/*
Theme Name: dds_irtrans.ru
Theme URI: https://irtrans.ru/
Author: Алексей Зимин
Author URI: https://irtrans.ru/
Description: Отраслевой портал по железнодорожному машиностроению. Индустриальная тема для архивов конструкторской документации, учебных пособий и экспертных статей о развитии деповского хозяйства.
Version: 1.1
Requires at least: 6.0
Requires PHP: 8.0
Text Domain: dds_irtrans
*/

/* ============================================================
   1. ПЕРЕМЕННЫЕ И БАЗА
   ============================================================ */
:root {
    --c-dark: #12161A;
    --c-paper: #ECE9E0;
    --c-rust: #C9541E;
    --c-blue: #1B4F72;
    --c-ink: #1F1F1C;
    --c-steel: #4A504C;
    --c-code-bg: #F4F1EA;
    --c-code-line: #2C3E50;
    --c-paper-soft: #F4F1EA;
    --c-line: #C9C3B4;
    --shell: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    background: var(--c-paper);
    color: var(--c-ink);
    font-family: "Segoe UI", "PT Sans", Roboto, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.65;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; }

a {
    color: var(--c-blue);
    text-decoration: none;
}
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
    font-family: "PT Sans Narrow", "Segoe UI", Arial, sans-serif;
    color: var(--c-ink);
    line-height: 1.25;
    margin: 0 0 0.6em;
    letter-spacing: 0.01em;
}
h1 { font-size: 2.05rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

/* Глобальный p без фона — фон только на body и блоках */

ul, ol { margin: 0 0 1em; padding-left: 1.4em; }

code, pre {
    font-family: "Consolas", "Courier New", monospace;
    background: var(--c-code-bg);
    color: var(--c-code-line);
}
code { padding: 1px 5px; border-radius: 3px; }
pre {
    padding: 14px 16px;
    border-left: 3px solid var(--c-code-line);
    overflow-x: auto;
    border-radius: 3px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.4em;
    border: 1px solid var(--c-code-line);
}
th, td {
    border: 1px solid var(--c-code-line);
    padding: 9px 12px;
    text-align: left;
}
th { background: var(--c-code-bg); }

blockquote {
    margin: 0 0 1.2em;
    padding: 8px 18px;
    border-left: 4px solid var(--c-rust);
    background: var(--c-paper-soft);
    color: var(--c-steel);
}

/* ============================================================
   2. КОНТЕЙНЕР ШИРИНЫ (единое место — см. A12.7)
   ============================================================ */
.shell {
    width: min(92%, var(--shell));
    margin-inline: auto;
}

.site-main { padding: 36px 0 56px; }

/* ============================================================
   3. КНОПКИ
   ============================================================ */
.btn {
    display: inline-block;
    padding: 9px 20px;
    border-radius: 4px;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn-primary {
    background: var(--c-rust);
    color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 9px rgba(0, 0, 0, 0.32);
    text-decoration: none;
    color: #fff;
}
.btn-secondary {
    background: transparent;
    color: var(--c-blue);
    border-bottom: 2px solid var(--c-blue);
    border-radius: 0;
    padding: 7px 6px;
}
.btn-secondary:hover {
    background: rgba(201, 84, 30, 0.1);
    text-decoration: none;
    color: var(--c-blue);
}

/* ============================================================
   4. ШАПКА
   ============================================================ */
.site-header {
    background: var(--c-dark);
    color: var(--c-paper);
    border-bottom: 3px solid var(--c-rust);
}
.header-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    padding: 18px 0;
}
.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    flex: 1;
}
.brand-logo,
.brand-svg {
    flex: 0 0 auto;
    width: 56px;
    height: 56px;
    display: block;
}
.brand-text { min-width: 0; }
.site-title {
    margin: 0;
    font-size: 1.15rem;
    line-height: 1.3;
}
.site-title a { color: var(--c-paper); }
.site-title a:hover { text-decoration: none; color: #fff; }
.site-desc {
    margin: 4px 0 0;
    font-size: 0.82rem;
    color: #9aa0a4;
    line-height: 1.45;
}

