/* ================================================================
   TD DENEME v2.2 — Compact Dashboard + Exam Overlay
   ================================================================ */

/* ── Shared Tokens ────────────────────────────────── */
:root {
	--td-bg: #111827;
	--td-surface: #1f2937;
	--td-surface-hover: #283548;
	--td-accent: #3b82f6;
	--td-accent-dark: #2563eb;
	--td-accent-glow: rgba(59,130,246,0.35);
	--td-text: #f3f4f6;
	--td-text-2: #9ca3af;
	--td-text-3: #6b7280;
	--td-border: rgba(255,255,255,0.07);
	--td-border-hover: rgba(59,130,246,0.35);
	--td-r: 10px;
	--td-font: 'Nunito Sans',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
	--td-green: #34d399;
	--td-red: #f87171;
	--td-orange: #fbbf24;
}

/* ================================================================
   HUB PAGE — BASE
   ================================================================ */
.td-hub-page {
	margin: 0; padding: 0;
	min-height: 100vh;
	background: var(--td-bg);
	font-family: var(--td-font);
	color: var(--td-text-2);
	-webkit-font-smoothing: antialiased;
	text-underline-offset: 3px;
}
.td-hub-page *, .td-hub-page *::before, .td-hub-page *::after { box-sizing: border-box; }

/* ================================================================
   TOPBAR — Compact, sticky
   ================================================================ */
.td-topbar {
	position: sticky; top: 0; z-index: 100;
	background: var(--td-bg);
	border-bottom: 1px solid var(--td-border);
}
.td-topbar-inner {
	max-width: 960px;
	margin: 0 auto;
	padding: 0 20px;
	height: 56px;
	display: flex;
	align-items: center;
	gap: 20px;
}

/* Brand */
.td-brand {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	font-size: 1.05rem;
	font-weight: 700;
	color: #fff;
	text-decoration: none;
	white-space: nowrap;
	letter-spacing: -0.01em;
	transition: color 0.15s;
}
.td-brand:hover { color: #93c5fd; }
.td-brand-icon { flex-shrink: 0; opacity: 0.7; }
.td-brand:hover .td-brand-icon { opacity: 1; }

/* Search */
.td-search-wrap {
	flex: 1;
	max-width: 300px;
	position: relative;
}
.td-search-wrap svg {
	position: absolute;
	left: 11px; top: 50%;
	transform: translateY(-50%);
	color: var(--td-text-3);
	pointer-events: none;
}
#td-hub-search {
	width: 100%;
	padding: 8px 12px 8px 34px;
	background: var(--td-surface);
	border: 1px solid var(--td-border);
	border-radius: 8px;
	color: var(--td-text);
	font-size: 0.85rem;
	font-family: inherit;
	outline: none;
	transition: border-color 0.15s;
}
#td-hub-search::placeholder { color: var(--td-text-3); }
#td-hub-search:focus { border-color: var(--td-accent); }

/* Mini stats */
.td-topbar-stats {
	display: flex;
	align-items: center;
	gap: 14px;
	margin-left: auto;
}
.td-mini-stat {
	display: flex;
	flex-direction: column;
	align-items: center;
	line-height: 1;
}
.td-mini-stat span {
	font-size: 1.05rem;
	font-weight: 700;
	color: #fff;
}
.td-mini-stat small {
	font-size: 0.6rem;
	color: var(--td-text-3);
	text-transform: uppercase;
	letter-spacing: 0.06em;
	margin-top: 2px;
}
.td-mini-stat-sep {
	width: 1px;
	height: 24px;
	background: var(--td-border);
}

/* ================================================================
   NAVIGATION BAR
   ================================================================ */
.td-main-inner {
	max-width: 960px;
	margin: 0 auto;
	padding: 0 20px;
}
.td-nav {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 12px 0;
	border-bottom: 1px solid var(--td-border);
}
.td-nav-tabs {
	display: flex;
	gap: 2px;
}
.td-nav-tab {
	padding: 7px 16px;
	background: transparent;
	border: none;
	border-radius: 7px;
	color: var(--td-text-3);
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	font-family: inherit;
	transition: all 0.15s;
}
.td-nav-tab:hover { color: var(--td-text-2); background: rgba(255,255,255,0.04); }
.td-nav-tab-active {
	background: rgba(59,130,246,0.12);
	color: #60a5fa;
}

