/* InterviewTrainer — design system */

:root {
    --it-font: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
    --it-font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;

    --it-bg: #f1f5f9;
    --it-bg-accent: radial-gradient(ellipse 90% 60% at 50% -10%, rgba(56, 189, 248, 0.14), transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(99, 102, 241, 0.08), transparent 50%),
        linear-gradient(180deg, #f8fafc 0%, var(--it-bg) 100%);
    --it-surface: #ffffff;
    --it-surface-elevated: #ffffff;
    --it-border: rgba(15, 23, 42, 0.08);
    --it-border-strong: rgba(15, 23, 42, 0.14);

    --it-text: #0f172a;
    --it-text-muted: #64748b;
    --it-text-inverse: #f8fafc;

    --it-nav-bg: rgba(11, 17, 32, 0.82);
    --it-nav-solid: #0b1120;
    --it-nav-border: rgba(148, 163, 184, 0.12);
    --it-nav-glow: rgba(56, 189, 248, 0.35);

    --it-primary: #3b82f6;
    --it-primary-hover: #2563eb;
    --it-primary-soft: rgba(59, 130, 246, 0.12);
    --it-accent: #38bdf8;
    --it-accent-soft: rgba(56, 189, 248, 0.14);

    --it-success: #059669;
    --it-success-soft: rgba(5, 150, 105, 0.12);
    --it-warning: #d97706;
    --it-warning-soft: rgba(217, 119, 6, 0.14);
    --it-danger: #dc2626;
    --it-danger-soft: rgba(220, 38, 38, 0.1);
    --it-info: #0284c7;

    --it-radius-sm: 0.5rem;
    --it-radius: 0.75rem;
    --it-radius-lg: 1rem;
    --it-radius-xl: 1.25rem;

    --it-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --it-shadow: 0 4px 24px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
    --it-shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
    --it-shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.28);
    --it-blur-nav: blur(16px);

    --it-transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body.it-app {
    font-family: var(--it-font);
    color: var(--it-text);
    background: var(--it-bg-accent);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ——— Layout ——— */

.it-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: var(--it-nav-bg);
    backdrop-filter: var(--it-blur-nav);
    -webkit-backdrop-filter: var(--it-blur-nav);
    border-bottom: 1px solid var(--it-nav-border);
    box-shadow: var(--it-shadow-nav);
}

.it-header__glow {
    position: absolute;
    inset: 0 0 auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--it-nav-glow), transparent);
    pointer-events: none;
}

.it-header .navbar {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    position: relative;
}

.it-header__inner {
    gap: 1rem;
}

.it-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--it-text-inverse) !important;
}

.it-brand__mark {
    display: grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.18), rgba(59, 130, 246, 0.08));
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.it-brand-logo {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 0.4rem;
    object-fit: cover;
}

.it-brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.it-brand__name {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.03em;
}

.it-brand__tagline {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.9);
}

.it-header__nav {
    gap: 0.25rem;
}

.it-header .nav-link {
    color: rgba(226, 232, 240, 0.78) !important;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 0.9rem !important;
    border-radius: 999px;
    transition: color var(--it-transition), background var(--it-transition), box-shadow var(--it-transition);
}

.it-header .nav-link:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.07);
}

.it-header .nav-link.active {
    color: #fff !important;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), rgba(56, 189, 248, 0.2));
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.15);
}

.it-header-plan-group {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.it-header .it-header-plan {
    margin: 0;
}

.it-header .it-badge-free {
    background: rgba(148, 163, 184, 0.18);
    color: rgba(226, 232, 240, 0.9);
}

.it-header .it-badge-pro {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(59, 130, 246, 0.2));
    color: #6ee7b7;
    box-shadow: inset 0 0 0 1px rgba(110, 231, 183, 0.25);
}

.it-header__toggler,
.it-header .navbar-toggler {
    border-color: rgba(148, 163, 184, 0.25);
    padding: 0.35rem 0.55rem;
}

.it-header__toggler:focus,
.it-header .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
}

@media (max-width: 991.98px) {
    .it-header__nav,
    .it-header__actions {
        padding-top: 0.75rem;
    }

    .it-header .navbar-collapse {
        padding-bottom: 0.5rem;
    }
}

.it-user-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(226, 232, 240, 0.9);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem 0.25rem 0.25rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.12);
}

.it-user-chip img,
.it-user-chip__avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.it-user-chip img {
    border: 2px solid rgba(255, 255, 255, 0.12);
    object-fit: cover;
}

.it-user-chip__avatar {
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--it-primary), var(--it-accent));
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
}

.it-main {
    flex: 1;
    padding: 2.25rem 0 3.5rem;
}

.it-container {
    max-width: 1140px;
}

.it-footer {
    position: relative;
    margin-top: auto;
    padding: 3rem 0 1.5rem;
    background: linear-gradient(180deg, var(--it-nav-solid) 0%, #060a14 100%);
    color: rgba(226, 232, 240, 0.72);
    border-top: 1px solid var(--it-nav-border);
    overflow: hidden;
}

.it-footer__glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(720px, 90%);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--it-nav-glow), transparent);
    pointer-events: none;
}

.it-footer__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 2rem 2.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 767.98px) {
    .it-footer__grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
}

.it-footer__brand-link {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    text-decoration: none;
    margin-bottom: 0.85rem;
}

.it-footer__brand-link img {
    border-radius: 0.5rem;
}

.it-footer__brand-link .it-brand__mark {
    margin-bottom: 0;
}

.it-footer__desc {
    font-size: 0.875rem;
    line-height: 1.6;
    color: rgba(148, 163, 184, 0.95);
    margin-bottom: 0.85rem;
    max-width: 28rem;
}

.it-footer__email {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--it-accent);
    text-decoration: none;
    transition: color var(--it-transition);
}

.it-footer__email:hover {
    color: #7dd3fc;
}

.it-footer__heading {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.85);
    margin-bottom: 0.85rem;
}

.it-footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.it-footer__list a {
    color: rgba(226, 232, 240, 0.78);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--it-transition), transform var(--it-transition);
}

.it-footer__list a:hover {
    color: #fff;
    transform: translateX(2px);
}

.it-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.it-footer__copy {
    font-size: 0.8125rem;
    color: rgba(148, 163, 184, 0.75);
}

.it-footer__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: rgba(100, 116, 139, 0.9);
    font-family: var(--it-font-mono);
}

