/* calc/assets/css/calculators/text_diff.css */

:root {
    --bg-card: #FFFFFF; 
    --text-main: #0F172A; 
    --text-muted: #64748B; 
    
    /* Emerald Accents */
    --accent-emerald: #10B981; 
    --accent-emerald-hover: #059669;
    --accent-emerald-glow: rgba(16, 185, 129, 0.2);
    
    /* Diff Colors */
    --diff-del-bg: #FEE2E2; /* Light Red */
    --diff-del-text: #991B1B; /* Dark Red */
    --diff-ins-bg: #DCFCE7; /* Light Green */
    --diff-ins-text: #166534; /* Dark Green */
    
    --border-color: #E2E8F0;
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.calc-header { margin-bottom: 32px; }
.subtitle { color: var(--text-secondary); margin-top: 8px; }

/* УТИЛИТЫ */
.hidden { display: none !important; }

/* ЖЕСТКАЯ СЕТКА */
.calc-grid.diff-grid { 
    display: flex !important; flex-direction: column !important; gap: 24px; align-items: stretch; 
    width: 100%; box-sizing: border-box; 
}

.calc-inputs, .calc-results { 
    min-width: 0 !important; max-width: 100% !important; box-sizing: border-box !important; 
}

/* СПЛИТ-КОНТЕЙНЕР (Два окна рядом на ПК) */
.diff-split-container {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px;
}

.diff-col { display: flex; flex-direction: column; gap: 8px; width: 100%; box-sizing: border-box;}

/* ИСПРАВЛЕНИЕ 1: Шапка колонки теперь flex-wrap чтобы элементы не давили друг друга на ПК */
.diff-col-header { 
    display: flex; justify-content: space-between; align-items: center; 
    flex-wrap: wrap; gap: 8px; margin-bottom: 4px;
}

.badge-original { font-size: 11px; font-weight: 800; background: #F1F5F9; color: #475569; padding: 6px 10px; border-radius: 6px; text-transform: uppercase; display: inline-block;}
.badge-changed { font-size: 11px; font-weight: 800; background: #EEF2FF; color: #4F46E5; padding: 6px 10px; border-radius: 6px; text-transform: uppercase; display: inline-block;}

.ghost-btn {
    background: transparent; border: 1px solid #CBD5E1; color: #64748B;
    padding: 6px 12px; border-radius: 6px; font-size: 11px; font-weight: 700;
    cursor: pointer; transition: all 0.2s; text-transform: uppercase;
}
.ghost-btn:hover { background: #F1F5F9; border-color: #94A3B8; color: #0F172A; }

.diff-textarea {
    width: 100%; min-height: 250px; padding: 16px; font-size: 14px; line-height: 1.5;
    border: 2px solid var(--border-color); border-radius: 12px; background: #F8FAFC;
    color: var(--text-main); resize: vertical; outline: none; transition: all 0.3s;
    box-sizing: border-box; font-family: inherit;
}
.diff-textarea:focus { border-color: var(--accent-emerald); box-shadow: 0 0 0 4px var(--accent-emerald-glow); background: #FFF;}

/* ПАНЕЛЬ УПРАВЛЕНИЯ (ИСПРАВЛЕНИЕ 2: Wrap для ПК) */
.diff-controls {
    display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
    padding-top: 24px; border-top: 1px solid var(--border-color);
}

.settings-panel { display: flex; align-items: center; flex: 1; min-width: 250px; box-sizing: border-box;}
.toggle-switch { display: flex; align-items: center; cursor: pointer; gap: 12px; width: 100%;}
.toggle-switch input { display: none; }
.toggle-slider {
    position: relative; width: 44px; height: 24px; background-color: #CBD5E1;
    border-radius: 34px; transition: .3s; flex-shrink: 0;
}
.toggle-slider:before {
    position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px;
    background-color: white; border-radius: 50%; transition: .3s;
}
.toggle-switch input:checked + .toggle-slider { background-color: var(--accent-emerald); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(20px); }
/* Защита текста от вытеснения ползунком */
.toggle-label { font-size: 13px; font-weight: 600; color: var(--text-main); line-height: 1.4; word-break: break-word;}

