/* ================================================
   TOPIC PAGE STYLES — Linux Wiki
   ================================================ */

/* BREADCRUMB */
.tp-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    margin-left: 2rem;
}

.tp-breadcrumb__link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.tp-breadcrumb__link:hover {
    color: var(--accent);
}

.tp-breadcrumb__sep {
    color: var(--text-muted);
}

.tp-breadcrumb__current {
    color: var(--text-dim);
}

/* LAYOUT */
.tp-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 64px;
    min-height: 100vh;
    gap: 0;
}

/* SIDEBAR */
.tp-sidebar {
    border-right: 1px solid var(--border);
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    overflow-y: auto;
}

.tp-sidebar__inner {
    padding: 2rem 1.25rem;
}

.tp-sidebar__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

/* TOC */
.tp-toc {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    margin-bottom: 2.5rem;
}

.tp-toc__link {
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all var(--transition);
    border-left: 2px solid transparent;
}

.tp-toc__link:hover {
    color: var(--text);
    background: var(--bg-hover);
}

.tp-toc__link.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--code-bg);
}

/* MAIN CONTENT */
.tp-content {
    padding: 3rem 3rem 5rem;
    max-width: 840px;
}

/* HERO */
.tp-hero {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
}

.tp-hero__num {
    font-size: 5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
}

.tp-hero__category {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tp-hero__title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.tp-hero__desc {
    color: var(--text-dim);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.tp-hero__meta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tp-meta-chip {
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-card-2);
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* SECTIONS */
.tp-section {
    margin-bottom: 3.5rem;
    scroll-margin-top: 80px;
}

.tp-section__title {
    font-size: 1.45rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}

.tp-section p {
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.97rem;
}

/* CALLOUTS */
.tp-callout {
    display: flex;
    gap: 1rem;
    padding: 1.1rem 1.25rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
    font-size: 0.92rem;
    line-height: 1.65;
}

.tp-callout__icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.tp-callout ul {
    margin-top: 0.5rem;
    padding-left: 1.25rem;
}

.tp-callout li {
    margin-bottom: 0.35rem;
    color: inherit;
}

.tp-callout strong {
    display: block;
    margin-bottom: 0.3rem;
}

.tp-callout--info {
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.25);
    color: var(--text-dim);
}

.tp-callout--info strong {
    color: var(--accent-2);
}

.tp-callout--tip {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--text-dim);
}

.tp-callout--tip strong {
    color: #10B981;
}

.tp-callout--note {
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid rgba(124, 58, 237, 0.2);
    color: var(--text-dim);
}

.tp-callout--note strong {
    color: var(--accent);
}

.tp-callout--warn {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.2);
    color: var(--text-dim);
}

.tp-callout--warn strong {
    color: #FBBF24;
}

/* DIAGRAM */
.tp-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin: 1.5rem auto;
    max-width: 480px;
}

.tp-diagram__col {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.5;
}

.tp-diagram__col small {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.tp-diagram__col--top {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.tp-diagram__col--mid {
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.35);
    font-weight: 600;
}

.tp-diagram__col--bot {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.25);
}

.tp-diagram__arrow {
    padding: 0.3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* TYPE CARDS */
.tp-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.tp-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition);
}

.tp-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.tp-card__icon {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
}

.tp-card__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.tp-card__desc {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.tp-card__examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* BADGES */
.tp-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tp-badge--blue {
    background: rgba(59, 130, 246, 0.15);
    color: #60A5FA;
}

.tp-badge--gray {
    background: rgba(148, 163, 184, 0.15);
    color: #94A3B8;
}

.tp-badge--orange {
    background: rgba(249, 115, 22, 0.15);
    color: #FB923C;
}

.tp-badge--red {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
}

.tp-badge--green {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
}

.tp-badge--purple {
    background: rgba(168, 85, 247, 0.15);
    color: #C084FC;
}

/* TABLE */
.tp-table-wrap {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    margin: 1.5rem 0;
}

.tp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.tp-table thead {
    background: var(--bg-card-2);
}

.tp-table th {
    padding: 0.8rem 1rem;
    text-align: left;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.tp-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
    line-height: 1.5;
    vertical-align: top;
}