.it-footer__timing {
    color: rgba(100, 116, 139, 0.7);
}

/* Legacy footer aliases */
.it-footer a {
    color: rgba(226, 232, 240, 0.78);
    text-decoration: none;
    transition: color var(--it-transition);
}

.it-footer a:hover {
    color: #fff;
}

.it-footer-brand {
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.25rem;
}

.it-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    justify-content: flex-start;
}

@media (min-width: 768px) {
    .it-footer-links {
        justify-content: flex-end;
    }
}

.it-footer-copy {
    color: rgba(148, 163, 184, 0.75);
}

.it-legal-doc h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.it-legal-doc h2:first-child {
    margin-top: 0;
}

.it-legal-doc p,
.it-legal-doc li {
    color: var(--it-text-muted);
    line-height: 1.65;
}

.it-legal-doc ul {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

/* ——— Typography & page header ——— */

.it-page-header {
    margin-bottom: 1.75rem;
}

.it-page-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 0.35rem;
    color: var(--it-text);
}

.it-page-lead {
    font-size: 1.0625rem;
    color: var(--it-text-muted);
    margin-bottom: 0;
    max-width: 42rem;
}

/* ——— Surfaces ——— */

.it-panel {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow);
    padding: 1.5rem;
}

.it-card {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow-sm);
    transition: transform var(--it-transition), box-shadow var(--it-transition), border-color var(--it-transition);
    height: 100%;
}

.it-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--it-shadow);
    border-color: var(--it-border-strong);
}

.it-card-body {
    padding: 1.25rem;
}

.it-catalog-hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: linear-gradient(135deg, var(--it-nav-bg) 0%, #1e3a5f 60%, #312e81 100%);
    color: #fff;
    box-shadow: var(--it-shadow-lg);
}

.it-catalog-hero-main {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.it-catalog-hero-logo {
    border-radius: var(--it-radius);
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.it-catalog-hero-title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
}

.it-catalog-hero-lead {
    color: rgba(248, 250, 252, 0.8);
    font-size: 0.9375rem;
}

.it-catalog-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-filter-title {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--it-text-muted);
    margin-bottom: 1rem;
}

.it-promo {
    background: linear-gradient(135deg, var(--it-primary-soft) 0%, var(--it-accent-soft) 100%);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--it-radius-lg);
    padding: 1.5rem 1.75rem;
    margin-bottom: 1.75rem;
}

.it-promo--card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0;
}

.it-promo-title {
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: 0.35rem;
}

.it-promo-text {
    color: var(--it-text-muted);
    margin-bottom: 1rem;
}

/* ——— Compare / Why InterviewTrainer ——— */

.it-compare-hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: linear-gradient(135deg, var(--it-nav-bg) 0%, #1e3a5f 55%, #4338ca 100%);
    color: #fff;
    box-shadow: var(--it-shadow-lg);
}

.it-compare-hero__main {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 40rem;
}

.it-compare-hero__logo {
    border-radius: var(--it-radius);
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

.it-compare-hero__title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.35rem;
    line-height: 1.15;
}

.it-compare-hero__lead {
    color: rgba(248, 250, 252, 0.82);
    font-size: 0.95rem;
    line-height: 1.5;
}

.it-compare-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-compare-intro {
    padding: 1.25rem 1.5rem;
    border-radius: var(--it-radius-lg);
    background: linear-gradient(135deg, var(--it-primary-soft) 0%, var(--it-accent-soft) 100%);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.it-compare-intro__text {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--it-text);
}

.it-compare-pillar {
    height: 100%;
    padding: 1.35rem 1.25rem;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow-sm);
    transition: transform var(--it-transition), box-shadow var(--it-transition), border-color var(--it-transition);
}

.it-compare-pillar:hover {
    transform: translateY(-2px);
    box-shadow: var(--it-shadow);
    border-color: var(--it-border-strong);
}

.it-compare-pillar__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin-bottom: 0.85rem;
    border-radius: 0.75rem;
    background: var(--it-primary-soft);
    color: var(--it-primary);
}

.it-compare-pillar__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
}

.it-compare-pillar__text {
    font-size: 0.9rem;
    color: var(--it-text-muted);
    line-height: 1.55;
}

.it-compare-table-wrap {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow);
    overflow: hidden;
}

.it-compare-table-heading {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0;
    padding: 1.25rem 1.5rem 0;
}

.it-compare-table thead th {
    background: var(--it-nav-bg);
    color: #fff;
    font-weight: 600;
    border: none;
    padding: 1rem 1.25rem;
    vertical-align: middle;
}

.it-compare-table-col-label {
    display: block;
    font-size: 0.95rem;
}

.it-compare-table-col-hint {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    opacity: 0.75;
    margin-top: 0.15rem;
}

.it-compare-table tbody td {
    padding: 0.95rem 1.25rem;
    border-color: var(--it-border);
}

.it-compare-table tbody tr:nth-child(even) {
    background: rgba(15, 23, 42, 0.02);
}

.it-compare-table-col--it {
    background: rgba(37, 99, 235, 0.04);
}

.it-compare-table thead .it-compare-table-col--it {
    background: linear-gradient(180deg, #1d4ed8 0%, #1e40af 100%);
}

.it-compare-yes,
.it-compare-no {
    display: inline-block;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 50%;
    vertical-align: middle;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 0.75rem;
}

.it-compare-yes {
    background-color: var(--it-success-soft);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6l2.5 2.5 4.5-5' stroke='%23047857' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.it-compare-no {
    background-color: rgba(239, 68, 68, 0.12);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 3l6 6M9 3 3 9' stroke='%23b91c1c' stroke-width='1.75' stroke-linecap='round'/%3E%3C/svg%3E");
}

.it-compare-note {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.75rem;
    color: var(--it-text-muted);
}

.it-compare-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    box-shadow: var(--it-shadow);
}

.it-compare-cta__title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.it-compare-cta__text {
    color: var(--it-text-muted);
    max-width: 36rem;
    line-height: 1.55;
}

.it-compare-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-compare-examples {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.it-compare-example {
    padding: 1.35rem 1.5rem;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow-sm);
}

.it-compare-example__question {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.it-compare-example__side {
    height: 100%;
    padding: 1rem 1.1rem;
    border-radius: var(--it-radius);
    border: 1px solid var(--it-border);
}

.it-compare-example__side--ai {
    background: rgba(239, 68, 68, 0.04);
    border-color: rgba(239, 68, 68, 0.15);
}

