/* CalcSolver Arcade — front-end styles. Prefix: .csarc */

@font-face {
	font-family: 'Plus Jakarta Sans';
	font-style: normal;
	font-weight: 200 800;
	font-display: swap;
	src: url('../fonts/plus-jakarta-sans-latin.woff2') format('woff2');
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
	font-family: 'Plus Jakarta Sans';
	font-style: normal;
	font-weight: 200 800;
	font-display: swap;
	src: url('../fonts/plus-jakarta-sans-latin-ext.woff2') format('woff2');
	unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

.csarc-app {
	--csarc-accent: #C6F432;
	--csarc-bg-deep: #0A0E1C;
	--csarc-surface: rgba(255, 255, 255, 0.06);
	--csarc-surface-strong: rgba(255, 255, 255, 0.1);
	--csarc-border: rgba(255, 255, 255, 0.14);
	--csarc-text: #F2F5EA;
	--csarc-text-dim: rgba(242, 245, 234, 0.62);
	--csarc-key: rgba(255, 255, 255, 0.07);
	--csarc-key-hover: rgba(255, 255, 255, 0.14);
	--csarc-danger: #FF7A7A;
	--csarc-radius: 22px;
	position: relative;
	font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
	color: var(--csarc-text);
	max-width: 880px;
	margin: 0 auto;
	padding: 28px 16px 36px;
	box-sizing: border-box;
	overflow: hidden;
	border-radius: 28px;
	background: radial-gradient(120% 140% at 15% 0%, #16224a 0%, var(--csarc-bg-deep) 55%, #060913 100%);
}
.csarc-app *, .csarc-app *::before, .csarc-app *::after { box-sizing: border-box; }

/* Light theme */
.csarc-app[data-csarc-theme="light"] {
	--csarc-surface: rgba(10, 14, 28, 0.05);
	--csarc-surface-strong: rgba(10, 14, 28, 0.09);
	--csarc-border: rgba(10, 14, 28, 0.14);
	--csarc-text: #10182E;
	--csarc-text-dim: rgba(16, 24, 46, 0.62);
	--csarc-key: rgba(10, 14, 28, 0.06);
	--csarc-key-hover: rgba(10, 14, 28, 0.12);
	--csarc-danger: #C62F2F;
	background: radial-gradient(120% 140% at 15% 0%, #E8F5C8 0%, #F4F7EE 55%, #E7ECDC 100%);
}
@media (prefers-color-scheme: light) {
	.csarc-app[data-csarc-theme="auto"] {
		--csarc-surface: rgba(10, 14, 28, 0.05);
		--csarc-surface-strong: rgba(10, 14, 28, 0.09);
		--csarc-border: rgba(10, 14, 28, 0.14);
		--csarc-text: #10182E;
		--csarc-text-dim: rgba(16, 24, 46, 0.62);
		--csarc-key: rgba(10, 14, 28, 0.06);
		--csarc-key-hover: rgba(10, 14, 28, 0.12);
		--csarc-danger: #C62F2F;
		background: radial-gradient(120% 140% at 15% 0%, #E8F5C8 0%, #F4F7EE 55%, #E7ECDC 100%);
	}
}

/* Animated gradient orbs */
.csarc-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.csarc-orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.5; }
.csarc-orb-a { width: 340px; height: 340px; background: var(--csarc-accent); top: -120px; right: -80px; opacity: 0.28; }
.csarc-orb-b { width: 260px; height: 260px; background: #4D7CFE; bottom: -100px; left: -60px; opacity: 0.3; }
.csarc-orb-c { width: 180px; height: 180px; background: #B44DFE; top: 40%; left: 55%; opacity: 0.18; }
.csarc-app[data-csarc-anim="1"] .csarc-orb-a { animation: csarc-drift 16s ease-in-out infinite alternate; }
.csarc-app[data-csarc-anim="1"] .csarc-orb-b { animation: csarc-drift 20s ease-in-out infinite alternate-reverse; }
.csarc-app[data-csarc-anim="1"] .csarc-orb-c { animation: csarc-drift 24s ease-in-out infinite alternate; }
@keyframes csarc-drift {
	from { transform: translate(0, 0) scale(1); }
	to { transform: translate(-46px, 34px) scale(1.12); }
}

