/* styles.css: Global styling with blue/gray palette and responsive UI */
:root{
	--bg: #0b1220;
	--panel: #0f172a;
	--muted: #9fb0c6;
	--text: #dbe3f3; /* primary text (not white) */
	--text-strong: #cfe0ff; /* headings (not pure white) */
	--text-soft: #b7c5db;
	--border: #1e293b;
	--accent: #3b82f6; /* default blue */
	--accent-weak: rgba(59,130,246,0.18);
}

/* Accent presets */
[data-accent="blue"]{ --accent:#3b82f6; --accent-weak:rgba(59,130,246,0.15); }
[data-accent="teal"]{ --accent:#14b8a6; --accent-weak:rgba(20,184,166,0.15); }
[data-accent="indigo"]{ --accent:#6366f1; --accent-weak:rgba(99,102,241,0.15); }

*{ 
	box-sizing:border-box; 
	margin: 0;
	padding: 0;
}
html{ 
	height:100%; 
	scroll-behavior: smooth;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}
body{
	height:100%; 
	margin:0; 
	font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
	background: var(--bg); 
	color: var(--text);
	line-height: 1.6;
	overflow-x: hidden;
}
main{
	padding:32px 0;
	min-height: calc(100vh - 200px);
}

/* Global link style (avoid default blue) */
main a:not(.nav-link):not(.btn):not(.chip), .card a:not(.nav-link):not(.btn):not(.chip), .site-footer a.link{
	color: var(--text-strong);
	text-decoration: underline;
	text-decoration-color: rgba(255,255,255,0.25);
	text-underline-offset: 3px;
}
main a:not(.nav-link):not(.btn):not(.chip):hover, .card a:not(.nav-link):not(.btn):not(.chip):hover, .site-footer a.link:hover{
	text-decoration-color: rgba(255,255,255,0.5);
}

.container{ width: min(1100px, 92%); margin: 0 auto; padding-left: 12px; padding-right: 12px; }

.site-header{ 
	position:sticky; 
	top:0; 
	backdrop-filter:saturate(180%) blur(20px); 
	background:rgba(15,23,42,0.85); 
	border-bottom:1px solid rgba(30,41,59,0.5); 
	z-index:100; 
	box-shadow:0 4px 20px rgba(0,0,0,0.15);
	transition: all 0.3s ease;
}
.header-inner{ 
	display:flex; 
	align-items:center; 
	justify-content:space-between; 
	gap:16px; 
	padding:14px 0; 
	flex-wrap:wrap; 
	position:relative; 
}
.brand{ 
	margin:0; 
	color:#fff; 
	text-decoration:none; 
	font-weight:700; 
	letter-spacing:0.5px; 
	font-size:clamp(1.1rem, 4vw, 1.4rem); 
	background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 50%, #93c5fd 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
	position: relative;
}
.brand::before{
	content: '';
	position: absolute;
	inset: -4px;
	background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 50%, #93c5fd 100%);
	border-radius: 10px;
	opacity: 0;
	z-index: -1;
	filter: blur(16px);
	transition: opacity 0.4s ease;
}
.brand:hover{
	transform: scale(1.03);
	background: linear-gradient(135deg, #60a5fa 0%, var(--accent) 50%, #3b82f6 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.brand:hover::before{
	opacity: 0.25;
}
.main-nav{ 
	display:flex; 
	gap:6px; 
	flex-wrap:wrap; 
	align-items:center; 
}
.nav-link{ 
	color:var(--text); 
	text-decoration:none; 
	padding:10px 18px; 
	border-radius:10px; 
	border:1px solid transparent; 
	font-size:15px; 
	font-weight:500;
	white-space:nowrap; 
	background:rgba(255,255,255,0.03);
	transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
	position:relative;
	overflow:hidden;
}
.nav-link::before{
	content:'';
	position:absolute;
	top:0;
	left:-100%;
	width:100%;
	height:100%;
	background:linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
	transition: left 0.5s ease;
}
.nav-link:hover::before{
	left:100%;
}
.nav-link:hover{ 
	background:rgba(255,255,255,0.08); 
	border-color:rgba(59,130,246,0.3); 
	color:var(--text-strong);
	transform: translateY(-1px);
	box-shadow:0 4px 12px rgba(0,0,0,0.2);
}
.nav-link:active{
	transform: translateY(0);
}
.nav-link.active{
	background:var(--accent-weak);
	border-color:var(--accent);
	color:var(--text-strong);
	box-shadow:0 2px 8px rgba(59,130,246,0.2);
}

/* Mobile hamburger menu */
.mobile-menu-toggle{ 
	display:none; 
	background:rgba(255,255,255,0.05); 
	border:1px solid rgba(255,255,255,0.1); 
	color:var(--text); 
	padding:10px 12px; 
	border-radius:10px; 
	cursor:pointer; 
	font-size:22px; 
	transition: all 0.25s ease;
	line-height:1;
	min-width:44px;
	min-height:44px;
	align-items:center;
	justify-content:center;
}
.mobile-menu-toggle:hover{
	background:rgba(255,255,255,0.1);
	border-color:rgba(59,130,246,0.4);
	transform: scale(1.05);
}
.mobile-menu-toggle:focus{ 
	outline:2px solid var(--accent); 
	outline-offset:2px; 
}
.mobile-menu-toggle:active{
	transform: scale(0.95);
}

