/* ==========================================
   1. ЕДИНЫЕ CSS ПЕРЕМЕННЫЕ (БАЗОВЫЕ)
   ========================================== */
:root {
    /* Базовые цвета (не меняются на страницах) */
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --card-bg-color: #2a2a2a;
    --border-color: #333;
    
    /* Базовые шрифты и отступы */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --border-radius: 12px;
    --transition-speed: 0.3s;
    
    /* Специфичные цвета */
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --result-bg-color: #333;
    --result-accent-bg-color: #1a2e1a;
    
    /* Максимальная ширина контейнера по умолчанию */
    --container-max-width: 700px;
}

/* ==========================================
   2. БАЗОВЫЕ СТИЛИ
   ========================================== */
body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
}

/* ==========================================
   3. ЗАГОЛОВКИ
   ========================================== */
h1 {
    font-size: 2.2em;
    font-weight: 300;
    color: var(--accent-color);
    text-align: center;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 10px;
    margin-top: 0;
    margin-bottom: 30px;
}

h2 {
    font-size: 1.8em;
    font-weight: 300;
    text-align: center;
    color: var(--text-color);
    margin-top: 0;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.4em;
    font-weight: 400;
    color: var(--accent-color);
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
    margin-top: 30px;
    margin-bottom: 20px;
}

/* ==========================================
   4. КАРТОЧКИ И СЕКЦИИ
   ========================================== */
.section-card {
    background-color: var(--card-bg-color);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
    transition: box-shadow var(--transition-speed) ease;
}

/* ==========================================
   5. КНОПКА "НАЗАД"
   ========================================== */
.back-link-container {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    margin-bottom: 20px;
}

.back-link-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: #333;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    transition: background-color var(--transition-speed), transform 0.2s;
    border: 1px solid var(--border-color);
}

.back-link-button:hover, .back-link-button:focus {
    background-color: #444;
    transform: translateY(-2px);
    outline: none;
}

/* ==========================================
   6. МОДАЛЬНОЕ ОКНО
   ========================================== */
.modal { 
    display: none; 
    position: fixed; 
    z-index: 1000; 
    left: 0; 
    top: 0; 
    width: 100%; 
    height: 100%; 
    background-color: rgba(0,0,0,0.85); 
    backdrop-filter: blur(4px); 
    align-items: center; 
    justify-content: center; 
    padding: 20px; 
    box-sizing: border-box; 
}

.modal-content { 
    background-color: var(--card-bg-color); 
    margin: 0; 
    padding: 30px; 
    border: 1px solid #444; 
    width: 100%; 
    max-width: 750px; 
    border-radius: var(--border-radius); 
    position: relative; 
    max-height: 90vh; 
    overflow-y: auto; 
    box-shadow: 0 10px 40px rgba(0,0,0,0.6); 
}

.close-modal { 
    color: #aaa; 
    position: absolute; 
    top: 15px; 
    right: 20px; 
    font-size: 28px; 
    font-weight: bold; 
    cursor: pointer; 
}

.close-modal:hover { color: #fff; }

.modal-content a {
    color: var(--accent-color);
    text-decoration: none;
    transition: 0.3s;
}

.modal-content a:hover {
    filter: brightness(1.2);
    text-decoration: underline;
}

/* ==========================================
   7. ПЕРЕКЛЮЧАТЕЛЬ ЯЗЫКА
   ========================================== */
.raspad-header-flex { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    border-bottom: 2px solid var(--accent-color); 
    padding-bottom: 10px; 
    margin-bottom: 15px; 
    position: relative; 
    flex-wrap: wrap; 
    gap: 10px; 
}

.raspad-header-flex h1 { 
    margin: 0 !important; 
    border: none !important; 
    padding: 0 !important; 
    text-align: center !important; 
    flex-grow: 1; 
}

.raspad-lang-switcher { 
    position: relative; 
    z-index: 100;       
    margin-left: auto;
    min-width: 140px;
}

.raspad-lang-btn { 
    background: #333; 
    color: #e0e0e0; 
    border: 1px solid #444; 
    padding: 8px 15px; 
    border-radius: 6px; 
    cursor: pointer; 
    font-size: 14px; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    gap: 8px; 
    transition: border-color var(--transition-speed), color var(--transition-speed); 
    font-weight: 500; 
    width: 100%;
    box-sizing: border-box;
}