.csarc-head { position: relative; text-align: center; margin-bottom: 18px; }
.csarc-title { margin: 0; font-size: clamp(26px, 5vw, 40px); font-weight: 800; letter-spacing: -0.02em; color: var(--csarc-text); }
.csarc-subtitle { margin: 4px 0 0; color: var(--csarc-text-dim); font-size: clamp(13px, 2.6vw, 16px); font-weight: 500; }

/* ---------- Calculator card (glassmorphism) ---------- */
.csarc-card {
	position: relative;
	background: var(--csarc-surface);
	border: 1px solid var(--csarc-border);
	border-radius: var(--csarc-radius);
	backdrop-filter: blur(18px) saturate(1.3);
	-webkit-backdrop-filter: blur(18px) saturate(1.3);
	box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
	padding: 18px;
	max-width: 560px;
	margin: 0 auto;
}

.csarc-topbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.csarc-topbar-actions { display: flex; gap: 8px; align-items: center; margin-left: auto; }

.csarc-iconbtn {
	appearance: none; border: 1px solid var(--csarc-border); background: var(--csarc-key);
	color: var(--csarc-text); border-radius: 12px; min-width: 40px; height: 40px;
	font-size: 17px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
	transition: background 0.15s ease, transform 0.1s ease;
}
.csarc-iconbtn:hover { background: var(--csarc-key-hover); }
.csarc-iconbtn:active { transform: scale(0.94); }

.csarc-angle {
	appearance: none; border: 1px solid var(--csarc-border); background: var(--csarc-key);
	color: var(--csarc-accent); border-radius: 12px; height: 40px; padding: 0 12px;
	font: inherit; font-weight: 700; font-size: 13px; letter-spacing: 0.06em; cursor: pointer;
}

/* Code Mode switch */
.csarc-codemode { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; user-select: none; }
.csarc-codemode-input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.csarc-codemode-track {
	width: 46px; height: 26px; border-radius: 999px; background: var(--csarc-key);
	border: 1px solid var(--csarc-border); position: relative; transition: background 0.25s ease, box-shadow 0.25s ease; flex: none;
}
.csarc-codemode-thumb {
	position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; border-radius: 50%;
	background: var(--csarc-text); transition: transform 0.25s ease, background 0.25s ease;
}
.csarc-codemode-input:checked + .csarc-codemode-track { background: var(--csarc-accent); box-shadow: 0 0 16px var(--csarc-accent); }
.csarc-codemode-input:checked + .csarc-codemode-track .csarc-codemode-thumb { transform: translateX(20px); background: #0A0E1C; }
.csarc-codemode-input:focus-visible + .csarc-codemode-track { outline: 2px solid var(--csarc-accent); outline-offset: 2px; }
.csarc-codemode-label { font-weight: 700; font-size: 13px; letter-spacing: 0.04em; }

/* Screen */
.csarc-screen {
	position: relative; margin-top: 14px; border-radius: 16px; padding: 16px 16px 12px;
	background: rgba(0, 0, 0, 0.28); border: 1px solid var(--csarc-border);
	min-height: 96px; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-end;
	transition: box-shadow 0.35s ease, border-color 0.35s ease;
	overflow: hidden;
}
.csarc-app[data-csarc-theme="light"] .csarc-screen,
.csarc-app[data-csarc-theme="auto"] .csarc-screen { background: rgba(255, 255, 255, 0.55); }
.csarc-screen-glow { box-shadow: 0 0 0 1px var(--csarc-accent), 0 0 28px -4px var(--csarc-accent); border-color: var(--csarc-accent); }
.csarc-screen-error { border-color: var(--csarc-danger); }
.csarc-expr {
	font-size: clamp(20px, 4.6vw, 28px); font-weight: 600; word-break: break-all; text-align: right;
	min-height: 1.35em; color: var(--csarc-text);
}
.csarc-expr:empty::before { content: '0'; color: var(--csarc-text-dim); }
.csarc-preview { font-size: clamp(15px, 3.4vw, 19px); color: var(--csarc-accent); font-weight: 700; min-height: 1.3em; text-align: right; word-break: break-all; }
.csarc-preview-error { color: var(--csarc-danger); }
.csarc-memflag { position: absolute; top: 8px; left: 12px; font-size: 11px; font-weight: 800; color: var(--csarc-accent); letter-spacing: 0.08em; }
.csarc-result-pop { animation: csarc-pop 0.3s ease; }
@keyframes csarc-pop { 0% { transform: scale(0.92); opacity: 0.4; } 100% { transform: scale(1); opacity: 1; } }

