/* ==========================================================================
   ChopSkills Arena — Core Styles
   ==========================================================================
   Modern, responsive voting arena UI with premium visual design.
   Uses CSS custom properties for easy theming and consistent values.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens
   -------------------------------------------------------------------------- */
:root {
	/* Arena-specific variables if any */
}

/* --------------------------------------------------------------------------
   Arena Root Container
   -------------------------------------------------------------------------- */
#chopskills-arena-root {
	max-width: 960px;
	margin: 2rem auto;
	padding: 1.5rem;
	font-family: var(--cs-font);
	color: var(--cs-text-primary);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Challenge Tab Bar
   -------------------------------------------------------------------------- */
.cs-arena-tabs {
	display: flex;
	gap: 0.5rem;
	margin-bottom: 1.75rem;
	padding-bottom: 1.25rem;
	border-bottom: 1px solid var(--cs-border-subtle);
	flex-wrap: wrap;
}

.cs-arena-tab {
	padding: 0.5rem 1.25rem;
	font-family: var(--cs-font);
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--cs-text-muted);
	background: transparent;
	border: 1px solid var(--cs-border-subtle);
	border-radius: 100px;
	cursor: pointer;
	transition:
		color var(--cs-transition),
		background var(--cs-transition),
		border-color var(--cs-transition),
		box-shadow var(--cs-transition);
	white-space: nowrap;
}

.cs-arena-tab:hover {
	color: var(--cs-text-primary);
	border-color: color-mix(in srgb, var(--cs-arena-accent-1) 35%, transparent);
	background: color-mix(in srgb, var(--cs-arena-accent-1) 6%, transparent);
}

.cs-arena-tab--active {
	color: #fff;
	background: linear-gradient(135deg, var(--cs-arena-accent-1), var(--cs-arena-accent-2));
	border-color: transparent;
	box-shadow: 0 4px 14px color-mix(in srgb, var(--cs-arena-accent-1) 40%, transparent);
}

.cs-arena-tab--active:hover {
	background: linear-gradient(135deg, var(--cs-arena-accent-1), var(--cs-arena-accent-2));
	filter: brightness(0.88);
	border-color: transparent;
}

/* Content area — the JS-managed zone below the tabs */
.cs-arena-content {
	animation: cs-fade-in 0.25s ease-out;
}

/* --------------------------------------------------------------------------
   Loading Spinner
   -------------------------------------------------------------------------- */
#chopskills-arena-root.cs-loading {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 400px;
}

.cs-spinner {
	width: 44px;
	height: 44px;
	border: 3px solid var(--cs-border-subtle);
	border-top-color: var(--cs-accent);
	border-radius: 50%;
	animation: cs-spin 0.8s linear infinite;
}

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

/* --------------------------------------------------------------------------
   Header / Prompt
   -------------------------------------------------------------------------- */
.cs-header {
	text-align: center;
	margin-bottom: 1.75rem;
}

.cs-header__title {
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: -0.02em;
	margin: 0 0 0.35rem;
	background: linear-gradient(135deg, var(--cs-text-primary), var(--cs-accent));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.cs-header__subtitle {
	font-size: 0.9rem;
	color: var(--cs-text-muted);
	margin: 0;
}

/* --------------------------------------------------------------------------
   Match Grid — Two-Column Layout
   -------------------------------------------------------------------------- */
.cs-match {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.25rem;
	position: relative;
}

/* "VS" Badge */
.cs-match__vs {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	z-index: 10;
	width: 52px;
	height: 52px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: var(--cs-bg-primary);
	border: 2px solid var(--cs-border-subtle);
	font-weight: 800;
	font-size: 0.85rem;
	color: var(--cs-accent);
	letter-spacing: 0.06em;
	text-transform: uppercase;
	box-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
	pointer-events: none;
}