.site-footer{ border-top:1px solid var(--border); margin-top:28px; }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; padding:14px 0; gap:10px; flex-wrap:wrap; }
.link{ color:var(--text); }

.theme-picker{ 
	display:flex; 
	align-items:center; 
	gap:8px; 
	white-space:nowrap; 
}
.theme-picker label{ 
	color:var(--text-soft); 
	font-size:14px; 
	margin:0; 
}
.theme-picker select{ 
	width:auto; 
	min-width:120px; 
	padding:8px 36px 8px 12px; 
	font-size:14px; 
	background:var(--panel); 
	border:1px solid var(--border); 
	border-radius:8px; 
	color:var(--text); 
	cursor:pointer;
	font-weight: 500;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 5.25L7 8.75L10.5 5.25' stroke='%23dbe3f3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 10px center;
	background-size: 12px;
	transition: all 0.2s ease;
}
.theme-picker select:hover{ 
	border-color:var(--accent);
	background-color: rgba(59, 130, 246, 0.06);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.theme-picker select:focus{ 
	outline: none;
	border-color:var(--accent);
	background-color: rgba(59, 130, 246, 0.08);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.theme-picker select option{
	background: var(--panel);
	color: var(--text);
	padding: 10px;
}
.theme-picker select option:checked{
	background: var(--accent);
	color: #fff;
	font-weight: 600;
}

.card{ 
	background: var(--panel); 
	border:1px solid rgba(30,41,59,0.6); 
	border-radius:16px; 
	padding:28px; 
	margin:24px 0; 
	box-shadow:
		0 4px 20px rgba(0,0,0,0.25),
		inset 0 1px 0 rgba(255,255,255,0.03);
	color:var(--text);
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
	position: relative;
	overflow: hidden;
}
.card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 2px;
	background: linear-gradient(90deg, transparent, var(--accent), transparent);
	opacity: 0;
	transition: opacity 0.3s ease;
}
.card:not(.grid.cards .card):hover{
	border-color: rgba(59,130,246,0.4);
	box-shadow:
		0 8px 30px rgba(0,0,0,0.35),
		inset 0 1px 0 rgba(255,255,255,0.05);
	transform: translateY(-2px);
}
.card:not(.grid.cards .card):hover::before {
	opacity: 1;
}
.card > h2, .card > h3 { margin-top: 0; margin-bottom:16px; }
.card h2{ font-size:1.5rem; font-weight:700; }
.card h3{ font-size:1.3rem; font-weight:600; }
.card h2, .card h3 { color: var(--text-strong); }

/* Login card specific styling */
.login-card{
	max-width: 400px;
	margin: 60px auto;
	padding: 32px;
	text-align: center;
}
.login-card h2{
	margin-bottom: 24px;
	font-size: 1.75rem;
}
.login-form{
	display: flex;
	flex-direction: column;
	gap: 20px;
	text-align: left;
}
.login-form .form-field{
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.login-form .form-field label{
	font-weight: 500;
	font-size: 14px;
	color: var(--text-soft);
	text-align: center;
}
.login-form .form-field input{
	width: 100%;
	padding: 12px 16px;
	font-size: 15px;
	text-align: center;
}
.login-form .form-field select{
	width: 100%;
	padding: 12px 16px;
	padding-right: 44px;
	font-size: 15px;
	text-align: center;
	background-position: right 16px center;
	background-size: 14px;
}
.login-form .btn{
	width: 100%;
	padding: 14px;
	font-size: 16px;
	font-weight: 600;
	margin-top: 8px;
}
.login-note{
	text-align: center;
	margin-top: 16px;
	margin-bottom: 0;
	font-size: 12px;
	line-height: 1.5;
}
.hover-lift{ transition: transform .15s ease, box-shadow .15s ease; }
.hover-lift:hover{ transform: translateY(-2px); box-shadow:0 8px 26px rgba(0,0,0,0.3); }
.fade-in{ 
	animation: fade .4s ease both; 
	will-change: opacity, transform;
}
.pop-in{ 
	animation: pop .3s ease both; 
	will-change: opacity, transform;
}
@keyframes fade{ 
	from{
		opacity:0; 
		transform: translateY(10px);
	} 
	to{
		opacity:1; 
		transform:none;
	} 
}
@keyframes pop{ 
	from{
		opacity:0; 
		transform: scale(.96);
	} 
	to{
		opacity:1; 
		transform: scale(1);
	} 
}

/* Loading states */
.loading {
	opacity: 0.6;
	pointer-events: none;
	position: relative;
}
.loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 20px;
	height: 20px;
	margin: -10px 0 0 -10px;
	border: 2px solid var(--accent);
	border-top-color: transparent;
	border-radius: 50%;
	animation: spin 0.6s linear infinite;
}
@keyframes spin {
	to { transform: rotate(360deg); }
}

.grid.cards{ display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap:16px; }
.grid.cols-2{ display:grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap:16px; }
.stack{ display:flex; flex-direction:column; gap:12px; }

.btn{ 
	background:rgba(22,32,50,0.8); 
	color:var(--text); 
	border:1px solid rgba(30,41,59,0.8); 
	border-radius:12px; 
	padding:12px 20px; 
	cursor:pointer; 
	font-weight:600; 
	text-decoration:none; 
	display:inline-block; 
	transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
	backdrop-filter: blur(5px);
	position: relative;
	overflow: hidden;
}

