/* =========================================================
   RegEx Forge – style.css
   Matching QR Forge (iqverse.net) aesthetic
   ========================================================= */

:root {
	--bg: #0d0f14;
	--bg-panel: #13161d;
	--bg-block: #191c25;
	--bg-input: #1e2230;
	--border: #252a38;
	--border-hi: #2e3448;
	--accent: #00c896;
	--accent-dark: #00e8ae;
	--accent2: #4f6ef7;
	--accent3: #a78bfa;
	--success: #4ade80;
	--warn: #facc15;
	--danger: #f87171;
	--text: #e2e6f0;
	--text-muted: #7a839a;
	--text-dim: #4a526a;
	--radius: 10px;
	--radius-sm: 6px;
	--font-mono: "JetBrains Mono", monospace;
	--font-ui: "Syne", sans-serif;
	--shadow: 0 4px 24px rgba(0, 0, 0, 0.4);

	/* token colors */
	--tok-anchor: #f87171;
	--tok-quantifier: #facc15;
	--tok-group: #4ade80;
	--tok-class: #6ee7f7;
	--tok-escape: #a78bfa;
	--tok-special: #fb923c;
	--tok-literal: #e2e6f0;
	--tok-flag: #60a5fa;
}

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	font-size: 15px;
}

body {
	background:
		radial-gradient(circle at top right, rgba(0, 200, 150, 0.12), transparent 30%),
		radial-gradient(circle at 82% 85%, rgba(79, 142, 247, 0.08), transparent 24%), var(--bg);
	color: var(--text);
	font-family: var(--font-body);
	font-weight: 400;
	line-height: 1.6;
	min-height: 100vh;
	overflow-x: hidden;
	position: relative;
}

body::before {
	content: "";
	position: fixed;
	inset: 0;
	z-index: 0;
	pointer-events: none;
	background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
	background-size: 48px 48px;
}

body::after {
	content: "";
	position: fixed;
	inset: 0;
	z-index: 0;
	pointer-events: none;
	background-image:
		radial-gradient(circle at top right, rgba(0, 200, 150, 0.18), transparent 28%),
		radial-gradient(circle at 16% 80%, rgba(79, 142, 247, 0.14), transparent 22%);
}

.cursor-glow {
	position: fixed;
	left: 0;
	top: 0;
	width: 260px;
	height: 260px;
	pointer-events: none;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(0, 200, 150, 0.22) 0%, transparent 60%);
	filter: blur(18px);
	opacity: 0;
	transform: translate(-50%, -50%);
	transition: opacity 0.24s ease;
	mix-blend-mode: screen;
	z-index: 9999;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
	width: 6px;
	height: 6px;
}
::-webkit-scrollbar-track {
	background: var(--bg-block);
}
::-webkit-scrollbar-thumb {
	background: var(--border-hi);
	border-radius: 3px;
}

/* ================================================================
   HEADER
================================================================ */
.header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(10, 10, 10, 0.85);
	backdrop-filter: blur(16px);
	-webkit-backdrop-filter: blur(16px);
	border-bottom: 1px solid var(--border);
}

.header-inner {
	max-width: 1280px;
	margin: 0 auto;
	padding: 0 28px;
	height: 58px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.logo {
	display: flex;
	align-items: center;
	gap: 10px;
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 17px;
	letter-spacing: -0.02em;
	color: var(--text);
}

.header-nav {
	display: flex;
	align-items: center;
	gap: 14px;
}
.header-nav a {
	text-decoration: none;
	margin-left: 15px;
}
.nav-tag {
	font-size: 13px;
	color: var(--text-muted);
	text-decoration: none;
	font-family: var(--font-mono);
	letter-spacing: 0.02em;
}
.nav__logo-bracket {
	color: var(--accent);
}

.btn-header {
	background: var(--accent);
	color: #0a0a0a;
	border: none;
	border-radius: var(--radius-sm);
	padding: 7px 16px;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: 13px;
	cursor: pointer;
	transition:
		background 0.15s,
		transform 0.1s;
}
.btn-header:hover {
	background: var(--accent-dark);
	transform: translateY(-1px);
}
.btn-header:active {
	transform: scale(0.97);
}

