.spq-app, .spq-dashboard {
	--spq-primary: #AD5207;
	--spq-secondary: #0a59c2;
	--spq-page-bg: #f4f5f7;
	--spq-card-bg: #ffffff;
	--spq-text: #24292f;
	--spq-muted-text: #556;
	--spq-border: #e3e5e8;
	--spq-button-text: #ffffff;
	--spq-button-bg: #AD5207;
	--spq-button-hover-bg: #8a4106;
	--spq-button-hover-text: #ffffff;
	--spq-read: #1e8e3e;
	--spq-unread: #8a8f98;
	--spq-important: #AD5207;
	--spq-subtopic: #0a59c2;
	--spq-subtopic-bg: #eef4ff;
	--spq-locked-bg: #f7f7f8;
	--spq-radius: 14px;
	--spq-font-size: 15px;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	font-size: var(--spq-font-size);
	color: var(--spq-text);
}
.spq-loading, .spq-empty, .spq-error {
	padding: 26px;
	text-align: center;
	color: var(--spq-muted-text);
	background: var(--spq-card-bg);
	border-radius: var(--spq-radius);
	border: 1px solid var(--spq-border);
}
.spq-error { color: #c0392b; }

.spq-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 20px;
	border-radius: 9px;
	border: 1px solid var(--spq-border);
	background: var(--spq-card-bg);
	color: var(--spq-text);
	font-weight: 600;
	font-size: 14px;
	cursor: pointer;
	text-decoration: none;
	box-shadow: 0 1px 2px rgba(16,24,40,.06);
	transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.spq-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 4px 10px rgba(16,24,40,.10); }
.spq-btn:active:not(:disabled) { transform: translateY(0); box-shadow: 0 1px 2px rgba(16,24,40,.08); }
.spq-btn:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }
.spq-btn-primary {
	background: linear-gradient(180deg, var(--spq-button-bg), color-mix(in srgb, var(--spq-button-bg) 80%, black));
	border-color: transparent;
	color: var(--spq-button-text);
}
.spq-btn-primary:hover:not(:disabled) {
	background: linear-gradient(180deg, var(--spq-button-hover-bg), color-mix(in srgb, var(--spq-button-hover-bg) 80%, black));
	color: var(--spq-button-hover-text);
}
.spq-btn-mark-important {
	background: var(--spq-card-bg);
}
.spq-btn-mark-important:hover:not(:disabled) {
	background: color-mix(in srgb, var(--spq-button-hover-bg) 12%, var(--spq-card-bg));
	border-color: var(--spq-button-hover-bg);
	color: var(--spq-button-hover-bg);
}
.spq-btn-mark-important.is-active {
	background: linear-gradient(180deg, var(--spq-important), color-mix(in srgb, var(--spq-important) 75%, black));
	border-color: color-mix(in srgb, var(--spq-important) 70%, black);
	color: var(--spq-button-text);
	box-shadow: 0 2px 8px color-mix(in srgb, var(--spq-important) 45%, transparent);
}
.spq-btn-mark-important.is-active:hover:not(:disabled) {
	background: linear-gradient(180deg, var(--spq-button-hover-bg), color-mix(in srgb, var(--spq-button-hover-bg) 75%, black));
	border-color: color-mix(in srgb, var(--spq-button-hover-bg) 70%, black);
	color: var(--spq-button-hover-text);
}

/* ---- Dashboard ---- */
.spq-subject-block { margin-bottom: 30px; }
.spq-subject-title {
	color: var(--spq-primary);
	border-bottom: 2px solid #f0f0f0;
	padding-bottom: 10px;
	font-size: 20px;
}
.spq-test-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.spq-test-card {
	border: 1px solid var(--spq-border);
	border-radius: var(--spq-radius);
	padding: 16px 18px;
	background: var(--spq-card-bg);
	box-shadow: 0 1px 3px rgba(16,24,40,.05), 0 8px 20px rgba(16,24,40,.03);
	transition: transform .15s ease, box-shadow .15s ease;
}
.spq-test-card:hover { transform: translateY(-3px); box-shadow: 0 4px 8px rgba(16,24,40,.08), 0 14px 28px rgba(16,24,40,.08); }
.spq-test-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; gap: 8px; }
.spq-test-card-title { font-weight: 700; }
.spq-badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; color: #fff; white-space: nowrap; box-shadow: 0 1px 2px rgba(0,0,0,.15); }
.spq-badge-free { background: linear-gradient(180deg, #34c265, #1e8e3e); }
.spq-badge-premium { background: linear-gradient(180deg, color-mix(in srgb, var(--spq-secondary) 85%, white), var(--spq-secondary)); }
.spq-test-card-meta { display: flex; gap: 10px; font-size: 12.5px; color: var(--spq-muted-text); margin-bottom: 14px; }
.spq-dashboard-active-wrap { margin-top: 34px; border-top: 2px dashed #e4e7ec; padding-top: 24px; }