.btn::before {
	content: '';
	position: absolute;
	top: 0;
	left: -100%;
	width: 100%;
	height: 100%;
	background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
	transition: left 0.5s ease;
}

.btn:hover::before {
	left: 100%;
}

.btn:hover{ 
	background:rgba(30,41,59,0.9); 
	border-color:rgba(59,130,246,0.4);
	color:var(--text-strong);
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(59,130,246,0.2);
}

.btn-primary{ 
	background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%); 
	border-color: transparent; 
	color:#fff; 
	box-shadow:0 6px 20px rgba(59,130,246,0.3);
	font-weight: 700;
}

.btn-primary:hover{ 
	background: linear-gradient(135deg, #4f46e5 0%, var(--accent) 100%);
	box-shadow:0 8px 24px rgba(59,130,246,0.4); 
	transform: translateY(-3px);
	border-color: transparent;
}

.btn-secondary{ 
	background: rgba(255,255,255,0.08); 
	color:#e2e8f0; 
	border: 1px solid rgba(255,255,255,0.15);
	backdrop-filter: blur(10px);
}

.btn-secondary:hover{ 
	background: rgba(255,255,255,0.15); 
	border-color: rgba(255,255,255,0.3);
	color: #ffffff;
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn:disabled,
.btn[disabled] {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none !important;
	box-shadow: none !important;
}

.btn:disabled:hover,
.btn[disabled]:hover {
	background: inherit;
	border-color: inherit;
	transform: none;
	box-shadow: none;
}

.btn-primary:disabled:hover,
.btn-primary[disabled]:hover {
	background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
	transform: none;
}

.btn-secondary:disabled:hover,
.btn-secondary[disabled]:hover {
	background: rgba(255,255,255,0.08);
	border-color: rgba(255,255,255,0.15);
	transform: none;
}

.btn:focus-visible{ outline:3px solid var(--accent); outline-offset:2px; }

/* Status Bar */
.status-bar {
	padding: 16px 20px;
	margin: 24px 0 0;
	background: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, rgba(99,102,241,0.03) 100%);
	border: 1px solid rgba(59,130,246,0.15);
	border-radius: 12px;
	backdrop-filter: blur(10px);
}
.status-items {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 20px;
	flex-wrap: wrap;
}
.status-item {
	display: flex;
	align-items: center;
	gap: 8px;
	flex-wrap: wrap;
	justify-content: center;
}
.status-label {
	color: var(--text-soft);
	font-size: 0.85rem;
	font-weight: 500;
}
.status-value {
	color: var(--text-strong);
	font-size: 0.9rem;
	font-weight: 600;
	background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.status-divider {
	width: 1px;
	height: 20px;
	background: rgba(59,130,246,0.25);
	flex-shrink: 0;
}
@media (max-width: 640px) {
	.status-bar {
		padding: 14px 16px;
		margin: 20px 0 0;
	}
	.status-items {
		flex-direction: column;
		gap: 12px;
	}
	.status-item {
		flex-direction: column;
		gap: 4px;
		text-align: center;
		width: 100%;
	}
	.status-divider {
		width: 60px;
		height: 1px;
	}
	.status-label {
		font-size: 0.8rem;
	}
	.status-value {
		font-size: 0.85rem;
	}
}

.chips{ display:flex; gap:12px; flex-wrap:wrap; margin-top:16px; }
.chip{ 
	display:inline-flex; 
	align-items:center; 
	gap:8px; 
	padding:12px 20px; 
	background: linear-gradient(135deg, rgba(59,130,246,0.1) 0%, rgba(99,102,241,0.08) 100%);
	border:1px solid rgba(59,130,246,0.2); 
	border-radius:12px; 
	color:var(--text-strong); 
	text-decoration:none; 
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
	font-weight:600; 
	font-size:14px;
	position: relative;
	overflow: hidden;
}
.chip::before{
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 100%);
	opacity: 0;
	transition: opacity 0.3s ease;
	z-index: -1;
}
.chip:hover{ 
	background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
	border-color: var(--accent);
	color:#fff; 
	transform: translateY(-3px) scale(1.02); 
	box-shadow:0 8px 20px rgba(59,130,246,0.4);
}
.chip:hover::before{
	opacity: 1;
}

.form-grid{ display:grid; grid-template-columns: 1fr; gap:12px; align-items:center; }
.form-grid > label{ margin-top: 6px; }
.form-grid > button, .form-grid > .row-actions{ margin-top: 6px; }
.form-grid > fieldset{ grid-column: 1; }
.inline{ display:flex; gap:12px; align-items:center; }
.radio-inline{ 
	display:inline-flex; 
	align-items:center; 
	gap:8px; 
	padding:10px 16px; 
	border-radius:10px; 
	border:1px solid var(--border); 
	background:rgba(255,255,255,0.02); 
	cursor:pointer; 
	transition: all 0.2s ease;
	flex:1;
	justify-content:center;
	font-weight:500;
}
.radio-inline:hover{ 
	background:rgba(255,255,255,0.05); 
	border-color:var(--accent); 
}
.radio-inline input[type="radio"]{ 
	margin:0; 
	width:18px; 
	height:18px; 
	cursor:pointer;
	accent-color: var(--accent);
}
.radio-inline:has(input[type="radio"]:checked){ 
	background:var(--accent-weak); 
	border-color:var(--accent); 
	color:var(--text-strong);
	box-shadow:0 2px 8px rgba(59,130,246,0.15);
}
.radio-inline:has(input[type="radio"]:checked):hover{ 
	background:var(--accent-weak); 
	filter:brightness(1.1);
}
input, select, textarea{ background:#0b1220; color:var(--text); border:1px solid var(--border); border-radius:10px; padding:12px 12px; width:100%; }
textarea{ resize: vertical; }

