/* --- Глобальные переменные и сброс --- */
:root {
    --bg-color: #f8f9fa;
    --sidebar-bg: #f1f3f4;
    --content-bg: #ffffff;
    --primary-color: #1a73e8; /* Google Blue */
    --primary-hover: #1865c9;
    --text-color: #202124;
    --text-secondary: #5f6368;
    --border-color: #dadce0;
    --border-radius: 8px;
    --font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    height: 100vh;
    overflow: hidden;
}


/* --- Основной макет --- */
.app-layout {
    display: flex;
    width: 100%;
    height: 100%;
}

.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: width 0.3s, padding 0.3s;
}

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}


/* --- Боковая панель --- */
.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    margin-bottom: 24px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    text-decoration: none;
    flex-shrink: 0;
}
.sidebar-logo img {
    height: 32px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border: none;
    background-color: transparent;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background-color 0.2s, color 0.2s;
}
.nav-item svg {
    stroke: var(--text-secondary);
    transition: stroke 0.2s;
    flex-shrink: 0;
}

.nav-item:hover {
    background-color: #e8eaed;
}

.nav-item.active {
    background-color: #e8f0fe;
    color: var(--primary-color);
}
.nav-item.active svg {
    stroke: var(--primary-color);
}


/* --- Виды (Views) --- */
.view {
    display: none;
    padding: 2rem 3rem;
    animation: fadeIn 0.3s ease-in-out;
}
.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-header {
    margin-bottom: 2rem;
}
.view-header h1 {
    font-size: 1.75rem;
    font-weight: 500;
    margin: 0 0 0.5rem 0;
}
.view-header .subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

.view-body {
    max-width: 960px;
    margin: 0 auto;
    width: 100%;
}


/* --- Формы и элементы ввода --- */
#search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 1.5rem;
}
#task-input {
    flex-grow: 1;
    padding: 12px 20px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    transition: box-shadow 0.2s ease-in-out;
}
#task-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 1px 6px rgba(32,33,36,.28);
}

/* --- ИЗМЕНЕНИЕ: Общий класс для кнопок --- */
.btn-primary {
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out, transform 0.1s;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
}
.btn-primary:active {
    transform: scale(0.98);
}
.btn-primary:disabled {
    background-color: #a0c3ff;
    cursor: not-allowed;
    transform: none;
}
#search-button {
    align-self: center; /* Для выравнивания с полем ввода */
}
#create-task-btn, #generate-qr-btn {
    align-self: flex-start;
}


#new-task-form, #qr-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.form-group {
    display: flex;
    flex-direction: column;
}
.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}
.form-group input[type="text"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-family);
}
.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}
#qr-text-input {
    resize: vertical;
    min-height: 100px;
}
.form-group input[type="file"] {
    padding: 8px;
    border: 1px dashed var(--border-color);
}
.form-group input[type="file"]::file-selector-button {
    margin-right: 1rem;
    border: none;
    background: var(--primary-color);
    padding: 8px 12px;
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
    transition: background-color .2s ease-in-out;
}
.form-group input[type="file"]::file-selector-button:hover {
    background: var(--primary-hover);
}


/* --- Контейнеры сообщений и результатов --- */
#message-container, .error-container, #create-error-container {
    margin-top: 1.5rem;
    min-height: 1em;
}
.error-message {
    color: #d93025;
    font-weight: 500;
    background-color: #fce8e6;
    border: 1px solid #f9bdbb;
    padding: 12px;
    border-radius: var(--border-radius);
}
.info-message {
    color: var(--text-secondary);
    background-color: #e8f0fe;
    border: 1px solid #c8d9fb;
    padding: 12px;
    border-radius: var(--border-radius);
}
.info-message a {
    color: var(--primary-color);
    font-weight: 500;
}

#result-container {
    margin-top: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
#result-container.visible {
    opacity: 1;
    transform: translateY(0);
}
.details-section {
    padding: 1.5rem;
    background-color: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}
.details-section h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}
.result-item {
    margin-bottom: 1rem;
}
.result-item:last-child { margin-bottom: 0; }
.result-item strong {
    color: #3c4043;
    display: block;
    margin-bottom: 0.25rem;
}
#result-container pre,
.correspondence-body,
#modal-body pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    background-color: #f1f3f4;
    padding: 0.75rem;
    border-radius: 4px;
    margin: 0;
    font-size: 0.9em;
}
.correspondence-body {
    background: transparent;
    padding: 0;
}
.shop-details {
    background-color: #f1f3f4;
    padding: 0.75rem;
    border-radius: 4px;
    margin-top: 0.5rem;
}
.shop-details p {
    margin: 0 0 0.25rem 0;
    line-height: 1.4;
}
.shop-details p:last-child { margin-bottom: 0; }
.shop-details .shop-meta {
    color: var(--text-secondary);
    font-size: 0.9em;
}