/* --------------------------------------------------------------------------
   Contestant Card
   -------------------------------------------------------------------------- */
.cs-card {
	position: relative;
	overflow: hidden;
	border-radius: var(--cs-radius);
	border: 1px solid var(--cs-border-subtle);
	background: var(--cs-bg-card, #1a1a2e);
	box-shadow: var(--cs-shadow-card);
	cursor: pointer;
	height: 460px;
	display: flex;
	align-items: center;
	justify-content: center;
	transition:
		transform var(--cs-transition),
		box-shadow var(--cs-transition),
		border-color var(--cs-transition);
}

.cs-card:hover {
	transform: translateY(-4px) scale(1.015);
	box-shadow: var(--cs-shadow-hover);
	border-color: var(--cs-border-glow);
	background: var(--cs-bg-card-hover);
}

.cs-card:active {
	transform: translateY(0) scale(0.985);
}

/* Card image */
.cs-card__img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
	transition: transform var(--cs-transition);
}

.cs-card:hover .cs-card__img {
	transform: scale(1.04);
}

/* Gradient overlay at bottom of card for text legibility */
.cs-card__overlay {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	padding: 2rem 1rem 1rem;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 100%);
	display: flex;
	align-items: flex-end;
	justify-content: center;
	pointer-events: none;
}

.cs-card__label {
	font-size: 0.8rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: rgba(255, 255, 255, 0.85);
	background: rgba(255, 255, 255, 0.1);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	padding: 0.4rem 0.9rem;
	border-radius: 100px;
	border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Zoom button — bottom-right corner, always visible */
.cs-card__zoom {
	position: absolute;
	bottom: 0.6rem;
	right: 0.6rem;
	z-index: 15;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.4rem 0.75rem;
	background: rgba(0, 0, 0, 0.6);
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: 6px;
	color: #fff;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	cursor: pointer;
	opacity: 0.7;
	transition: opacity 0.2s ease, background 0.15s;
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
}

.cs-card__zoom:hover {
	opacity: 1;
	background: rgba(255, 255, 255, 0.2);
}


/* --------------------------------------------------------------------------
   Vote Overlay (prevents double-click)
   -------------------------------------------------------------------------- */
.cs-voting-overlay {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(10, 10, 15, 0.7);
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	border-radius: var(--cs-radius);
	z-index: 20;
}

.cs-voting-overlay .cs-spinner {
	width: 32px;
	height: 32px;
	border-width: 2px;
}

/* --------------------------------------------------------------------------
   Win Flash Animation
   -------------------------------------------------------------------------- */
.cs-card--winner {
	animation: cs-flash-win 0.5s ease-out;
}

@keyframes cs-flash-win {
	0% {
		box-shadow: 0 0 0 0 var(--cs-accent-glow);
		border-color: var(--cs-accent);
	}
	50% {
		box-shadow: 0 0 30px 10px var(--cs-accent-glow);
	}
	100% {
		box-shadow: var(--cs-shadow-card);
		border-color: var(--cs-border-subtle);
	}
}

/* --------------------------------------------------------------------------
   Error State
   -------------------------------------------------------------------------- */
.cs-error {
	text-align: center;
	padding: 3rem 1.5rem;
	color: var(--cs-text-muted);
}

.cs-error__icon {
	font-size: 2.5rem;
	margin-bottom: 0.75rem;
	opacity: 0.6;
}

.cs-error__message {
	font-size: 0.95rem;
	margin: 0 0 1.25rem;
}

.cs-error__retry {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.6rem 1.4rem;
	font-size: 0.85rem;
	font-weight: 600;
	color: #fff;
	background: var(--cs-accent);
	border: none;
	border-radius: 100px;
	cursor: pointer;
	transition: background var(--cs-transition), transform var(--cs-transition);
}

.cs-error__retry:hover {
	background: #4f46e5;
	transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Pro Upgrade Prompt
   -------------------------------------------------------------------------- */
.cs-pro-prompt {
	text-align: center;
	padding: 3.5rem 2rem;
	background: linear-gradient(
		135deg,
		color-mix(in srgb, var(--cs-accent) 8%, transparent) 0%,
		color-mix(in srgb, #a855f7 8%, transparent) 100%
	);
	border: 1px solid color-mix(in srgb, var(--cs-accent) 20%, transparent);
	border-radius: var(--cs-radius);
	animation: cs-fade-in 0.4s ease-out;
}