.raspad-lang-btn:hover { 
    border-color: var(--accent-color); 
    color: var(--accent-color); 
}

.raspad-lang-btn .arrow { 
    font-size: 10px; 
    margin-left: 5px; 
}

.raspad-lang-dropdown { 
    display: none; 
    position: absolute; 
    top: 100%; 
    right: 0; 
    background: #2a2a2a; 
    border: 1px solid var(--accent-color);
    border-radius: 6px; 
    list-style: none; 
    padding: 0; 
    margin-top: 5px; 
    overflow: hidden; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.4); 
    z-index: 101; 
    width: 100%;
    box-sizing: border-box;
}

.raspad-lang-dropdown.show { display: block; }

.raspad-lang-dropdown li { 
    padding: 10px 15px; 
    cursor: pointer; 
    color: #e0e0e0; 
    transition: background 0.2s; 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.raspad-lang-dropdown li:hover { 
    background: #3a3a3a; 
    color: var(--accent-color); 
}

.raspad-lang-btn .flag-icon, 
.raspad-lang-dropdown .flag-icon { 
    width: 22px; 
    height: 15px; 
    display: inline-flex; 
    overflow: hidden; 
    border-radius: 2px; 
    flex-shrink: 0; 
    box-shadow: 0 0 2px rgba(0,0,0,0.5); 
}

.raspad-lang-btn .flag-icon svg, 
.raspad-lang-dropdown .flag-icon svg { 
    width: 100%; 
    height: 100%; 
    display: block; 
}

/* ==========================================
   8. МЕДИА-ЗАПРОСЫ (Общие)
   ========================================== */
@media (max-width: 768px) {
    body { padding: 10px; }
    .container { padding: 15px; }
    .section-card { padding: 20px 15px; }
    h1 { font-size: 1.8em; }
    h2 { font-size: 1.5em; }
    .raspad-header-flex { flex-direction: column; }
    .raspad-lang-switcher { margin-left: 0; }
    .back-link-button { padding: 10px 20px; font-size: 15px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .container { max-width: 85%; }
}

@media (min-width: 1025px) {
    .container { max-width: var(--container-max-width); }
    .section-card { padding: 30px; }
}

@media (min-width: 1400px) {
    :root { 
        --container-max-width: 800px; 
    }
}

@media (hover: none) {
    .back-link-button:hover { 
        background-color: #333; 
        transform: none; 
    }
    .back-link-button:focus { 
        box-shadow: 0 0 0 2px var(--accent-color); 
    }
}

/* ==========================================
   9. ФОРМЫ И UI КОМПОНЕНТЫ
   ========================================== */

/* Ряды и группы форм */
.form-row { display: flex; flex-wrap: wrap; gap: 15px; margin-bottom: 15px; align-items: flex-end; }
.form-group { display: flex; flex-direction: column; margin-bottom: 20px; }
.form-group label { margin-bottom: 5px; font-size: 0.85em; color: #bbb; font-weight: 500; }

/* Базовые инпуты и селекты (строго одинаковое оформление) */
select, input[type="text"], input[type="number"] {
    cursor: pointer;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--card-bg-color);
    color: var(--text-color);
    font-size: 16px;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    box-sizing: border-box;
    width: 100%;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

select option { background-color: var(--card-bg-color); color: var(--text-color); }
select optgroup { background-color: #333; color: var(--accent-color); font-weight: bold; font-style: normal; padding: 5px 0; }
select:focus, select:hover, input[type="text"]:focus, input[type="text"]:hover, input[type="number"]:focus, input[type="number"]:hover { 
    outline: none; 
    border-color: var(--accent-color); 
    box-shadow: 0 0 0 2px var(--accent-shadow-color, rgba(255, 255, 255, 0.1)); 
}

input.wide-field { max-width: 220px; } /* Утилита для широких полей */

/* Радио-кнопки */
.radio-group { display: flex; gap: 20px; margin-top: 8px; flex-wrap: wrap; }
.radio-group label { font-weight: normal; display: flex; align-items: center; cursor: pointer; padding: 8px 12px; border-radius: 6px; transition: background-color var(--transition-speed) ease; color: var(--text-color); font-size: 16px; }
.radio-group input[type="radio"] { margin-right: 8px; }
.radio-group label:hover { background-color: rgba(255, 255, 255, 0.05); }
input[type="radio"]:focus + label { outline: 2px solid var(--accent-color); outline-offset: 2px; }

