:root {
    --bg-color: #f6f8fa; --container-bg: #ffffff; --text-color: #24292e; --border-color: #e1e4e8;
    --drop-zone-bg: #f1f8ff; --drop-zone-border: #0366d6; --drop-zone-hover: #c8e1ff;
    --btn-bg: #28a745; --btn-hover: #218838; --btn-disabled: #6c757d; --btn-danger: #d73a49; --btn-danger-hover: #cb2431;
    --btn-toggle-bg: #e1e4e8; --btn-toggle-hover: #d1d5da; --btn-toggle-text: #24292e;
    --btn-collapse-bg: #f1f8ff; --btn-collapse-hover: #c8e1ff;
    --insert-bg: #e6ffec; --insert-text: #22863a; --delete-bg: #ffeef0; --delete-text: #b31d28;
    --diff-left-bg: #fafbfc; --diff-right-bg: #ffffff; --header-bg: #f1f8ff; --header-text: #0366d6;
}

[data-theme="dark"] {
    --bg-color: #0d1117; --container-bg: #161b22; --text-color: #c9d1d9; --border-color: #30363d;
    --drop-zone-bg: #0d1117; --drop-zone-border: #58a6ff; --drop-zone-hover: #1f6feb;
    --btn-bg: #238636; --btn-hover: #2ea043; --btn-disabled: #484f58;
    --btn-toggle-bg: #21262d; --btn-toggle-hover: #30363d; --btn-toggle-text: #c9d1d9;
    --btn-collapse-bg: #1f2428; --btn-collapse-hover: #30363d;
    --insert-bg: rgba(46, 160, 67, 0.15); --insert-text: #3fb950;
    --delete-bg: rgba(248, 81, 73, 0.15); --delete-text: #f85149;
    --diff-left-bg: #0d1117; --diff-right-bg: #161b22; --header-bg: #0d1117; --header-text: #58a6ff;
}

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

body {
    font-family: 'Courier New', Courier, monospace;
    background: var(--bg-color);
    color: var(--text-color);
    padding: 20px;
    max-width: 100%;
    margin: 0 auto;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- БАЗОВЫЕ КОНТЕЙНЕРЫ (Объединение логики панелей) --- */
.top-bar, .container, .session-container, .mtg-container, .spoiler, .dropdown-content, .a4-preview, #ad-container {
    background: var(--container-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* --- БАЗОВЫЕ КНОПКИ (Объединение логики всех кнопок) --- */
.btn, .theme-btn, .tab-btn, .btn-toggle, .btn-close, .btn-collapse, .btn-export, .copy-btn, .download-btn, .donate-btn, .dropbtn {
    font-family: inherit;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    gap: 8px;
}

.btn:disabled, .btn-export:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-export:disabled { cursor: wait; }

/* --- БАЗОВЫЕ ТЕКСТОВЫЕ ПОЛЯ (Объединение inputs и textareas) --- */
textarea.raw-input, input[type="url"].raw-input, .mtg-container textarea, .mtg-container .lang-input, .output-box, .output-box-wrap {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    transition: border 0.2s;
    resize: vertical;
}

textarea.raw-input:focus, input[type="url"].raw-input:focus, .mtg-container textarea:focus, .mtg-container .lang-input:focus {
    border-color: var(--drop-zone-border);
    outline: none;
}

/* --- БАЗОВЫЕ ПРЕДУПРЕЖДЕНИЯ (Ошибки, ворнинги) --- */
#file-warning, .mtg-container .warning, #adblock-warning {
    color: var(--delete-text);
    background-color: var(--delete-bg);
    border: 1px solid var(--delete-text);
    padding: 12px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    animation: fadeIn 0.3s;
    display: none;
}

/* --- ШАПКА И НАВИГАЦИЯ --- */
.top-bar { padding: 10px 20px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.lang-switcher { display: flex; gap: 15px; }
.lang-switcher span { cursor: pointer; font-size: 24px; opacity: 0.3; transition: 0.2s; filter: grayscale(80%); }
.lang-switcher span:hover { transform: scale(1.1); opacity: 0.7; }
.lang-switcher span.active { opacity: 1; filter: grayscale(0%); }

.theme-btn, .btn-toggle, .btn-export, .tab-btn { background: var(--btn-toggle-bg); color: var(--btn-toggle-text); padding: 8px 16px; }
.theme-btn:hover, .btn-toggle:hover, .btn-export:hover:not(:disabled), .tab-btn:hover { background: var(--btn-toggle-hover); }