.it-compare-example__side--it {
    background: rgba(37, 99, 235, 0.05);
    border-color: rgba(37, 99, 235, 0.18);
}

.it-compare-example__label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
    color: var(--it-text-muted);
}

.it-compare-example__side p {
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--it-text-muted);
}

/* ——— Buttons (Bootstrap overrides) ——— */

.btn-primary {
    --bs-btn-bg: var(--it-primary);
    --bs-btn-border-color: var(--it-primary);
    --bs-btn-hover-bg: var(--it-primary-hover);
    --bs-btn-hover-border-color: var(--it-primary-hover);
    --bs-btn-active-bg: var(--it-primary-hover);
    font-weight: 600;
    border-radius: var(--it-radius-sm);
    padding: 0.5rem 1.1rem;
}

.btn-outline-primary {
    --bs-btn-color: var(--it-primary);
    --bs-btn-border-color: var(--it-primary);
    --bs-btn-hover-bg: var(--it-primary);
    font-weight: 600;
    border-radius: var(--it-radius-sm);
}

.btn-warning {
    --bs-btn-bg: #f59e0b;
    --bs-btn-border-color: #f59e0b;
    --bs-btn-color: #0f172a;
    font-weight: 600;
    border-radius: var(--it-radius-sm);
}

.btn-success {
    font-weight: 600;
    border-radius: var(--it-radius-sm);
}

.it-btn-cta {
    background: linear-gradient(135deg, var(--it-primary), var(--it-accent));
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 0.65rem 1.35rem;
    border-radius: 999px;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
    transition: transform var(--it-transition), box-shadow var(--it-transition);
}

.it-btn-cta:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.it-btn-ghost-light {
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: transparent;
    font-weight: 500;
    border-radius: var(--it-radius-sm);
}

.it-btn-ghost-light:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
}

.it-btn-upgrade {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    border: none;
    color: #1e293b;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
    transition: transform var(--it-transition), box-shadow var(--it-transition);
}

.it-btn-upgrade:hover {
    color: #0f172a;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(245, 158, 11, 0.45);
}

.it-btn-secondary {
    color: var(--it-primary);
    border: 1.5px solid rgba(37, 99, 235, 0.35);
    background: transparent;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.5rem 1.1rem;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.it-btn-secondary:hover {
    color: #fff;
    background: var(--it-primary);
    border-color: var(--it-primary);
}

.it-btn-secondary:disabled,
.it-btn-secondary[disabled] {
    color: var(--it-text-muted);
    border-color: var(--it-border);
    background: rgba(15, 23, 42, 0.04);
    opacity: 0.85;
    cursor: not-allowed;
    pointer-events: none;
}

.it-btn-danger {
    color: #b42318;
    border: 1.5px solid rgba(220, 38, 38, 0.35);
    background: transparent;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.5rem 1.1rem;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.it-btn-danger:hover {
    color: #fff;
    background: #dc2626;
    border-color: #dc2626;
}

.it-btn-cta--success {
    background: linear-gradient(135deg, #059669, #10b981);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.it-btn-cta--success:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.it-content-hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: linear-gradient(135deg, var(--it-nav-bg) 0%, #334155 100%);
    color: #fff;
    box-shadow: var(--it-shadow-lg);
}

.it-content-hero__main {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 48rem;
}

.it-content-hero__logo {
    border-radius: var(--it-radius);
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

.it-content-hero__title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
    line-height: 1.15;
}

.it-content-hero__lead {
    color: rgba(248, 250, 252, 0.82);
    font-size: 0.95rem;
    line-height: 1.5;
}

.it-status-page {
    max-width: 520px;
    margin: 0 auto;
    padding: 2rem 1.75rem;
    text-align: center;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow-lg);
}

.it-status-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    margin-bottom: 1.25rem;
}

.it-status-icon svg {
    width: 2rem;
    height: 2rem;
}

.it-status-icon--success {
    background: var(--it-success-soft);
    color: #047857;
}

.it-status-icon--error {
    background: var(--it-danger-soft);
    color: #b91c1c;
}

.it-status-icon--warning {
    background: var(--it-warning-soft);
    color: #b45309;
}

.it-status-icon--info {
    background: rgba(2, 132, 199, 0.12);
    color: #0369a1;
}

.it-auth-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    margin: 0 auto 1rem;
}

.it-auth-status svg {
    width: 1.75rem;
    height: 1.75rem;
}

.it-auth-status--success {
    background: var(--it-success-soft);
    color: #047857;
}

.it-auth-status--warning {
    background: var(--it-warning-soft);
    color: #b45309;
}

.it-lock-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    height: 1.25rem;
    color: var(--it-text-muted);
    opacity: 0.7;
    float: right;
}

.it-lock-icon svg {
    width: 100%;
    height: 100%;
}

.it-exam-action-grid--compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 575.98px) {
    .it-exam-action-grid--compact {
        grid-template-columns: 1fr;
    }
}

/* ——— Forms ——— */

.it-panel .form-label {
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--it-text-muted);
}

.form-select,
.form-control {
    border-radius: var(--it-radius-sm);
    border-color: var(--it-border-strong);
    padding: 0.55rem 0.85rem;
}

.form-select:focus,
.form-control:focus {
    border-color: var(--it-primary);
    box-shadow: 0 0 0 3px var(--it-primary-soft);
}

/* ——— Badges ——— */

.it-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    margin-right: 0.35rem;
    margin-bottom: 0.35rem;
}

.it-badge-category {
    background: var(--it-primary-soft);
    color: var(--it-primary);
}

.it-badge-junior {
    background: var(--it-success-soft);
    color: var(--it-success);
}

.it-badge-middle {
    background: var(--it-warning-soft);
    color: #b45309;
}

.it-badge-senior {
    background: var(--it-danger-soft);
    color: var(--it-danger);
}

.it-badge-tech {
    background: rgba(15, 23, 42, 0.06);
    color: var(--it-text);
}

.it-badge-pro {
    background: linear-gradient(135deg, var(--it-success-soft), var(--it-primary-soft));
    color: var(--it-success);
    font-weight: 700;
}

.it-badge-free {
    background: rgba(100, 116, 139, 0.12);
    color: var(--it-text-muted);
}

/* ——— Question cards ——— */

.it-question-card {
    display: flex;
    flex-direction: column;
}

.it-question-card .it-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-bottom: 0.75rem;
}