/* Кнопки действий */
.form-actions { display: flex; align-items: center; gap: 12px; margin: 25px 0; flex-wrap: wrap; justify-content: center; }
.btn-action { padding: 12px 25px; border: none; color: #fff; font-weight: bold; border-radius: 6px; cursor: pointer; transition: 0.2s; min-width: 140px; }
.btn-action:hover { filter: brightness(1.2); }

/* Табы */
.tabs { display: flex; list-style: none; padding: 0; margin: 0; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.tab-btn { flex: 1; min-width: 120px; padding: 12px 10px; background: #333; border: 1px solid var(--border-color); border-bottom: none; color: #fff; cursor: pointer; border-radius: 8px 8px 0 0; text-align: center; font-size: 0.9em; transition: 0.3s; white-space: normal; word-break: break-word;}
.tab-btn.active { background: var(--card-bg-color); color: var(--accent-color); font-weight: bold; border-bottom: 1px solid var(--card-bg-color); margin-bottom: -1px; }
.tab-content { display: none; background: var(--card-bg-color); padding: 20px; border: 1px solid var(--border-color); border-top: none; border-radius: 0 0 12px 12px; box-shadow: 0 8px 25px rgba(0,0,0,0.4); }
.tab-content.active { display: block; }

/* Таблицы */
th, td { border: 1px solid var(--border-color); padding: 10px; text-align: center; }
th { background: #444; font-size: 0.9em; }
tbody tr:nth-child(even) { background-color: #3a3a3a; }
tbody tr:hover { background-color: #4a4a4a; }

/* Аккордеон (справочная информация) */
.accordion { border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 20px; overflow: hidden; }
.accordion-head { cursor: pointer; padding: 12px 20px; background: #333; display: flex; justify-content: space-between; align-items: center; font-size: 1.1em; font-weight: bold; user-select: none; transition: background-color 0.3s ease; }
.accordion-head:hover { background-color: #4a4a4a; }
.accordion-head .arrow { transition: transform 0.3s ease; font-size: 1.2em; transform: rotate(180deg); }
.accordion.collapsed .arrow { transform: rotate(0deg); }
.accordion-body { padding: 20px; max-height: 2500px; overflow: hidden; transition: max-height 0.4s ease-out, padding 0.4s ease-out; }
.accordion.collapsed .accordion-body { max-height: 0; padding: 0 20px; }

/* Блоки результатов, списки и заметки */
#results { display: none; }
#results ul { list-style-type: none; padding: 0; margin: 0; }
#results li { 
    padding: 15px; margin-bottom: 10px; 
    background-color: var(--result-bg-color); 
    border-radius: 6px; border-left: 3px solid var(--accent-color); 
    font-size: 16px; display: flex; justify-content: space-between; align-items: center; 
}
#results li strong { color: var(--text-color); }
.result-value { font-weight: bold; color: var(--accent-color); }
#results li:last-child { border-left-color: var(--success-color); background-color: var(--result-accent-bg-color); }
#results li:last-child strong { font-weight: 900; font-size: 1.1em; }
#results li:last-child .result-value { color: var(--success-color); font-size: 1.1em; }

.best-res { background: rgba(46, 204, 113, 0.15); border-left: 4px solid var(--success-color); }
.worst-res { background: rgba(231, 76, 60, 0.15); border-left: 4px solid var(--danger-color); }
.intermediate-box { margin-top: 30px; padding: 15px; border: 1px dashed var(--accent-color); border-radius: 10px; background: rgba(255, 255, 255, 0.03); }
.note { font-size: 0.85em; color: #aaa; background: #222; padding: 15px; border-left: 4px solid var(--accent-color); border-radius: 4px; }
.text-pos { color: var(--success-color); } 
.text-neg { color: var(--danger-color); }

/* Описание под заголовком и кнопка инфо */
.header-desc {
    text-align: center; color: #bbb; margin-bottom: 20px; font-size: 1.05em;
    display: flex; align-items: center; justify-content: center; gap: 15px; padding: 0 10px;
}
.info-btn {
    background: transparent; color: var(--accent-color); border: 2px solid var(--accent-color);
    border-radius: 50%; width: 26px; height: 26px; min-width: 26px; cursor: pointer;
    font-weight: bold; font-size: 16px; display: flex; align-items: center; justify-content: center;
    transition: 0.3s; flex-shrink: 0;
}
.btn-icon { padding: 10px; width: 40px; height: 40px; font-size: 24px; font-weight: bold; display: flex; align-items: center; justify-content: center; color: #fff; border: none; border-radius: 6px; cursor: pointer; transition: 0.2s; }
.btn-icon:hover { filter: brightness(1.15); }
.info-btn:hover { background: var(--accent-color); color: white; box-shadow: 0 0 10px var(--accent-color); }