/* Выпадающее меню */
.tools-nav { display: flex; gap: 15px; padding: 10px 20px; background: var(--container-bg); border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.dropdown { position: relative; display: inline-block; }
.dropbtn { background-color: #6c757d; color: white; padding: 10px 20px; font-size: 14px; box-shadow: none; }
.dropbtn.active, .dropdown:hover .dropbtn { background-color: var(--btn-bg); box-shadow: 0 0 12px rgba(76, 175, 80, 0.6); filter: brightness(1.1); }
.dropdown-content { display: none; position: absolute; min-width: 200px; z-index: 1000; top: 100%; left: 0; overflow: hidden; }
.dropdown-content a { color: var(--text-color); padding: 12px 16px; display: block; font-size: 14px; transition: 0.2s; }
.dropdown-content a:hover, .dropdown-content a.active { background-color: rgba(0, 123, 255, 0.1); color: #007bff; font-weight: bold; }
.dropdown:hover .dropdown-content { display: block; }

/* --- ОСНОВНОЙ КОНТЕНТ И ТАБЫ --- */
.container { padding: 30px; text-align: center; margin-bottom: 20px; }
.container.text-left { text-align: left; line-height: 1.6; font-size: 16px; }

.tabs { display: flex; gap: 10px; margin-bottom: 20px; overflow-x: auto; padding-bottom: 5px; }
.tabs a { text-decoration: none; display: inline-block; text-align: center; }
.tab-btn { padding: 10px 20px; font-size: 16px; border: 1px solid var(--border-color); white-space: nowrap; }
.tab-btn.active { background: var(--btn-bg); color: white; border-color: var(--btn-bg); }
.tab-content { display: none; animation: fadeIn 0.3s; }
.tab-content.active { display: block; }

/* --- ФАЙЛОВЫЕ ЗОНЫ (Drop Zones) --- */
.drop-zones { display: flex; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
.input-col { flex: 1; display: flex; flex-direction: column; gap: 10px; min-width: 280px; }
.drop-zone { flex: 1; padding: 40px 20px; border: 2px dashed var(--drop-zone-border); border-radius: 8px; background: var(--drop-zone-bg); cursor: pointer; transition: 0.3s; display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 60px; }
.drop-zone.hover { background: var(--drop-zone-hover); border-style: solid; }
input[type="file"] { display: none; }
.or-text { font-size: 14px; font-weight: bold; color: var(--btn-disabled); margin: 5px 0; }
textarea.raw-input { min-height: 120px; }

/* --- ОСНОВНЫЕ КНОПКИ ДЕЙСТВИЙ --- */
.btn, .download-btn { background: var(--btn-bg); color: white; padding: 12px 24px; font-size: 16px; }
.btn:hover, .download-btn:hover { background: var(--btn-hover); }
.btn:disabled { background: var(--btn-disabled); }
.btn-danger, .btn-close { background: var(--btn-danger); color: white; }
.btn-danger:hover, .btn-close:hover { background: var(--btn-danger-hover); }

/* --- СЕССИИ И ДИФФЫ (Diff Viewer) --- */
.session-container { margin-top: 30px; overflow: hidden; }
.session-header { background: var(--header-bg); padding: 10px 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.session-header h4 { margin: 0; color: var(--header-text); word-break: break-all; padding-right: 15px; }
.controls { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.btn-collapse { background: var(--btn-collapse-bg); color: var(--header-text); border: 1px solid var(--border-color); padding: 6px 12px;}
.btn-collapse:hover { background: var(--btn-collapse-hover); }
.btn-close, .btn-toggle, .btn-export { padding: 6px 12px; }

.diff-container { background: var(--container-bg); border-top: 1px solid var(--border-color); font-size: 14px; line-height: 1.5; }
.diff-container.hidden { display: none; }
.diff-row { display: block; border-bottom: 1px solid var(--border-color); }

/* Логика режимов Diff (SBS / Inline) */
.view-inline { display: none; }
.view-sbs { display: flex; }
.inline-mode .view-sbs, .mode-sbs .view-inline { display: none; }
.inline-mode .view-inline, .mode-sbs .view-sbs { display: flex; }