/* History */
.csarc-history { margin-top: 12px; border: 1px solid var(--csarc-border); border-radius: 14px; padding: 10px 12px; background: var(--csarc-surface); max-height: 220px; overflow: auto; }
.csarc-history-head { display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 13px; margin-bottom: 6px; }
.csarc-history-clear { background: none; border: none; color: var(--csarc-danger); font: inherit; font-size: 12px; cursor: pointer; padding: 4px 6px; }
.csarc-history-list { list-style: none; margin: 0; padding: 0; }
.csarc-history-item {
	width: 100%; display: flex; justify-content: space-between; gap: 12px; background: none; border: none;
	border-top: 1px solid var(--csarc-border); color: var(--csarc-text); font: inherit; font-size: 14px;
	padding: 8px 2px; cursor: pointer; text-align: left;
}
.csarc-history-item:hover { background: var(--csarc-key); }
.csarc-history-result { color: var(--csarc-accent); font-weight: 700; white-space: nowrap; }
.csarc-history-empty { color: var(--csarc-text-dim); font-size: 13px; margin: 4px 0; }

/* Keypad */
.csarc-pad { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-top: 14px; }
.csarc-key {
	position: relative; overflow: hidden; appearance: none; border: 1px solid transparent;
	border-radius: 14px; min-height: 52px; padding: 6px 2px;
	font: inherit; font-size: clamp(14px, 3.4vw, 17px); font-weight: 600;
	background: var(--csarc-key); color: var(--csarc-text); cursor: pointer;
	transition: transform 0.08s ease, background 0.15s ease, box-shadow 0.15s ease;
	touch-action: manipulation; -webkit-tap-highlight-color: transparent;
}
.csarc-key:hover { background: var(--csarc-key-hover); }
.csarc-key:active { transform: scale(0.93); box-shadow: 0 0 0 1px var(--csarc-accent), 0 0 14px -2px var(--csarc-accent); }
.csarc-key-num { background: var(--csarc-surface-strong); font-weight: 700; font-size: clamp(16px, 4vw, 19px); }
.csarc-key-op { color: var(--csarc-accent); font-weight: 800; }
.csarc-key-util.csarc-key-danger, .csarc-key-danger { color: var(--csarc-danger); font-weight: 800; }
.csarc-key-equals { background: var(--csarc-accent); color: #0A0E1C; font-weight: 800; font-size: 20px; box-shadow: 0 6px 20px -6px var(--csarc-accent); }
.csarc-key-equals:hover { background: var(--csarc-accent); filter: brightness(1.07); }
.csarc-key-wide { grid-column: span 2; }
.csarc-key-spacer { min-height: 1px; }
.csarc-ripple {
	position: absolute; border-radius: 50%; background: var(--csarc-accent); opacity: 0.35;
	transform: scale(0); animation: csarc-ripple 0.6s ease-out forwards; pointer-events: none;
}
@keyframes csarc-ripple { to { transform: scale(2.4); opacity: 0; } }

.csarc-codehint { margin: 12px 2px 0; font-size: 13px; color: var(--csarc-accent); font-weight: 600; text-align: center; }

/* Focus visibility (accessibility) */
.csarc-app button:focus-visible, .csarc-app input:focus-visible, .csarc-app select:focus-visible {
	outline: 2px solid var(--csarc-accent); outline-offset: 2px;
}

/* ---------- Buttons ---------- */
.csarc-btn {
	appearance: none; font: inherit; font-weight: 700; font-size: 14px; border-radius: 999px;
	padding: 10px 18px; cursor: pointer; border: 1px solid var(--csarc-border);
	transition: transform 0.1s ease, background 0.15s ease, filter 0.15s ease;
}
.csarc-btn:active { transform: scale(0.96); }
.csarc-btn-ghost { background: var(--csarc-key); color: var(--csarc-text); }
.csarc-btn-ghost:hover { background: var(--csarc-key-hover); }
.csarc-btn-accent { background: var(--csarc-accent); color: #0A0E1C; border-color: transparent; box-shadow: 0 6px 20px -8px var(--csarc-accent); }
.csarc-btn-accent:hover { filter: brightness(1.07); }

