:root {
	--iop-dark: #191d51;
	--iop-red: #df2b47;
	--iop-bg: #f9faff;
	--iop-muted: #5f6291;
	--iop-card: rgba(255, 255, 255, 0.9);
	--iop-border: rgba(25, 29, 81, 0.12);
	--iop-shadow: rgba(25, 29, 81, 0.14);
	--iop-radius: 20px;
	--iop-font: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
}

.iop-main,
.iop-main * {
	box-sizing: border-box;
}

.iop-main {
	width: 100%;
	max-width: 1100px;
	margin: 0 auto;
	padding: 28px clamp(16px, 4vw, 40px) 48px;
	color: var(--iop-dark);
	font-family: var(--iop-font);
}

.iop-hero {
	text-align: center;
	margin-bottom: 28px;
}

.iop-card {
	background: var(--iop-card);
	border: 1px solid var(--iop-border);
	border-radius: var(--iop-radius);
	box-shadow: 0 14px 40px var(--iop-shadow);
	backdrop-filter: blur(8px);
	padding: clamp(22px, 4vw, 36px);
	margin: 0 auto 24px;
}

.iop-card-narrow { max-width: 480px; }

.iop-badge {
	display: inline-block;
	border-radius: 999px;
	padding: 6px 12px;
	font-size: 11px;
	letter-spacing: 0.4px;
	margin-bottom: 12px;
	color: var(--iop-dark);
	background: rgba(25, 29, 81, 0.08);
	border: 1px solid rgba(25, 29, 81, 0.14);
}

.iop-title {
	margin: 0 0 10px;
	font-size: clamp(1.5rem, 4vw, 2.2rem);
	line-height: 1.15;
	letter-spacing: -0.02em;
}

.iop-title-sm { font-size: clamp(1.25rem, 3vw, 1.6rem); }

.iop-subtitle {
	margin: 0 0 20px;
	color: var(--iop-muted);
	line-height: 1.55;
}

.iop-form {
	display: grid;
	gap: 14px;
}

.iop-form label {
	display: grid;
	gap: 6px;
	font-size: 13px;
	font-weight: 600;
}

.iop-form input[type="text"],
.iop-form input[type="email"],
.iop-form input[type="password"] {
	min-height: 48px;
	border: 1px solid rgba(25, 29, 81, 0.16);
	border-radius: 12px;
	padding: 0 14px;
	font-size: 15px;
	font-weight: 400;
	color: var(--iop-dark);
	background: #fff;
	outline: none;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
	width: 100%;
}

.iop-form input:focus {
	border-color: rgba(25, 29, 81, 0.38);
	box-shadow: 0 0 0 4px rgba(25, 29, 81, 0.1);
}

.iop-password-wrap {
	position: relative;
	display: block;
}

.iop-password-wrap input[type="password"],
.iop-password-wrap input[type="text"] {
	padding-right: 48px;
	width: 100%;
}

.iop-password-toggle {
	position: absolute;
	top: 50%;
	right: 6px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	padding: 0;
	border: none;
	border-radius: 10px;
	background: transparent;
	color: var(--iop-muted);
	cursor: pointer;
	transform: translateY(-50%);
}

.iop-password-toggle:hover,
.iop-password-toggle:focus-visible {
	color: var(--iop-dark);
	outline: none;
}

.iop-password-toggle:focus-visible {
	box-shadow: 0 0 0 3px rgba(25, 29, 81, 0.12);
}

.iop-password-toggle svg {
	display: block;
	width: 20px;
	height: 20px;
}

.iop-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}

.iop-checkbox {
	display: flex !important;
	align-items: center;
	gap: 8px;
	font-weight: 500 !important;
}

.iop-checkbox input { width: auto; }

.iop-honeypot {
	position: absolute !important;
	left: -9999px !important;
	height: 0 !important;
	overflow: hidden !important;
}

.iop-btn[hidden] {
	display: none !important;
}

.iop-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	padding: 0 18px;
	border: none;
	border-radius: 12px;
	font-weight: 700;
	font-size: 15px;
	color: #fff;
	background: var(--iop-red);
	cursor: pointer;
	text-decoration: none;
	transition: transform 0.2s ease, filter 0.2s ease;
}

.iop-btn:hover {
	transform: translateY(-1px);
	filter: brightness(1.04);
	color: #fff;
}

.iop-btn:disabled {
	opacity: 0.65;
	cursor: not-allowed;
	transform: none;
}

.iop-btn-sm {
	min-height: 36px;
	padding: 0 12px;
	font-size: 13px;
}

.iop-btn-block { width: 100%; }

.iop-btn-outline {
	background: transparent;
	color: var(--iop-dark);
	border: 1px solid rgba(25, 29, 81, 0.2);
}

