	display: inline-block;
	width: 16px;
	height: 16px;
	border: 2px solid rgba(255, 255, 255, 0.2);
	border-top-color: rgba(255, 255, 255, 0.8);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}