/* ---------- Library ---------- */
.csarc-view-library, .csarc-view-player { position: relative; }
.csarc-lib-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.csarc-lib-title { margin: 0; font-size: clamp(20px, 4.4vw, 28px); font-weight: 800; }
.csarc-lib-tools { position: sticky; top: 8px; z-index: 5; margin-top: 14px; padding: 10px; border-radius: 16px;
	background: var(--csarc-surface); border: 1px solid var(--csarc-border);
	backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.csarc-searchbar { display: flex; gap: 8px; }
.csarc-search {
	flex: 1 1 auto; min-width: 0; font: inherit; font-size: 15px; padding: 11px 14px; border-radius: 12px;
	border: 1px solid var(--csarc-border); background: rgba(0, 0, 0, 0.22); color: var(--csarc-text);
}
.csarc-app[data-csarc-theme="light"] .csarc-search { background: rgba(255, 255, 255, 0.7); }
.csarc-search::placeholder { color: var(--csarc-text-dim); }
.csarc-sort {
	font: inherit; font-size: 14px; padding: 11px 10px; border-radius: 12px; flex: none;
	border: 1px solid var(--csarc-border); background: var(--csarc-key); color: var(--csarc-text);
}
.csarc-chips { display: flex; gap: 8px; overflow-x: auto; padding: 10px 2px 2px; scrollbar-width: thin; }
.csarc-chip {
	flex: none; appearance: none; font: inherit; font-size: 13px; font-weight: 700; padding: 7px 14px;
	border-radius: 999px; border: 1px solid var(--csarc-border); background: var(--csarc-key); color: var(--csarc-text); cursor: pointer;
}
.csarc-chip-on { background: var(--csarc-accent); color: #0A0E1C; border-color: transparent; }

.csarc-shelf { margin-top: 20px; }
.csarc-shelf-title { margin: 0 0 10px; font-size: 16px; font-weight: 800; }
.csarc-count { color: var(--csarc-text-dim); font-size: 13px; font-weight: 600; margin: 18px 2px 10px; }

.csarc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.csarc-grid-shelf { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); }

.csarc-card-game { position: relative; border-radius: 16px; }
.csarc-card-main {
	appearance: none; display: block; width: 100%; text-align: left; padding: 0; cursor: pointer;
	background: var(--csarc-surface); border: 1px solid var(--csarc-border); border-radius: 16px; overflow: hidden;
	font: inherit; color: var(--csarc-text);
	transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.csarc-card-main:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35); }
.csarc-card-img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: rgba(0, 0, 0, 0.25); }
.csarc-card-body { display: block; padding: 9px 11px 11px; }
.csarc-card-title { display: block; font-size: 13.5px; font-weight: 700; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.csarc-card-meta { display: block; font-size: 11.5px; color: var(--csarc-text-dim); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.csarc-favbtn {
	position: absolute; top: 8px; right: 8px; z-index: 2; width: 34px; height: 34px; border-radius: 50%;
	border: 1px solid var(--csarc-border); background: rgba(6, 9, 19, 0.66); color: #fff; font-size: 16px;
	cursor: pointer; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px);
}
.csarc-favbtn.csarc-favon, .csarc-favon { color: #FF5C7A; }

.csarc-skeleton { min-height: 168px; background: var(--csarc-surface); border: 1px solid var(--csarc-border); overflow: hidden; }
.csarc-skeleton::after {
	content: ''; position: absolute; inset: 0;
	background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.14) 50%, transparent 70%);
	animation: csarc-shimmer 1.3s infinite; transform: translateX(-100%);
}
@keyframes csarc-shimmer { to { transform: translateX(100%); } }

.csarc-libmsg { text-align: center; color: var(--csarc-text-dim); font-weight: 600; padding: 26px 10px; }
.csarc-loadmore { display: block; margin: 18px auto 4px; }
.csarc-sentinel { height: 1px; }