/* ---- Reader layout ---- */
.spq-reader { display: flex; gap: 24px; align-items: flex-start; }
.spq-reader-main { flex: 1 1 auto; min-width: 0; }
.spq-reader-side {
	flex: 0 0 170px;
	background: var(--spq-card-bg);
	border: 4px double var(--spq-secondary);
	border-radius: var(--spq-radius);
	padding: 14px;
	box-shadow: 0 1px 3px rgba(16,24,40,.05);
	position: sticky;
	top: 16px;
}
.spq-reader-title {
	margin: 0 0 20px;
	color: var(--spq-primary);
	font-size: 23px;
	font-weight: 800;
	text-align: center;
	letter-spacing: .02em;
	padding: 14px 22px;
	background: var(--spq-card-bg);
	border: 4px double var(--spq-primary);
	border-radius: 14px;
	text-shadow: 0 1px 0 rgba(255,255,255,.7), 0 2px 4px rgba(16,24,40,.18);
	box-shadow: 0 3px 0 color-mix(in srgb, var(--spq-primary) 55%, black), 0 10px 22px rgba(16,24,40,.14), inset 0 1px 0 rgba(255,255,255,.5);
}

.spq-card {
	border: 4px double var(--spq-primary);
	border-radius: var(--spq-radius);
	padding: 24px 26px;
	background: var(--spq-card-bg);
	box-shadow: 0 1px 2px rgba(16,24,40,.04), 0 14px 30px rgba(16,24,40,.12), inset 0 0 0 1px color-mix(in srgb, var(--spq-primary) 18%, transparent);
}
.spq-card-top { margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.spq-card-divider {
	height: 1px;
	margin: 4px 0 18px;
	background: linear-gradient(90deg,
		transparent 0%,
		color-mix(in srgb, var(--spq-primary) 45%, transparent) 15%,
		color-mix(in srgb, var(--spq-primary) 65%, transparent) 50%,
		color-mix(in srgb, var(--spq-primary) 45%, transparent) 85%,
		transparent 100%);
}
.spq-lang-switch { display: flex; align-items: center; gap: 6px; }
.spq-lang-switch label {
	font-size: 11.5px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: .04em;
	color: var(--spq-muted-text);
}
.spq-lang-switch select {
	appearance: none;
	-webkit-appearance: none;
	font-size: 12.5px;
	font-weight: 700;
	padding: 7px 30px 7px 12px;
	border-radius: 9px;
	border: 1px solid color-mix(in srgb, var(--spq-primary) 35%, var(--spq-border));
	background:
		url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='%23667' d='M5.5 7.5l4.5 5 4.5-5z'/></svg>") no-repeat right 9px center / 11px,
		linear-gradient(180deg, #ffffff, #eef0f4);
	color: var(--spq-text);
	cursor: pointer;
	box-shadow:
		0 1px 0 rgba(255,255,255,.8) inset,
		0 -2px 3px rgba(16,24,40,.08) inset,
		0 2px 0 rgba(16,24,40,.08),
		0 4px 8px rgba(16,24,40,.12);
	transition: transform .12s ease, box-shadow .12s ease, background .2s ease, border-color .2s ease;
}
.spq-lang-switch select:hover {
	transform: translateY(-1px);
	border-color: color-mix(in srgb, var(--spq-primary) 55%, var(--spq-border));
	box-shadow:
		0 1px 0 rgba(255,255,255,.8) inset,
		0 -2px 3px rgba(16,24,40,.08) inset,
		0 3px 0 rgba(16,24,40,.1),
		0 6px 14px rgba(16,24,40,.16);
}
.spq-lang-switch select:active {
	transform: translateY(1px);
	background: linear-gradient(180deg, #eef0f4, #ffffff);
	box-shadow:
		0 1px 2px rgba(16,24,40,.12) inset,
		0 1px 0 rgba(16,24,40,.06);
}
.spq-lang-switch select:focus-visible {
	outline: none;
	border-color: var(--spq-primary);
	box-shadow:
		0 1px 0 rgba(255,255,255,.8) inset,
		0 -2px 3px rgba(16,24,40,.08) inset,
		0 2px 0 rgba(16,24,40,.08),
		0 0 0 3px color-mix(in srgb, var(--spq-primary) 22%, transparent),
		0 4px 8px rgba(16,24,40,.12);
}
.spq-lang-switch select option { font-weight: 600; background: var(--spq-card-bg); color: var(--spq-text); }
.spq-lang-loading {
	font-size: 12.5px;
	font-weight: 600;
	color: var(--spq-secondary);
	background: color-mix(in srgb, var(--spq-secondary) 10%, white);
	border: 1px solid color-mix(in srgb, var(--spq-secondary) 30%, white);
	border-radius: 8px;
	padding: 6px 10px;
	margin-bottom: 12px;
}
.spq-card-subtopic {
	display: table;
	margin-left: auto;
	margin-right: auto;
	text-align: center;
	font-size: 13px;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: .04em;
	color: var(--spq-subtopic);
	background: var(--spq-subtopic-bg);
	border: 1px solid color-mix(in srgb, var(--spq-subtopic) 30%, white);
	padding: 5px 12px;
	border-radius: 20px;
	margin-bottom: 10px;
}
.spq-q-index {
	display: inline-block;
	font-size: 12px;
	font-weight: 800;
	color: #fff;
	background: linear-gradient(180deg, var(--spq-secondary), color-mix(in srgb, var(--spq-secondary) 75%, black));
	padding: 5px 12px;
	border-radius: 20px;
	text-transform: uppercase;
	letter-spacing: .04em;
	box-shadow: 0 2px 6px rgba(10,89,194,.3);
}