/* ================================================================
   TABS BAR
================================================================ */
.tabs-bar {
	background: var(--bg-panel);
	border-bottom: 1px solid var(--border);
	display: flex;
	align-items: stretch;
	max-width: 1280px;
	margin: 0 auto;
	width: 100%;
	padding: 0 24px;
}

/* Extend the bar visually edge-to-edge */
.tabs-bar {
	max-width: none;
	padding: 0 max(24px, calc((100% - 1280px) / 2 + 24px));
	z-index: 1;
  position: relative;
}

.tab {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 0 20px;
	height: 50px;
	background: none;
	border: none;
	border-bottom: 2px solid transparent;
	cursor: pointer;
	color: var(--text-muted);
	font-family: var(--font-ui);
	font-weight: 600;
	font-size: 0.85rem;
	transition: all 0.2s;
	letter-spacing: 0.03em;
}
.tab:hover {
	color: var(--text);
}
.tab.active {
	color: var(--accent);
	border-bottom-color: var(--accent);
}
.tab-num {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	color: var(--text-dim);
	font-weight: 400;
}
.tab.active .tab-num {
	color: var(--accent);
	opacity: 0.7;
}

/* ================================================================
   MAIN & PANEL GRID
================================================================ */
.main {
	flex: 1;
	max-width: 1280px;
	margin: 0 auto;
	width: 100%;
	padding: 28px 24px;
}
.tab-content {
	display: none;
}
.tab-content.active {
	display: block;
	animation: fadeIn 0.22s ease;
}

@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(6px);
	}
	to {
		opacity: 1;
		transform: none;
	}
}

.panel-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}

/* ================================================================
   PANELS & BLOCKS
================================================================ */
.panel {
	background: var(--bg-panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 20px;
	display: flex;
	flex-direction: column;
	gap: 16px;
	z-index: 1;
}
.panel-preview {
	gap: 16px;
}

.section-block {
	background: var(--bg-block);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.block-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
}
.block-title {
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--text-muted);
}

.header-actions {
	display: flex;
	align-items: center;
	gap: 8px;
}

/* ================================================================
   REGEX INPUT
================================================================ */
.flag-group {
	display: flex;
	gap: 4px;
}
.flag-btn {
	position: relative;
	cursor: pointer;
}
.flag-btn input {
	position: absolute;
	opacity: 0;
	width: 0;
	height: 0;
}
.flag-btn span {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 26px;
	height: 26px;
	border-radius: 5px;
	background: var(--bg-input);
	border: 1px solid var(--border);
	font-family: var(--font-mono);
	font-size: 0.75rem;
	color: var(--text-muted);
	transition: all 0.15s;
	user-select: none;
}
.flag-btn:hover span {
	border-color: var(--border-hi);
	color: var(--text);
}
.flag-btn input:checked + span {
	background: rgba(110, 231, 247, 0.12);
	border-color: var(--accent);
	color: var(--accent);
}

.regex-input-wrap {
	display: flex;
	align-items: center;
	background: var(--bg-input);
	border: 1.5px solid var(--border-hi);
	border-radius: var(--radius-sm);
	padding: 0 12px;
	gap: 4px;
	transition: border-color 0.2s;
}
.regex-input-wrap:focus-within {
	border-color: var(--accent);
}
.regex-input-wrap.error {
	border-color: var(--danger);
}

.regex-delim {
	font-family: var(--font-mono);
	font-size: 1.1rem;
	color: var(--accent);
	flex-shrink: 0;
	line-height: 1;
}
.regex-input {
	flex: 1;
	background: none;
	border: none;
	outline: none;
	font-family: var(--font-mono);
	font-size: 0.92rem;
	color: var(--text);
	padding: 11px 4px;
	caret-color: var(--accent);
}
.regex-input::placeholder {
	color: var(--text-dim);
}
.regex-flags-display {
	font-family: var(--font-mono);
	font-size: 0.8rem;
	color: var(--accent);
	flex-shrink: 0;
}

.regex-error {
	font-family: var(--font-mono);
	font-size: 0.78rem;
	color: var(--danger);
	min-height: 14px;
	padding: 2px 0;
}

/* ================================================================
   MATCH BADGE
================================================================ */
.match-badge {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	background: rgba(78, 222, 128, 0.12);
	border: 1px solid rgba(78, 222, 128, 0.3);
	color: var(--success);
	padding: 3px 8px;
	border-radius: 20px;
}
.match-badge.no-match {
	background: rgba(248, 113, 113, 0.1);
	border-color: rgba(248, 113, 113, 0.3);
	color: var(--danger);
}