/* ---------- Player ---------- */
.csarc-player-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.csarc-player-meta { flex: 1 1 auto; min-width: 0; }
.csarc-player-title { margin: 0; font-size: clamp(18px, 4vw, 24px); font-weight: 800; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.csarc-player-code { color: var(--csarc-accent); font-size: 13px; font-weight: 700; }
.csarc-player-actions { display: flex; gap: 8px; align-items: center; }
.csarc-framewrap {
	margin-top: 14px; border-radius: 18px; overflow: hidden; border: 1px solid var(--csarc-border);
	background: #000; aspect-ratio: 16 / 9; box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
}
.csarc-framewrap:fullscreen { border-radius: 0; }
.csarc-frame { width: 100%; height: 100%; border: 0; display: block; }
.csarc-player-desc { color: var(--csarc-text-dim); font-size: 14px; line-height: 1.55; margin: 14px 2px 0; }

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
	.csarc-app { padding: 20px 10px 28px; border-radius: 20px; }
	.csarc-card { padding: 12px; }
	.csarc-pad { gap: 6px; }
	.csarc-key { min-height: 50px; border-radius: 12px; }
	.csarc-grid { grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 10px; }
	.csarc-searchbar { flex-wrap: wrap; }
	.csarc-sort { flex: 1 1 auto; }
}
@media (max-width: 380px) {
	.csarc-grid { grid-template-columns: repeat(2, 1fr); }
	.csarc-key { min-height: 48px; font-size: 13px; }
	.csarc-key-num { font-size: 16px; }
}

/* Animations off (setting) */
.csarc-app[data-csarc-anim="0"] *, .csarc-app[data-csarc-anim="0"] *::before, .csarc-app[data-csarc-anim="0"] *::after {
	animation: none !important; transition: none !important;
}

/* Reduced motion (always respected) */
@media (prefers-reduced-motion: reduce) {
	.csarc-app *, .csarc-app *::before, .csarc-app *::after {
		animation: none !important; transition: none !important; scroll-behavior: auto !important;
	}
}

/* ================================================================
   VAULT DASHBOARD (library + player) — full-screen game portal
   ================================================================ */
.csarc-view-library,
.csarc-view-player {
	position: fixed;
	inset: 0;
	z-index: 99990;
	overflow-y: auto;
	overscroll-behavior: contain;
	background:
		radial-gradient(600px 400px at 85% -5%, var(--csarc-glow1), transparent 60%),
		radial-gradient(700px 500px at -10% 110%, var(--csarc-glow2), transparent 60%),
		linear-gradient(160deg, var(--csarc-bg2), var(--csarc-bg));
	color: var(--csarc-text);
	text-align: left;
}
.csarc-view-library[hidden],
.csarc-view-player[hidden] { display: none; }

/* ---------- top bar ---------- */
.csarc-vault-topbar {
	position: sticky;
	top: 0;
	z-index: 30;
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 12px 16px;
	background: color-mix(in srgb, var(--csarc-panel) 82%, transparent);
	-webkit-backdrop-filter: blur(14px);
	backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--csarc-border);
}
.csarc-vault-tbtn {
	position: relative;
	flex: none;
	width: 42px; height: 42px;
	display: inline-flex; align-items: center; justify-content: center;
	font-size: 17px;
	color: var(--csarc-text);
	background: var(--csarc-panel);
	border: 1px solid var(--csarc-border);
	border-radius: 12px;
	cursor: pointer;
	font-family: inherit;
}
.csarc-vault-tbtn:hover { border-color: var(--csarc-accent); }
.csarc-badge {
	position: absolute;
	top: -6px; right: -6px;
	min-width: 19px; height: 19px;
	padding: 0 5px;
	display: inline-flex; align-items: center; justify-content: center;
	font-size: 11px; font-weight: 800;
	color: #fff;
	background: #ef4444;
	border-radius: 999px;
}
.csarc-vault-searchwrap {
	position: relative;
	flex: 1 1 auto;
	max-width: 560px;
}
.csarc-vault-searchwrap .csarc-search { width: 100%; padding-right: 40px; }
.csarc-search-clear {
	position: absolute;
	top: 50%; right: 6px;
	transform: translateY(-50%);
	width: 28px; height: 28px;
	border: 0; border-radius: 8px;
	background: transparent;
	color: var(--csarc-muted);
	font-size: 13px;
	cursor: pointer;
	font-family: inherit;
}
.csarc-search-clear:hover { color: var(--csarc-text); }