.spq-q-block {
	font-size: calc(var(--spq-font-size) + 2px);
	line-height: 1.7;
	margin-bottom: 18px;
	font-weight: 400;
	letter-spacing: normal;
	color: var(--spq-text);
}
.spq-q-block strong, .spq-q-block b { font-weight: 600; }
.spq-answer-block, .spq-explanation-block {
	border-radius: 10px;
	padding: 14px 16px;
	margin-bottom: 14px;
	line-height: 1.7;
	box-shadow: inset 0 1px 2px rgba(16,24,40,.04);
}
.spq-answer-block {
	background: linear-gradient(180deg, #eafaf0, #ddf5e6);
	border: 1px solid #bfe8cf;
	border-left: 4px solid #1e8e3e;
}
.spq-explanation-block {
	background: linear-gradient(180deg, #f2f6ff, #e8f0ff);
	border: 1px solid #cddcfb;
	border-left: 4px solid var(--spq-secondary);
}
.spq-label { display: block; font-size: 11.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; color: #556; margin-bottom: 6px; }

.spq-explanation-wrap { margin-bottom: 14px; }
.spq-btn-show-answer {
	width: auto;
	display: inline-flex;
	margin-right: auto;
	padding: 8px 16px;
	font-size: 13px;
}

/* Tables pasted into question/answer/explanation content */
.spq-q-block table, .spq-answer-block table, .spq-explanation-block table {
	border-collapse: collapse;
	margin: 10px 0;
	width: 100%;
	background: #fff;
	border-radius: 8px;
	overflow: hidden;
	box-shadow: 0 1px 3px rgba(16,24,40,.08);
}
.spq-q-block table td, .spq-q-block table th,
.spq-answer-block table td, .spq-answer-block table th,
.spq-explanation-block table td, .spq-explanation-block table th {
	border: 1px solid #d9dee3;
	padding: 8px 12px;
	text-align: left;
	vertical-align: top;
}
.spq-q-block table th, .spq-answer-block table th, .spq-explanation-block table th {
	background: #f3f4f6;
	font-weight: 700;
}