/* Modern Dropdown/SELECT Styling */
select{
	appearance: none;
	-webkit-appearance: none;
	-moz-appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 5.25L7 8.75L10.5 5.25' stroke='%23dbe3f3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 14px center;
	background-size: 14px;
	padding-right: 40px;
	cursor: pointer;
	transition: all 0.2s ease;
	font-weight: 500;
}

select:hover{
	border-color: var(--accent);
	background-color: rgba(59, 130, 246, 0.06);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

select:focus{
	outline: none;
	border-color: var(--accent);
	background-color: rgba(59, 130, 246, 0.08);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

select:disabled{
	opacity: 0.5;
	cursor: not-allowed;
	background-color: rgba(255, 255, 255, 0.02);
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 5.25L7 8.75L10.5 5.25' stroke='%239fb0c6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

select option{
	background: var(--panel);
	color: var(--text);
	padding: 12px 14px;
	margin: 2px 0;
	border-radius: 6px;
}

select option:hover{
	background: var(--accent-weak);
}

select option:checked,
select option:focus{
	background: var(--accent);
	color: #fff;
	font-weight: 600;
}

select option:disabled{
	color: var(--muted);
	opacity: 0.6;
}
fieldset{ 
	border:1px solid var(--border); 
	border-radius:12px; 
	padding:16px; 
	background:rgba(255,255,255,0.01);
}
fieldset.inline{ 
	padding:12px 16px;
	gap:10px;
}
legend{ 
	padding:0 8px; 
	color:var(--text-strong); 
	font-weight:600;
	font-size:14px;
	margin-bottom:8px;
}
label{ font-weight:500; }
.small{ font-size:.85rem; }
.muted{ color: var(--muted); }
.hidden{ display:none; }

small.muted{ 
	color:var(--muted); 
	font-size:0.85rem; 
	line-height: 1.5;
}

.help-text {
	display: block;
	margin-top: -8px;
	margin-bottom: 8px;
}

/* Loading and empty states */
.loading{
	text-align: center;
	padding: 40px 20px;
	color: var(--muted);
}
.loading-spinner {
	display: inline-block;
	width: 40px;
	height: 40px;
	border: 4px solid var(--border);
	border-top-color: var(--accent);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
	margin-bottom: 16px;
}
@keyframes spin {
	to { transform: rotate(360deg); }
}
.empty-state{
	text-align: center;
	padding: 40px 20px;
	color: var(--muted);
}
.empty-state p{
	margin: 12px 0;
	font-size: 15px;
}
.error-state {
	text-align: center;
	padding: 40px 20px;
	color: #f87171;
	background: rgba(239, 68, 68, 0.1);
	border: 1px solid rgba(239, 68, 68, 0.3);
	border-radius: 12px;
	margin: 20px 0;
}
.error-state p {
	margin: 12px 0;
	font-size: 15px;
}
.error-state .btn {
	margin-top: 16px;
}

.test-header{ 
	display:flex; 
	justify-content:space-between; 
	align-items:center; 
	gap:12px; 
	margin-bottom:12px; 
	flex-wrap: wrap;
}

.test-header-actions {
	display: flex;
	align-items: center;
	gap: 12px;
}

#extraTimeBtn {
	font-size: 14px;
	padding: 8px 12px;
}
.timer{ font-variant-numeric: tabular-nums; background:#0b1220; padding:8px 10px; border-radius:10px; border:1px solid var(--border); }
.options{ display:grid; gap:10px; margin:12px 0; }
.option{ display:grid; grid-template-columns: 22px 1fr; align-items:center; gap:10px; padding:12px; border-radius:12px; border:1px solid var(--border); background:#0c1628; cursor:pointer; }
.option:hover{ background:#0e1a2f; border-color:#253142; }
.option input[type="radio"]{ margin:0; align-self:center; }
.option input[type="radio"]:focus-visible + span{ outline:2px dashed var(--accent); outline-offset:2px; border-radius:6px; }
.option input[type="radio"]:checked ~ span{ color:var(--text-strong); }
.option input[type="radio"]:checked { accent-color: var(--accent); }
.option:has(input[type="radio"]:checked){ border-color: var(--accent); background: var(--accent-weak); }
.option span{ display:flex; align-items:center; line-height:1.5; }
.paragraph{ background:#0c1628; border:1px solid #223049; padding:14px; border-radius:12px; margin-bottom:12px; color:var(--text); }
.hint{ background: #0a2037; border:1px dashed #1e3a5a; padding:10px 12px; border-radius:12px; color:#cfe0ff; }
.qa .btn + .hint{ margin-top: 8px; display:block; }
.qa .row-actions{ margin-top: 10px; }
.qa .hint.hidden{ display:none; }
.qa .hint:not(.hidden){ margin-top: 10px; display: block; }
.hint.visible{ display:block; }
.row-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.row-actions .btn{ flex: 0 0 auto; }

.overlay{ 
	position:fixed; 
	inset:0; 
	background:rgba(2,6,23,0.7); 
	backdrop-filter: blur(4px);
	display:flex; 
	align-items:center; 
	justify-content:center; 
	z-index: 1000;
	animation: overlayFadeIn 0.2s ease;
}