.tp-table tbody tr {
    background: var(--bg-card);
    transition: background var(--transition);
}

.tp-table tbody tr:hover {
    background: var(--bg-hover);
}

.tp-table tbody tr:last-child td {
    border-bottom: none;
}

/* HIGHLIGHT BOX */
.tp-highlight-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin: 1.5rem 0;
}

.tp-highlight-box__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.tp-highlight-box__item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.tp-highlight-box__num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.tp-highlight-box__item strong {
    display: block;
    margin-bottom: 0.25rem;
}

.tp-highlight-box__item p {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

/* DISTROS */
.tp-distros {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin: 1.5rem 0;
}

.tp-distro {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
}

.tp-distro__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.tp-distro--debian .tp-distro__header {
    background: rgba(249, 115, 22, 0.07);
}

.tp-distro--redhat .tp-distro__header {
    background: rgba(239, 68, 68, 0.07);
}

.tp-distro--arch .tp-distro__header {
    background: rgba(168, 85, 247, 0.07);
}

.tp-distro__family {
    font-weight: 700;
    font-size: 0.95rem;
}

.tp-distro__desc {
    padding: 0.9rem 1.25rem 0;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.tp-distro__members {
    padding: 0.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.tp-distro__member {
    font-size: 0.87rem;
    color: var(--text-dim);
    line-height: 1.5;
}

.tp-distro__member strong {
    color: var(--text);
}

.tp-distro__cmd {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card-2);
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
}

.tp-distro__cmd code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.tp-distro__cmd span {
    color: var(--text-muted);
}

/* KERNEL TASKS */
.tp-kernel-tasks {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.5rem 0;
}

.tp-kernel-task {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    padding: 1.1rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.tp-kernel-task:hover {
    border-color: var(--accent);
}

.tp-kernel-task__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tp-kernel-task strong {
    display: block;
    margin-bottom: 0.3rem;
}

.tp-kernel-task p {
    font-size: 0.87rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
}

/* TERMINAL BLOCK */
.tp-terminal-block {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    margin: 1.5rem 0;
}

.tp-terminal-block__bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card-2);
    border-bottom: 1px solid var(--border);
}

.tp-terminal-block__bar span:not(.tp-terminal-block__title) {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.tp-terminal-block__bar span:nth-child(1) {
    background: #FF5F56;
}

.tp-terminal-block__bar span:nth-child(2) {
    background: #FFBD2E;
}

.tp-terminal-block__bar span:nth-child(3) {
    background: #27C93F;
}

.tp-terminal-block__title {
    flex: 1;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.tp-terminal-block__body {
    background: var(--terminal-bg);
    padding: 1.1rem 1.4rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.7;
}

.tp-prompt {
    color: var(--terminal-prompt);
    font-weight: 600;
}

.tp-cmd {
    color: var(--terminal-text);
    margin-left: 0.5rem;
}

.tp-out {
    color: #94A3B8;
}

.tp-comment {
    color: #4B5563;
    font-style: italic;
    margin-top: 0.25rem;
}

/* LINKS SECTION */
.tp-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tp-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text);
    transition: all var(--transition);
}

.tp-link:hover {
    border-color: var(--accent);
    transform: translateX(4px);
}

.tp-link__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tp-link strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.tp-link p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
}

.tp-link__arrow {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: all var(--transition);
}

.tp-link:hover .tp-link__arrow {
    color: var(--accent);
    transform: translateX(3px);
}

/* NAV BUTTONS */
.tp-nav-btns {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.tp-nav-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text);
    transition: all var(--transition);
    flex: 1;
}

.tp-nav-btn:hover:not(.tp-nav-btn--locked) {
    border-color: var(--accent);
    background: var(--code-bg);
}

.tp-nav-btn--next {
    justify-content: flex-end;
    text-align: right;
}

.tp-nav-btn--locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.tp-nav-btn__arrow {
    font-size: 1.25rem;
    color: var(--text-muted);
}

.tp-nav-btn__label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.2rem;
}

.tp-nav-btn__title {
    font-weight: 600;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .tp-layout {
        grid-template-columns: 1fr;
        overflow-x: hidden;
    }

    .tp-sidebar {
        display: none;
    }

    .tp-content {
        padding: 2rem 1.25rem 4rem;
        overflow-x: hidden;
        width: 100%;
    }