.it-question-card-tags {
    margin-bottom: 0.75rem;
}

.it-question-card-footer {
    padding: 0.85rem 1.25rem 1.15rem;
    border-top: 1px solid var(--it-border);
    background: rgba(15, 23, 42, 0.02);
}

.it-question-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--it-primary);
    text-decoration: none;
    transition: color var(--it-transition);
}

.it-question-link::after {
    content: "";
    width: 0.85rem;
    height: 0.85rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M4.5 2.5 8 6l-3.5 3.5' stroke='%232563eb' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    transition: transform var(--it-transition);
}

.it-question-link:hover {
    color: var(--it-primary-hover);
}

.it-question-link:hover::after {
    transform: translateX(2px);
}

.question-card.it-card .card-body,
.it-question-card .it-card-body {
    min-height: 140px;
}

.it-question-preview {
    flex: 1;
    color: var(--it-text);
    font-size: 0.9375rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.tech-inactive {
    color: var(--it-text-muted);
}

/* ——— Exam ——— */

.it-exam-hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: linear-gradient(135deg, var(--it-nav-bg) 0%, #1e3a5f 55%, #0f766e 100%);
    color: #fff;
    box-shadow: var(--it-shadow-lg);
}

.it-exam-hero__main {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 40rem;
}

.it-exam-hero__logo {
    border-radius: var(--it-radius);
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

.it-exam-hero__title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
    line-height: 1.15;
}

.it-exam-hero__lead {
    color: rgba(248, 250, 252, 0.82);
    font-size: 0.95rem;
    line-height: 1.5;
}

.it-exam-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-exam-setup__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.it-exam-mode-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.it-exam-mode-icon svg {
    width: 100%;
    height: 100%;
}

.it-exam-mode-icon--lg {
    width: 2.75rem;
    height: 2.75rem;
    padding: 0.55rem;
    border-radius: 0.85rem;
    margin-bottom: 0.15rem;
}

.it-exam-mode-icon--md {
    width: 2rem;
    height: 2rem;
}

.it-exam-mode-icon--sm {
    width: 1rem;
    height: 1rem;
}

.it-exam-mode-icon--test.it-exam-mode-icon--lg {
    background: rgba(37, 99, 235, 0.12);
    color: var(--it-primary);
}

.it-exam-mode-icon--self.it-exam-mode-icon--lg {
    background: rgba(15, 118, 110, 0.12);
    color: #0f766e;
}

.it-exam-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem 0.25rem 0.45rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
}

.it-exam-mode-badge--test {
    background: rgba(37, 99, 235, 0.12);
    color: #1d4ed8;
}

.it-exam-mode-badge--self {
    background: rgba(15, 118, 110, 0.12);
    color: #0f766e;
}

.it-exam-mode-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    height: 100%;
    padding: 1.25rem;
    background: var(--it-bg);
    border: 2px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.it-exam-mode-card:hover {
    border-color: var(--it-primary);
    transform: translateY(-1px);
}

.it-exam-mode-card--active {
    border-color: var(--it-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--it-primary) 20%, transparent);
}

.it-exam-mode-card__input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.it-exam-mode-card__title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--it-text);
}

.it-exam-mode-card__desc {
    font-size: 0.875rem;
    color: var(--it-text-muted);
    line-height: 1.45;
}

.it-exam-timer__icon {
    display: inline-flex;
    color: var(--it-primary);
}

.it-exam-panel {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow-lg);
    padding: 2rem;
}

.exam-timer,
.it-exam-timer {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--it-font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--it-text);
    background: var(--it-bg);
    border: 2px solid var(--it-border-strong);
    border-radius: var(--it-radius-lg);
    padding: 0.5rem 1.25rem;
}

.it-exam-timer--warning {
    color: #b42318;
    border-color: #fecdca;
    background: #fef3f2;
}

.it-exam-session-bar {
    position: sticky;
    top: 0.75rem;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: -0.5rem 0 1.5rem;
    padding: 0.85rem 1rem;
    background: color-mix(in srgb, var(--it-surface) 92%, transparent);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow-lg);
    backdrop-filter: blur(8px);
}

.it-exam-session-bar__main {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.85rem 1.25rem;
}

.it-exam-session-bar__next {
    white-space: nowrap;
}

.it-exam-feedback-actions {
    display: flex;
    justify-content: center;
    margin: 1.25rem 0 0.5rem;
}

.it-exam-progress {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--it-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}

.timer-separator {
    display: inline-block;
    min-width: 0.6rem;
    text-align: center;
}

.timer-separator.timer-separator-off {
    opacity: 0.25;
}

.it-exam-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.5rem;
}

.it-exam-panel--selfcheck {
    border-color: rgba(15, 118, 110, 0.18);
}

.it-exam-reveal {
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    background: var(--it-bg);
    overflow: hidden;
}

.it-exam-reveal__trigger {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.9rem 1.1rem;
    font-weight: 600;
    color: var(--it-primary);
    cursor: pointer;
    list-style: none;
    transition: background 0.15s ease;
}

.it-exam-reveal__trigger::-webkit-details-marker {
    display: none;
}

.it-exam-reveal__trigger:hover {
    background: rgba(37, 99, 235, 0.06);
}

.it-exam-reveal[open] .it-exam-reveal__trigger {
    border-bottom: 1px solid var(--it-border);
    background: rgba(37, 99, 235, 0.06);
}

.it-exam-reveal__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.65rem;
    background: var(--it-primary-soft);
}

.it-exam-reveal__trigger--standalone {
    display: inline-flex;
    width: auto;
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    background: var(--it-bg);
}

.it-exam-reveal .it-answer-card {
    margin: 1rem;
}

.it-exam-action-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.it-exam-action-form {
    min-width: 0;
}

.it-exam-action-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    min-height: 4.5rem;
    padding: 0.9rem 1rem;
    border: 2px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    background: var(--it-surface);
    text-align: left;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.it-exam-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--it-shadow-sm);
}

.it-exam-action-btn__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.75rem;
    flex-shrink: 0;
}

.it-exam-action-btn__icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.it-exam-action-btn__text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.it-exam-action-btn__title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--it-text);
}

.it-exam-action-btn__hint {
    font-size: 0.78rem;
    color: var(--it-text-muted);
}

.it-exam-action-btn--known {
    border-color: rgba(5, 150, 105, 0.25);
    background: rgba(5, 150, 105, 0.05);
}

.it-exam-action-btn--known .it-exam-action-btn__icon {
    background: rgba(5, 150, 105, 0.12);
    color: #047857;
}