/* ================================================================
   TEXTAREA
================================================================ */
.test-textarea {
	background: var(--bg-input);
	border: 1.5px solid var(--border-hi);
	border-radius: var(--radius-sm);
	color: var(--text);
	font-family: var(--font-mono);
	font-size: 0.88rem;
	padding: 10px 12px;
	resize: vertical;
	min-height: 120px;
	outline: none;
	transition: border-color 0.2s;
	width: 100%;
	line-height: 1.7;
}
.test-textarea:focus {
	border-color: var(--accent);
}
.test-textarea::placeholder {
	color: var(--text-dim);
}

/* ================================================================
   ICON BTN
================================================================ */
.icon-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	background: var(--bg-input);
	border: 1px solid var(--border);
	border-radius: 5px;
	cursor: pointer;
	color: var(--text-muted);
	transition: all 0.15s;
	flex-shrink: 0;
}
.icon-btn svg {
	width: 13px;
	height: 13px;
}
.icon-btn:hover {
	border-color: var(--accent);
	color: var(--accent);
	background: rgba(110, 231, 247, 0.08);
}

/* ================================================================
   SUBSTITUTION
================================================================ */
.toggle-label {
	display: flex;
	align-items: center;
	cursor: pointer;
}
.toggle-label input {
	display: none;
}
.toggle-slider {
	width: 36px;
	height: 20px;
	background: var(--bg-input);
	border: 1px solid var(--border);
	border-radius: 20px;
	position: relative;
	transition: all 0.2s;
}
.toggle-slider::after {
	content: "";
	position: absolute;
	top: 3px;
	left: 3px;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: var(--text-dim);
	transition: all 0.2s;
}
.toggle-label input:checked + .toggle-slider {
	background: rgba(110, 231, 247, 0.15);
	border-color: var(--accent);
}
.toggle-label input:checked + .toggle-slider::after {
	background: var(--accent);
	left: 19px;
}

.sub-input {
	background: var(--bg-input);
	border: 1.5px solid var(--border-hi);
	border-radius: var(--radius-sm);
	color: var(--text);
	font-family: var(--font-mono);
	font-size: 0.88rem;
	padding: 9px 12px;
	outline: none;
	width: 100%;
	transition: all 0.2s;
}
.sub-input:focus {
	border-color: var(--accent);
}
.sub-input:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}
.sub-result-label {
	font-size: 0.72rem;
	color: var(--text-muted);
	text-transform: uppercase;
	letter-spacing: 0.06em;
}
.sub-result {
	background: var(--bg-input);
	border-radius: var(--radius-sm);
	padding: 10px 12px;
	font-family: var(--font-mono);
	font-size: 0.88rem;
	color: var(--success);
	min-height: 38px;
	white-space: pre-wrap;
	word-break: break-all;
	border: 1px solid var(--border);
}

/* ================================================================
   GROUPS LIST
================================================================ */
.groups-list {
	display: flex;
	flex-direction: column;
	gap: 6px;
}
.group-item {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	background: var(--bg-input);
	border-radius: var(--radius-sm);
	padding: 8px 12px;
	border-left: 3px solid var(--accent3);
}
.group-idx {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	color: var(--accent3);
	flex-shrink: 0;
	padding-top: 1px;
}
.group-vals {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
}
.group-val {
	font-family: var(--font-mono);
	font-size: 0.8rem;
	background: rgba(167, 139, 250, 0.12);
	border: 1px solid rgba(167, 139, 250, 0.25);
	border-radius: 4px;
	padding: 1px 7px;
	color: var(--accent3);
}

/* ================================================================
   PREVIEW BOX
================================================================ */
.preview-box {
	background: var(--bg-input);
	border: 1.5px solid var(--border-hi);
	border-radius: var(--radius-sm);
	padding: 12px;
	min-height: 80px;
	font-family: var(--font-mono);
	font-size: 0.88rem;
	color: var(--text);
	white-space: pre-wrap;
	word-break: break-all;
	line-height: 1.8;
}
.preview-box mark {
	background: rgba(110, 231, 247, 0.22);
	color: var(--accent);
	border-radius: 3px;
	padding: 0 1px;
	border-bottom: 2px solid var(--accent);
	font-family: inherit;
	font-size: inherit;
}
.preview-box mark.group-mark {
	background: rgba(167, 139, 250, 0.18);
	color: var(--accent3);
	border-bottom-color: var(--accent3);
}
.empty-preview {
	color: var(--text-dim);
	font-family: var(--font-mono);
	font-size: 0.82rem;
}