/* Навигация — металлические шильдики */
.main-nav {
    width: 100%;
    border-top: 1px solid #2a3036;
}
.nav-toggle {
    display: none;
    background: var(--c-rust);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.95rem;
    margin: 12px 0;
}
.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 10px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
}
.main-nav li {
    border-right: 1px solid #2a3036;
    padding-right: 2px;
}
.main-nav li:last-child { border-right: none; }
.main-nav a {
    display: block;
    padding: 7px 16px;
    color: #d4d0c6;
    font-size: 0.92rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: linear-gradient(180deg, #1c2228, #14181c);
    border: 1px solid #2a3036;
    border-radius: 3px;
}
.main-nav a:hover,
.main-nav .current-menu-item > a {
    color: #fff;
    background: var(--c-rust);
    border-color: var(--c-rust);
    text-decoration: none;
}

/* ============================================================
   5. ХЛЕБНЫЕ КРОШКИ
   ============================================================ */
.breadcrumbs {
    font-size: 0.85rem;
    color: var(--c-steel);
    padding: 14px 0 4px;
    margin-bottom: 14px;
    border-bottom: 1px dashed var(--c-line);
}
.breadcrumbs a { color: var(--c-blue); }
.breadcrumbs .sep { margin: 0 7px; color: var(--c-rust); }

/* ============================================================
   6. РАСКЛАДКИ
   ============================================================ */
.layout-with-sidebar {
    display: grid;
    grid-template-columns: minmax(0, 67fr) minmax(0, 27fr);
    gap: 6%;
    align-items: start;
}
.layout-single .content-area {
    width: 85%;
    margin-inline: auto;
}
.content-area { min-width: 0; }

/* ============================================================
   7. КАРТОЧКИ ЗАПИСЕЙ
   ============================================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
    gap: 24px;
    margin: 8px 0 28px;
}
.card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}
.card-thumb {
    display: block;
    overflow: hidden;
}
.card-thumb img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 0.25s ease;
}
.card-thumb:hover img { transform: scale(1.04); }
.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 16px 18px 14px;
}
.card-cat {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--c-rust);
    margin-bottom: 6px;
}
.card-title {
    font-size: 1.18rem;
    margin: 0 0 8px;
}
.card-title a { color: var(--c-ink); }
.card-title a:hover { color: var(--c-rust); text-decoration: none; }
.card-excerpt {
    color: var(--c-steel);
    font-size: 0.93rem;
    margin-bottom: 12px;
}
.card-excerpt p {
    margin: 0 0 0.5em;
    background: none;
}
.card-meta {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 10px;
}
/* Инженерный штамп */
.eng-stamp {
    font-family: "Consolas", monospace;
    font-size: 0.68rem;
    color: var(--c-steel);
    border: 1px solid var(--c-line);
    border-radius: 3px;
    padding: 4px 7px;
    line-height: 1.35;
    background: var(--c-code-bg);
}
.eng-stamp b { color: var(--c-code-line); }

/* Горизонтальная карточка (список «Последние записи» на главной) */
.card-row {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}
.card-thumb-wrap {
    flex: 0 0 280px;
    position: relative;
    overflow: hidden;
}
.card-thumb-wrap a {
    display: block;
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}
.card-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.card-row .card-body { min-width: 0; }

@media (min-width: 601px) {
    .card-row { flex-direction: row; }
}

/* ============================================================
   8. ОДИНОЧНАЯ ЗАПИСЬ / СТРАНИЦА
   ============================================================ */
.entry {
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    padding: 28px 30px;
}
.entry-thumb { margin: 0 0 20px; }
.entry-thumb img {
    display: block;
    width: 100%;
    border-radius: 4px;
}
.entry-title { margin-bottom: 10px; }
.entry-meta {
    font-size: 0.84rem;
    color: var(--c-steel);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--c-line);
}
.entry-content img { border-radius: 4px; }
.entry-content > * { min-width: 0; }

/* ============================================================
   9. САЙДБАР И ВИДЖЕТЫ
   ============================================================ */
.sidebar { min-width: 0; }

.widget {
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    padding: 18px 20px;
    margin-bottom: 24px;
}
.widget-title {
    font-size: 1.05rem;
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--c-rust);
}
.widget ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.widget li {
    padding: 6px 0;
    border-bottom: 1px dashed var(--c-line);
}
.widget li:last-child { border-bottom: none; }