/* ================================================================
   GROUP CARDS (Level 1 — two-level navigation)
   ================================================================ */
.td-groups-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	gap: 10px;
}
.td-group-card {
	display: flex;
	align-items: center;
	gap: 14px;
	background: var(--td-surface);
	border: 1px solid var(--td-border);
	border-radius: var(--td-r);
	padding: 18px 20px;
	cursor: pointer;
	transition: all 0.15s;
}
.td-group-card:hover {
	background: var(--td-surface-hover);
	border-color: var(--td-border-hover);
}
.td-group-card.td-hidden { display: none; }
.td-group-letter {
	width: 44px; height: 44px;
	border-radius: 12px;
	background: linear-gradient(135deg, var(--td-accent), #6366f1);
	display: flex; align-items: center; justify-content: center;
	font-size: 1.2rem; font-weight: 700; color: #fff;
	flex-shrink: 0;
}
.td-group-info { flex: 1; min-width: 0; }
.td-group-name {
	font-size: 1rem; font-weight: 600;
	color: var(--td-text); margin: 0;
	white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.td-group-count {
	font-size: 0.8rem; color: var(--td-text-3); margin-top: 2px; display: block;
}
.td-group-arrow {
	color: var(--td-text-3); flex-shrink: 0;
	transition: transform 0.15s, color 0.15s;
}
.td-group-card:hover .td-group-arrow {
	color: var(--td-accent); transform: translateX(3px);
}

/* Breadcrumb navigation */
.td-breadcrumb {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 0 0 14px;
	flex-wrap: wrap;
}
.td-bc-item {
	font-size: 0.88rem;
	font-weight: 500;
	color: var(--td-text-3);
}
.td-bc-link {
	cursor: pointer;
	color: var(--td-accent);
	transition: color 0.15s;
}
.td-bc-link:hover {
	color: #93c5fd;
	text-decoration: underline;
}
.td-bc-current {
	color: var(--td-text);
	font-weight: 600;
}
.td-bc-sep {
	color: var(--td-text-3);
	font-size: 0.9rem;
}

/* Exams View Header (back button + group title) */
.td-exams-header {
	display: flex; align-items: center; gap: 12px;
	padding: 0 0 12px;
}
.td-back-btn {
	display: inline-flex; align-items: center; gap: 6px;
	background: none; border: 1px solid var(--td-border);
	border-radius: 8px; padding: 7px 14px 7px 10px;
	color: var(--td-text-2); font-size: 0.85rem; font-weight: 500;
	cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.td-back-btn svg { flex-shrink: 0; }
.td-back-btn:hover {
	border-color: var(--td-border-hover); color: var(--td-text);
}
.td-exams-group-title {
	font-size: 1.1rem; font-weight: 600; color: var(--td-text); margin: 0;
}

/* ================================================================
   PANELS (Tab content)
   ================================================================ */
.td-panel {
	display: none;
	padding: 16px 0 40px;
}
.td-panel-active { display: block; }

/* ================================================================
   EXAM CARDS — Horizontal list
   ================================================================ */
.td-exam-list {
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.td-hub-card {
	display: flex;
	align-items: center;
	justify-content: space-between;
	background: var(--td-surface);
	border: 1px solid var(--td-border);
	border-radius: var(--td-r);
	padding: 16px 20px;
	transition: background 0.15s, border-color 0.15s;
}
.td-hub-card:hover {
	background: var(--td-surface-hover);
	border-color: var(--td-border-hover);
}
.td-card-info {
	display: flex;
	flex-direction: column;
	gap: 4px;
	min-width: 0;
}
.td-card-badge {
	display: inline-flex;
	align-self: flex-start;
	padding: 2px 10px;
	background: rgba(59,130,246,0.12);
	border-radius: 10px;
	font-size: 0.68rem;
	font-weight: 600;
	color: #60a5fa;
	letter-spacing: 0.02em;
}
.td-card-title {
	font-size: 1rem;
	font-weight: 600;
	color: var(--td-text);
	margin: 0;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.td-card-meta {
	display: flex;
	gap: 6px;
	font-size: 0.8rem;
	color: var(--td-text-3);
}
.td-card-meta-dot { color: var(--td-text-3); }
.td-card-action {
	flex-shrink: 0;
	padding: 9px 24px;
	background: var(--td-accent);
	color: #fff;
	border: none;
	border-radius: 8px;
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	font-family: inherit;
	transition: background 0.15s, box-shadow 0.15s;
}
.td-card-action:hover {
	background: var(--td-accent-dark);
	box-shadow: 0 4px 14px var(--td-accent-glow);
}
.td-hub-card.td-hidden { display: none; }

/* Empty */
.td-empty-state {
	text-align: center;
	padding: 60px 20px;
	color: var(--td-text-3);
	font-style: italic;
}

/* ================================================================
   HISTORY TABLE
   ================================================================ */
.td-hub-loading { color: var(--td-text-3); }

.td-hub-history-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9rem;
}
.td-hub-history-table th {
	padding: 10px 14px;
	text-align: left;
	font-weight: 600;
	color: var(--td-text-3);
	border-bottom: 1px solid var(--td-border);
	font-size: 0.78rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
}
.td-hub-history-table td {
	padding: 12px 14px;
	border-bottom: 1px solid var(--td-border);
	color: var(--td-text-2);
}
.td-hub-history-table tr:hover td {
	background: rgba(255,255,255,0.02);
}
.td-hub-history-table .td-pct { font-weight: 700; }
.td-hub-history-table .td-pct-high { color: var(--td-green); }
.td-hub-history-table .td-pct-mid  { color: var(--td-orange); }
.td-hub-history-table .td-pct-low  { color: var(--td-red); }