.iop-btn-outline:hover { color: var(--iop-dark); }

.iop-form-msg {
	min-height: 1.2em;
	font-size: 13px;
	color: var(--iop-red);
}

.iop-form-msg.is-success { color: #0f7a45; }

.iop-links {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	justify-content: space-between;
	margin-top: 18px;
	font-size: 13px;
}

.iop-links a {
	color: var(--iop-muted);
	text-decoration: none;
	font-weight: 600;
}

.iop-links a:hover { color: var(--iop-red); }

.iop-pricing-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 20px;
}

.iop-price-card {
	position: relative;
	background: var(--iop-card);
	border: 1px solid var(--iop-border);
	border-radius: var(--iop-radius);
	padding: 28px 22px;
	box-shadow: 0 10px 30px var(--iop-shadow);
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.iop-price-card.is-featured {
	border-color: rgba(223, 43, 71, 0.35);
	box-shadow: 0 16px 40px rgba(223, 43, 71, 0.16);
}

.iop-price-card h2 {
	margin: 0;
	font-size: 1.15rem;
}

.iop-price {
	margin: 0;
	display: flex;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 8px;
}

.iop-compare {
	font-size: 1rem;
	font-weight: 600;
	color: var(--iop-muted);
	text-decoration: line-through;
}

.iop-amount {
	font-size: 2.2rem;
	font-weight: 800;
	letter-spacing: -0.03em;
}

.iop-currency { font-weight: 700; color: var(--iop-muted); }

.iop-access,
.iop-desc {
	margin: 0;
	color: var(--iop-muted);
	font-size: 14px;
}

.iop-features {
	list-style: none;
	padding: 0;
	margin: 8px 0 16px;
	display: grid;
	gap: 8px;
	flex: 1;
}

.iop-features li {
	position: relative;
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 12px;
	padding-left: 22px;
	font-size: 14px;
	line-height: 1.4;
}

.iop-features li::before {
	content: "✓";
	position: absolute;
	left: 0;
	color: var(--iop-red);
	font-weight: 700;
}

.iop-features li.is-no::before {
	content: "✗";
	color: var(--iop-muted);
}

.iop-features li.is-no {
	color: var(--iop-muted);
}

.iop-feature-label {
	font-weight: 600;
}

.iop-feature-value {
	text-align: right;
}

.iop-ribbon {
	position: absolute;
	top: 14px;
	right: 14px;
	background: var(--iop-red);
	color: #fff;
	font-size: 11px;
	font-weight: 700;
	padding: 4px 10px;
	border-radius: 999px;
}

.iop-grid-2 {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	align-items: start;
}

.iop-pack-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: grid;
	gap: 12px;
}

.iop-pack-item {
	display: flex;
	justify-content: space-between;
	gap: 12px;
	align-items: center;
	padding: 14px;
	border: 1px solid var(--iop-border);
	border-radius: 14px;
	background: #fff;
}

.iop-pack-item strong { display: block; margin-bottom: 4px; }

.iop-pack-item small {
	display: block;
	color: var(--iop-muted);
	margin-top: 4px;
}

.iop-status {
	display: inline-block;
	font-size: 12px;
	font-weight: 700;
	color: #0f7a45;
}

.iop-pack-item.is-expired .iop-status { color: var(--iop-red); }

.iop-subject-list {
	list-style: none;
	padding: 0;
	margin: 20px 0 0;
	display: grid;
	gap: 10px;
	counter-reset: none;
}

.iop-subject-list a,
.iop-subject-locked-row {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	padding: 14px 16px;
	border-radius: 14px;
	border: 1px solid var(--iop-border);
	background: #fff;
	text-decoration: none;
	color: var(--iop-dark);
	font-weight: 600;
}

.iop-subject-list a {
	transition: border-color 0.2s ease, transform 0.2s ease;
}

.iop-subject-list a:hover,
.iop-tips-entry:hover {
	border-color: rgba(223, 43, 71, 0.35);
	transform: translateY(-1px);
}

.iop-subject-list .is-current a {
	border-color: rgba(223, 43, 71, 0.4);
	box-shadow: 0 8px 24px rgba(223, 43, 71, 0.1);
}

.iop-subject-list .is-locked .iop-subject-locked-row {
	background: rgba(25, 29, 81, 0.03);
	color: var(--iop-muted);
	cursor: default;
}