/* ================================================================
   MATCHES LIST
================================================================ */
.matches-label {
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--text-muted);
	margin-top: 4px;
}
.matches-list {
	background: var(--bg-block);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	max-height: 220px;
	overflow-y: auto;
	padding: 6px;
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.match-item {
	background: var(--bg-input);
	border-radius: 5px;
	padding: 7px 12px;
	display: flex;
	align-items: center;
	gap: 10px;
	border-left: 3px solid var(--accent);
}
.match-idx {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	color: var(--text-dim);
	flex-shrink: 0;
	width: 24px;
}
.match-val {
	font-family: var(--font-mono);
	font-size: 0.85rem;
	color: var(--accent);
	flex: 1;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.match-pos {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	color: var(--text-dim);
	flex-shrink: 0;
}
.empty-state {
	color: var(--text-dim);
	font-size: 0.82rem;
	font-family: var(--font-mono);
	padding: 8px 4px;
}

/* ================================================================
   STATS BAR
================================================================ */
.stats-bar {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 8px;
	margin-top: 4px;
}
.stat {
	background: var(--bg-block);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	padding: 10px;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2px;
}
.stat-val {
	font-family: var(--font-mono);
	font-size: 1.1rem;
	font-weight: 700;
	color: var(--accent);
}
.stat-key {
	font-size: 0.65rem;
	text-transform: uppercase;
	letter-spacing: 0.07em;
	color: var(--text-dim);
}

/* ================================================================
   EXPLAINER TAB
================================================================ */
.explain-hint {
	font-size: 0.75rem;
	color: var(--text-dim);
	font-family: var(--font-mono);
}

.token-strip {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
	padding: 10px;
	background: var(--bg-input);
	border-radius: var(--radius-sm);
	border: 1px solid var(--border);
	min-height: 44px;
	align-items: center;
}
.token {
	font-family: var(--font-mono);
	font-size: 0.85rem;
	padding: 4px 9px;
	border-radius: 5px;
	cursor: default;
	transition: transform 0.15s;
	border: 1px solid transparent;
	position: relative;
}
.token:hover {
	transform: translateY(-2px);
}
.token.anchor {
	background: rgba(248, 113, 113, 0.15);
	color: var(--tok-anchor);
	border-color: rgba(248, 113, 113, 0.3);
}
.token.quantifier {
	background: rgba(250, 204, 21, 0.12);
	color: var(--tok-quantifier);
	border-color: rgba(250, 204, 21, 0.3);
}
.token.group {
	background: rgba(74, 222, 128, 0.12);
	color: var(--tok-group);
	border-color: rgba(74, 222, 128, 0.3);
}
.token.class {
	background: rgba(110, 231, 247, 0.12);
	color: var(--tok-class);
	border-color: rgba(110, 231, 247, 0.3);
}
.token.escape {
	background: rgba(167, 139, 250, 0.12);
	color: var(--tok-escape);
	border-color: rgba(167, 139, 250, 0.3);
}
.token.special {
	background: rgba(251, 146, 60, 0.12);
	color: var(--tok-special);
	border-color: rgba(251, 146, 60, 0.3);
}
.token.literal {
	background: rgba(226, 230, 240, 0.07);
	color: var(--tok-literal);
	border-color: rgba(226, 230, 240, 0.1);
}
.token.alternation {
	background: rgba(96, 165, 250, 0.12);
	color: #60a5fa;
	border-color: rgba(96, 165, 250, 0.3);
}

.explanation-box {
	background: var(--bg-input);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	padding: 14px;
	font-size: 0.88rem;
	line-height: 1.8;
	color: var(--text);
	font-family: var(--font-ui);
}
.explanation-box code {
	font-family: var(--font-mono);
	background: rgba(110, 231, 247, 0.1);
	color: var(--accent);
	border-radius: 3px;
	padding: 1px 5px;
	font-size: 0.82rem;
}