.td-hub-detail-btn {
	background: rgba(59,130,246,0.1);
	color: #60a5fa;
	border: 1px solid rgba(59,130,246,0.2);
	border-radius: 6px;
	padding: 5px 12px;
	font-size: 0.8rem;
	cursor: pointer;
	font-family: inherit;
	transition: all 0.15s;
}
.td-hub-detail-btn:hover {
	background: rgba(59,130,246,0.18);
	border-color: rgba(59,130,246,0.35);
}
.td-hub-no-history {
	color: var(--td-text-3);
	font-style: italic;
	padding: 20px 0;
}

/* ── Paused Exams Section ──────────────────────────── */
.td-paused-section { margin-bottom: 24px; }
.td-paused-title {
	font-size: 0.78rem; font-weight: 700;
	color: var(--td-text-3); text-transform: uppercase;
	letter-spacing: 0.05em; margin: 0 0 10px;
}
.td-paused-card {
	display: flex; align-items: center; justify-content: space-between;
	background: var(--td-surface); border: 1px solid rgba(245,158,11,0.2);
	border-radius: var(--td-r); padding: 14px 18px; margin-bottom: 8px;
}
.td-paused-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.td-paused-name { font-size: 0.95rem; font-weight: 600; color: var(--td-text); }
.td-paused-meta { font-size: 0.8rem; color: var(--td-text-3); }
.td-paused-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.td-paused-resume {
	background: #f59e0b; color: #fff; border: none;
	border-radius: 8px; padding: 8px 18px; font-size: 0.85rem;
	font-weight: 600; cursor: pointer; font-family: inherit;
	transition: all 0.15s;
}
.td-paused-resume:hover { background: #d97706; }
.td-paused-delete {
	background: none; border: 1px solid var(--td-border);
	border-radius: 6px; color: var(--td-text-3); font-size: 1.1rem;
	width: 32px; height: 32px; cursor: pointer; transition: all 0.15s;
	display: flex; align-items: center; justify-content: center;
}
.td-paused-delete:hover { border-color: var(--td-red); color: var(--td-red); }

/* ================================================================
   FOOTER
   ================================================================ */
.td-footer {
	text-align: center;
	padding: 24px 20px;
	color: var(--td-text-3);
	font-size: 0.8rem;
	border-top: 1px solid var(--td-border);
}

/* ================================================================
   DETAIL MODAL
   ================================================================ */
.td-hub-modal {
	position: fixed; inset: 0; z-index: 100000;
	background: rgba(0,0,0,0.65);
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 20px;
}
.td-hub-modal-content {
	background: var(--td-surface);
	border: 1px solid var(--td-border);
	border-radius: 14px;
	max-width: 800px;
	width: 100%;
	max-height: 85vh;
	overflow-y: auto;
	padding: 28px;
	position: relative;
}
.td-hub-modal-close {
	position: absolute; top: 10px; right: 14px;
	background: none; border: none;
	font-size: 1.5rem;
	cursor: pointer;
	color: var(--td-text-3);
	line-height: 1;
}
.td-hub-modal-close:hover { color: var(--td-red); }

/* Modal result header */
.td-modal-result-header { text-align: center; margin-bottom: 18px; }
.td-modal-result-header h3 { margin: 0 0 4px; font-size: 1.15rem; color: var(--td-text); }
.td-modal-result-header .td-modal-date { color: var(--td-text-3); font-size: 0.85rem; }
.td-modal-pct {
	width: 90px; height: 90px; border-radius: 50%;
	background: var(--td-accent); color: #fff;
	display: flex; align-items: center; justify-content: center;
	font-size: 1.4rem; font-weight: 700;
	margin: 0 auto 14px;
}
.td-modal-pct.td-result-high { background: #22c55e; }
.td-modal-pct.td-result-mid  { background: #f97316; }
.td-modal-pct.td-result-low  { background: #ef4444; }
.td-modal-stats {
	display: flex; justify-content: center; gap: 10px;
	flex-wrap: wrap; margin-bottom: 18px;
}
.td-modal-stat {
	text-align: center; padding: 8px 12px;
	background: rgba(255,255,255,0.04); border-radius: 8px;
}
.td-modal-stat-val { font-size: 1.1rem; font-weight: 700; color: var(--td-text); }
.td-modal-stat-label { font-size: 0.7rem; color: var(--td-text-3); }

/* Dark overrides for detail review in modal */
.td-hub-modal-content .td-ov-rd-item {
	background: rgba(255,255,255,0.03);
	border-color: var(--td-border);
}
.td-hub-modal-content .td-ov-rd-qtext { color: #cbd5e1; }
.td-hub-modal-content .td-ov-rd-answer { color: var(--td-text-2); }
.td-hub-modal-content .td-ov-rd-answer strong { color: var(--td-text); }
.td-hub-modal-content .td-ov-rd-correct-ans { color: var(--td-green); }
.td-hub-modal-content .td-ov-rd-wrong-ans { color: var(--td-red); }