.diff-left, .diff-right, .view-inline { flex: 1; padding: 8px 15px; white-space: pre-wrap; word-break: break-all; }
.mode-sbs .diff-left, .diff-left { width: 50%; border-right: 1px solid var(--border-color); background: var(--diff-left-bg); }
.mode-sbs .diff-right, .diff-right, .inline-mode .view-inline { background: var(--diff-right-bg); }

.diff-left[class*="language-"], .diff-right[class*="language-"], .view-inline[class*="language-"] { background: transparent !important; text-shadow: none !important; }
span.insert { background-color: var(--insert-bg) !important; color: var(--insert-text) !important; font-weight: bold; }
span.delete { background-color: var(--delete-bg) !important; color: var(--delete-text) !important; text-decoration: line-through; }

/* Прогресс-бар загрузки */
.loading-container { padding: 40px; text-align: center; }
.progress-bar { width: 100%; max-width: 400px; height: 12px; background: var(--border-color); border-radius: 6px; margin: 15px auto; overflow: hidden; position: relative; }
.progress-bar::after { content: ''; position: absolute; top: 0; left: 0; height: 100%; width: 40%; background: var(--drop-zone-border); border-radius: 6px; animation: progress 1.5s infinite ease-in-out; }
@keyframes progress { 0% { left: -40%; } 100% { left: 100%; } }

/* --- ПРОЧИЕ КОМПОНЕНТЫ --- */
#adblock-warning { margin-bottom: 15px; }
#ad-container { margin-top: 40px; padding: 20px; text-align: center; color: var(--btn-disabled); min-height: 90px; display: flex; align-items: center; justify-content: center; border-style: dashed; }
#file-warning { margin-bottom: 20px; }

.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-weight: bold; }
.checkbox-label input[type="checkbox"] { cursor: pointer; width: 16px; height: 16px; }

/* Донаты */
.donate-container { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 20px; }
.donate-btn { padding: 12px 24px; font-size: 16px; color: #ffffff !important; }
.donate-btn:hover { transform: translateY(-3px); filter: brightness(1.1); }
.btn-boosty { background: linear-gradient(135deg, #F15F2C 0%, #E63B2E 100%); box-shadow: 0 4px 15px rgba(241, 95, 44, 0.3); }
.donate-btn svg { width: 24px; height: 24px; fill: currentColor; }

/* Changelog & Сборка */
.build-info { font-size: 0.9em; color: var(--text-color); opacity: 0.8; margin-top: 20px; padding: 12px; background: var(--bg-color); border-radius: 8px; border: 1px solid var(--border-color); }
.changelog-container { margin-top: 20px; padding: 15px; background: var(--bg-color); border: 1px solid var(--border-color); border-radius: 8px; }
.changelog-container h3 { margin-top: 0; margin-bottom: 10px; color: var(--header-text); }
.changelog-content { white-space: pre-wrap; font-family: inherit; font-size: 0.95em; max-height: 300px; overflow-y: auto; line-height: 1.5; padding-right: 5px; }
.changelog-content::-webkit-scrollbar { width: 6px; }
.changelog-content::-webkit-scrollbar-track { background: transparent; }
.changelog-content::-webkit-scrollbar-thumb { background: var(--btn-disabled); border-radius: 3px; }

/* Поля вывода */
.output-box, .output-box-wrap { height: 150px; font-family: monospace; padding: 10px; margin-top: 5px; white-space: pre; overflow-x: auto; }
.result-header { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; }
.copy-btn { padding: 5px 10px; background: var(--btn-bg); color: white; }

/* Спойлеры */
.spoiler { margin-bottom: 15px; padding: 15px; transition: all 0.3s ease; }
.spoiler summary { font-weight: bold; font-size: 1.1em; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--text-color); }
.spoiler summary::after { content: '▼'; font-size: 0.8em; transition: transform 0.3s ease; }
.spoiler[open] summary::after { transform: rotate(180deg); }
.spoiler summary::-webkit-details-marker { display: none; }
.spoiler-content { margin-top: 15px; padding-top: 15px; border-top: 1px solid var(--border-color); line-height: 1.5; text-align: left; }
.spoiler-content ul { padding-left: 20px; margin-bottom: 15px; }