/* --- QR Code Container --- */
#qr-code-container {
    margin-top: 2rem;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 280px;
    background-color: var(--content-bg);
    border-radius: var(--border-radius);
    border: 1px dashed var(--border-color);
    transition: all 0.3s ease;
}

#qr-code-container img,
#qr-code-container canvas {
    max-width: 100%;
    height: auto;
    max-height: 256px;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* --- Загрузчики --- */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}
.loader-small {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


/* --- Галерея и модальное окно изображений --- */
.hidden { display: none !important; }
.files-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 12px; }
.file-grid-item { position: relative; border-radius: var(--border-radius); overflow: hidden; aspect-ratio: 1 / 1; background-color: #f1f3f4; }
.file-grid-item img { width: 100%; height: 100%; object-fit: cover; cursor: pointer; transition: transform 0.2s ease-in-out; }
.file-grid-item img:hover { transform: scale(1.05); }
.image-modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.8); display: flex; justify-content: center; align-items: center; z-index: 2000; padding: 20px; }
.image-modal-content { max-width: 90%; max-height: 90%; object-fit: contain; transition: transform 0.2s ease-out; cursor: grab; touch-action: none; }
.image-modal-content.is-panning { cursor: grabbing; }
.image-modal-close { position: absolute; top: 20px; right: 35px; color: #f1f1f1; font-size: 40px; font-weight: bold; cursor: pointer; transition: color 0.3s; z-index: 2010; }
.image-modal-close:hover, .image-modal-close:focus { color: #bbb; }
.modal-nav { position: absolute; top: 50%; transform: translateY(-50%); background-color: rgba(0, 0, 0, 0.4); color: white; border: none; font-size: 2rem; padding: 10px 15px; border-radius: 50%; cursor: pointer; transition: background-color 0.2s; z-index: 2010; user-select: none; }
.modal-nav:hover { background-color: rgba(0, 0, 0, 0.7); }
.modal-nav.prev { left: 20px; }
.modal-nav.next { right: 20px; }
.modal-nav:disabled { opacity: 0.2; cursor: not-allowed; }


/* --- Стили: Превью при загрузке --- */
.preview-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 8px;
}
.preview-item {
    border: 1px solid var(--border-color);
}
.file-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 8px;
    text-align: center;
    color: var(--text-secondary);
}
.file-placeholder svg {
    width: 32px;
    height: 32px;
    margin-bottom: 4px;
}
.file-placeholder span {
    font-size: 0.75rem;
    word-break: break-all;
}
.remove-preview-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: rgba(217, 48, 37, 0.9);
    color: white;
    border: 2px solid white;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: transform 0.2s;
}
.remove-preview-btn:hover {
    transform: scale(1.1);
}


/* --- МОБИЛЬНАЯ АДАПТАЦИЯ --- */
@media (max-width: 768px) {
    body {
        overflow-y: auto;
        height: auto;
    }
    .app-layout {
        flex-direction: column;
        height: auto;
    }
    .sidebar {
        width: 100%;
        height: auto;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 8px 16px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .sidebar-logo {
        margin-bottom: 0;
    }
    .sidebar-logo span {
        display: none;
    }
    .sidebar-nav {
        flex-direction: row;
        gap: 0;
    }
    .nav-item {
        padding: 8px 12px;
    }
    .nav-item span {
        display: none;
    }
    .main-content {
        overflow-y: visible;
    }
    .view {
        padding: 1.5rem 1rem;
    }
    #search-form {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-primary {
        width: 100%;
    }
    #search-button {
        width: auto;
    }
}

/* --- Стили для переписки --- */
.correspondence-item {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
    margin-bottom: 12px;
}
.correspondence-item:last-child {
    margin-bottom: 0;
}
.correspondence-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-color);
}
.correspondence-header .author {
    font-weight: 500;
    color: var(--text-color);
}
.correspondence-header .date {
    font-size: 0.85em;
    color: var(--text-secondary);
}
.author-placeholder {
    color: var(--text-secondary);
    background-color: #e8eaed;
    padding: 2px 6px;
    border-radius: 4px;
    font-style: italic;
    font-weight: normal;
    animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
    0% { background-color: #e8eaed; }
    50% { background-color: #f1f3f4; }
    100% { background-color: #e8eaed; }
}

/* --- Стили для списка "Мои задачи" --- */
.my-tasks-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.my-task-item {
    background-color: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.my-task-item:hover {
    border-color: #a8a8a8;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.my-task-item h4 {
    margin: 0 0 0.5rem 0;
    font-weight: 500;
    color: var(--primary-color);
}
.my-task-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
    
    /* Ограничение по строкам для описания */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-clamp: 2; /* Стандартное свойство */
    -webkit-line-clamp: 2; /* Вендорный префикс для совместимости */
}