    .tp-cards {
        grid-template-columns: 1fr;
    }

    .tp-highlight-box__row {
        grid-template-columns: 1fr;
    }

    .tp-hero {
        flex-direction: column;
        gap: 1rem;
    }

    .tp-hero__num {
        font-size: 3rem;
    }

    .tp-breadcrumb {
        display: none;
    }

    .tp-two-col {
        grid-template-columns: 1fr;
    }
}

/* ===== НОВЫЕ КОМПОНЕНТЫ ===== */

/* ПОДЗАГОЛОВОК СЕКЦИИ */
.tp-subsection-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 1.5rem 0 0.9rem;
    color: var(--text);
}

/* ХРОНОЛОГИЯ */
.tp-timeline {
    position: relative;
    margin: 1.5rem 0;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tp-timeline__item {
    display: flex;
    gap: 1.25rem;
    align-items: baseline;
    padding: 0.75rem 0 0.75rem 1rem;
    position: relative;
    transition: background var(--transition);
    border-radius: var(--radius-sm);
}

.tp-timeline__item::before {
    content: '';
    position: absolute;
    left: -1.6rem;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg-card-2);
    border: 2px solid var(--border);
    transition: all var(--transition);
}

.tp-timeline__item:hover::before {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.tp-timeline__year {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent);
    min-width: 40px;
    flex-shrink: 0;
}

.tp-timeline__event {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ДВУХКОЛОНОЧНЫЙ БЛОК */
.tp-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1.25rem 0;
}

/* БЛОК ИНФОРМАЦИИ */
.tp-info-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.25rem;
    transition: all var(--transition);
}

.tp-info-block:hover {
    border-color: var(--accent);
}

.tp-info-block strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
}

.tp-info-block p {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin: 0 0 0.6rem !important;
}

.tp-info-block--ok {
    border-left: 3px solid #10B981;
}

.tp-info-block--warn {
    border-left: 3px solid #FBBF24;
}

/* БЛОК КОМАНД ТЕРМИНАЛА */
.tp-cmd-block {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    margin: 1.5rem 0;
}

.tp-cmd-block__bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card-2);
    border-bottom: 1px solid var(--border);
}

.tp-cmd-block__bar span:nth-child(1) {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #FF5F56;
    flex-shrink: 0;
}

.tp-cmd-block__bar span:nth-child(2) {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #FFBD2E;
    flex-shrink: 0;
}

.tp-cmd-block__bar span:nth-child(3) {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #27C93F;
    flex-shrink: 0;
}

.tp-cmd-block__bar .tp-terminal-block__title {
    flex: 1;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.tp-cmd-block__body {
    background: var(--terminal-bg);
    padding: 1.25rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* Строка команды */
.tp-cmd-line {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1rem;
}

.tp-cmd-line:first-child {
    margin-top: 0;
}

.tp-cmd-line__prompt {
    color: var(--terminal-prompt);
    font-weight: 700;
    white-space: nowrap;
}

.tp-cmd-line__cmd {
    color: var(--terminal-text);
}

.tp-cmd-line__cmd--multi {
    padding-left: 1rem;
    color: var(--terminal-text);
    white-space: pre-wrap;
    font-family: var(--font-mono);
    line-height: 1.5;
}

.tp-comment {
    color: #94A3B8;
    /* Приглушенный серо-голубой для комментариев */
    font-size: 0.88em;
    font-style: italic;
    opacity: 0.8;
}

/* Комментарий к команде */
.tp-cmd-line__comment {
    font-size: 0.82rem;
    color: #6B7280;
    margin: 0.2rem 0 0 0;
    padding-left: 0.25rem;
    font-style: italic;
    line-height: 1.4;
}

/* Вывод команды */
.tp-cmd-line__out {
    background: rgba(255, 255, 255, 0.03);
    border-left: 2px solid var(--border);
    padding: 0.4rem 0.75rem;
    margin: 0.3rem 0 0.5rem;
    color: #94A3B8;
    font-size: 0.82rem;
    line-height: 1.6;
    white-space: pre-wrap;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* СПИСОК */
.tp-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.tp-list li {
    padding: 0.45rem 0.75rem;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

