/* main/templates/static/styles2.css */

:root {
    --color-primary: #0066cc; /* Более классический синий */
    --color-primary-dark: #004499;
    --color-text: #1d1d1f;
    --color-text-light: #86868b;
    --color-background: #fbfbfd; /* Теплый белый Apple */
    --color-surface: #ffffff;
    --color-border: #d2d2d7;
    --color-error: #ff3b30;
    
    --radius: 12px;
    --header-height: 60px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
    
    --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
body { 
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif; 
    background: var(--color-background); 
    color: var(--color-text); 
    line-height: 1.5;
    overflow-x: hidden;
}

/* Предотвращаем скролл body когда модальное окно открыто */
body.modal-open {
    overflow: hidden !important;
    position: fixed !important;
    width: 100% !important;
    height: 100% !important;
}

/* --- Mobile Header --- */
.header-fixed {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.1); height: var(--header-height);
    display: flex; align-items: center;
}
.nav-container {
    width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px;
    display: flex; justify-content: space-between; align-items: center;
}
.logo { font-size: 22px; font-weight: 600; color: var(--color-text); text-decoration: none; display: flex; align-items: center; gap: 6px; }

.header-controls { display: flex; gap: 12px; align-items: center; }

/* Кнопки */
.btn {
    border: none; border-radius: 20px; padding: 8px 16px; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition); text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.btn-text { background: none; color: var(--color-text); }
.btn-text:hover { color: var(--color-primary); }
.btn-primary { background: var(--color-primary); color: white; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); }

/* === CHAT STYLES === */
.chat-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.chat-modal.active {
    display: flex;
}

.chat-container {
    background: white;
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    height: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden; /* Важно для правильной работы скролла внутри */
}

.chat-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-surface);
    border-radius: 16px 16px 0 0;
    flex-shrink: 0; /* Хедер не сжимается */
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.chat-online-status {
    font-size: 12px;
    color: #4CAF50;
    transition: color 0.3s;
}

.chat-close-btn {
    background: none;
    border: none;
    font-size: 32px;
    line-height: 1;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.chat-close-btn:hover {
    background: #f5f5f5;
    color: var(--color-text);
}

.chat-messages {
    flex: 1 1 auto; /* Растягивается и может сжиматься */
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: #f8f9fa;
    min-height: 0; /* Критично для работы flex + overflow */
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.chat-loading,
.chat-empty-state,
.chat-error {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-light);
}

.chat-error {
    color: var(--color-error);
}

.chat-message {
    display: flex;
    margin-bottom: 8px;
}

.chat-message.own {
    justify-content: flex-end;
}

.chat-message.other {
    justify-content: flex-start;
}

.chat-message-bubble {
    max-width: 70%;
    padding: 10px 14px;
    border-radius: 16px;
    position: relative;
}

.chat-message.own .chat-message-bubble {
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.other .chat-message-bubble {
    background: white;
    color: var(--color-text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.chat-message-text {
    font-size: 15px;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.chat-message-time {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.7;
}

.chat-message.own .chat-message-time {
    text-align: right;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: white;
    border-radius: 16px;
    width: fit-content;
    margin-bottom: 8px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-text-light);
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    30% {
        opacity: 1;
        transform: scale(1);
    }
}

.chat-input-container {
    border-top: 1px solid var(--color-border);
    padding: 12px 16px;
    background: var(--color-surface);
    border-radius: 0 0 16px 16px;
    flex-shrink: 0; /* Input не сжимается */
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

.chat-input {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 10px 16px;
    font-size: 15px;
    font-family: inherit;
    resize: none;
    max-height: 120px;
    min-height: 40px;
    line-height: 1.4;
}

.chat-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.chat-send-btn {
    background: var(--color-primary);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: white;
    transition: var(--transition);
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: var(--color-primary-dark);
}

.chat-send-btn:active {
    transform: scale(0.95);
}

/* Адаптивность для мобильных */
@media (max-width: 768px) {
    .chat-modal {
        padding: 0;
    }
    
    .chat-container {
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    
    .chat-header {
        border-radius: 0;
    }
    
    .chat-input-container {
        border-radius: 0;
    }
}

/* === SELLER CHATS STYLES === */
.chats-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chats-loading,
.chats-empty,
.chats-error {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-light);
}

.chats-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.chats-error {
    color: var(--color-error);
}

.chat-group {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    background: white;
}

.chat-group-header {
    padding: 16px 20px;
    background: #f8f9fa;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-group-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-group-count {
    font-size: 13px;
    color: var(--color-text-light);
}

.unread-badge {
    background: var(--color-primary);
    color: white;
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 600;
}

.chat-list {
    display: flex;
    flex-direction: column;
}

.chat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 1px solid var(--color-border);
}