.iop-subject-list-copy {
	display: grid;
	gap: 4px;
	min-width: 0;
}

.iop-subject-list-title {
	line-height: 1.35;
}

.iop-subject-list-excerpt {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 13px;
	font-weight: 500;
	color: var(--iop-muted);
	line-height: 1.45;
}

.iop-lock-icon {
	flex-shrink: 0;
	display: block;
}

.iop-subject-list a:focus-visible,
.iop-tips-entry:focus-visible,
.iop-breadcrumb a:focus-visible {
	outline: 2px solid var(--iop-red);
	outline-offset: 2px;
}

.iop-tips-entry {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	margin: 8px 0 18px;
	padding: 14px 16px;
	border-radius: 14px;
	border: 1px solid var(--iop-border);
	background: #fff;
	text-decoration: none;
	color: var(--iop-dark);
	font-weight: 600;
	transition: border-color 0.2s ease, transform 0.2s ease;
}

.iop-tip-list a {
	align-items: flex-start;
}

.iop-tip-list-copy {
	display: grid;
	gap: 4px;
	min-width: 0;
}

.iop-tip-list-title {
	line-height: 1.35;
}

.iop-tip-list-excerpt {
	font-size: 13px;
	font-weight: 500;
	color: var(--iop-muted);
	line-height: 1.45;
}

.iop-tip-overview {
	list-style: none;
	padding: 0;
	margin: 20px 0 0;
	display: grid;
	gap: 10px;
}

.iop-tip-overview a,
.iop-tip-locked-row {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	padding: 14px 16px;
	border-radius: 14px;
	border: 1px solid var(--iop-border);
	background: #fff;
	text-decoration: none;
	color: var(--iop-dark);
	font-weight: 600;
}

.iop-tip-overview a {
	transition: border-color 0.2s ease, transform 0.2s ease;
}

.iop-tip-overview a:hover {
	border-color: rgba(223, 43, 71, 0.35);
	transform: translateY(-1px);
}

.iop-tip-overview a:focus-visible {
	outline: 2px solid var(--iop-red);
	outline-offset: 2px;
}

.iop-tip-overview .is-current a {
	border-color: rgba(223, 43, 71, 0.4);
	box-shadow: 0 8px 24px rgba(223, 43, 71, 0.1);
}

.iop-tip-overview .is-locked .iop-tip-locked-row {
	background: rgba(25, 29, 81, 0.03);
	color: var(--iop-muted);
	cursor: default;
}

.iop-card .iop-btn + .iop-tip-overview {
	margin-top: 18px;
}

.iop-tip-reader-head {
	margin-bottom: 18px;
}

.iop-tip-kicker {
	margin: 0 0 12px;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--iop-muted);
}

.iop-breadcrumb span {
	margin: 0 8px;
	color: var(--iop-border);
}

.iop-tip-dots {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	padding: 0;
	margin: 0 0 10px;
}

.iop-tip-dots li {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: rgba(25, 29, 81, 0.16);
}

.iop-tip-dots .is-done {
	background: var(--iop-dark);
}

.iop-tip-dots .is-current {
	width: 18px;
	border-radius: 999px;
	background: var(--iop-red);
}

.iop-tip-track {
	height: 6px;
	border-radius: 999px;
	background: rgba(25, 29, 81, 0.08);
	overflow: hidden;
}

.iop-tip-track-fill {
	display: block;
	height: 100%;
	border-radius: inherit;
	background: var(--iop-red);
}

.iop-tip-nav {
	position: sticky;
	bottom: 12px;
	z-index: 3;
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(120px, 1.4fr) minmax(0, 1fr);
	gap: 12px;
	align-items: center;
	padding: 12px 16px;
	margin: 8px auto 0;
	background: var(--iop-card);
	border: 1px solid var(--iop-border);
	border-radius: 16px;
	box-shadow: 0 14px 40px var(--iop-shadow);
}

.iop-tip-nav > :first-child {
	justify-self: start;
}

.iop-tip-nav > :last-child {
	justify-self: end;
}

.iop-tip-wait {
	display: grid;
	gap: 8px;
	text-align: center;
	min-width: 0;
}

.iop-tip-wait-label {
	margin: 0;
	font-size: 13px;
	font-weight: 600;
	color: var(--iop-muted);
	line-height: 1.35;
}

.iop-tip-wait-bar {
	height: 4px;
	border-radius: 999px;
	background: rgba(25, 29, 81, 0.1);
	overflow: hidden;
}