/* ---------- server dropdown ---------- */
.csarc-server-wrap { position: relative; flex: none; }
.csarc-server-btn {
	display: inline-flex; align-items: center; gap: 8px;
	height: 42px;
	padding: 0 14px;
	font: 700 13.5px 'Plus Jakarta Sans', system-ui, sans-serif;
	color: var(--csarc-text);
	background: var(--csarc-panel);
	border: 1px solid var(--csarc-border);
	border-radius: 12px;
	cursor: pointer;
}
.csarc-server-btn:hover { border-color: var(--csarc-accent); }
.csarc-server-dot {
	width: 9px; height: 9px;
	border-radius: 50%;
	background: #10b981;
	box-shadow: 0 0 0 3px color-mix(in srgb, #10b981 25%, transparent);
	flex: none;
}
.csarc-server-dropdown {
	position: absolute;
	top: calc(100% + 8px);
	right: 0;
	width: min(330px, 86vw);
	padding: 8px;
	background: var(--csarc-panel-solid);
	border: 1px solid var(--csarc-border);
	border-radius: 16px;
	box-shadow: 0 24px 60px rgba(0,0,0,.45);
	z-index: 40;
}
.csarc-server-dd-head {
	display: flex; align-items: center; justify-content: space-between;
	padding: 6px 8px 10px;
}
.csarc-server-dd-title { font-weight: 800; font-size: 14px; }
.csarc-server-dd-sub { font-size: 12px; color: var(--csarc-muted); font-weight: 700; }
.csarc-server-option {
	display: flex; align-items: center; gap: 10px;
	width: 100%;
	padding: 10px;
	text-align: left;
	background: transparent;
	border: 1px solid transparent;
	border-radius: 12px;
	cursor: pointer;
	color: var(--csarc-text);
	font-family: inherit;
}
.csarc-server-option:hover { background: var(--csarc-chip); }
.csarc-server-option.csarc-server-on { border-color: var(--csarc-accent); background: var(--csarc-chip); }
.csarc-server-opt-texts { flex: 1 1 auto; display: flex; flex-direction: column; min-width: 0; }
.csarc-server-opt-name { font-weight: 800; font-size: 13.5px; }
.csarc-server-opt-tag { font-size: 12px; color: var(--csarc-muted); }
.csarc-server-opt-badge {
	flex: none;
	font-size: 10.5px; font-weight: 800;
	letter-spacing: .04em; text-transform: uppercase;
	color: var(--csarc-accent2);
	border: 1px solid var(--csarc-border);
	padding: 3px 7px;
	border-radius: 999px;
}

/* ---------- body layout: sidebar + main ---------- */
.csarc-vault-body {
	display: grid;
	grid-template-columns: 238px minmax(0, 1fr);
	gap: 20px;
	max-width: 1440px;
	margin: 0 auto;
	padding: 18px;
	align-items: start;
}
.csarc-vault-side {
	position: sticky;
	top: 84px;
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.csarc-side-item {
	display: flex; align-items: center; justify-content: space-between; gap: 8px;
	width: 100%;
	padding: 10px 12px;
	font: 700 13.5px 'Plus Jakarta Sans', system-ui, sans-serif;
	color: var(--csarc-text);
	background: transparent;
	border: 1px solid transparent;
	border-radius: 12px;
	cursor: pointer;
	text-align: left;
}
.csarc-side-item:hover { background: var(--csarc-chip); }
.csarc-side-item.csarc-side-on {
	background: var(--csarc-chip);
	border-color: var(--csarc-accent);
}
.csarc-side-count { font-size: 12px; color: var(--csarc-muted); font-weight: 800; }
.csarc-side-head {
	margin: 14px 4px 6px;
	font-size: 11px; font-weight: 800;
	letter-spacing: .12em; text-transform: uppercase;
	color: var(--csarc-muted);
}
.csarc-side-cats { display: flex; flex-direction: column; gap: 4px; }
.csarc-side-cat { font-weight: 600; font-size: 13px; padding: 8px 12px; }
.csarc-codes-panel {
	margin-top: 16px;
	padding: 12px;
	font-size: 12.5px;
	line-height: 1.55;
	color: var(--csarc-muted);
	background: var(--csarc-panel);
	border: 1px solid var(--csarc-border);
	border-radius: 14px;
}
.csarc-codes-panel strong { color: var(--csarc-text); display: block; margin-bottom: 4px; font-size: 13px; }
.csarc-codes-panel p { margin: 0; }
.csarc-vault-main { min-width: 0; }
.csarc-vault-main .csarc-grid { grid-template-columns: repeat(auto-fill, minmax(172px, 1fr)); }