/* ================================================================
   HUB — MOBILE
   ================================================================ */
@media (max-width: 640px) {
	.td-topbar-inner {
		flex-wrap: wrap;
		height: auto;
		padding: 10px 16px;
		gap: 10px;
	}
	.td-brand { font-size: 0.95rem; }
	.td-search-wrap { max-width: 100%; order: 3; flex-basis: 100%; }
	.td-topbar-stats { gap: 10px; }
	.td-mini-stat span { font-size: 0.9rem; }
	.td-mini-stat-sep { height: 18px; }

	.td-main-inner { padding: 0 16px; }
	.td-nav { gap: 8px; }
	.td-groups-grid { grid-template-columns: 1fr; }
	.td-group-card { padding: 14px 16px; }
	.td-group-letter { width: 38px; height: 38px; font-size: 1rem; }
	.td-hub-card { padding: 14px 16px; }
	.td-card-action { padding: 8px 18px; font-size: 0.82rem; }

	.td-hub-history-table th:nth-child(4),
	.td-hub-history-table td:nth-child(4) { display: none; }
}


/* ================================================================
   ═══════════════════════════════════════════════════════
   FULL-SCREEN EXAM OVERLAY
   ═══════════════════════════════════════════════════════
   ================================================================ */
.td-exam-overlay {
	position: fixed; inset: 0; z-index: 999999;
	background: #f1f5f9;
	overflow: hidden;
	display: flex;
	flex-direction: column;
	font-family: var(--td-font);
}

/* ── Top Bar ─────────────────────────────────────────── */
.td-ov-topbar {
	display: flex; align-items: center; justify-content: space-between;
	background: var(--td-bg);
	color: #fff;
	padding: 0 20px; height: 56px; flex-shrink: 0;
}
.td-ov-topbar-left {
	display: flex; align-items: center; gap: 14px; min-width: 0; flex: 1;
}
.td-ov-close-btn {
	background: none; border: none; color: var(--td-text-2);
	font-size: 1.3rem; cursor: pointer; padding: 4px; line-height: 1;
	transition: color 0.15s;
}
.td-ov-close-btn:hover { color: var(--td-red); }
.td-ov-title {
	font-size: 1.05rem; font-weight: 600;
	white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.td-ov-topbar-right {
	display: flex; align-items: center; gap: 16px; flex-shrink: 0;
}
.td-ov-timer { font-size: 1.1rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.td-ov-timer.td-timer-green  { color: var(--td-green); }
.td-ov-timer.td-timer-yellow { color: #fbbf24; }
.td-ov-timer.td-timer-red    { color: var(--td-red); animation: td-pulse 1s infinite; }
@keyframes td-pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

/* Zoom controls */
.td-ov-zoom-controls { display: flex; align-items: center; gap: 4px; }
.td-ov-zoom-btn {
	width: 28px; height: 28px; border-radius: 50%;
	background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15);
	color: #fff; font-size: 1rem; font-weight: 700; line-height: 1;
	display: flex; align-items: center; justify-content: center;
	cursor: pointer; transition: all 0.15s; padding: 0;
}
.td-ov-zoom-btn:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.3); }

.td-ov-progress { font-size: 0.9rem; color: var(--td-text-2); }
.td-ov-finish-btn {
	background: #dc2626; color: #fff; border: none;
	border-radius: 8px; padding: 8px 18px;
	font-size: 0.85rem; font-weight: 600;
	cursor: pointer; font-family: inherit;
	transition: background 0.2s;
}
.td-ov-finish-btn:hover { background: #b91c1c; }

.td-ov-hamburger {
	display: none; background: none; border: none;
	color: #fff; font-size: 1.5rem; cursor: pointer; padding: 4px;
}

/* ── Body: [Main LEFT] [Optik RIGHT] ─────────────────── */
.td-ov-body { display: flex; flex: 1; overflow: hidden; position: relative; }

/* ── Main Question Area ──────────────────────────────── */
.td-ov-main {
	flex: 1; display: flex; flex-direction: column;
	overflow-y: auto; padding: 30px 40px;
}
.td-ov-question-header {
	font-size: 1.1rem; font-weight: 700; color: #0f172a;
	margin-bottom: 16px; display: flex; align-items: center; gap: 10px;
}
.td-ov-flag-btn {
	background: none; border: 1px solid #d1d5db; border-radius: 6px;
	padding: 4px 10px; font-size: 0.85rem; cursor: pointer;
	color: #9ca3af; transition: all 0.15s;
}
.td-ov-flag-btn:hover { border-color: #f59e0b; color: #f59e0b; }
.td-ov-flag-btn.td-flagged {
	background: #fef3c7; border-color: #f59e0b; color: #d97706;
}
.td-ov-question-text {
	font-size: calc(1.05rem * var(--td-zoom, 1)); line-height: 1.7; color: #334155;
	white-space: pre-wrap; margin-bottom: 16px;
}
.td-ov-question-img {
	max-width: calc(480px * var(--td-zoom, 1)); max-height: calc(260px * var(--td-zoom, 1)); object-fit: contain;
	border-radius: 8px; margin-bottom: 20px; display: block;
}