@keyframes overlayFadeIn {
	from { opacity: 0; }
	to { opacity: 1; }
}

.overlay .overlay-content{ 
	background:rgba(15,23,42,0.95); 
	border:1px solid rgba(59,130,246,0.2); 
	padding:40px 60px; 
	border-radius:16px; 
	font-weight:700;
	font-size: 3.5rem;
	text-align: center;
	color: var(--text-strong);
	box-shadow: 0 8px 32px rgba(0,0,0,0.4);
	min-width: 180px;
	min-height: 180px;
	display: flex;
	align-items: center;
	justify-content: center;
	animation: contentFadeIn 0.3s ease;
}

@keyframes contentFadeIn {
	from {
		opacity: 0;
		transform: scale(0.9);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

.countdown-text {
	display: inline-block;
	animation: countdownPulse 0.5s ease;
}

@keyframes countdownPulse {
	0% {
		opacity: 0;
		transform: scale(0.8);
	}
	50% {
		transform: scale(1.1);
	}
	100% {
		opacity: 1;
		transform: scale(1);
	}
}

.countdown-ready {
	font-size: 1.25rem;
	color: var(--text-soft);
	font-weight: 600;
	letter-spacing: 1px;
	text-transform: uppercase;
}

.countdown-number {
	font-size: 4rem;
	font-weight: 800;
	color: var(--accent);
	line-height: 1;
}

.countdown-go {
	font-size: 3rem;
	font-weight: 800;
	color: #22c55e;
	line-height: 1;
}

/* Ensure overlay hides when .hidden is present (override display:flex above) */
.overlay.hidden{ 
	display:none; 
}

/* Mobile responsive */
@media (max-width: 719px) {
	.overlay .overlay-content {
		padding: 32px 48px;
		min-width: 150px;
		min-height: 150px;
		font-size: 2.5rem;
	}
	
	.countdown-number {
		font-size: 3rem;
	}
	
	.countdown-ready {
		font-size: 1rem;
	}
	
	.countdown-go {
		font-size: 2.5rem;
	}
}

/* Sticky actions for Test area */
#testArea .row-actions{ position: sticky; bottom: 0; background: linear-gradient(to top, rgba(11,18,32,0.95), rgba(11,18,32,0.7)); padding-top:12px; border-top:1px solid var(--border); }

/* Larger inputs/selects for usability */
input, select, textarea{ font-size:16px; }

/* Homepage enhancements */
.hero{ 
	position:relative; 
	overflow:hidden; 
	background: 
		radial-gradient(ellipse 800px 600px at 20% -10%, rgba(59,130,246,0.25), transparent 70%),
		radial-gradient(ellipse 600px 500px at 80% 20%, rgba(99,102,241,0.2), transparent 70%),
		radial-gradient(ellipse 400px 400px at 50% 100%, rgba(34,211,238,0.15), transparent 70%),
		linear-gradient(135deg, rgba(15,23,42,0.95) 0%, rgba(11,18,32,0.98) 100%);
	padding: 48px 32px; 
	text-align:center;
	border: 1px solid rgba(59,130,246,0.2);
	box-shadow: 
		0 8px 32px rgba(0,0,0,0.3),
		inset 0 1px 0 rgba(255,255,255,0.05);
}
.hero::before{
	content: '';
	position: absolute;
	inset: 0;
	background: 
		radial-gradient(circle at 30% 30%, rgba(59,130,246,0.1), transparent 50%),
		radial-gradient(circle at 70% 70%, rgba(99,102,241,0.08), transparent 50%);
	pointer-events: none;
	opacity: 0.6;
}
.hero h2{ 
	font-size: clamp(1.75rem, 4vw, 2.5rem); 
	margin-bottom: 16px; 
	font-weight:800;
	line-height:1.2;
	background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 50%, #c7d2fe 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	letter-spacing: -0.5px;
	position: relative;
	z-index: 1;
}
.hero p{ 
	margin-top: 0; 
	margin-bottom: 32px; 
	font-size:1.15rem;
	line-height:1.7;
	color: var(--text-soft);
	max-width: 600px;
	margin-left: auto;
	margin-right: auto;
	position: relative;
	z-index: 1;
}
.hero-ctas{ 
	display: flex;
	justify-content: center;
	gap:16px; 
	margin-top:32px;
	position: relative;
	z-index: 1;
}
.hero-ctas .btn{ 
	min-width: 200px; 
	padding:16px 32px;
	font-size:16px;
	font-weight:600;
	border-radius: 12px;
	box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.hero-ctas .btn-primary{
	background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
	box-shadow: 0 6px 20px rgba(59,130,246,0.4);
}
.hero-ctas .btn-primary:hover{
	background: linear-gradient(135deg, #4f46e5 0%, var(--accent) 100%);
	box-shadow: 0 8px 24px rgba(59,130,246,0.5);
	transform: translateY(-3px);
}
.hero-ctas .btn-secondary{
	background: rgba(255,255,255,0.08);
	border: 1px solid rgba(255,255,255,0.15);
	color: var(--text-strong);
	backdrop-filter: blur(10px);
}
.hero-ctas .btn-secondary:hover{
	background: rgba(255,255,255,0.12);
	border-color: rgba(255,255,255,0.25);
	transform: translateY(-3px);
	box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.grid.cards{ 
	margin:32px 0;
	gap: 20px;
}
.grid.cards .card{ 
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
	border: 1px solid rgba(59,130,246,0.15);
	background: 
		linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%),
		var(--panel);
	padding:28px;
	cursor:pointer;
	text-decoration:none;
	position: relative;
	overflow: hidden;
}
.grid.cards .card::before{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: linear-gradient(90deg, var(--accent) 0%, #60a5fa 50%, var(--accent) 100%);
	opacity: 0;
	transition: opacity 0.3s ease;
}
.grid.cards .card:hover{ 
	transform: translateY(-6px); 
	border-color: rgba(59,130,246,0.4);
	box-shadow: 
		0 12px 40px rgba(0,0,0,0.4),
		0 0 0 1px rgba(59,130,246,0.1);
	background: 
		linear-gradient(135deg, rgba(59,130,246,0.08) 0%, rgba(99,102,241,0.05) 100%),
		var(--panel);
}
.grid.cards .card:hover::before{
	opacity: 1;
}
.grid.cards .card h3{
	margin-top:0;
	margin-bottom:12px;
	font-size:1.35rem;
	color:var(--text-strong);
	font-weight:700;
	background: linear-gradient(135deg, var(--text-strong) 0%, var(--accent) 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	transition: all 0.3s ease;
}
.grid.cards .card:hover h3{
	background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.grid.cards .card p{
	margin-bottom:0;
	line-height:1.7;
	color: var(--text-soft);
	font-size: 0.95rem;
}