/* Виджеты в сайдбаре — светлый фон, тёмный текст (контраст, см. F) */
.widget-sidebar {
    color: var(--c-ink);
}
.widget-sidebar .widget-title { color: var(--c-ink); }
.widget-sidebar a { color: var(--c-blue); }
.widget-sidebar .post-date,
.widget-sidebar .rss-date {
    display: block;
    font-size: 0.78rem;
    color: var(--c-steel);
}

/* ============================================================
   10. ПОДВАЛ — железнодорожная решётка
   ============================================================ */
.site-footer {
    background: var(--c-dark);
    color: #c4c0b6;
    border-top: 3px solid var(--c-rust);
    margin-top: 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
    padding: 40px 0 30px;
    background-image: repeating-linear-gradient(
        90deg,
        transparent 0,
        transparent 14px,
        rgba(255, 255, 255, 0.03) 14px,
        rgba(255, 255, 255, 0.03) 16px
    );
}
/* Виджеты в футере — тёмный фон, светлый текст (контраст, см. F) */
.widget-footer {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    color: #c4c0b6;
}
.widget-footer .widget-title {
    color: #fff;
    border-bottom-color: var(--c-rust);
}
.widget-footer a { color: #e0b48f; }
.widget-footer a:hover { color: var(--c-rust); }
.widget-footer li { border-bottom-color: #2a3036; }
.widget-footer .post-date { color: #8e9398; }

.site-bottom {
    border-top: 1px solid #2a3036;
    padding: 16px 0;
    font-size: 0.83rem;
    color: #8e9398;
    text-align: center;
}

/* ============================================================
   11. ПАГИНАЦИЯ — квадраты «каталожной карточки»
   ============================================================ */
.pager {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 26px 0 10px;
}
.pager-item .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 8px;
    border: 1px solid var(--c-code-line);
    background: var(--c-code-bg);
    color: var(--c-code-line);
    font-family: "Consolas", monospace;
    letter-spacing: 0.08em;
    border-radius: 0;
}
.pager-item .page-numbers:hover {
    background: rgba(201, 84, 30, 0.12);
    text-decoration: none;
}
.pager-item .page-numbers.current {
    background: var(--c-rust);
    color: #fff;
    border-color: var(--c-rust);
}

/* ============================================================
   12. КОММЕНТАРИИ
   ============================================================ */
.comments-area {
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    padding: 24px 28px;
    margin-top: 28px;
}
.comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.comment-list ul.children {
    list-style: none;
    margin: 0 0 0 26px;
    padding: 0;
}
.comment-body {
    padding: 14px 0;
    border-bottom: 1px dashed var(--c-line);
}
.comment-meta { font-size: 0.83rem; color: var(--c-steel); }
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--c-line);
    border-radius: 3px;
    background: var(--c-code-bg);
    font-family: inherit;
    font-size: 0.95rem;
}
.comment-form textarea { min-height: 130px; }

/* ============================================================
   13. ФОРМА ПОИСКА
   ============================================================ */
.search-form {
    display: flex;
    gap: 8px;
}
.search-form .search-field {
    flex: 1;
    min-width: 0;
    padding: 9px 12px;
    border: 1px solid var(--c-line);
    border-radius: 3px;
    background: var(--c-code-bg);
    font-size: 0.95rem;
}

/* ============================================================
   14. ГЛАВНАЯ СТРАНИЦА
   ============================================================ */
.front-section {
    margin-bottom: 44px;
}
.front-section.alt {
    background: var(--c-paper-soft);
    border: 1px solid var(--c-line);
    border-radius: 4px;
    padding: 30px 32px;
}
.section-head {
    margin-bottom: 22px;
    border-left: 5px solid var(--c-rust);
    padding-left: 14px;
}
.section-head h2 { margin: 0; }
.section-head .lead {
    margin: 6px 0 0;
    color: var(--c-steel);
    font-size: 0.95rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
    gap: 20px;
}
.feature {
    background: #fff;
    border: 1px solid var(--c-line);
    border-top: 3px solid var(--c-blue);
    border-radius: 4px;
    padding: 20px 22px;
    min-width: 0;
}
.feature h3 { color: var(--c-blue); margin-bottom: 8px; }
.feature p { color: var(--c-steel); font-size: 0.93rem; margin: 0; }