.tp-list li code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Inline code в тексте */
.tp-section code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

@media (max-width: 640px) {
    .tp-two-col {
        grid-template-columns: 1fr;
    }

    .tp-cmd-line__out {
        white-space: pre-wrap;
    }
}

/* ===== УПРАЖНЕНИЯ ===== */

.tp-exercise {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1.25rem;
    transition: border-color var(--transition);
}

.tp-exercise:hover {
    border-color: rgba(124, 58, 237, 0.3);
}

.tp-exercise__header {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card-2);
}

.tp-exercise__num {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
    padding-top: 0.15rem;
}

.tp-exercise__title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.tp-exercise__meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tp-exercise__tasks {
    padding: 1.25rem 1.5rem;
    font-size: 0.92rem;
    color: var(--text-dim);
    line-height: 1.7;
    border-bottom: 1px solid var(--border);
}

.tp-exercise__tasks p {
    margin-bottom: 0.6rem;
}

.tp-exercise__tasks code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.tp-exercise__list {
    padding-left: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
}

.tp-exercise__list li {
    line-height: 1.55;
}

.tp-exercise__list li code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.82rem;
}

/* РАСКРЫВАЮЩЕЕСЯ РЕШЕНИЕ */

.tp-exercise__summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    list-style: none;
    transition: background var(--transition);
    user-select: none;
}

.tp-exercise__summary::-webkit-details-marker {
    display: none;
}

.tp-exercise__summary:hover {
    background: var(--bg-hover);
}

.tp-exercise__solution[open] .tp-exercise__summary {
    border-bottom: 1px solid var(--border);
}

.tp-exercise__summary-icon {
    font-size: 1rem;
}

/* Стрелка */
.tp-exercise__summary::after {
    content: '▶';
    font-size: 0.65rem;
    margin-left: auto;
    color: var(--text-muted);
    transition: transform var(--transition);
}

.tp-exercise__solution[open] .tp-exercise__summary::after {
    transform: rotate(90deg);
}

.tp-exercise__solution-body {
    padding: 1.25rem 1.5rem;
    border-top: none;
}

/* ШАГ */
.tp-exercise__step {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.tp-exercise__step:first-child {
    margin-top: 0;
}

.tp-exercise__step-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--code-bg);
    color: var(--accent);
    white-space: nowrap;
}

.tp-exercise__step h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

/* PAGINATION (нижняя навигация между темами) */
.tp-pagination {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.tp-pagination__btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.tp-pagination__btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--code-bg);
}

.tp-pagination__btn--next {
    margin-left: auto;
}

/* EXPLANATION SECTION */
.tp-explanation {
    background: var(--bg-card-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.tp-explanation__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tp-explanation__title::before {
    content: "📖";
    font-size: 1.2rem;
}

.tp-explanation__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tp-explanation__list li {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-dim);
    display: flex;
    gap: 0.75rem;
}

.tp-explanation__list li code {
    color: var(--accent);
    background: var(--code-bg);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    flex-shrink: 0;
    height: fit-content;
}
/* === ДОПОЛНИТЕЛЬНАЯ МОБИЛЬНАЯ ОПТИМИЗАЦИЯ ТЕМ === */
@media (max-width: 768px) {
    .tp-hero {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .tp-hero__num {
        font-size: 4rem;
        margin: 0 auto;
    }

    .tp-hero__meta {
        justify-content: center;
    }

    .tp-cards, .tp-highlight-box__row {
        grid-template-columns: 1fr;
    }

    .tp-table-wrap {
        overflow-x: auto;
    }

    .tp-table {
        min-width: 600px; /* Позволяет таблице скроллиться горизонтально */
    }

    .tp-cmd-block__body {
        padding: 0.8rem 1rem;
        font-size: 0.8rem;
        overflow-x: auto;
    }

    .tp-cmd-line {
        flex-wrap: wrap;
        gap: 0.2rem;
    }

    .tp-cmd-line__prompt {
        font-size: 0.75rem;
    }

    .tp-breadcrumb {
        display: none; /* Скрываем крошки в шапке на мобилках для экономии места */
    }
    
    .tp-section__title {
        font-size: 1.25rem;
    }
}