@keyframes cs-fade-in {
	from { opacity: 0; transform: translateY(8px); }
	to   { opacity: 1; transform: translateY(0); }
}

.cs-pro-prompt h3 {
	font-size: 1.6rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	margin: 0 0 0.75rem;
	background: linear-gradient(135deg, #f0f0f5, var(--cs-accent));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.cs-pro-prompt p {
	font-size: 1rem;
	color: var(--cs-text-muted);
	margin: 0 0 1.75rem;
	max-width: 340px;
	margin-left: auto;
	margin-right: auto;
	line-height: 1.6;
}

/* CTA button — reusable .cs-btn utility */
.cs-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 0.8rem 2rem;
	font-family: var(--cs-font);
	font-size: 0.95rem;
	font-weight: 700;
	color: #fff;
	text-decoration: none;
	background: linear-gradient(135deg, var(--cs-accent), #a855f7);
	border: none;
	border-radius: 100px;
	cursor: pointer;
	box-shadow: 0 4px 20px color-mix(in srgb, var(--cs-accent) 35%, transparent);
	transition:
		transform var(--cs-transition),
		box-shadow var(--cs-transition),
		filter var(--cs-transition);
}

.cs-btn:hover {
	transform: translateY(-2px) scale(1.02);
	box-shadow: 0 8px 28px color-mix(in srgb, var(--cs-accent) 50%, transparent);
	filter: brightness(1.1);
}

/* --------------------------------------------------------------------------
   Sponsored Challenge Banner
   -------------------------------------------------------------------------- */
.cs-sponsor {
	background: rgba(168, 85, 247, 0.04);
	border: 1px solid rgba(168, 85, 247, 0.15);
	border-radius: var(--cs-radius);
	padding: 1.25rem 1.5rem;
	margin-bottom: 2rem;
	text-align: center;
	position: relative;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cs-sponsor__tag {
	position: absolute;
	top: -10px;
	left: 50%;
	transform: translateX(-50%);
	background: linear-gradient(135deg, var(--cs-accent), #a855f7);
	color: #fff;
	font-size: 0.65rem;
	font-weight: 800;
	letter-spacing: 0.1em;
	padding: 0.25rem 0.75rem;
	border-radius: 20px;
	box-shadow: 0 2px 10px rgba(168, 85, 247, 0.4);
}

.cs-sponsor__content {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.65rem;
	margin: 0.25rem 0 0.75rem;
}

.cs-sponsor__presented {
	font-size: 0.85rem;
	color: var(--cs-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.cs-sponsor__logo {
	max-height: 38px;
	max-width: 180px;
	object-fit: contain;
	display: block;
	transition: var(--cs-transition);
}

.cs-sponsor__logo:hover {
	transform: scale(1.03);
	filter: brightness(1.1);
}

.cs-sponsor__prize {
	font-size: 0.9rem;
	color: var(--cs-text-primary);
	background: rgba(255, 255, 255, 0.02);
	border: 1px solid var(--cs-border-subtle);
	border-radius: var(--cs-radius-sm);
	padding: 0.5rem 0.75rem;
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
}

.cs-sponsor__prize-label {
	color: #fbbf24;
	font-weight: 700;
	font-size: 0.8rem;
	text-transform: uppercase;
}

.cs-sponsor__prize-text {
	font-weight: 600;
}

.cs-prize-pro-badge {
	font-size: 0.65rem;
	font-weight: 800;
	background: var(--cs-accent);
	color: #fff;
	padding: 0.15rem 0.4rem;
	border-radius: 4px;
	margin-left: 0.25rem;
	letter-spacing: 0.05em;
}

.cs-prize-warning {
	display: flex;
	align-items: center;
	justify-content: space-between;
	background: rgba(245, 158, 11, 0.05);
	border: 1px solid rgba(245, 158, 11, 0.25);
	border-radius: var(--cs-radius-sm);
	padding: 0.85rem 1.25rem;
	margin-bottom: 1.5rem;
	gap: 1rem;
	text-align: left;
}