.iop-tip-wait-bar::after {
	content: "";
	display: block;
	height: 100%;
	width: calc(var(--iop-wait, 0) * 100%);
	background: var(--iop-red);
	transition: width 0.4s linear;
}

.iop-btn.is-disabled,
.iop-tip-nav [aria-disabled="true"] {
	opacity: 0.45;
	pointer-events: none;
	transform: none;
	cursor: default;
}

@media (max-width: 560px) {
	.iop-tip-nav {
		grid-template-columns: 1fr 1fr;
	}

	.iop-tip-wait {
		grid-column: 1 / -1;
		order: -1;
	}
}

@media (prefers-reduced-motion: reduce) {
	.iop-subject-list a,
	.iop-tip-overview a,
	.iop-tips-entry,
	.iop-tip-wait-bar::after,
	.iop-tip-track-fill {
		transition: none;
	}
}

.iop-pos {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	background: rgba(25, 29, 81, 0.08);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 13px;
	flex-shrink: 0;
}

.iop-content {
	line-height: 1.65;
	margin: 18px 0 24px;
	overflow-wrap: anywhere;
}

.iop-subject-conclusion {
	margin-top: 0;
}

.iop-content img { max-width: 100%; height: auto; border-radius: 12px; }

.iop-content p,
.iop-correction-body p {
	margin: 0 0 0.85em;
}

.iop-content p:last-child,
.iop-correction-body p:last-child {
	margin-bottom: 0;
}

.iop-content h2,
.iop-content h3,
.iop-content h4,
.iop-correction-body h2,
.iop-correction-body h3,
.iop-correction-body h4,
.iop-qa-heading {
	margin: 1.25em 0 0.5em;
	font-size: 1.08rem;
	font-weight: 700;
	line-height: 1.35;
	color: var(--iop-dark);
}

.iop-content h2:first-child,
.iop-content h3:first-child,
.iop-content h4:first-child,
.iop-correction-body h2:first-child,
.iop-correction-body h3:first-child,
.iop-correction-body h4:first-child,
.iop-qa-heading:first-child {
	margin-top: 0;
}

.iop-content ol,
.iop-content ul,
.iop-correction-body ol,
.iop-correction-body ul,
.iop-qa-list {
	margin: 0 0 1em;
	padding-left: 1.35em;
}

.iop-content li,
.iop-correction-body li {
	margin: 0 0 0.5em;
}

.iop-content li:last-child,
.iop-correction-body li:last-child {
	margin-bottom: 0;
}

.iop-content ul ul,
.iop-content ol ol,
.iop-content ul ol,
.iop-content ol ul {
	margin-top: 0.4em;
	margin-bottom: 0.4em;
}

.iop-subject-prompt {
	margin-top: 8px;
	margin-bottom: 12px;
}

.iop-subject-full-image {
	width: calc(100% + 2 * clamp(22px, 4vw, 36px));
	max-width: none;
	margin: 4px calc(-1 * clamp(22px, 4vw, 36px)) 8px;
	padding: 0;
	overflow: hidden;
	line-height: 0;
	border-radius: 0;
}

.iop-subject-full-image img {
	display: block;
	width: 100%;
	height: auto;
	max-width: none;
	object-fit: cover;
}

.iop-correction {
	border-top: 1px solid var(--iop-border);
	padding-top: 20px;
	margin-top: 8px;
	display: flex;
	flex-direction: column;
	align-items: center;
}

.iop-correction [data-ioparla-reveal] {
	margin-left: auto;
	margin-right: auto;
}

.iop-correction-body {
	width: 100%;
	margin-top: 16px;
	padding: 16px 18px;
	border-radius: 14px;
	background: rgba(25, 29, 81, 0.04);
	line-height: 1.65;
	text-align: left;
}

.iop-correction-body img { max-width: 100%; height: auto; border-radius: 10px; }

.iop-correction-intro,
.iop-correction-conclusion,
.iop-correction-section {
	margin: 0 0 1.5em;
}

.iop-correction-intro:last-child,
.iop-correction-conclusion:last-child,
.iop-correction-section:last-child {
	margin-bottom: 0;
}

.iop-correction-body .iop-correction-section-title {
	margin: 0 0 0.5em;
	font-size: 1.08rem;
	font-weight: 700;
	line-height: 1.35;
	color: var(--iop-dark);
}

.iop-correction-body .iop-correction-replies {
	margin: 0;
	padding-left: 1.35em;
}

.iop-correction-body .iop-correction-replies li {
	margin: 0 0 0.65em;
}

.iop-correction-body .iop-correction-replies li:last-child {
	margin-bottom: 0;
}