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
    gap: 18px;
    counter-reset: step;
}
.step {
    min-width: 0;
    padding: 18px 20px;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    position: relative;
}
.step::before {
    counter-increment: step;
    content: counter(step);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: var(--c-rust);
    color: #fff;
    border-radius: 50%;
    font-family: "Consolas", monospace;
    margin-bottom: 10px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { font-size: 0.9rem; color: var(--c-steel); margin: 0; }

/* Лента телетайпа — слайдер фактов */
.tele-slider {
    background: var(--c-dark);
    color: var(--c-paper);
    border-radius: 4px;
    padding: 28px 30px;
    border: 1px solid #2a3036;
}
.tele-track { position: relative; min-height: 96px; }
.tele-slide {
    font-size: 1.1rem;
    line-height: 1.55;
}
.tele-slide[hidden] { display: none !important; }
.tele-slide .tele-tag {
    display: inline-block;
    font-family: "Consolas", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--c-rust);
    margin-bottom: 8px;
}
.tele-dots {
    display: flex;
    gap: 8px;
    margin-top: 18px;
}
.tele-dot {
    width: 12px;
    height: 12px;
    border: 1px solid var(--c-rust);
    background: transparent;
    border-radius: 0;
    cursor: pointer;
    padding: 0;
}
.tele-dot.active { background: var(--c-rust); }

/* ============================================================
   15. 404
   ============================================================ */
.error-404 {
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: 4px;
    padding: 38px 34px;
    text-align: center;
}
.error-404 .code-big {
    font-family: "Consolas", monospace;
    font-size: 4.5rem;
    color: var(--c-rust);
    line-height: 1;
    margin: 0 0 8px;
}
.error-404 .search-form { max-width: 420px; margin: 22px auto 0; }

/* ============================================================
   16. COOKIE-БАННЕР
   ============================================================ */
/* Правило [hidden] — ДО основного блока стилей баннера (см. A11) */
.cookie-banner[hidden] { display: none !important; }

.cookie-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    padding: 14px 22px;
    background: var(--c-dark);
    color: #d4d0c6;
    border-top: 3px solid var(--c-rust);
    font-size: 0.88rem;
}
.cookie-banner p { margin: 0; flex: 1; min-width: 220px; }
.cookie-banner a { color: #e0b48f; }

/* ============================================================
   17. РЕЖИМ «ЧЕРТЁЖНОЙ» (ночной)
   ============================================================ */
.draft-toggle {
    background: transparent;
    border: 1px solid #2a3036;
    color: #d4d0c6;
    border-radius: 4px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.draft-toggle:hover { border-color: var(--c-rust); color: #fff; }

body.draft-mode {
    --c-paper: #1a1e22;
    --c-paper-soft: #20252a;
    --c-ink: #d8d4c8;
    --c-steel: #9aa0a4;
    --c-line: #343a40;
    --c-code-bg: #20252a;
    --c-code-line: #8fb4cf;
}
body.draft-mode .card,
body.draft-mode .entry,
body.draft-mode .widget-sidebar,
body.draft-mode .feature,
body.draft-mode .step,
body.draft-mode .card-row,
body.draft-mode .comments-area,
body.draft-mode .error-404 {
    background: #21262b;
}
body.draft-mode .widget-sidebar { color: var(--c-ink); }
body.draft-mode th { background: #20252a; }

/* ============================================================
   18. АДАПТИВ
   ============================================================ */
@media (max-width: 960px) {
    .layout-with-sidebar {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }
    .footer-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 26px;
    }
    .layout-single .content-area { width: 100%; }
}

@media (max-width: 600px) {
    body { font-size: 16px; }
    h1 { font-size: 1.7rem; }
    .nav-toggle { display: inline-block; }
    .main-nav ul {
        display: none;
        flex-direction: column;
    }
    .main-nav ul.open { display: flex; }
    .main-nav li { border-right: none; padding-right: 0; }
    .main-nav a { border-radius: 3px; }

    .card-thumb-wrap {
        flex: none;
        width: 100%;
        position: static;
    }
    .card-thumb-wrap a { position: static; }
    .card-thumb-wrap img {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }
    .entry { padding: 20px 18px; }
    .front-section.alt { padding: 22px 18px; }
}