.action-btn {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px; font-size: 15px; font-weight: 700; border-radius: 12px; border: none; cursor: pointer;
    transition: all 0.2s; min-width: 200px;
}
.emerald-btn { background: var(--accent-emerald); color: #FFF; box-shadow: 0 8px 20px var(--accent-emerald-glow); }
.emerald-btn:hover { background: var(--accent-emerald-hover); transform: translateY(-2px); box-shadow: 0 12px 25px rgba(16, 185, 129, 0.3); }

/* РЕЗУЛЬТАТЫ (ЯДЕРНАЯ ИЗОЛЯЦИЯ CMS) */
#result-card.card--diff-result { 
    background: #FFFFFF !important; 
    color: var(--text-main) !important; 
    border: 1px solid #E2E8F0 !important; 
    border-radius: 24px !important;
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.05) !important;
    overflow: hidden !important; 
    padding: 24px 0 0 0 !important; 
    display: flex !important; 
    flex-direction: column !important;
    min-width: 0 !important; 
    max-width: 100% !important; 
    box-sizing: border-box !important;
    isolation: isolate !important; 
    -webkit-mask-image: -webkit-radial-gradient(white, black) !important; 
    transform: translateZ(0) !important; 
}
#result-card.card--diff-result::before, 
#result-card.card--diff-result::after { display: none !important; }

/* ИСПРАВЛЕНИЕ 3: Шапка результатов не наезжает на Легенду */
.result-header-wrap { 
    display: flex; justify-content: space-between; align-items: center; 
    flex-wrap: wrap; gap: 12px; margin: 0 24px 16px;
}

.emerald-title { 
    color: var(--accent-emerald); font-size: 12px; font-weight: 800; 
    letter-spacing: 0.1em; text-transform: uppercase; margin: 0;
}

.diff-legend { display: flex; gap: 12px; flex-wrap: wrap;}
.diff-legend span { font-size: 11px; font-weight: 700; padding: 4px 8px; border-radius: 6px; text-transform: uppercase;}
.legend-del { background: var(--diff-del-bg); color: var(--diff-del-text); }
.legend-ins { background: var(--diff-ins-bg); color: var(--diff-ins-text); }

.empty-state {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 60px 24px; color: var(--text-muted); text-align: center;
    font-size: 14px; font-weight: 500; flex: 1;
}

/* ОКНО С РАЗНИЦЕЙ (DIFF) */
.diff-output-box {
    margin: 0 24px 24px; background: #F8FAFC; border: 1px solid #E2E8F0;
    border-radius: 12px; padding: 20px; overflow-x: auto;
}
.diff-content {
    font-size: 15px; line-height: 1.6; color: #1E293B; font-family: inherit;
    white-space: pre-wrap; word-break: break-word;
}

/* СТИЛИЗАЦИЯ ТЕГОВ DIFF */
.diff-content del {
    background: var(--diff-del-bg); color: var(--diff-del-text);
    text-decoration: line-through; border-radius: 4px; padding: 0 2px;
}
.diff-content ins {
    background: var(--diff-ins-bg); color: var(--diff-ins-text);
    text-decoration: none; border-radius: 4px; padding: 0 2px;
}


/* SEO ИНФОБЛОКИ И ТАБЛИЦЫ */
.info-wrapper { padding: 60px 0; margin-top: 60px; border-top: 1px solid rgba(0,0,0,0.06); margin-bottom: 20px; }
.icon-heading { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; font-size: 24px; font-weight: 800; color: var(--text-primary); line-height: 1.3; }
.header-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 14px; background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.04); flex-shrink: 0; margin-top: -4px; }
.header-icon svg { width: 24px; height: 24px; stroke-width: 2px; }
.emerald-icon svg { color: var(--accent-emerald); }
.slate-icon svg { color: #64748B; }
.intro-text { font-size: 16px; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.6; }