.iop-correction-body .iop-correction-replies li > p:last-child {
	margin-bottom: 0;
}

.iop-note {
	color: var(--iop-muted);
	font-size: 13px;
	margin: 0 0 12px;
}

.iop-sim-pay { margin-top: 18px; }

.iop-card-checkout { max-width: 560px; }

.iop-subscribe-box {
	margin: 8px 0 4px;
	padding: 14px;
	border: 1px solid var(--iop-border);
	border-radius: 14px;
	background: #fff;
}

.iop-subscribe-hint {
	display: block;
	font-weight: 500;
	color: var(--iop-muted);
	font-size: 13px;
	margin-top: 4px;
}

.iop-subscribe-legal {
	margin: 10px 0 0;
	font-size: 13px;
	color: var(--iop-dark);
}

.iop-paypal-buttons {
	min-height: 48px;
	margin-top: 8px;
}

.iop-paypal-loading {
	margin: 8px 0 0;
	font-size: 13px;
	color: var(--iop-muted);
}

.iop-checkbox {
	align-items: flex-start;
}

.iop-checkbox input {
	margin-top: 3px;
}

.iop-price-inline {
	display: flex;
	align-items: baseline;
	gap: 12px;
	margin-bottom: 12px;
}

.iop-breadcrumb { margin: 0 0 10px; }

.iop-breadcrumb a {
	color: var(--iop-muted);
	text-decoration: none;
	font-size: 13px;
	font-weight: 600;
}

@media (max-width: 800px) {
	.iop-grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
	.iop-row { grid-template-columns: 1fr; }
	.iop-pack-item { flex-direction: column; align-items: flex-start; }
}

.iop-visually-hidden,
.iop-main .screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.iop-main:has(.iop-dashboard) {
	max-width: 1180px;
}

.iop-dashboard {
	--iop-nav-btn: 48px;
	--iop-nav-rail: calc(var(--iop-nav-btn) + 24px);
	display: grid;
	grid-template-columns: 260px minmax(0, 1fr);
	gap: 20px;
	align-items: start;
}

.iop-dashboard.is-collapsed {
	grid-template-columns: var(--iop-nav-rail) minmax(0, 1fr);
}

.iop-dashboard-nav {
	position: sticky;
	top: 24px;
	margin: 0;
	padding: 12px;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.iop-nav-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	min-height: var(--iop-nav-btn);
}

.iop-nav-head .iop-badge {
	margin-bottom: 0;
}

.iop-nav-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: var(--iop-nav-btn);
	height: var(--iop-nav-btn);
	min-width: var(--iop-nav-btn);
	min-height: var(--iop-nav-btn);
	padding: 0;
	flex-shrink: 0;
	margin-left: auto;
	aspect-ratio: 1 / 1;
	border: 1px solid var(--iop-border);
	border-radius: 12px;
	background: #fff;
	color: var(--iop-dark);
	cursor: pointer;
	transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.iop-nav-toggle:hover,
.iop-nav-toggle:focus-visible {
	border-color: var(--iop-red);
	background: rgba(223, 43, 71, 0.08);
	color: var(--iop-red);
	outline: none;
}

.iop-nav-toggle-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 20px;
	height: 20px;
	color: inherit;
	transition: transform 0.2s ease;
}

.iop-nav-toggle-icon svg {
	display: block;
	width: 20px;
	height: 20px;
	color: inherit;
	fill: none;
	stroke: currentColor;
}

.iop-nav-toggle:hover .iop-nav-toggle-icon,
.iop-nav-toggle:hover .iop-nav-toggle-icon svg,
.iop-nav-toggle:focus-visible .iop-nav-toggle-icon,
.iop-nav-toggle:focus-visible .iop-nav-toggle-icon svg {
	color: var(--iop-red);
	stroke: var(--iop-red);
}

.iop-dashboard.is-collapsed .iop-nav-toggle-icon {
	transform: rotate(180deg);
}

.iop-nav-list {
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.iop-nav-item {
	display: flex;
	align-items: center;
	gap: 12px;
	width: 100%;
	min-height: 48px;
	padding: 0 12px;
	border: 1px solid transparent;
	border-radius: 12px;
	background: transparent;
	color: var(--iop-dark);
	font: inherit;
	font-size: 14px;
	font-weight: 700;
	text-align: left;
	cursor: pointer;
	transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.iop-nav-item:hover {
	background: rgba(25, 29, 81, 0.05);
}

.iop-nav-item:focus-visible {
	outline: 2px solid var(--iop-red);
	outline-offset: 2px;
}