/* MTG Generator */
.mtg-container { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 15px; padding: 30px; }
.mtg-container h2 { margin-top: 0; color: var(--header-text); }
.mtg-container p { margin-top: 0; margin-bottom: 5px; opacity: 0.8; }
.mtg-container textarea { height: 250px; }
.mtg-container .controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mtg-container .lang-input { width: 60px; padding: 10px; text-align: center; }
.mtg-container .gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; margin-top: 20px; }
.mtg-container .gallery img { width: 100%; border-radius: 6px; border: 1px solid var(--border-color); box-shadow: 0 2px 4px rgba(0,0,0,0.05); transition: transform 0.2s; cursor: pointer; }
.mtg-container .gallery img:hover { transform: scale(1.05); }
.mtg-container progress { width: 100%; height: 14px; border-radius: 7px; overflow: hidden; -webkit-appearance: none; appearance: none; border: 1px solid var(--border-color); }
.mtg-container progress::-webkit-progress-bar { background-color: var(--bg-color); }
.mtg-container progress::-webkit-progress-value { background-color: var(--drop-zone-border); }
.mtg-container progress::-moz-progress-bar { background-color: var(--drop-zone-border); }

/* A4 Workspace */
.a4-workspace { display: flex; flex-direction: column; align-items: center; margin-top: 20px; }
.a4-preview { width: 100%; max-width: 800px; aspect-ratio: 1 / 1.414; background: white; margin: 20px 0; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); padding: 4% 3.5%; gap: 2%; }
.card-slot { position: relative; border: 2px dashed #adb5bd; border-radius: 4.75% / 3.5%; cursor: pointer; display: flex; align-items: center; justify-content: center; overflow: hidden; background-color: var(--container-bg); transition: all 0.2s ease; }
.card-slot:hover, .card-slot.hover { border-color: #007bff; background-color: rgba(0, 123, 255, 0.05); }
.card-slot::before { content: '+'; font-size: 3rem; color: #adb5bd; position: absolute; z-index: 1; transition: color 0.2s; }
.card-slot:hover::before { color: #007bff; }
.card-slot img { width: 100%; height: 100%; object-fit: cover; position: absolute; top: 0; left: 0; z-index: 2; display: none; }
.card-slot input[type="file"] { display: none; }
.card-wrapper { position: relative; display: block; }
.card-qty { position: absolute; bottom: 8px; left: 8px; background: rgba(0, 0, 0, 0.75); color: white; padding: 4px 8px; border-radius: 6px; font-weight: bold; font-size: 0.9em; pointer-events: none; backdrop-filter: blur(2px); }

/* --- МЕДИА-ЗАПРОСЫ (Адаптация) --- */
@media (max-width: 768px) {
    body { padding: 10px; }
    .container { padding: 15px; }
    .top-bar { flex-direction: column; gap: 15px; align-items: stretch; text-align: center; }
    .top-bar div { justify-content: center; }

    .drop-zone { padding: 12px 20px; min-height: 48px; border-style: solid; border-width: 1px; background: var(--btn-collapse-bg); }
    .input-col { min-width: 100%; }
    .input-col[style*="min-height: 200px;"] { min-height: 100px !important; }

    .session-header { flex-direction: column; align-items: flex-start; gap: 10px; }
    .controls { justify-content: flex-start; width: 100%; }
    .slider-row { flex-wrap: wrap; }

    .mode-sbs .view-sbs { display: none !important; }
    .mode-sbs .view-inline { display: block !important; padding: 8px 10px; white-space: pre-wrap; word-break: break-all; background: var(--diff-right-bg); }
    .diff-left, .diff-right, .inline-mode .view-inline { padding: 8px 5px; font-size: 12px; }

    .output-box, .output-box-wrap { font-size: 11px; height: 200px; }
    .result-header { margin-top: 15px; }
}

.card-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
    background: var(--bg-color, #fff);
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.card-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 15px;
    margin-top: -30px; /* Наложение на низ карты */
    z-index: 2;
    position: relative;
}
.card-controls button {
    background: none; border: none; color: white; cursor: pointer; font-weight: bold; font-size: 16px; padding: 0 5px;
}
.card-controls button:hover { color: #007bff; }
.card-controls .btn-del { color: #ff4d4d; }
.upload-controls {
    display: flex;
    gap: 5px;
    justify-content: center;
    margin-top: 5px;
}
.upload-btn {
    flex: 1;
    background: #007bff;
    color: white;
    font-size: 0.75em;
    text-align: center;
    padding: 4px;
    border-radius: 4px;
    cursor: pointer;
}
.upload-btn input { display: none; }