.it-exam-action-btn--known:hover {
    border-color: rgba(5, 150, 105, 0.45);
}

.it-exam-action-btn--repeat {
    border-color: rgba(217, 119, 6, 0.25);
    background: rgba(217, 119, 6, 0.05);
}

.it-exam-action-btn--repeat .it-exam-action-btn__icon {
    background: rgba(217, 119, 6, 0.12);
    color: #b45309;
}

.it-exam-action-btn--repeat:hover {
    border-color: rgba(217, 119, 6, 0.45);
}

.it-exam-action-btn--skip {
    border-color: var(--it-border);
    background: var(--it-bg);
}

.it-exam-action-btn--skip .it-exam-action-btn__icon {
    background: rgba(15, 23, 42, 0.06);
    color: var(--it-text-muted);
}

.it-exam-action-btn--skip:hover {
    border-color: var(--it-border-strong);
}

@media (max-width: 767.98px) {
    .it-exam-action-grid {
        grid-template-columns: 1fr;
    }
}

.it-mcq-options {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.it-mcq-option {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--it-bg);
    border: 2px solid var(--it-border);
    border-radius: var(--it-radius-md);
    line-height: 1.45;
}

.it-mcq-option--selectable {
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.it-mcq-option--selectable:has(input:checked) {
    border-color: var(--it-primary);
    background: color-mix(in srgb, var(--it-primary) 8%, var(--it-bg));
}

.it-mcq-option--correct {
    border-color: #198754;
    background: color-mix(in srgb, #198754 12%, var(--it-bg));
}

.it-mcq-option--wrong {
    border-color: #dc3545;
    background: color-mix(in srgb, #dc3545 10%, var(--it-bg));
}

.it-mcq-option__marker {
    flex-shrink: 0;
    width: 1.25rem;
    font-weight: 700;
    text-align: center;
}

.it-exam-result-list .list-group-item {
    border-color: var(--it-border);
    background: var(--it-bg);
}

/* ——— Profile stats ——— */

.it-stat-grid .it-stat-card {
    text-align: center;
    padding: 1.25rem;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow-sm);
    height: 100%;
}

.it-stat-card h5 {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--it-text-muted);
    margin-bottom: 0.5rem;
}

.it-stat-card .it-stat-value {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
    margin: 0;
}

.it-stat-card.it-stat-success .it-stat-value {
    color: var(--it-success);
}

.it-stat-card.it-stat-warning .it-stat-value {
    color: var(--it-warning);
}

.it-profile-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow);
    margin-bottom: 2rem;
}

.it-profile-header img {
    border: 3px solid var(--it-border);
}

.it-profile-hero {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow);
    overflow: hidden;
}

.it-profile-hero__main {
    padding: 1.5rem 1.75rem 1.25rem;
}

.it-profile-hero__identity {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.it-profile-hero__avatar {
    flex-shrink: 0;
    width: 88px;
    height: 88px;
    border-radius: 50%;
    border: 3px solid var(--it-border);
    object-fit: cover;
}

.it-profile-hero__avatar--placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--it-primary-soft) 0%, #dbeafe 100%);
    color: var(--it-primary);
    font-size: 2rem;
    font-weight: 700;
}

.it-profile-hero__name {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    line-height: 1.2;
}

.it-profile-hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-profile-hero__meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem 1.5rem;
}

@media (min-width: 768px) {
    .it-profile-hero__meta {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.it-profile-meta-item__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--it-muted);
    margin-bottom: 0.15rem;
}

.it-profile-meta-item__value {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--it-text);
    word-break: break-word;
}

.it-profile-meta-item__value--muted {
    color: var(--it-muted);
    font-weight: 500;
}

.it-profile-hero__actions {
    border-top: 1px solid var(--it-border);
    padding: 1rem 1.75rem;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.03) 0%, transparent 100%);
}

.it-profile-action {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: var(--it-radius-lg);
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.it-profile-action--pdf {
    border: 1px solid rgba(37, 99, 235, 0.25);
    background: rgba(37, 99, 235, 0.06);
}

.it-profile-action--pdf:hover {
    background: rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.4);
    color: inherit;
    transform: translateY(-1px);
}

.it-profile-action--upgrade {
    position: relative;
    border: 1px solid rgba(217, 119, 6, 0.25);
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    cursor: pointer;
}

.it-profile-action--upgrade:hover {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: rgba(217, 119, 6, 0.4);
    color: inherit;
    transform: translateY(-1px);
}

.it-profile-action--upgrade:hover .it-profile-action__price {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(245, 158, 11, 0.45);
}

.it-profile-action__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.85);
    color: var(--it-primary);
    flex-shrink: 0;
}

.it-profile-action--upgrade .it-profile-action__icon {
    color: #b45309;
}

.it-profile-action__text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    flex: 1;
    min-width: 0;
}

.it-profile-action__title {
    font-weight: 700;
    font-size: 0.95rem;
}

.it-profile-action__hint {
    font-size: 0.8rem;
    color: var(--it-muted);
}

.it-profile-action__price {
    flex-shrink: 0;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    color: #1e293b;
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
    transition: transform var(--it-transition), box-shadow var(--it-transition);
}

.it-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--it-primary-soft);
}

.it-upgrade-banner {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid rgba(217, 119, 6, 0.25);
    border-radius: var(--it-radius-lg);
    padding: 1.5rem 1.75rem;
    margin-bottom: 1.75rem;
}

/* ——— Auth loading overlay ——— */

.it-auth-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.it-auth-loading-overlay[hidden] {
    display: none !important;
}

.it-auth-loading-overlay__card {
    min-width: min(100%, 18rem);
    padding: 2rem 2.25rem;
    border-radius: var(--it-radius-xl);
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    box-shadow: var(--it-shadow-lg);
    text-align: center;
}

.it-auth-loading-spinner {
    width: 2.5rem;
    height: 2.5rem;
    margin: 0 auto 1rem;
    border: 3px solid rgba(37, 99, 235, 0.18);
    border-top-color: var(--it-primary);
    border-radius: 50%;
    animation: it-auth-loading-spin 0.75s linear infinite;
}

.it-auth-loading-overlay__text {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--it-text);
}

.it-auth-loading-overlay__hint {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--it-text-muted);
}

body.it-auth-loading-active {
    overflow: hidden;
}

@keyframes it-auth-loading-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ——— Login ——— */

.it-login-page {
    margin: -0.5rem -0.75rem 0;
    min-height: calc(100vh - 12rem);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 0 2.5rem;
}