/* Mobile-first responsive styles */
/* Tablet breakpoint */
@media (max-width: 1024px) and (min-width: 720px) {
	.container {
		width: min(900px, 94%);
	}
	.grid.cards {
		grid-template-columns: repeat(2, 1fr);
		gap: 18px;
	}
	.hero-ctas {
		flex-wrap: wrap;
	}
	.hero-ctas .btn {
		min-width: 180px;
	}
}

/* Mobile-first responsive breakpoints */
@media (max-width: 719px){
	/* Mobile navigation */
	.mobile-menu-toggle{ 
		display:flex; 
		min-width: 44px;
		min-height: 44px;
	}
	.main-nav{ 
		display:none; 
		position:absolute;
		top:100%;
		left:0;
		right:0;
		background:rgba(15,23,42,0.98);
		backdrop-filter:saturate(180%) blur(20px);
		border-bottom:1px solid rgba(30,41,59,0.5);
		flex-direction:column;
		align-items:stretch;
		padding:16px;
		gap:10px;
		box-shadow:0 8px 24px rgba(0,0,0,0.4);
		z-index:99;
		animation: slideDown 0.3s ease;
		max-height: calc(100vh - 70px);
		overflow-y: auto;
	}
	@keyframes slideDown{
		from{
			opacity:0;
			transform: translateY(-10px);
		}
		to{
			opacity:1;
			transform: translateY(0);
		}
	}
	.main-nav.nav-open{ display:flex; }
	.main-nav .nav-link{ 
		width:100%; 
		padding:14px 18px;
		text-align:center;
		border:1px solid rgba(255,255,255,0.1);
		font-size:16px;
		background:rgba(255,255,255,0.05);
	}
	.main-nav .nav-link:hover{
		background:rgba(255,255,255,0.1);
		border-color:rgba(59,130,246,0.4);
		transform: translateX(4px);
	}
	
	/* Header adjustments */
	.header-inner{ flex-wrap:nowrap; }
	.brand{ font-size:1.1rem; flex:1; }
	
	/* Container padding */
	.container{ padding-left:12px; padding-right:12px; }
	
	/* Cards */
	.card{ padding:16px; margin:12px 0; }
	
	/* Buttons - larger touch targets */
	.btn{ padding:14px 18px; font-size:16px; min-height:44px; }
	.row-actions{ flex-direction:column; gap:8px; }
	.row-actions .btn{ width:100%; }
	
	/* Forms */
	.form-grid{ gap:14px; }
	input, select, textarea{ padding:14px; font-size:16px; min-height:44px; }
	select{ 
		padding-right: 44px; 
		background-position: right 14px center;
		background-size: 14px;
	}
	
	/* Radio buttons - more compact on mobile */
	fieldset.inline{ flex-direction:column; gap:10px; align-items:stretch; padding:12px; }
	.radio-inline{ 
		font-size:14px; 
		padding:12px 14px; 
		width:100%;
	}
	.radio-inline input[type="radio"]{ 
		width:18px; 
		height:18px; 
		flex-shrink:0;
	}
	fieldset legend{ 
		font-size:14px; 
		margin-bottom:8px; 
	}
	
	/* Test controls */
	.test-header{ flex-direction:column; gap:10px; align-items:stretch; }
	.test-header #progress, .test-header #timer{ text-align:center; }
	#testArea .row-actions{ 
		flex-direction:column; 
		position:sticky;
		bottom:0;
		padding:12px 0;
	}
	#testArea .row-actions .btn{ width:100%; }
	
	/* Hero section */
	.hero{ 
		padding:32px 20px; 
		margin: 16px 0;
	}
	.hero h2{
		font-size: clamp(1.5rem, 5vw, 2rem);
		margin-bottom: 12px;
	}
	.hero p{
		font-size: 1rem;
		margin-bottom: 24px;
	}
	.hero-ctas{ 
		flex-direction:column; 
		gap: 12px;
		margin-top: 24px;
	}
	.hero-ctas .btn{ 
		width:100%; 
		min-width: auto;
		padding: 14px 24px;
	}
	