.iop-nav-item.is-active {
	background: rgba(223, 43, 71, 0.08);
	border-color: rgba(223, 43, 71, 0.22);
	color: var(--iop-red);
}

.iop-nav-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	flex-shrink: 0;
}

.iop-nav-icon svg {
	width: 22px;
	height: 22px;
	display: block;
}

.iop-dashboard.is-collapsed .iop-dashboard-nav {
	padding: 12px;
	align-items: center;
	width: var(--iop-nav-rail);
}

.iop-dashboard.is-collapsed .iop-nav-head {
	justify-content: center;
	width: var(--iop-nav-btn);
}

.iop-dashboard.is-collapsed .iop-nav-toggle {
	margin-left: 0;
}

.iop-dashboard.is-collapsed .iop-nav-label {
	display: none;
}

.iop-dashboard.is-collapsed .iop-nav-item {
	justify-content: center;
	padding: 0;
	width: var(--iop-nav-btn);
	min-width: var(--iop-nav-btn);
	height: var(--iop-nav-btn);
	min-height: var(--iop-nav-btn);
}

.iop-dashboard-content {
	min-width: 0;
}

.iop-dashboard-panel {
	margin: 0;
}

.iop-dashboard-panel[hidden] {
	display: none !important;
}

.iop-dashboard-section-title {
	margin-top: 28px;
}

.iop-buy-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-top: 28px;
}

.iop-buy-head .iop-dashboard-section-title {
	margin: 0;
}

.iop-buy-head .iop-btn {
	flex-shrink: 0;
}

.iop-active-pack {
	padding: 18px 0 8px;
	border-top: 1px solid var(--iop-border);
}

.iop-active-pack:first-of-type {
	border-top: 0;
	padding-top: 4px;
}

.iop-active-pack-head {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 12px;
}

.iop-active-pack-head .iop-title {
	margin-bottom: 4px;
}

.iop-active-pack .iop-tips-entry {
	margin: 0;
}

.iop-buy-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
	margin-top: 8px;
}

.iop-buy-card {
	display: flex;
	flex-direction: column;
	gap: 10px;
	min-width: 0;
	padding: 20px 18px;
	border: 1px solid var(--iop-border);
	border-radius: var(--iop-radius);
	background: var(--iop-card);
	box-shadow: 0 10px 30px var(--iop-shadow);
	overflow: hidden;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.iop-buy-card:hover {
	transform: translateY(-2px);
	box-shadow: 0 16px 36px var(--iop-shadow);
}

.iop-buy-card-title {
	margin: 0;
	font-size: 16px;
	font-weight: 700;
	line-height: 1.3;
}

.iop-buy-card-price {
	margin: 0;
	display: flex;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 8px;
}

.iop-buy-card-price .iop-compare {
	font-size: 14px;
}

.iop-buy-card-price .iop-amount {
	font-size: 22px;
	font-weight: 800;
}

.iop-buy-card-price .iop-currency {
	font-size: 14px;
	font-weight: 700;
	color: var(--iop-muted);
}

.iop-buy-card-desc {
	margin: 0;
	flex: 1;
	font-size: 13px;
	line-height: 1.45;
	color: var(--iop-muted);
}

.iop-buy-card .iop-btn {
	margin-top: 4px;
}

@media (max-width: 800px) {
	.iop-buy-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.iop-dashboard,
	.iop-dashboard.is-collapsed {
		grid-template-columns: 1fr;
	}

	.iop-dashboard-nav,
	.iop-dashboard.is-collapsed .iop-dashboard-nav {
		position: static;
		flex-direction: row;
		align-items: center;
		padding: 12px;
		width: 100%;
	}

	.iop-nav-head {
		display: none;
	}

	.iop-nav-list {
		flex-direction: row;
		width: 100%;
		justify-content: stretch;
	}

	.iop-nav-item,
	.iop-dashboard.is-collapsed .iop-nav-item {
		flex: 1;
		justify-content: center;
		width: auto;
		padding: 0;
	}

	.iop-nav-label {
		display: none;
	}
}

@media (max-width: 560px) {
	.iop-buy-grid {
		grid-template-columns: 1fr;
	}

	.iop-buy-head {
		flex-direction: column;
		align-items: flex-start;
	}

	.iop-active-pack-head {
		flex-direction: column;
	}
}

.screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.iop-exam-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	justify-content: center;
	margin: 0 0 24px;
}