.it-login-shell {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 920px;
    width: 100%;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow-lg);
    overflow: hidden;
}

.it-login-hero {
    background: linear-gradient(145deg, var(--it-nav-bg) 0%, #1e3a5f 55%, #312e81 100%);
    color: #fff;
    padding: 2.5rem 2rem;
    display: flex;
    align-items: center;
}

.it-login-hero-content {
    max-width: 22rem;
}

.it-login-brand-logo {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--it-radius);
    object-fit: cover;
    margin-bottom: 1.25rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.it-login-hero-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.it-login-hero-text {
    color: rgba(248, 250, 252, 0.8);
    font-size: 0.9375rem;
    line-height: 1.55;
    margin-bottom: 1.5rem;
}

.it-login-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.it-login-benefits li {
    position: relative;
    padding-left: 1.35rem;
    margin-bottom: 0.55rem;
    font-size: 0.875rem;
    color: rgba(248, 250, 252, 0.9);
}

.it-login-benefits li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.2rem;
    width: 0.85rem;
    height: 0.85rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6.2 5 8.7 9.5 3.8' stroke='%2386efac' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.it-login-panel {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.it-login-card {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
}

.it-login-title {
    font-size: 1.625rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.35rem;
    color: var(--it-text);
}

.it-login-subtitle {
    color: var(--it-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 1.75rem;
}

.it-login-email-form {
    margin-bottom: 0.25rem;
}

.it-login-email-form .form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--it-text);
}

.it-login-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.25rem 0;
    color: var(--it-text-muted);
    font-size: 0.8125rem;
    text-transform: lowercase;
}

.it-login-divider::before,
.it-login-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--it-border);
}

.it-login-register a {
    font-weight: 600;
    text-decoration: none;
}

.it-login-shell--narrow {
    max-width: 480px;
    grid-template-columns: 1fr;
}

.it-login-panel--full {
    padding: 2.5rem 2rem;
}

.it-login-providers {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.it-oauth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--it-radius);
    border: 1px solid var(--it-border-strong);
    background: var(--it-surface);
    color: var(--it-text);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--it-transition), box-shadow var(--it-transition), border-color var(--it-transition);
}

.it-oauth-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--it-shadow);
}

.it-oauth-icon {
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.it-oauth-icon--yandex {
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 50%;
    background: #fc3f1d;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 800;
}

.it-oauth-btn--github {
    background: #24292f;
    border-color: #24292f;
    color: #fff;
}

.it-oauth-btn--github:hover {
    background: #1b1f23;
    border-color: #1b1f23;
    color: #fff;
}

.it-oauth-btn--google:hover {
    border-color: #d1d5db;
}

.it-oauth-btn--yandex {
    border-color: rgba(252, 63, 29, 0.35);
    background: #fff8f6;
}

.it-oauth-btn--yandex:hover {
    border-color: #fc3f1d;
}

.it-vkid-widget {
    width: 100%;
    min-height: 2.75rem;
}

.it-oauth-btn--vk {
    border-color: rgba(0, 119, 255, 0.35);
    background: #f5f9ff;
}

.it-oauth-btn--vk:hover {
    border-color: #0077ff;
}

.it-oauth-icon--vk {
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 0.35rem;
    background: #0077ff;
    color: #fff;
    font-size: 0.55rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.it-login-legal {
    margin: 1.25rem 0 0;
    font-size: 0.75rem;
    line-height: 1.45;
    color: var(--it-text-muted);
    text-align: center;
}

.it-login-dev-hint {
    margin: 1rem 0 0;
    padding: 0.65rem 0.75rem;
    font-size: 0.75rem;
    line-height: 1.45;
    color: #92400e;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--it-radius-sm);
    text-align: left;
}

.it-dev-confirm-link {
    display: inline-block;
    font-weight: 600;
    font-size: 0.8125rem;
    color: #b45309;
    word-break: break-all;
}

.it-login-back {
    text-align: center;
    margin: 1.5rem 0 0;
    font-size: 0.875rem;
}

.it-auth-status {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    margin: 0 auto 1.25rem;
}

.it-auth-status--success {
    background: #dcfce7;
    color: #16a34a;
}

.it-auth-status--warning {
    background: #fef3c7;
    color: #d97706;
}

.it-auth-status--info {
    background: #e0e7ff;
    color: #4f46e5;
}

@media (max-width: 767.98px) {
    .it-login-shell {
        grid-template-columns: 1fr;
    }

    .it-login-hero {
        padding: 1.75rem 1.5rem;
    }

    .it-login-panel {
        padding: 1.75rem 1.5rem 2rem;
    }
}

/* ——— Auth & pricing ——— */

.it-pricing-hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-radius: var(--it-radius-xl);
    background: linear-gradient(135deg, var(--it-nav-bg) 0%, #312e81 55%, #7c3aed 100%);
    color: #fff;
    box-shadow: var(--it-shadow-lg);
}

.it-pricing-hero__main {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 40rem;
}

.it-pricing-hero__logo {
    border-radius: var(--it-radius);
    object-fit: cover;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

.it-pricing-hero__title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
    line-height: 1.15;
}

.it-pricing-hero__lead {
    color: rgba(248, 250, 252, 0.82);
    font-size: 0.95rem;
    line-height: 1.5;
}

.it-pricing-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.it-payment-checkout {
    max-width: 560px;
    margin: 0 auto 2rem;
}

.it-payment-checkout__card {
    width: 100%;
}

.it-payment-checkout__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.it-payment-checkout__eyebrow {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--it-text-muted);
}

.it-payment-checkout__tagline {
    font-size: 0.9rem;
    color: var(--it-text-muted);
}

.it-payment-methods {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--it-border);
}

.it-payment-methods__label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--it-text-muted);
}

.it-payment-methods__logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
}

.it-payment-methods__logos img {
    display: block;
    height: 20px;
    width: auto;
    opacity: 0.92;
}

.it-payment-methods__bank {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
}

.it-payment-methods__bank-link {
    display: inline-flex;
    line-height: 0;
}

.it-payment-methods__bank-link img {
    height: 28px;
    width: auto;
    display: block;
}

.it-payment-methods__hint {
    font-size: 0.78rem;
    color: var(--it-text-muted);
}

.it-legal-doc .it-merchant-requisites {
    margin-bottom: 1.5rem;
}

.it-footer__legal {
    font-size: 0.82rem;
    color: var(--it-text-muted);
    margin-top: 0.35rem;
}