	/* Grid cards */
	.grid.cards{ 
		grid-template-columns: 1fr; 
		gap:16px; 
		margin: 24px 0;
	}
	.grid.cards .card {
		padding: 20px;
	}
	
	/* Chips */
	.chips {
		flex-wrap: wrap;
		gap: 10px;
	}
	.chip {
		padding: 12px 18px;
		font-size: 14px;
		min-height: 44px;
		display: inline-flex;
		align-items: center;
		justify-content: center;
	}
	
	/* Headings */
	h1 { font-size: clamp(1.75rem, 6vw, 2.5rem); }
	h2 { font-size: clamp(1.5rem, 5vw, 2rem); }
	h3 { font-size: clamp(1.25rem, 4vw, 1.5rem); }
	
	/* Main padding */
	main {
		padding: 20px 0;
	}
	
	/* Container adjustments */
	.container {
		width: 100%;
		padding-left: 16px;
		padding-right: 16px;
	}
	
	/* Site header */
	.site-header {
		padding: 0;
	}
	.header-inner {
		padding: 12px 16px;
	}
	
	/* Card adjustments */
	.card h2 {
		font-size: clamp(1.25rem, 5vw, 1.75rem);
	}
	.card h3 {
		font-size: clamp(1.1rem, 4vw, 1.4rem);
	}
	
	/* Form improvements */
	.form-grid label {
		font-size: 0.9rem;
	}
	
	/* Small text adjustments */
	small.muted {
		font-size: 0.8rem;
	}
	
	/* Prevent horizontal scroll */
	body {
		overflow-x: hidden;
		max-width: 100vw;
	}
	
	/* Admin items list */
	#itemsList .card{ grid-template-columns: 1fr; gap:12px; }
	#itemsList .card .row-actions{ grid-column: 1; flex-direction:column; }
	
	/* Filter controls on mobile */
	.filter-controls {
		padding: 16px;
	}
	
	.filter-grid {
		gap: 12px;
	}
	
	.filter-checkbox-group {
		flex-direction: column;
		align-items: flex-start;
		gap: 8px;
	}
	
	.filter-controls input[type="text"],
	.filter-controls select{
		background: var(--panel);
		border: 1px solid var(--border);
		color: var(--text);
		border-radius: 8px;
		min-height: 44px;
		padding: 12px 14px;
		font-size: 16px;
		width: 100%;
	}
	.filter-controls input[type="text"]:focus,
	.filter-controls select:focus{
		outline: none;
		border-color: var(--accent);
		background-color: rgba(59, 130, 246, 0.08);
		box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
	}
	.filter-controls select{
		padding-right: 44px;
		background-position: right 14px center;
	}
	.filter-controls .inline{
		display: inline-flex;
		align-items: center;
		gap: 6px;
	}
	.filter-controls input[type="checkbox"]{
		width: 18px;
		height: 18px;
		cursor: pointer;
		accent-color: var(--accent);
	}
	
	/* Footer */
	.footer-inner{ 
		flex-direction:column; 
		text-align:center; 
		gap:12px; 
		padding: 20px 0;
	}
	.theme-picker{ 
		justify-content:center; 
		width:100%; 
		flex-wrap: wrap;
		gap: 8px;
	}
	.theme-picker select{ 
		width:auto; 
		min-width:120px; 
		min-height: 44px;
	}
	
	/* Options - better touch targets */
	.option{ 
		padding:14px; 
		min-height:44px; 
		align-items:center;
		gap:12px;
	}
	.option input[type="radio"] {
		width: 20px;
		height: 20px;
		min-width: 20px;
		min-height: 20px;
	}
	
	/* Paragraph and hints */
	.paragraph {
		padding: 16px;
		font-size: 15px;
		line-height: 1.6;
	}
	.hint {
		padding: 12px 14px;
		font-size: 14px;
		line-height: 1.6;
	}
	
	/* Test header mobile */
	.test-header-actions {
		flex-direction: column;
		width: 100%;
		gap: 10px;
	}
	#extraTimeBtn {
		width: 100%;
		min-height: 44px;
	}
	.timer {
		width: 100%;
		text-align: center;
		padding: 12px;
		font-size: 1.1rem;
	}
	
	/* Results area */
	#resultsArea {
		padding: 20px 16px;
	}
	
	/* Practice area */
	#practiceArea {
		padding: 20px 16px;
	}
	#questionsContainer {
		gap: 16px;
	}
	
	/* Login card on mobile */
	.login-card{
		margin: 40px auto;
		padding: 24px 20px;
		max-width: 100%;
	}
	.login-card h2{
		font-size: 1.5rem;
		margin-bottom: 20px;
	}
	.login-form{
		gap: 16px;
	}
	.login-form .form-field input{
		padding: 14px;
		font-size: 16px;
	}
	.login-form .form-field select{
		padding: 14px;
		padding-right: 44px;
		font-size: 16px;
		background-position: right 14px center;
		background-size: 14px;
	}
	.login-form .btn{
		padding: 14px;
		font-size: 16px;
	}
	
	/* Options - better touch targets */
	.option{ 
		padding:14px; 
		min-height:44px; 
		align-items:center;
		gap:12px;
	}
	.option input[type="radio"]{ 
		width:20px; 
		height:20px; 
		margin:0;
		flex-shrink:0;
	}
	.option span{ 
		display:flex; 
		align-items:center; 
		line-height:1.5;
		word-wrap:break-word;
	}
	