.steps-box {
	background: var(--bg-block);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	padding: 8px;
	display: flex;
	flex-direction: column;
	gap: 6px;
	max-height: 340px;
	overflow-y: auto;
}
.step-item {
	display: flex;
	gap: 12px;
	align-items: flex-start;
	padding: 8px 10px;
	background: var(--bg-input);
	border-radius: 5px;
	border-left: 3px solid var(--border-hi);
	animation: fadeIn 0.2s ease;
}
.step-item.anchor {
	border-left-color: var(--tok-anchor);
}
.step-item.quantifier {
	border-left-color: var(--tok-quantifier);
}
.step-item.group {
	border-left-color: var(--tok-group);
}
.step-item.class {
	border-left-color: var(--tok-class);
}
.step-item.escape {
	border-left-color: var(--tok-escape);
}
.step-item.special {
	border-left-color: var(--tok-special);
}
.step-item.alternation {
	border-left-color: #60a5fa;
}
.step-token {
	font-family: var(--font-mono);
	font-size: 0.88rem;
	font-weight: 700;
	min-width: 40px;
	flex-shrink: 0;
}
.step-desc {
	font-size: 0.82rem;
	color: var(--text-muted);
	line-height: 1.5;
}
.step-title {
	font-size: 0.78rem;
	font-weight: 700;
	color: var(--text);
	margin-bottom: 2px;
}

.cheatsheet-dynamic {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	padding: 10px;
	background: var(--bg-block);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	min-height: 50px;
}
.cs-tag {
	display: flex;
	gap: 6px;
	align-items: center;
	background: var(--bg-input);
	border: 1px solid var(--border);
	border-radius: 5px;
	padding: 5px 10px;
}
.cs-code {
	font-family: var(--font-mono);
	font-size: 0.8rem;
	color: var(--accent);
}
.cs-desc {
	font-size: 0.75rem;
	color: var(--text-muted);
}

/* ================================================================
   LIBRARY TAB
================================================================ */
.library-wrap {
	display: flex;
	flex-direction: column;
	gap: 20px;
}
.library-filter-bar {
	display: flex;
	flex-direction: column;
	gap: 12px;
}
.lib-search {
	background: var(--bg-panel);
	border: 1.5px solid var(--border-hi);
	border-radius: var(--radius-sm);
	color: var(--text);
	font-family: var(--font-ui);
	font-size: 0.9rem;
	padding: 10px 14px;
	outline: none;
	max-width: 480px;
	transition: border-color 0.2s;
}
.lib-search:focus {
	border-color: var(--accent);
}
.lib-search::placeholder {
	color: var(--text-dim);
}
.lib-categories {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.lib-cat {
	background: var(--bg-panel);
	border: 1px solid var(--border);
	border-radius: 20px;
	color: var(--text-muted);
	font-family: var(--font-ui);
	font-size: 0.78rem;
	font-weight: 600;
	padding: 4px 14px;
	cursor: pointer;
	transition: all 0.15s;
	letter-spacing: 0.03em;
}
.lib-cat:hover {
	border-color: var(--border-hi);
	color: var(--text);
}
.lib-cat.active {
	background: rgba(110, 231, 247, 0.1);
	border-color: var(--accent);
	color: var(--accent);
}

.library-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 14px;
}
.lib-card {
	background: var(--bg-panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 10px;
	transition:
		border-color 0.2s,
		transform 0.2s;
	cursor: pointer;
}
.lib-card:hover {
	border-color: var(--border-hi);
	transform: translateY(-2px);
}
.lib-card-header {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 10px;
}
.lib-card-name {
	font-weight: 700;
	font-size: 0.9rem;
	color: var(--text);
}
.lib-card-cat {
	font-family: var(--font-mono);
	font-size: 0.65rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	padding: 2px 8px;
	border-radius: 20px;
	flex-shrink: 0;
}
.cat-validation {
	background: rgba(74, 222, 128, 0.12);
	color: var(--success);
	border: 1px solid rgba(74, 222, 128, 0.25);
}
.cat-extraction {
	background: rgba(110, 231, 247, 0.12);
	color: var(--accent);
	border: 1px solid rgba(110, 231, 247, 0.25);
}
.cat-formatting {
	background: rgba(167, 139, 250, 0.12);
	color: var(--accent3);
	border: 1px solid rgba(167, 139, 250, 0.25);
}
.cat-security {
	background: rgba(248, 113, 113, 0.12);
	color: var(--danger);
	border: 1px solid rgba(248, 113, 113, 0.25);
}
.cat-web {
	background: rgba(251, 146, 60, 0.12);
	color: #fb923c;
	border: 1px solid rgba(251, 146, 60, 0.25);
}
.cat-dates {
	background: rgba(250, 204, 21, 0.12);
	color: var(--warn);
	border: 1px solid rgba(250, 204, 21, 0.25);
}