.spq-card-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 16px 0 8px; }
.spq-login-hint { font-size: 13px; color: #888; align-self: center; }
.spq-read-indicator { font-size: 13px; font-weight: 600; color: var(--spq-unread); }
.spq-read-indicator.is-read { color: var(--spq-read); }

.spq-nav-row {
	display: flex;
	justify-content: space-between;
	gap: 12px;
	margin-top: 20px;
	padding-top: 18px;
	border-top: none;
	position: relative;
}
.spq-nav-row::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 2px;
	background: linear-gradient(90deg,
		transparent 0%,
		color-mix(in srgb, var(--spq-secondary) 55%, transparent) 20%,
		color-mix(in srgb, var(--spq-secondary) 80%, transparent) 50%,
		color-mix(in srgb, var(--spq-secondary) 55%, transparent) 80%,
		transparent 100%);
	border-radius: 2px;
}

.spq-locked-box {
	text-align: center;
	padding: 34px 16px;
	background: var(--spq-locked-bg);
	border: 1px dashed var(--spq-border);
	border-radius: 12px;
	margin-bottom: 18px;
}
.spq-locked-box p { color: var(--spq-muted-text); margin-bottom: 16px; }
.spq-locked-plan {
	font-size: 13.5px;
	color: var(--spq-text) !important;
	margin-top: -8px !important;
	margin-bottom: 20px !important;
}
.spq-locked-plan strong { color: var(--spq-primary); }
.spq-locked-actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 10px;
}
.spq-btn-outline {
	background: transparent;
	border: 1px solid var(--spq-border);
	color: var(--spq-text);
}
.spq-btn-outline:hover:not(:disabled) {
	background: color-mix(in srgb, var(--spq-button-hover-bg) 8%, transparent);
	border-color: var(--spq-button-hover-bg);
	color: var(--spq-button-hover-bg);
	text-decoration: none;
}
.spq-btn-unlock {
	background: linear-gradient(180deg, var(--spq-button-bg), color-mix(in srgb, var(--spq-button-bg) 80%, black));
	border-color: transparent;
	color: var(--spq-button-text);
	text-decoration: none;
}
.spq-btn-unlock:hover:not(:disabled) {
	background: linear-gradient(180deg, var(--spq-button-hover-bg), color-mix(in srgb, var(--spq-button-hover-bg) 80%, black));
	color: var(--spq-button-hover-text);
	text-decoration: none;
}

/* ---- Palette ---- */
.spq-side-legend { display: flex; flex-direction: column; gap: 7px; font-size: 12.5px; color: var(--spq-muted-text); margin-bottom: 14px; }
.spq-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: middle; box-shadow: 0 0 0 2px #fff, 0 0 0 3px rgba(0,0,0,.06); }
.spq-dot-unread { background: var(--spq-unread); }
.spq-dot-read { background: var(--spq-read); }
.spq-dot-important { background: linear-gradient(180deg, var(--spq-important), color-mix(in srgb, var(--spq-important) 75%, black)); }

.spq-palette-filter { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.spq-filter-btn {
	flex: 1 1 auto;
	padding: 7px 8px;
	border-radius: 8px;
	border: 1px solid #d9dee3;
	background: #f7f8fa;
	color: #445;
	font-size: 12px;
	font-weight: 700;
	cursor: pointer;
	white-space: nowrap;
	transition: background .12s ease, color .12s ease, box-shadow .12s ease;
}
.spq-filter-btn:hover:not(.is-active) {
	background: color-mix(in srgb, var(--spq-button-hover-bg) 15%, #f7f8fa);
	color: var(--spq-button-hover-bg);
}
.spq-filter-btn.is-active {
	background: linear-gradient(180deg, var(--spq-secondary), color-mix(in srgb, var(--spq-secondary) 75%, black));
	border-color: transparent;
	color: #fff;
	box-shadow: 0 2px 6px rgba(10,89,194,.35);
}
.spq-palette-empty { font-size: 12.5px; color: var(--spq-muted-text); text-align: center; padding: 14px 6px; }