/* ── Choices ──────────────────────────────────────────── */
.td-ov-choices { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.td-ov-choice {
	display: flex; align-items: flex-start; gap: 12px;
	padding: 14px 16px; border: 2px solid #e2e8f0;
	border-radius: 12px; cursor: pointer; transition: all 0.15s; background: #fff;
}
.td-ov-choice:hover { border-color: #93c5fd; background: #f0f7ff; }
.td-ov-choice.td-choice-selected { border-color: var(--td-accent); background: #eff6ff; }
.td-ov-choice-letter {
	width: calc(32px * var(--td-zoom, 1)); height: calc(32px * var(--td-zoom, 1)); border-radius: 50%;
	background: #f1f5f9; display: flex; align-items: center; justify-content: center;
	font-weight: 700; font-size: 0.9rem; color: #64748b;
	flex-shrink: 0; transition: all 0.15s;
}
.td-ov-choice.td-choice-selected .td-ov-choice-letter {
	background: var(--td-accent); color: #fff;
}
.td-ov-choice-body { flex: 1; }
.td-ov-choice-text { font-size: calc(1rem * var(--td-zoom, 1)); color: #334155; line-height: 1.5; }
.td-ov-choice-img {
	max-width: 100%; max-height: calc(180px * var(--td-zoom, 1)); object-fit: contain;
	margin-top: 8px; border-radius: 6px;
}

/* ── Nav ─────────────────────────────────────────────── */
.td-ov-nav {
	display: flex; justify-content: space-between; align-items: center;
	margin-top: auto; padding-top: 20px; border-top: 1px solid #e2e8f0;
}
.td-ov-nav-btn {
	background: #fff; border: 2px solid var(--td-accent); color: var(--td-accent);
	border-radius: 10px; padding: 10px 24px; font-size: 0.95rem; font-weight: 600;
	cursor: pointer; transition: all 0.15s; font-family: inherit;
}
.td-ov-nav-btn:hover { background: var(--td-accent); color: #fff; }
.td-ov-nav-btn:disabled { border-color: #d1d5db; color: #d1d5db; cursor: default; background: #fff; }

/* ================================================================
   OPTIK FORM PANEL (RIGHT) — Dark sidebar
   ================================================================ */
.td-ov-optik {
	width: 260px; flex-shrink: 0; display: flex; flex-direction: column;
	background: var(--td-surface);
	border-left: 1px solid var(--td-border);
	overflow: hidden; position: relative;
}
.td-ov-optik-header {
	position: sticky; top: 0; z-index: 2;
	background: var(--td-bg);
	padding: 14px 16px;
	font-size: 0.78rem; font-weight: 700;
	color: var(--td-text-2);
	text-transform: uppercase; letter-spacing: 0.08em;
	border-bottom: 1px solid var(--td-border);
}
.td-ov-optik-sheet {
	flex: 1; overflow-y: auto; padding: 8px 10px;
	position: relative; z-index: 1;
}

/* Optik Row */
.td-optik-row {
	display: flex; align-items: center; gap: 4px;
	padding: 5px 6px; border-radius: 6px; cursor: pointer;
	transition: background 0.15s; border-left: 3px solid transparent; margin-bottom: 2px;
}
.td-optik-row:hover { background: rgba(255,255,255,0.04); }
.td-optik-row.td-optik-row-current {
	border-left-color: var(--td-accent);
	background: rgba(59,130,246,0.1);
}
.td-optik-num {
	width: 24px; font-size: 0.8rem; font-weight: 600;
	color: var(--td-text-3); text-align: center; flex-shrink: 0;
}
.td-optik-row.td-optik-row-current .td-optik-num {
	color: #93c5fd; font-weight: 700;
}
.td-optik-flag {
	width: 16px; font-size: 0.7rem; text-align: center; flex-shrink: 0;
	color: transparent; transition: color 0.15s;
}
.td-optik-flag.td-optik-flag-visible { color: #fbbf24; }

/* Optik Bubbles */
.td-optik-bubble {
	width: 28px; height: 28px; border-radius: 50%;
	border: 2px solid rgba(255,255,255,0.12);
	display: flex; align-items: center; justify-content: center;
	font-size: 0.7rem; font-weight: 700; color: var(--td-text-3);
	cursor: pointer; transition: all 0.15s; background: transparent; flex-shrink: 0;
}
.td-optik-bubble:hover {
	border-color: var(--td-accent); color: #93c5fd; background: rgba(59,130,246,0.08);
}
.td-optik-bubble.td-optik-bubble-filled {
	background: var(--td-accent); border-color: var(--td-accent);
	color: #fff; box-shadow: 0 0 8px var(--td-accent-glow);
}