.lib-card-pattern {
	font-family: var(--font-mono);
	font-size: 0.8rem;
	color: var(--accent);
	background: var(--bg-input);
	border-radius: var(--radius-sm);
	padding: 8px 10px;
	word-break: break-all;
	line-height: 1.6;
	border: 1px solid var(--border);
}
.lib-card-desc {
	font-size: 0.8rem;
	color: var(--text-muted);
	line-height: 1.5;
}
.lib-card-actions {
	display: flex;
	gap: 6px;
	margin-top: 2px;
}
.lib-btn {
	flex: 1;
	background: var(--bg-input);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	color: var(--text-muted);
	font-family: var(--font-ui);
	font-size: 0.75rem;
	font-weight: 600;
	padding: 6px 10px;
	cursor: pointer;
	text-align: center;
	transition: all 0.15s;
}
.lib-btn:hover {
	border-color: var(--accent);
	color: var(--accent);
	background: rgba(110, 231, 247, 0.08);
}
.lib-btn.primary {
	background: rgba(110, 231, 247, 0.1);
	border-color: var(--accent);
	color: var(--accent);
}

/* ================================================================
   REFERENCE TAB
================================================================ */
.reference-wrap {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: 16px;
}
.ref-section {
	background: var(--bg-panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 16px;
}
.ref-section-title {
	font-size: 0.78rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--text-muted);
	margin-bottom: 12px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--border);
}
.ref-table {
	width: 100%;
	border-collapse: collapse;
}
.ref-table tr:not(:last-child) td {
	border-bottom: 1px solid var(--border);
}
.ref-table td {
	padding: 7px 6px;
	font-size: 0.8rem;
	vertical-align: middle;
}
.ref-table td:first-child {
	font-family: var(--font-mono);
	color: var(--accent);
	font-size: 0.85rem;
	width: 90px;
	flex-shrink: 0;
}
.ref-table td:last-child {
	color: var(--text-muted);
}

/* ================================================================
   FOOTER
================================================================ */
.footer {
	background: var(--surface-2);
	border-top: 1px solid var(--border);
	padding: 20px 16px;
	text-align: center;
	z-index: 10;
}

.footer-inner {
	max-width: var(--content-width);
	margin: 0 auto;
}
.footer-inner span {
	font-size: 12px;
	color: var(--text-muted);
}
.footer-inner a {
	color: var(--accent);
	text-decoration: none;
}
.footer-inner a:hover {
	text-decoration: underline;
}
.footer__logo {
	font-family: var(--font-mono);
	font-size: 1rem;
	color: var(--text);
	margin-bottom: 0.75rem;
}
.footer__logo a {
	color: var(--text);
	text-decoration: none;
	cursor: pointer;
}
.footer__logo a:hover {
	text-decoration: underline;
}

/* ================================================================
   TOOLTIP
================================================================ */
[data-tip] {
	position: relative;
}
[data-tip]:hover::after {
	content: attr(data-tip);
	position: absolute;
	bottom: calc(100% + 6px);
	left: 50%;
	transform: translateX(-50%);
	background: #1e2230;
	border: 1px solid var(--border-hi);
	border-radius: 5px;
	padding: 5px 10px;
	font-size: 0.72rem;
	color: var(--text);
	white-space: nowrap;
	pointer-events: none;
	z-index: 200;
	font-family: var(--font-ui);
}

/* ================================================================
   RESPONSIVE
================================================================ */
@media (max-width: 900px) {
	.panel-grid {
		grid-template-columns: 1fr;
	}
	.stats-bar {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 600px) {
	.main {
		padding: 16px 12px;
	}
	.tab {
		padding: 0 12px;
	}
	.tab-label {
		display: none;
	}
	.header-inner {
		padding: 0 12px;
	}
}