/* card code badge over thumbnail */
.csarc-card-main { position: relative; }
.csarc-card-code {
	position: absolute;
	left: 8px; bottom: 44px;
	z-index: 2;
	font-size: 11px; font-weight: 800;
	color: #fff;
	background: rgba(2, 6, 23, .72);
	border: 1px solid rgba(255,255,255,.25);
	padding: 2px 7px;
	border-radius: 999px;
	pointer-events: none;
}

/* ---------- player ---------- */
.csarc-player-bar {
	position: sticky;
	top: 0;
	z-index: 30;
	display: flex; align-items: center; gap: 12px;
	padding: 12px 16px;
	background: color-mix(in srgb, var(--csarc-panel) 82%, transparent);
	-webkit-backdrop-filter: blur(14px);
	backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--csarc-border);
}
.csarc-player-meta { flex: 1 1 auto; min-width: 0; display: flex; align-items: baseline; gap: 10px; }
.csarc-player-title { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.csarc-player-code { flex: none; }
.csarc-player-actions { display: flex; align-items: center; gap: 8px; flex: none; }
.csarc-player-body {
	display: grid;
	grid-template-columns: 196px minmax(0, 1fr) 196px;
	gap: 16px;
	max-width: 1500px;
	margin: 0 auto;
	padding: 16px;
	align-items: start;
}
.csarc-rail-title {
	margin: 2px 0 10px;
	font-size: 11px; font-weight: 800;
	letter-spacing: .12em; text-transform: uppercase;
	color: var(--csarc-muted);
}
.csarc-rail-list { display: flex; flex-direction: column; gap: 12px; }
.csarc-player-center { min-width: 0; }

/* splash + loader over the frame */
.csarc-splash {
	position: absolute;
	inset: 0;
	z-index: 5;
	display: flex; align-items: center; justify-content: center;
	overflow: hidden;
	background: #020617;
}
.csarc-splash[hidden] { display: none; }
.csarc-splash-bg {
	position: absolute; inset: 0;
	width: 100%; height: 100%;
	object-fit: cover;
	filter: blur(18px) brightness(.45);
	transform: scale(1.15);
}
.csarc-splash-card {
	position: relative;
	display: flex; flex-direction: column; align-items: center; gap: 14px;
	padding: 20px;
	text-align: center;
}
.csarc-splash-thumb {
	width: min(300px, 62vw);
	aspect-ratio: 4 / 3;
	object-fit: cover;
	border-radius: 16px;
	border: 1px solid rgba(255,255,255,.25);
	box-shadow: 0 24px 60px rgba(0,0,0,.55);
}
.csarc-splash-title { margin: 0; color: #fff; font-size: clamp(19px, 3vw, 26px); font-weight: 800; }
.csarc-splash-play { font-size: 17px; padding: 13px 34px; border-radius: 999px; }
.csarc-loader {
	position: absolute;
	inset: 0;
	z-index: 6;
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
	background: rgba(2, 6, 23, .55);
	color: #fff;
	font-weight: 700;
}
.csarc-loader[hidden] { display: none; }
.csarc-loader-spin {
	width: 38px; height: 38px;
	border-radius: 50%;
	border: 4px solid rgba(255,255,255,.25);
	border-top-color: #fff;
	animation: csarc-spin .8s linear infinite;
}
@keyframes csarc-spin { to { transform: rotate(360deg); } }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
	.csarc-player-body { grid-template-columns: minmax(0, 1fr); }
	.csarc-rail { display: none; }
}
@media (max-width: 760px) {
	.csarc-vault-topbar { flex-wrap: wrap; }
	.csarc-vault-searchwrap { order: 10; flex-basis: 100%; max-width: none; }
	.csarc-vault-body { grid-template-columns: minmax(0, 1fr); padding: 12px; }
	.csarc-vault-side {
		position: static;
		flex-direction: row;
		flex-wrap: nowrap;
		overflow-x: auto;
		padding-bottom: 6px;
	}
	.csarc-side-item { flex: none; width: auto; }
	.csarc-side-head { display: none; }
	.csarc-side-cats { flex-direction: row; }
	.csarc-codes-panel { display: none; }
	.csarc-vault-main .csarc-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
	.csarc-server-label { max-width: 74px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}