/* Sidebar stats footer */
.td-ov-sidebar-stats {
	position: sticky; bottom: 0; z-index: 2;
	background: var(--td-bg);
	padding: 12px 16px;
	border-top: 1px solid var(--td-border);
	font-size: 0.85rem; color: var(--td-text-3);
}
.td-ov-sidebar-stats div { margin-bottom: 4px; }
.td-ov-sidebar-stats span { font-weight: 700; color: var(--td-text); }

/* ── Confirm Dialog ──────────────────────────────────── */
.td-ov-confirm {
	position: fixed; inset: 0; z-index: 1000000;
	background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	display: flex; align-items: center; justify-content: center;
}
.td-ov-confirm-box {
	background: #fff; border-radius: 14px; padding: 28px;
	max-width: 400px; width: 90%; text-align: center;
	box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.td-ov-confirm-box h3 { margin: 0 0 10px; font-size: 1.15rem; color: #0f172a; }
.td-ov-confirm-box p { color: #64748b; margin: 0 0 18px; line-height: 1.5; }
.td-ov-confirm-actions { display: flex; gap: 10px; justify-content: center; }
.td-ov-confirm-yes {
	background: #dc2626; color: #fff; border: none; border-radius: 10px;
	padding: 10px 22px; font-weight: 600; cursor: pointer; font-family: inherit;
	transition: background 0.15s;
}
.td-ov-confirm-yes:hover { background: #b91c1c; }
.td-ov-confirm-pause {
	background: #f59e0b; color: #fff; border: none; border-radius: 10px;
	padding: 10px 22px; font-weight: 600; cursor: pointer; font-family: inherit;
	transition: background 0.15s;
}
.td-ov-confirm-pause:hover { background: #d97706; }
.td-ov-confirm-no {
	background: #f1f5f9; color: #334155; border: none; border-radius: 10px;
	padding: 10px 22px; font-weight: 600; cursor: pointer; font-family: inherit;
	transition: background 0.15s;
}
.td-ov-confirm-no:hover { background: #e2e8f0; }

/* ── Exam Intro Popup ────────────────────────────────── */
.td-ov-intro {
	position: fixed; inset: 0; z-index: 1000000;
	background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	display: flex; align-items: center; justify-content: center;
}
.td-ov-intro-box {
	background: #fff; border-radius: 14px; padding: 32px 28px;
	max-width: 420px; width: 90%; text-align: center;
	box-shadow: 0 20px 60px rgba(0,0,0,0.2);
	animation: td-pop 0.35s ease;
}
.td-ov-intro-box h3 {
	margin: 0 0 20px; font-size: 1.2rem; color: #0f172a;
	line-height: 1.4;
}
.td-ov-intro-info {
	margin-bottom: 24px;
}
.td-ov-intro-row {
	display: flex; justify-content: space-between; align-items: center;
	padding: 10px 16px; border-radius: 8px;
	background: #f8fafc; margin-bottom: 6px;
}
.td-ov-intro-label {
	font-size: 0.9rem; color: #64748b; font-weight: 500;
}
.td-ov-intro-val {
	font-size: 0.95rem; color: #0f172a; font-weight: 700;
}
.td-ov-intro-actions {
	display: flex; flex-direction: column; gap: 10px;
}
.td-ov-intro-start {
	background: var(--td-accent); color: #fff; border: none;
	border-radius: 10px; padding: 12px 24px; font-size: 1rem;
	font-weight: 600; cursor: pointer; font-family: inherit;
	transition: background 0.15s, box-shadow 0.15s;
}
.td-ov-intro-start:hover {
	background: var(--td-accent-dark);
	box-shadow: 0 4px 16px var(--td-accent-glow);
}
.td-ov-intro-back {
	background: #f1f5f9; color: #64748b; border: none;
	border-radius: 10px; padding: 10px 24px; font-size: 0.9rem;
	font-weight: 600; cursor: pointer; font-family: inherit;
	transition: background 0.15s, color 0.15s;
}
.td-ov-intro-back:hover {
	background: #e2e8f0; color: #334155;
}

/* ── Session Restore Banner ──────────────────────────── */
.td-ov-restore {
	position: fixed; top: 70px; left: 50%; transform: translateX(-50%);
	background: #fff; border: 2px solid var(--td-accent);
	border-radius: 14px; padding: 20px 24px; z-index: 1000001;
	box-shadow: 0 8px 30px rgba(0,0,0,0.15); text-align: center; max-width: 400px;
}
.td-ov-restore h4 { margin: 0 0 8px; color: #0f172a; }
.td-ov-restore p { color: #64748b; margin: 0 0 14px; font-size: 0.9rem; }
.td-ov-restore-actions { display: flex; gap: 10px; justify-content: center; }
.td-ov-restore-yes {
	background: var(--td-accent); color: #fff; border: none;
	border-radius: 10px; padding: 8px 20px; font-weight: 600;
	cursor: pointer; font-family: inherit;
}
.td-ov-restore-no {
	background: #f1f5f9; color: #334155; border: none;
	border-radius: 10px; padding: 8px 20px; font-weight: 600;
	cursor: pointer; font-family: inherit;
}