	/* Typography */
	h2{ font-size:1.4rem; }
	h3{ font-size:1.2rem; }
}

/* Admin-specific styling */
#adminRoot .card{ margin-bottom: 20px; }

/* Data Actions section */
#data-actions-h + .row-actions{ display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
#data-actions-h + .row-actions input[type="file"]{ width: 100%; padding: 8px; }
#data-actions-h + .row-actions .btn{ width: 100%; }

/* Form grids in admin - fix alignment */
#adminRoot .form-grid{ display: grid; grid-template-columns: 1fr; gap: 12px; }
#adminRoot .form-grid > label{ grid-column: 1; margin-bottom: -4px; }
#adminRoot .form-grid > input,
#adminRoot .form-grid > select,
#adminRoot .form-grid > textarea,
#adminRoot .form-grid > fieldset{ grid-column: 1; }

/* Fieldset checkboxes alignment */
#adminRoot fieldset.stack{ display: flex; flex-direction: column; gap: 8px; padding: 14px; }
#adminRoot fieldset.stack .inline{ display: flex; align-items: center; gap: 8px; }
#adminRoot fieldset.stack input[type="checkbox"]{ width: auto; margin: 0; }

/* Options A-D should be in a grid */
#adminRoot .form-grid > label:has(+ #optA){ grid-column: 1; }
#optA, #optB, #optC, #optD{ grid-column: 1; }

/* Sub-questions cards */
#subQuestions > .card{ margin: 8px 0; padding: 16px; }
#subQuestions .form-grid{ gap: 10px; display: grid; grid-template-columns: 1fr; }
#subQuestions .form-grid label{ margin-bottom: 0; }
#subQuestions .form-grid input,
#subQuestions .form-grid textarea{ width: 100%; }
#subQuestions .form-grid .row-actions{ grid-column: 1; margin-top: 8px; }

@media (min-width: 720px){
	#subQuestions .form-grid{ grid-template-columns: 140px 1fr; gap: 14px 16px; }
	#subQuestions .form-grid > label{ text-align: right; padding-top: 14px; }
	#subQuestions .form-grid > input,
	#subQuestions .form-grid > textarea,
	#subQuestions .form-grid > .row-actions{ grid-column: 2; }
	#subQuestions .form-grid > .row-actions{ grid-column: 1 / -1; }
}

/* Row actions alignment */
#adminRoot .row-actions{ display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
#adminRoot .row-actions .btn{ flex: 1 1 auto; min-width: 120px; }

/* Filter controls styling */
.filter-controls {
	background: rgba(255,255,255,0.02);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 20px;
	margin-bottom: 20px;
}

.filter-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 16px;
}

.filter-checkbox-group {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

.filter-controls label {
	display: block;
	margin-bottom: 6px;
	font-weight: 500;
	color: var(--text-soft);
}

.filter-controls input[type="text"],
.filter-controls select {
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--text);
	border-radius: 8px;
	min-height: 44px;
	padding: 12px 14px;
	font-size: 16px;
	width: 100%;
	transition: all 0.2s ease;
}

.filter-controls input[type="text"]:focus,
.filter-controls select:focus {
	outline: none;
	border-color: var(--accent);
	background-color: rgba(59, 130, 246, 0.08);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.filter-controls select {
	padding-right: 44px;
	background-position: right 14px center;
}

.filter-controls .inline {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	cursor: pointer;
}

.filter-controls input[type="checkbox"] {
	width: 18px;
	height: 18px;
	cursor: pointer;
	accent-color: var(--accent);
}

#filterResults {
	margin-top: 4px;
}

/* Analytics section */
#analytics ul{ list-style: none; padding: 0; margin: 0; }
#analytics ul li{ padding: 6px 0; border-bottom: 1px solid var(--border); }
#analytics ul li:last-child{ border-bottom: none; }
#analytics h3{ margin-top: 16px; margin-bottom: 8px; }

/* Items list layout */
#itemsList .card{ display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: start; padding: 16px; }
#itemsList .card > div:first-child{ grid-column: 1; }
#itemsList .card .row-actions{ grid-column: 2; justify-content: flex-end; flex-wrap: nowrap; }
#itemsList .card .muted{ margin-top: 4px; }

/* Responsive adjustments */
@media (min-width: 720px){
	#adminRoot .form-grid{ grid-template-columns: 140px 1fr; gap: 14px 16px; }
	#adminRoot .form-grid > label{ text-align: right; padding-top: 14px; }
	#adminRoot .form-grid > input,
	#adminRoot .form-grid > select,
	#adminRoot .form-grid > textarea,
	#adminRoot .form-grid > fieldset{ grid-column: 2; }
	#adminRoot .form-grid > .row-actions{ grid-column: 1 / -1; }
	#adminRoot .form-grid > label:has(+ #optA){ grid-column: 1; text-align: right; }
	#optA, #optB, #optC, #optD{ grid-column: 2; }
	
	#data-actions-h + .row-actions{ flex-direction: row; }
	#data-actions-h + .row-actions .btn{ width: auto; flex: 1; }
	
	/* Filter controls on desktop */
	.filter-grid{
		grid-template-columns: 2fr 1fr 1fr 1fr;
	}
	
	.filter-checkbox-group {
		flex-direction: row;
	}
}

/* Focus styles for accessibility */
*:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
	border-radius: 4px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}