.formulas-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 48px; width: 100%; box-sizing: border-box;}
.formula-card { background: #fff; border: 1px solid rgba(0,0,0,0.04); box-shadow: 0 4px 20px rgba(0,0,0,0.03); border-radius: 24px; padding: 24px; display: flex; flex-direction: column; min-width: 0; max-width: 100%; box-sizing: border-box;}
.formula-header { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.formula-card h3 { margin: 0; font-size: 18px; font-weight: 700; color: var(--text-primary); line-height: 1.3; }

.badge-emerald { background: #ECFDF5; color: #059669; padding: 6px 12px; border-radius: 99px; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.badge-dark { background: #F1F5F9; color: #334155; padding: 6px 12px; border-radius: 99px; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.formula-card p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.5; font-weight: 500; }
.soft-divider { border: none; height: 1px; background: linear-gradient(90deg, transparent, #E2E8F0, transparent); margin: 48px 0; }

.faq-section .faq-item { background: #fff; border: 1px solid #E2E8F0; border-radius: 12px; margin-bottom: 12px; overflow: hidden; transition: all 0.2s ease; }
.faq-section .faq-item[open] { border-color: var(--accent-emerald); box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
summary.faq-question { padding: 16px 20px; cursor: pointer; font-weight: 600; color: var(--text-primary); list-style: none; display: flex; justify-content: space-between; align-items: center; transition: background 0.2s; }
summary.faq-question:hover { background-color: #F8FAFC; }
.faq-section .faq-item[open] summary.faq-question { color: #059669; background: #ECFDF5; }
.faq-question::after { content: '+'; font-size: 20px; color: var(--text-secondary); font-weight: 400; line-height: 1; }
.faq-question .icon-plus { display: none; }
.faq-section .faq-item[open] summary.faq-question::after { content: '−'; color: #059669; }
.faq-answer, .faq-item div[itemprop="text"] { padding: 20px; color: var(--text-secondary); line-height: 1.6; font-size: 15px; }


/* ========================================================
   ИСТИННАЯ МОБИЛЬНАЯ АДАПТАЦИЯ (ЖЕСТКАЯ КОЛОНКА)
   ======================================================== */
@media (max-width: 900px) {
    .formulas-grid { grid-template-columns: 1fr !important; gap: 16px !important; margin-bottom: 32px !important; }
    
    /* Схлопываем сплит-экраны в колонку */
    .diff-split-container { grid-template-columns: 1fr !important; gap: 24px !important; }
    
    /* ИСПРАВЛЕНИЕ: Шапка колонки на мобилках растягивает кнопки */
    .diff-col-header { flex-direction: column !important; align-items: stretch !important; gap: 12px !important; }
    .badge-original, .badge-changed { text-align: center !important; }
    .clear-col-btn { width: 100% !important; padding: 12px !important; font-size: 13px !important; }
    
    /* Уменьшаем высоту полей ввода */
    .diff-textarea { min-height: 180px !important; font-size: 14px !important; }
    
    /* Панель контролов в колонку */
    .diff-controls { flex-direction: column !important; align-items: stretch !important; gap: 16px !important; padding-top: 16px !important; }
    .settings-panel { width: 100% !important; }
    .toggle-label { font-size: 12px !important; }
    .emerald-btn { width: 100% !important; padding: 16px !important; }
    
    /* Темная карточка результатов (исправляем отступы) */
    #result-card.card--diff-result { border-radius: 16px !important; padding: 20px 0 0 0 !important; }
    
    /* ИСПРАВЛЕНИЕ: Заголовок и легенда встают друг под друга */
    .result-header-wrap { flex-direction: column !important; align-items: flex-start !important; margin: 0 16px 16px !important; }
    .diff-legend { width: 100% !important; justify-content: flex-start !important; }
    
    .diff-output-box { margin: 0 16px 16px !important; padding: 16px !important; font-size: 14px !important; }
}