.spq-palette {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 6px;
	max-height: 480px;
	overflow-y: auto;
	padding: 2px 4px 2px 2px;
}
.spq-palette-subtopic {
	grid-column: 1 / -1;
	font-size: 11px;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: .04em;
	color: #667;
	margin: 6px 0 0;
	padding-bottom: 4px;
	border-bottom: 1px solid #e6e8ec;
}
.spq-palette-subtopic:first-child { margin-top: 0; }
.spq-palette-btn {
	position: relative;
	box-sizing: border-box;
	width: 100%;
	height: 34px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 8px;
	border: 1px solid #d9dee3;
	background: linear-gradient(180deg, #ffffff, #f3f4f6);
	color: #445;
	font-weight: 700;
	font-size: 12px;
	line-height: 1;
	cursor: pointer;
	box-shadow: 0 1px 2px rgba(16,24,40,.06), inset 0 1px 0 rgba(255,255,255,.6);
	transition: transform .1s ease, box-shadow .1s ease;
}
.spq-palette-btn span {
	white-space: nowrap;
	font-variant-numeric: tabular-nums;
}
.spq-palette-btn:hover:not(.is-read):not(.is-important) {
	transform: translateY(-2px);
	box-shadow: 0 4px 10px rgba(16,24,40,.12);
	border-color: var(--spq-button-hover-bg);
	color: var(--spq-button-hover-bg);
}
.spq-palette-btn.is-read:hover,
.spq-palette-btn.is-important:hover {
	transform: translateY(-2px);
	box-shadow: 0 4px 10px rgba(16,24,40,.12);
}
.spq-palette-btn.is-read {
	background: linear-gradient(180deg, color-mix(in srgb, var(--spq-read) 60%, white), var(--spq-read));
	border-color: var(--spq-read);
	color: var(--spq-button-text);
}
.spq-palette-btn.is-unread { background: linear-gradient(180deg, #ffffff, #f3f4f6); }
.spq-palette-btn.is-current {
	outline: 2px solid var(--spq-secondary);
	outline-offset: 2px;
	box-shadow: 0 0 0 4px rgba(10,89,194,.15), 0 2px 6px rgba(16,24,40,.12);
}
.spq-palette-btn.is-important {
	background: linear-gradient(145deg, color-mix(in srgb, var(--spq-important) 60%, white), var(--spq-important)) !important;
	border-color: color-mix(in srgb, var(--spq-important) 70%, black) !important;
	color: var(--spq-button-text) !important;
	box-shadow: 0 2px 8px color-mix(in srgb, var(--spq-important) 50%, transparent), inset 0 1px 0 rgba(255,255,255,.5);
}
.spq-palette-btn.is-important span {
	color: var(--spq-button-text) !important;
	text-shadow: 0 1px 1px rgba(0,0,0,.25);
}
/*
 * A question is marked "read" automatically the moment it's viewed - before
 * the user ever gets a chance to click "Mark Important" - so by the time a
 * button carries .is-important it almost always carries .is-read too. This
 * combined rule must keep the important color as the dominant one (marking
 * something important is the more deliberate, higher-priority action), so it
 * intentionally repeats .spq-palette-btn.is-important's declarations rather
 * than falling back to --spq-read. Do not swap these back to var(--spq-read)
 * - that reintroduces the bug where "important" silently never shows because
 * this 3-class selector outranks the 2-class .is-important rule above.
 */
.spq-palette-btn.is-important.is-read {
	background: linear-gradient(145deg, color-mix(in srgb, var(--spq-important) 60%, white), var(--spq-important)) !important;
	border-color: color-mix(in srgb, var(--spq-important) 70%, black) !important;
	color: var(--spq-button-text) !important;
	box-shadow: 0 2px 8px color-mix(in srgb, var(--spq-important) 50%, transparent), inset 0 1px 0 rgba(255,255,255,.5);
}
.spq-palette-btn.is-locked { opacity: .5; cursor: not-allowed; }

@media (min-width: 781px) {
	.spq-reader { gap: 16px; }
	.spq-reader-side { flex: 0 0 130px; padding: 10px; }
	.spq-reader-main { flex: 1 1 auto; }
	.spq-palette { grid-template-columns: repeat(3, 1fr); gap: 5px; }
}
@media (max-width: 780px) {
	.spq-reader { flex-direction: column; }
	.spq-reader-side { flex: 1 1 auto; width: 100%; position: static; }
	.spq-palette { grid-template-columns: repeat(auto-fill, minmax(44px, 1fr)); gap: 10px; max-height: 240px; }
	.spq-palette-btn { width: 44px; height: 44px; }
	.spq-card { padding: 18px 16px; }
}