/* ================================================================
   RESULT SCREEN — Dark (cohesive with hub)
   ================================================================ */
.td-ov-result {
	flex: 1; overflow-y: auto; padding: 40px 20px;
	text-align: center;
	background: var(--td-bg); color: var(--td-text);
}
.td-ov-result-title {
	font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 24px;
}
.td-ov-result-pct {
	width: 130px; height: 130px; border-radius: 50%;
	background: var(--td-accent); color: #fff;
	display: flex; align-items: center; justify-content: center;
	font-size: 2rem; font-weight: 700;
	margin: 0 auto 24px;
	animation: td-pop 0.5s ease;
	box-shadow: 0 0 40px var(--td-accent-glow);
}
@keyframes td-pop {
	0% { transform: scale(0.5); opacity: 0; }
	70% { transform: scale(1.1); }
	100% { transform: scale(1); opacity: 1; }
}
.td-ov-result-pct.td-result-high { background: #16a34a; box-shadow: 0 0 40px rgba(22,163,74,0.3); }
.td-ov-result-pct.td-result-mid  { background: #ea580c; box-shadow: 0 0 40px rgba(234,88,12,0.3); }
.td-ov-result-pct.td-result-low  { background: #dc2626; box-shadow: 0 0 40px rgba(220,38,38,0.3); }

.td-ov-result-stats {
	display: flex; justify-content: center; gap: 14px;
	flex-wrap: wrap; margin-bottom: 28px;
}
.td-ov-result-stat {
	background: rgba(255,255,255,0.04); border: 1px solid var(--td-border);
	border-radius: var(--td-r); padding: 12px 16px;
	min-width: 75px; text-align: center;
}
.td-ov-result-stat-val { font-size: 1.4rem; font-weight: 700; color: #fff; }
.td-ov-result-stat-label { font-size: 0.75rem; color: var(--td-text-3); margin-top: 2px; }

/* Mini question map */
.td-ov-result-map {
	display: flex; flex-wrap: wrap; justify-content: center;
	gap: 5px; margin-bottom: 22px;
}
.td-ov-result-map-item {
	width: 28px; height: 28px; border-radius: 6px;
	display: flex; align-items: center; justify-content: center;
	font-size: 0.72rem; font-weight: 700; color: #fff;
}
.td-ov-rmi-correct { background: #16a34a; }
.td-ov-rmi-wrong   { background: #dc2626; }
.td-ov-rmi-blank   { background: #475569; }

/* Detail toggle */
.td-ov-result-detail-toggle {
	background: transparent; border: 2px solid rgba(59,130,246,0.4);
	color: #93c5fd; border-radius: 10px; padding: 10px 24px;
	font-size: 0.95rem; font-weight: 600; cursor: pointer;
	margin-bottom: 18px; transition: all 0.15s; font-family: inherit;
}
.td-ov-result-detail-toggle:hover {
	background: rgba(59,130,246,0.12); border-color: var(--td-accent); color: #fff;
}
.td-ov-result-detail { text-align: left; max-width: 700px; margin: 0 auto; }
.td-ov-rd-item {
	background: rgba(255,255,255,0.03); border: 1px solid var(--td-border);
	border-radius: var(--td-r); padding: 16px 20px; margin-bottom: 10px;
}
.td-ov-rd-header {
	display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.td-ov-rd-badge {
	padding: 3px 10px; border-radius: 12px;
	font-size: 0.72rem; font-weight: 700; color: #fff;
}
.td-ov-rd-badge-correct { background: #16a34a; }
.td-ov-rd-badge-wrong   { background: #dc2626; }
.td-ov-rd-badge-blank   { background: #475569; }
.td-ov-rd-qtext {
	color: #cbd5e1; line-height: 1.6; white-space: pre-wrap; margin-bottom: 8px;
}
.td-ov-rd-qimg {
	max-width: 100%; max-height: 200px; object-fit: contain;
	margin-bottom: 8px; border-radius: 6px;
}
.td-ov-rd-answer { font-size: 0.88rem; color: var(--td-text-3); }
.td-ov-rd-answer strong { color: var(--td-text); }
.td-ov-rd-correct-ans { color: var(--td-green); font-weight: 600; }
.td-ov-rd-wrong-ans { color: #dc2626; text-decoration: line-through; margin-right: 8px; }