@media (max-width: 768px) {
    .header-desc { flex-direction: column; }
    .info-btn { order: 2; margin: 0 auto; }
}

/* Медиа-запросы для UI */
@media (max-width: 768px) {
    .form-row { justify-content: center; }
    .form-group input[type="text"], .form-group select { width: 100% !important; max-width: 300px; }
    .tab-btn { flex-basis: 100%; border-radius: 0; margin-bottom: 2px; }
    
    #results li { flex-direction: column; align-items: flex-start; gap: 5px; }
    select { font-size: 18px; padding: 14px; }
    .radio-group { gap: 10px; }
    .radio-group label { padding: 12px 15px; font-size: 16px; }
}

/* ==========================================
   10. УНИФИЦИРОВАННЫЕ КОМПОНЕНТЫ
   ========================================== */

/* Универсальная обертка таблиц (страницы 2, 5) */
.table-wrap {
    display: flex;
    justify-content: center;
    overflow-x: auto;
    padding-bottom: 10px;
    max-height: 400px;
    overflow-y: auto;
    border-radius: 8px;
}
.table-wrap table {
    width: auto;
    margin: 0 auto;
    text-align: center;
    min-width: 600px;
    font-size: 0.9em;
}
.table-wrap th { cursor: pointer; user-select: none; position: relative; transition: background-color 0.2s; }
.table-wrap th:hover { background-color: #555; }
.table-wrap th.dragging { opacity: 0.5; }
.table-wrap th.drag-over { border-left: 3px solid #f1c40f; }
.table-wrap th .sort-indicator { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); font-size: 12px; }

/* Панели выбора (Унификация страниц 6 и 8) */
.selection-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 20px; }
.selection-box { background-color: #333; padding: 20px; border-radius: 8px; border: 1px solid var(--border-color); }
.selection-box h3 { font-weight: 500; margin-top: 0; margin-bottom: 10px; color: var(--text-color); font-size: 1.2em; }
.selection-box p { font-size: 0.9em; color: #aaa; margin-top: 10px; margin-bottom: 0; }

/* Блоки информации о поинтах (Унификация страниц 6 и 8) */
.points-display, .points-info { text-align: center; font-size: 18px; font-weight: bold; color: var(--success-color); padding: 15px; background-color: var(--result-accent-bg-color); border-radius: 8px; border: 1px solid #2a4a2a; margin-bottom: 30px; }

/* Универсальные кнопки действий */
.btn-action { background: linear-gradient(135deg, var(--accent-color), var(--accent-hover-color)); color: #ffffff; border: none; padding: 12px 20px; border-radius: 6px; cursor: pointer; font-size: 16px; font-weight: 500; transition: transform 0.2s ease, box-shadow 0.2s ease; box-shadow: 0 4px 15px var(--accent-shadow-color); }
.btn-action:hover { transform: translateY(-2px); filter: brightness(1.1); }
.btn-reset { background: linear-gradient(135deg, #95a5a6, #7f8c8d); box-shadow: 0 4px 15px rgba(149, 165, 166, 0.3); padding: 8px 15px; font-size: 14px; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
.btn-add { background: linear-gradient(135deg, #2ecc71, #27ae60); box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3); }
.btn-remove { background: linear-gradient(135deg, #e74c3c, #c0392b); box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3); }

/* Уведомления (Toast) - со страницы 8 */
.notification { position: fixed; top: 20px; right: 20px; padding: 15px 20px; border-radius: 5px; color: white; font-weight: 500; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); z-index: 1000; transform: translateX(120%); transition: transform 0.3s ease-out; }
.notification.show { transform: translateX(0); }
.notification.success { background-color: var(--accent-color); }
.notification.error { background-color: var(--danger-color); }
.notification.info { background-color: #3498db; }

/* Глобальный кастомный скроллбар (со страницы 4) */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: #222; }
::-webkit-scrollbar-thumb { background: #444; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #555; }