.it-footer__phone {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--it-text-muted);
}

.it-footer__phone:hover {
    color: var(--it-accent);
}

.it-feature-check,
.it-feature-dash {
    display: inline-block;
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.it-feature-check {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6l2.5 2.5 4.5-5' stroke='%23047857' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.it-feature-dash {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6h7' stroke='%2394a3b8' stroke-width='1.75' stroke-linecap='round'/%3E%3C/svg%3E");
}

.it-pricing-card {
    max-width: 520px;
    margin: 0 auto;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow-lg);
    overflow: hidden;
}

.it-pricing-header {
    background: linear-gradient(135deg, var(--it-nav-bg), #1e3a5f);
    color: #fff;
    padding: 2rem;
    text-align: center;
}

.it-pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.it-pricing-body {
    padding: 1.75rem 2rem 2rem;
}

.it-feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
}

.it-feature-list li {
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--it-border);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.it-feature-list li:last-child {
    border-bottom: none;
}

.it-pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-width: 960px;
    margin: 0 auto 2rem;
}

.it-pricing-grid--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 1080px;
}

.it-pricing-plan {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow);
    padding: 2rem 1.75rem;
}

.it-pricing-plan--featured {
    border-color: rgba(124, 58, 237, 0.35);
    box-shadow: 0 12px 40px rgba(124, 58, 237, 0.12), var(--it-shadow);
}

.it-pricing-plan--soon {
    opacity: 0.92;
    border-style: dashed;
    background: linear-gradient(180deg, var(--it-surface) 0%, rgba(248, 250, 252, 0.9) 100%);
}

.it-pricing-plan-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--it-accent);
    background: var(--it-accent-soft);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
}

.it-pricing-plan-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--it-radius);
    margin-bottom: 1rem;
}

.it-pricing-plan-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.it-pricing-plan-icon--basic,
.it-pricing-plan-icon--free {
    background: var(--it-primary-soft);
    color: var(--it-primary);
}

.it-pricing-plan-icon--standard,
.it-pricing-plan-icon--pro {
    background: var(--it-accent-soft);
    color: var(--it-accent);
}

.it-pricing-plan-icon--professional {
    background: rgba(100, 116, 139, 0.12);
    color: var(--it-text-muted);
}

.it-pricing-plan-badge--muted {
    color: var(--it-text-muted);
    background: rgba(100, 116, 139, 0.12);
}

.it-pricing-plan-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
}

.it-pricing-plan-price {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
}

.it-pricing-plan-tagline {
    color: var(--it-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.it-pricing-plan-features {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.it-pricing-plan-features li {
    font-size: 0.95rem;
}

.it-pricing-plan-feature--muted {
    color: var(--it-text-muted);
}

.it-pricing-plan-feature--muted span:first-child {
    opacity: 0.5;
}

.it-pricing-plan-note {
    font-size: 0.8rem;
    color: var(--it-text-muted);
    text-align: center;
    margin: 1rem 0 0;
}

.it-pricing-footnote {
    max-width: 720px;
    margin: 0 auto;
    font-size: 0.875rem;
    line-height: 1.5;
}

@media (max-width: 991.98px) {
    .it-pricing-grid--three {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .it-pricing-grid {
        grid-template-columns: 1fr;
    }

    .it-pricing-plan {
        padding: 1.5rem 1.25rem;
    }
}

/* ——— Question detail ——— */

.it-question-detail {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-xl);
    box-shadow: var(--it-shadow);
    padding: 2rem;
}

.it-answer-card {
    background: var(--it-bg);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    padding: 1.25rem;
    margin-top: 1rem;
    line-height: 1.65;
}

.it-answer-card p {
    margin-bottom: 0.85rem;
}

.it-answer-card p:last-child {
    margin-bottom: 0;
}

.it-answer-card strong {
    color: var(--it-text);
}

.it-answer-card pre {
    margin-bottom: 0;
    border-radius: var(--it-radius-sm);
}

.it-question-nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 0.75rem 1rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--it-border);
}

.it-question-nav__side {
    display: flex;
}

.it-question-nav__side--end {
    justify-content: flex-end;
}

.it-question-nav__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
    padding: 0.45rem 0.95rem;
}

.it-question-nav__btn--disabled {
    opacity: 0.45;
    pointer-events: none;
}

.it-question-nav__status {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    text-align: center;
}

.it-question-nav__counter {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--it-text);
}

.it-question-nav__catalog-link {
    font-size: 0.8125rem;
    color: var(--it-text-muted);
    text-decoration: none;
}

.it-question-nav__catalog-link:hover {
    color: var(--it-primary);
}

.it-question-nav__arrow {
    font-size: 0.9rem;
    line-height: 1;
}

@media (max-width: 767.98px) {
    .it-question-nav {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
    }

    .it-question-nav__status {
        grid-column: 1 / -1;
        order: -1;
        margin-bottom: 0.25rem;
    }

    .it-question-nav__btn {
        width: 100%;
        justify-content: center;
    }

    .it-question-nav__label {
        font-size: 0.875rem;
    }
}

/* ——— Tables & comparison ——— */

.it-table-wrap {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    box-shadow: var(--it-shadow);
    overflow: hidden;
}

.it-table-wrap .table {
    margin-bottom: 0;
}

.it-table-wrap thead th {
    background: var(--it-nav-bg);
    color: #fff;
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    padding: 1rem;
}

.it-table-wrap tbody td {
    padding: 0.9rem 1rem;
    vertical-align: middle;
}

.it-table-wrap tbody tr:nth-child(even) {
    background: rgba(15, 23, 42, 0.02);
}

/* ——— Alerts ——— */

.alert {
    border-radius: var(--it-radius);
    border: none;
    font-weight: 500;
}

.alert-info {
    background: rgba(2, 132, 199, 0.1);
    color: #0369a1;
}

.alert-success {
    background: var(--it-success-soft);
    color: #047857;
}

.alert-warning {
    background: var(--it-warning-soft);
    color: #b45309;
}

.alert-danger {
    background: var(--it-danger-soft);
    color: #b91c1c;
}

/* ——— Progress ——— */

.progress {
    height: 0.65rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.08);
}

.progress-bar {
    background: linear-gradient(90deg, var(--it-primary), var(--it-accent));
    border-radius: 999px;
}