.chat-item:last-child {
    border-bottom: none;
}

.chat-item:hover {
    background: #f8f9fa;
}

.chat-item.unread {
    background: #f0f7ff;
}

.chat-item.unread:hover {
    background: #e6f2ff;
}

.chat-item-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #e1e1e1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #999;
}

.chat-item-content {
    flex: 1;
    min-width: 0;
}

.chat-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
    gap: 8px;
}

.chat-item-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-item-time {
    font-size: 12px;
    color: var(--color-text-light);
    flex-shrink: 0;
}

.chat-item-message {
    font-size: 14px;
    color: var(--color-text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-item.unread .chat-item-message {
    color: var(--color-text);
    font-weight: 500;
}

.unread-dot {
    background: var(--color-primary);
    color: white;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .chat-group-header {
        padding: 12px 16px;
    }
    
    .chat-item {
        padding: 12px 16px;
    }
    
    .chat-item-avatar {
        width: 40px;
        height: 40px;
    }
}

/* --- Hero & Categories --- */
.hero-section { text-align: center; padding: 60px 20px 40px; background: var(--color-surface); }
.hero-title { font-size: 40px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; }
.hero-text { font-size: 18px; color: var(--color-text-light); max-width: 500px; margin: 0 auto; }

.category-scroll {
    display: flex; gap: 12px; overflow-x: auto; padding: 20px; max-width: 1200px; margin: 0 auto;
    scrollbar-width: none; /* Firefox */
}
.category-scroll::-webkit-scrollbar { display: none; }
.cat-pill {
    flex: 0 0 auto; padding: 10px 20px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 30px; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition); color: var(--color-text); display: flex; align-items: center; gap: 8px;
}
.cat-pill:hover, .cat-pill.active { border-color: var(--color-text); background: var(--color-text); color: white; }

/* --- Grid --- */
.main-container { max-width: 1200px; margin: 0 auto; padding: 40px 20px; }
.product-grid {
    display: grid; 
    grid-template-columns: repeat(4, 1fr); /* 4 колонки по умолчанию на ПК */
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    grid-auto-rows: 1fr; /* Все строки одинаковой высоты */
}

.product-grid > * {
    display: flex;
    flex-direction: column;
}

/* --- Product Page Fixes --- */
.product-page-layout {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; margin-top: 20px;
}
.gallery-container {
    position: sticky; top: 80px; height: fit-content;
    max-width: 100%;
    overflow: hidden;
}
.main-image {
    width: 100%; aspect-ratio: 4/3; background: #f5f5f7; border-radius: 24px; object-fit: contain; margin-bottom: 16px;
    max-width: 100%;
}
.thumbs { 
    display: flex; 
    gap: 10px; 
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 8px;
    scrollbar-width: thin;
    max-height: 90px;
    width: 100%;
    cursor: grab;
    user-select: none;
}
.thumbs::-webkit-scrollbar {
    height: 4px;
}
.thumbs::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 2px;
}
.thumb { 
    flex-shrink: 0;
    width: 80px; 
    height: 80px; 
    background: #f5f5f7; 
    border-radius: 12px; 
    cursor: pointer; 
    border: 2px solid transparent;

}
.thumb.active { border-color: var(--color-primary); }

.info-container { 
    max-width: 100%;
    overflow: hidden;
}
.info-container h1 { font-size: 32px; font-weight: 700; margin-bottom: 8px; line-height: 1.1; }
.price-tag { font-size: 28px; font-weight: 600; margin: 20px 0; color: var(--color-text); }
.specs-list { margin: 30px 0; border-top: 1px solid var(--color-border); }
.spec-row { display: flex; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid var(--color-border); font-size: 15px; }
.spec-label { color: var(--color-text-light); }
.spec-value { font-weight: 500; }




/* --- Auth Modal & OAuth Buttons --- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    padding: 20px;
}

.modal.active { display: flex; }

.modal-box {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 24px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 0.3s ease-out;
}

@keyframes modalSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-header { text-align: center; margin-bottom: 30px; }
.auth-header h2 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.auth-header p { color: var(--color-text-light); }

.oauth-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.oauth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--color-border);
    background: white;
    color: var(--color-text);
    text-decoration: none;
}

.oauth-btn:hover { background: #f8fafc; border-color: #cbd5e1; transform: translateY(-1px); }

.oauth-btn.google svg { width: 20px; height: 20px; }
.oauth-btn.facebook { color: #1877F2; border-color: rgba(24, 119, 242, 0.2); }
.oauth-btn.facebook:hover { background: rgba(24, 119, 242, 0.05); }
.oauth-btn.apple { background: #000; color: white; border-color: #000; }
.oauth-btn.apple:hover { background: #333; }