/* Result actions */
.td-ov-result-actions {
	display: flex; justify-content: center; gap: 14px; margin-top: 22px;
}
.td-ov-result-back {
	background: rgba(255,255,255,0.05); color: var(--td-text);
	border: 1px solid var(--td-border); border-radius: 10px;
	padding: 11px 26px; font-size: 0.95rem; font-weight: 600;
	cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.td-ov-result-back:hover { background: rgba(255,255,255,0.08); }
.td-ov-result-retry {
	background: var(--td-accent); color: #fff; border: none;
	border-radius: 10px; padding: 11px 26px; font-size: 0.95rem;
	font-weight: 600; cursor: pointer; font-family: inherit;
	transition: all 0.15s;
}
.td-ov-result-retry:hover { box-shadow: 0 4px 16px var(--td-accent-glow); }

/* ── Question transition ─────────────────────────────── */
.td-ov-main.td-fade-out { opacity: 0; transition: opacity 0.12s ease; }
.td-ov-main.td-fade-in  { opacity: 1; transition: opacity 0.12s ease; }

/* ================================================================
   OVERLAY — MOBILE
   ================================================================ */
@media (max-width: 768px) {
	.td-ov-topbar { padding: 0 12px; height: 50px; }
	.td-ov-title { font-size: 0.9rem; }
	.td-ov-finish-btn { padding: 6px 12px; font-size: 0.8rem; }
	.td-ov-hamburger { display: block; }

	/* Optik → mobile drawer */
	.td-ov-optik {
		position: fixed; bottom: 0; left: 0; right: 0;
		width: 100%; height: auto; max-height: 55vh;
		border-left: none;
		border-top: 1px solid var(--td-border);
		z-index: 1000002;
		transform: translateY(100%);
		transition: transform 0.25s ease;
		border-radius: 14px 14px 0 0;
		box-shadow: 0 -8px 30px rgba(0,0,0,0.3);
	}
	.td-ov-optik.td-sidebar-open { transform: translateY(0); }

	.td-ov-main { padding: 20px 16px; }
	.td-ov-question-text { font-size: 0.95rem; }
	.td-ov-question-img { max-width: 100%; max-height: 220px; }
	.td-ov-choice { padding: 12px; }
	.td-ov-nav-btn { padding: 8px 16px; font-size: 0.85rem; }

	.td-ov-result-stats { gap: 8px; }
	.td-ov-result-stat { min-width: 55px; padding: 10px 10px; }
	.td-ov-result-actions { flex-direction: column; gap: 10px; }
}

/* ── Drawer overlay ──────────────────────────────────── */
.td-ov-drawer-overlay {
	position: fixed; inset: 0;
	background: rgba(0,0,0,0.4);
	z-index: 1000001;
	display: none;
}
.td-ov-drawer-overlay.td-drawer-visible { display: block; }

/* ================================================================
   SCRATCHPAD (Karalama Tahtası)
   ================================================================ */

/* Toggle button active state */
.td-ov-scratch-toggle.td-ov-scratch-active {
	background: var(--td-accent);
	border-color: var(--td-accent);
}

/* Scratch layer (canvas container) */
.td-ov-scratch-layer {
	position: absolute;
	top: 0; left: 0; right: 260px; bottom: 0;
	z-index: 50;
	pointer-events: none;
	display: none;
}
.td-ov-scratch-layer.td-scratch-active {
	display: block;
	pointer-events: auto;
}
.td-ov-scratch-layer canvas {
	width: 100%; height: 100%;
	display: block;
	cursor: crosshair;
	touch-action: none;
}

/* Scratch toolbar (floating bar) */
.td-ov-scratch-toolbar {
	position: absolute;
	bottom: 16px; left: 50%;
	transform: translateX(-50%);
	display: flex; align-items: center; gap: 4px;
	padding: 6px 10px;
	background: var(--td-bg);
	border: 1px solid var(--td-border);
	border-radius: 12px;
	box-shadow: 0 4px 16px rgba(0,0,0,0.3);
	pointer-events: auto;
	z-index: 51;
}
.td-scratch-btn {
	width: 32px; height: 32px; border-radius: 8px;
	background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
	color: #fff; display: flex; align-items: center; justify-content: center;
	cursor: pointer; transition: all 0.15s; padding: 0;
}
.td-scratch-btn:hover { background: rgba(255,255,255,0.15); }
.td-scratch-btn.td-scratch-btn-active { background: var(--td-accent); border-color: var(--td-accent); }
.td-scratch-color {
	width: 22px; height: 22px; border-radius: 50%;
	border: 2px solid transparent; cursor: pointer;
	transition: all 0.15s; flex-shrink: 0;
}
.td-scratch-color:hover { border-color: rgba(255,255,255,0.4); }
.td-scratch-color.td-scratch-color-active { border-color: #fff; box-shadow: 0 0 0 2px var(--td-accent); }
.td-scratch-sep {
	width: 1px; height: 20px;
	background: rgba(255,255,255,0.12);
	margin: 0 4px;
}

/* ── Scratchpad Mobile ───────────────────────────────── */
@media (max-width: 768px) {
	.td-ov-scratch-layer { right: 0; }
	.td-scratch-btn { width: 28px; height: 28px; }
}