.iop-exam-tabs a {
	display: inline-flex;
	align-items: center;
	padding: 8px 16px;
	border-radius: 999px;
	border: 1px solid var(--iop-border);
	color: var(--iop-dark);
	text-decoration: none;
	font-size: 14px;
	font-weight: 600;
	background: #fff;
}

.iop-exam-tabs a.is-active,
.iop-exam-tabs a:hover {
	background: var(--iop-dark);
	border-color: var(--iop-dark);
	color: #fff;
}

.iop-exam-badge {
	display: inline-block;
	margin: 0 0 8px;
	padding: 4px 10px;
	border-radius: 999px;
	background: rgba(25, 29, 81, 0.08);
	font-size: 12px;
	font-weight: 600;
	color: var(--iop-muted);
}

.iop-part-tabs {
	margin-top: 8px;
}

.iop-part-tablist {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 16px;
}

.iop-part-tab {
	display: inline-flex;
	align-items: baseline;
	gap: 8px;
	padding: 10px 16px;
	border-radius: 999px;
	border: 1px solid var(--iop-border);
	background: #fff;
	color: var(--iop-dark);
	font: inherit;
	font-size: 14px;
	font-weight: 600;
	cursor: pointer;
}

.iop-part-tab.is-active,
.iop-part-tab[aria-selected="true"] {
	background: var(--iop-dark);
	border-color: var(--iop-dark);
	color: #fff;
}

.iop-part-tab-count {
	font-weight: 500;
	opacity: 0.8;
	font-size: 12px;
}

.iop-subject-head {
	margin-bottom: 16px;
}

.iop-subject-toolbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 10px;
}

.iop-subject-back {
	display: inline-block;
	flex: 0 0 auto;
	margin: 0;
	color: var(--iop-muted);
	text-decoration: none;
	font-size: 13px;
	font-weight: 600;
}

.iop-subject-back:hover {
	color: var(--iop-red);
}

.iop-subject-meta {
	display: flex;
	flex-wrap: wrap;
	justify-content: flex-end;
	gap: 8px;
	margin: 0 0 0 auto;
}

.iop-subject-meta span {
	display: inline-flex;
	align-items: center;
	padding: 4px 10px;
	border-radius: 999px;
	background: rgba(25, 29, 81, 0.07);
	color: var(--iop-muted);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.02em;
}

.iop-subject .iop-title {
	margin-bottom: 0;
}

.iop-practice {
	margin: 0 0 18px;
}

.iop-practice-clock {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 12px 16px;
	border-radius: 16px;
	background: rgba(25, 29, 81, 0.05);
	border: 1px solid var(--iop-border);
}

.iop-practice.is-running .iop-practice-clock {
	position: sticky;
	top: 8px;
	z-index: 5;
	background: rgba(255, 255, 255, 0.96);
	box-shadow: 0 8px 24px var(--iop-shadow);
}

.iop-practice-readout {
	display: grid;
	gap: 2px;
	min-width: 0;
}

.iop-practice-label {
	font-size: 11px;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--iop-muted);
}

.iop-practice-time {
	font-variant-numeric: tabular-nums;
	font-size: 2rem;
	font-weight: 800;
	letter-spacing: -0.03em;
	line-height: 1;
}

.iop-practice-clock .iop-btn {
	min-width: 96px;
}

.iop-practice.is-warning .iop-practice-time,
.iop-practice.is-warning .iop-practice-clock {
	color: var(--iop-red);
}

.iop-practice-up {
	margin: 8px 0 0;
	padding: 10px 12px;
	border-radius: 12px;
	background: rgba(223, 43, 71, 0.1);
	color: var(--iop-red);
	font-weight: 700;
	text-align: center;
}

.iop-practice-record {
	margin: 8px 0 0;
	font-size: 13px;
	font-weight: 600;
	color: var(--iop-muted);
}

.iop-practice-record[data-kind="live"] {
	color: var(--iop-red);
}

.iop-practice-wave {
	display: flex;
	align-items: center;
	gap: 3px;
	width: 100%;
	box-sizing: border-box;
	height: 48px;
	margin: 8px 0 0;
	padding: 8px 12px;
	border-radius: 12px;
	background: rgba(25, 29, 81, 0.05);
	overflow: hidden;
}

.iop-practice-wave-bar {
	flex: 1 1 0;
	min-width: 0;
	height: 4px;
	border-radius: 999px;
	background: var(--iop-red);
}

.iop-practice-wave[data-kind="paused"] .iop-practice-wave-bar,
.iop-practice-wave[data-kind="done"] .iop-practice-wave-bar {
	background: var(--iop-muted);
}