.cs-prize-warning__body {
	display: flex;
	align-items: center;
	gap: 0.6rem;
}

.cs-prize-warning__icon {
	font-size: 1.2rem;
	flex-shrink: 0;
}

.cs-prize-warning__text {
	font-size: 0.85rem;
	font-weight: 600;
	color: #f59e0b;
}

.cs-prize-warning__btn {
	background: #f59e0b;
	color: #000 !important;
	border: none;
	border-radius: 20px;
	padding: 0.4rem 1rem;
	font-size: 0.8rem;
	font-weight: 700;
	text-decoration: none !important;
	cursor: pointer;
	transition: var(--cs-transition);
	flex-shrink: 0;
	box-shadow: 0 2px 8px rgba(245, 158, 11, 0.2);
}

.cs-prize-warning__btn:hover {
	background: #d97706;
	transform: translateY(-1px);
	box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}

/* --------------------------------------------------------------------------
   View Challenge Link
   -------------------------------------------------------------------------- */
.cs-arena-view-challenge {
	text-align: center;
	margin-top: 1.25rem;
}

.cs-arena-view-challenge__link {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--cs-text-muted);
	text-decoration: none;
	letter-spacing: 0.02em;
	transition: color var(--cs-transition), gap var(--cs-transition);
}

.cs-arena-view-challenge__link::after {
	content: '→';
	font-size: 1em;
	transition: transform var(--cs-transition);
}

.cs-arena-view-challenge__link:hover {
	color: var(--cs-accent);
	gap: 0.5rem;
}

.cs-arena-view-challenge__link:hover::after {
	transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   Responsive — Stack on Small Screens
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
	.cs-match {
		grid-template-columns: 1fr;
		gap: 1rem;
	}

	.cs-match__vs {
		position: relative;
		top: auto;
		left: auto;
		transform: none;
		margin: -0.5rem auto;
		width: 42px;
		height: 42px;
		font-size: 0.75rem;
	}

	.cs-card {
		height: 300px;
	}

	.cs-header__title {
		font-size: 1.25rem;
	}
}

@media (max-width: 420px) {
	.cs-arena-wrapper { padding: 0 0.5rem 2rem; }
	.cs-header__title { font-size: 1.1rem; }
	.cs-header__subtitle { font-size: 0.8rem; }
	.cs-match__vs { width: 36px; height: 36px; font-size: 0.65rem; }
	.cs-card__info { padding: 0.75rem; }
	.cs-card__title { font-size: 0.9rem; }
	.cs-card__pick { padding: 0.6rem 1rem; font-size: 0.85rem; }
	.cs-scoreboard { padding: 1rem; }
	.cs-scoreboard__title { font-size: 1rem; }
}

/* --------------------------------------------------------------------------
   Marching Ants — Voting Card Hover
   Gated by body.cs-marching-ants-active (Customizer: ChopSkills Design).
   Uses ::after since no pseudo-elements are occupied on .cs-card.
   -------------------------------------------------------------------------- */
@keyframes cs-marching-ants {
	to {
		background-position: 100% 0, 0 100%, 0 0, 100% 100%;
	}
}

body.cs-marching-ants-active .cs-card::after {
	content: '';
	position: absolute;
	inset: 0;
	pointer-events: none;
	z-index: 10;
	border-radius: inherit;
	opacity: 0;
	transition: opacity 0.3s ease;
	background-image:
		linear-gradient(90deg, #fff 50%, transparent 50%),
		linear-gradient(90deg, #fff 50%, transparent 50%),
		linear-gradient(0deg, #fff 50%, transparent 50%),
		linear-gradient(0deg, #fff 50%, transparent 50%);
	background-repeat: repeat-x, repeat-x, repeat-y, repeat-y;
	background-size: 12px 2px, 12px 2px, 2px 12px, 2px 12px;
	background-position: 0 0, 100% 100%, 0 100%, 100% 0;
}

body.cs-marching-ants-active .cs-card:hover::after {
	opacity: 0.25;
	animation: cs-marching-ants 10s linear infinite;
}

body.cs-marching-ants-active .cs-card:hover {
	border-color: transparent !important;
}