.progress.it-progress-lg {
    height: 1.25rem;
}

/* ——— Pagination ——— */

.pagination .page-link {
    border-radius: var(--it-radius-sm);
    margin: 0 0.15rem;
    border-color: var(--it-border);
    color: var(--it-text);
    font-weight: 500;
}

.pagination .page-item.active .page-link {
    background: var(--it-primary);
    border-color: var(--it-primary);
}

/* ——— Code blocks ——— */

pre,
.it-answer-card pre {
    background: #0f172a !important;
    border-radius: var(--it-radius);
    padding: 1rem !important;
}

pre code.hljs {
    background: transparent !important;
    padding: 0 !important;
}

/* ——— Success / empty states ——— */

.it-success-state {
    text-align: center;
    padding: 3rem 1.5rem;
    max-width: 560px;
    margin: 0 auto;
}

.it-success-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: var(--it-success-soft);
    color: var(--it-success);
    display: grid;
    place-items: center;
    font-size: 1.75rem;
    margin: 0 auto 1.25rem;
}

/* ——— Utilities ——— */

.text-muted {
    color: var(--it-text-muted) !important;
}

.difficulty-junior { background-color: var(--it-success); }
.difficulty-middle { background-color: var(--it-warning); color: #000; }
.difficulty-senior { background-color: var(--it-danger); }

/* ——— Exam review modal ——— */

.it-exam-review-modal {
    border: none;
    border-radius: var(--it-radius-xl);
    overflow: hidden;
}

.it-exam-review-eyebrow {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--it-primary);
    margin: 0;
}

.it-exam-review-score {
    text-align: center;
    background: var(--it-primary-soft);
    border-radius: var(--it-radius-lg);
    padding: 0.65rem 1.1rem;
    min-width: 5.5rem;
}

.it-exam-review-score-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--it-primary);
}

.it-exam-review-score-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--it-text-muted);
}

.it-exam-review-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.65rem;
    margin-bottom: 1.25rem;
}

.it-exam-review-stat {
    text-align: center;
    padding: 0.65rem 0.5rem;
    border-radius: var(--it-radius);
    border: 1px solid var(--it-border);
    background: var(--it-bg);
}

.it-exam-review-stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1.2;
}

.it-exam-review-stat-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--it-text-muted);
}

.it-exam-review-stat--known {
    background: var(--it-success-soft);
    border-color: rgba(5, 150, 105, 0.2);
}

.it-exam-review-stat--known .it-exam-review-stat-value {
    color: var(--it-success);
}

.it-exam-review-stat--repeat {
    background: var(--it-warning-soft);
    border-color: rgba(217, 119, 6, 0.2);
}

.it-exam-review-stat--repeat .it-exam-review-stat-value {
    color: #b45309;
}

.it-exam-review-stat--skipped {
    background: rgba(100, 116, 139, 0.1);
}

.it-exam-review-stat--skipped .it-exam-review-stat-value {
    color: var(--it-text-muted);
}

.it-exam-review-stat--correct {
    background: var(--it-success-soft);
    border-color: rgba(5, 150, 105, 0.2);
}

.it-exam-review-stat--correct .it-exam-review-stat-value {
    color: var(--it-success);
}

.it-exam-review-stat--wrong {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.2);
}

.it-exam-review-stat--wrong .it-exam-review-stat-value {
    color: #b42318;
}

.it-exam-review-stat--time .it-exam-review-stat-value {
    color: var(--it-text);
    font-family: var(--it-font-mono);
    font-size: 1.1rem;
}

.it-exam-review-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.it-review-item {
    display: flex;
    gap: 0.85rem;
    padding: 1rem 1rem 1rem 0.85rem;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: var(--it-radius-lg);
    border-left: 4px solid var(--it-border-strong);
    box-shadow: var(--it-shadow-sm);
}

.it-review-item--known {
    border-left-color: var(--it-success);
}

.it-review-item--repeat {
    border-left-color: var(--it-warning);
}

.it-review-item--skipped {
    border-left-color: #94a3b8;
}

.it-review-item--correct {
    border-left-color: var(--it-success);
}

.it-review-item--wrong {
    border-left-color: #dc2626;
}

.it-review-item-index {
    flex-shrink: 0;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: var(--it-bg);
    color: var(--it-text-muted);
    font-size: 0.8125rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    align-self: flex-start;
}

.it-review-item-body {
    flex: 1;
    min-width: 0;
}

.it-review-item-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.it-review-category {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--it-primary);
}

.it-review-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
}

.it-review-status-icon {
    display: inline-block;
    width: 0.9rem;
    height: 0.9rem;
    vertical-align: middle;
    flex-shrink: 0;
}

.it-review-icon--repeat {
    background-color: rgba(217, 119, 6, 0.12);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 3.5H5V1.5M9.5 8.5H7v2M3.2 5A3.5 3.5 0 0 1 9 4.2M8.8 7A3.5 3.5 0 0 1 3 7.8' stroke='%23b45309' stroke-width='1.25' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 0.7rem;
}

.it-review-icon--neutral {
    background-color: rgba(100, 116, 139, 0.12);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6h7' stroke='%2394a3b8' stroke-width='1.75' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 0.65rem;
}

.it-review-icon--unknown {
    background-color: rgba(100, 116, 139, 0.12);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Ccircle cx='6' cy='6' r='4.25' stroke='%2394a3b8' stroke-width='1.25'/%3E%3Cpath d='M6 5.2V8M6 3.6h.01' stroke='%2394a3b8' stroke-width='1.25' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 0.7rem;
}

.it-review-status--known {
    background: var(--it-success-soft);
    color: var(--it-success);
}

.it-review-status--repeat {
    background: var(--it-warning-soft);
    color: #b45309;
}

.it-review-status--skipped {
    background: rgba(100, 116, 139, 0.12);
    color: var(--it-text-muted);
}

.it-review-status--correct {
    background: var(--it-success-soft);
    color: var(--it-success);
}

.it-review-status--wrong {
    background: rgba(220, 38, 38, 0.1);
    color: #b42318;
}

.it-review-question {
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.45;
    margin: 0 0 0.5rem;
    color: var(--it-text);
}

.it-review-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--it-text-muted);
}

.it-review-answer {
    color: var(--it-text);
}

.it-review-time {
    font-family: var(--it-font-mono);
    font-weight: 500;
}

@media (max-width: 575.98px) {
    .it-exam-review-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991.98px) {
    .it-main {
        padding: 1.25rem 0 2rem;
    }

    .it-exam-panel,
    .it-question-detail {
        padding: 1.25rem;
    }
}