.iop-practice-record[data-kind="live"]::before {
	content: "";
	display: inline-block;
	width: 8px;
	height: 8px;
	margin-right: 8px;
	border-radius: 50%;
	background: var(--iop-red);
	vertical-align: middle;
	animation: iop-record-pulse 1.2s ease-in-out infinite;
}

@keyframes iop-record-pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.35; }
}

.iop-practice-take,
.iop-practice-share,
.iop-practice-tutors {
	margin: 12px 0 0;
	display: grid;
	gap: 10px;
}

.iop-practice-take[hidden],
.iop-practice-share[hidden],
.iop-practice-tutors[hidden],
.iop-practice-wave[hidden],
.iop-practice-record[hidden],
.iop-practice-tutors-msg[hidden],
.iop-tutor-pager[hidden] {
	display: none;
}

.iop-practice-take audio {
	width: 100%;
}

.iop-practice-share {
	padding: 12px 14px;
	border-radius: 14px;
	border: 1px solid var(--iop-border);
	background: rgba(25, 29, 81, 0.04);
}

.iop-practice-share p {
	margin: 0;
	font-weight: 600;
}

.iop-practice-share-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.iop-practice-tutors-msg {
	margin: 0;
	color: var(--iop-muted);
	font-weight: 600;
}

.iop-tutor-grid {
	display: grid;
	gap: 12px;
}

.iop-tutor-card {
	display: grid;
	grid-template-columns: 64px 1fr;
	gap: 12px;
	align-items: start;
	padding: 12px;
	border: 1px solid var(--iop-border);
	border-radius: 14px;
	background: #fff;
}

.iop-tutor-card-media img,
.iop-tutor-card-initials {
	width: 64px;
	height: 64px;
	border-radius: 50%;
	object-fit: cover;
	display: block;
}

.iop-tutor-card-initials {
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(25, 29, 81, 0.08);
	color: var(--iop-dark);
	font-weight: 800;
}

.iop-tutor-card-body {
	display: grid;
	gap: 4px;
	min-width: 0;
}

.iop-tutor-card-name {
	margin: 0;
	font-size: 1rem;
	line-height: 1.2;
}

.iop-tutor-card-meta,
.iop-tutor-card-reviews,
.iop-tutor-card-speak {
	margin: 0;
	color: var(--iop-muted);
	font-size: 13px;
}

.iop-tutor-card-body .iop-btn {
	margin-top: 6px;
	justify-self: start;
}

.iop-tutor-pager {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
}

.iop-subject-foot {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: flex-end;
	gap: 12px;
	margin-top: 8px;
	padding-top: 18px;
	border-top: 1px solid var(--iop-border);
}

.iop-subject .iop-correction {
	display: contents;
}

.iop-subject .iop-correction [data-ioparla-reveal] {
	margin: 0 auto 0 0;
}

.iop-subject .iop-correction-body {
	flex: 1 1 100%;
	order: 3;
	margin-top: 4px;
}

.iop-subject-nav {
	margin: 0;
	flex: 0 0 auto;
}

.iop-tip-bundle {
	margin: 18px 0;
	padding: 18px;
	border: 1px solid var(--iop-border);
	border-radius: var(--iop-radius);
	background: rgba(25, 29, 81, 0.04);
}

.iop-tip-bundle-title {
	margin: 0 0 12px;
	font-weight: 700;
}

.iop-note-success {
	background: rgba(30, 142, 62, 0.1);
	color: #146c2e;
}

.iop-tip-overview .is-fresh a {
	box-shadow: inset 3px 0 0 var(--iop-red);
}

@media (max-width: 640px) {
	.iop-part-tablist {
		flex-direction: column;
	}

	.iop-part-tab {
		width: 100%;
		justify-content: space-between;
		border-radius: 14px;
	}

	.iop-practice.is-running .iop-practice-clock {
		top: 0;
		border-radius: 0;
		margin: 0 calc(-1 * clamp(22px, 4vw, 36px));
		padding-left: clamp(22px, 4vw, 36px);
		padding-right: clamp(22px, 4vw, 36px);
	}

	.iop-subject-foot {
		flex-direction: column;
	}

	.iop-subject-nav,
	.iop-subject .iop-correction [data-ioparla-reveal] {
		width: 100%;
	}

	.iop-subject-nav .iop-btn,
	.iop-practice-clock .iop-btn {
		width: 100%;
	}

	.iop-subject-toolbar {
		flex-wrap: wrap;
	}

	.iop-subject-meta {
		justify-content: flex-end;
		margin-left: auto;
	}
}