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
    color: var(--color-text-light);
    font-size: 13px;
}
.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--color-border);
}
.divider span { padding: 0 12px; }

.form-group { margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; color: var(--color-text); }
.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    font-size: 15px;
    transition: var(--transition);
}
.form-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1); }




/* --- Forms & Modal --- */
.modal {
    display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(5px); z-index: 2000;
    align-items: center; justify-content: center; padding: 20px;
}
.modal.active { display: flex; }
.modal-content {
    background: var(--color-surface); width: 100%; max-width: 420px; padding: 40px;
    border-radius: 24px; box-shadow: var(--shadow-md); animation: scaleIn 0.2s ease;
}
@keyframes scaleIn { from { transform: scale(0.95); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.form-group { margin-bottom: 16px; }
.label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--color-text-light); }
.input {
    width: 100%; padding: 12px 16px; border: 1px solid var(--color-border); border-radius: 12px; font-size: 16px; transition: var(--transition);
}
.input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(0,102,204,0.1); }

/* Чекбоксы комплектации */
.checkbox-group { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.check-item {
    display: flex; align-items: center; gap: 8px; background: var(--color-background); padding: 8px 16px; border-radius: 8px; border: 1px solid transparent; cursor: pointer; font-size: 14px;
}
.check-item:has(input:checked) { background: rgba(0,102,204,0.1); color: var(--color-primary); border-color: var(--color-primary); }

/* --- Tablet Adaptation --- */
@media (min-width: 769px) and (max-width: 1023px) {
    .product-grid { 
        grid-template-columns: repeat(3, 1fr) !important; /* 3 колонки на планшетах */
        gap: 18px; 
    }
}

/* --- Mobile Adaptation (телефоны) --- */
@media (max-width: 768px) {
    .hero-title { font-size: 32px; }
    .product-page-layout { grid-template-columns: 1fr; gap: 30px; }
    .gallery-container { position: static; }
    .header-controls .btn-text { display: none; } /* Скрыть текст кнопок на мобиле */
    .post-ad-layout { padding: 20px; margin: 10px; }
    .specs-grid { grid-template-columns: 1fr; }
}

/* 2 колонки для телефонов (включая iPhone 12, XR и подобные) */
@media (min-width: 376px) and (max-width: 768px) {
    .product-grid { 
        grid-template-columns: repeat(2, 1fr) !important; /* 2 колонки */
        gap: 12px; 
    }
}

/* Очень маленькие экраны (iPhone SE и меньше) - 1 колонка */
@media (max-width: 375px) {
    .product-grid { 
        grid-template-columns: 1fr !important;
        gap: 12px;
    }
}

/* === SELLER CHATS MODAL === */
.seller-chats-float-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: var(--transition);
}

.seller-chats-float-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.5);
}

.seller-chats-float-btn svg {
    width: 28px;
    height: 28px;
}

.unread-badge-float {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--color-error);
    color: white;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 11px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.seller-chats-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.seller-chats-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

.seller-chats-container {
    display: flex;
    width: 95%;
    max-width: 1400px;
    height: 90vh;
    max-height: 800px;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ????? ?????? - ?????? ????? */
.seller-chats-sidebar {
    width: 400px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--color-border);
    background: #f8f9fa;
}

.seller-chats-header {
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
}

.seller-chats-header h2 {
    font-size: 24px;
    font-weight: 600;
}

.seller-chats-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.chat-group {
    margin-bottom: 10px;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.chat-group-header {
    padding: 12px 16px;
    background: #f8f9fa;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.chat-group-header:hover {
    background: #e9ecef;
}

.chat-group-toggle {
    display: flex;
    align-items: center;
    transition: transform 0.3s;
}

.chat-group.collapsed .chat-group-toggle {
    transform: rotate(-90deg);
}

.chat-group.collapsed .chat-list {
    display: none;
}

.chat-group-title {
    flex: 1;
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-group-count {
    font-size: 13px;
    color: var(--color-text-light);
}

.chat-list {
    display: flex;
    flex-direction: column;
}

.chat-item {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid #f0f0f0;
}

.chat-item:last-child {
    border-bottom: none;
}

.chat-item:hover {
    background: #f8f9fa;
}

.chat-item.unread {
    background: #e3f2fd;
}

.chat-item.active {
    background: #bbdefb;
}

.chat-item-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chat-item-content {
    flex: 1;
    min-width: 0;
}

.chat-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
}

.chat-item-name {
    font-weight: 600;
    font-size: 14px;
}

.chat-item-time {
    font-size: 12px;
    color: var(--color-text-light);
}

.chat-item-message {
    font-size: 13px;
    color: var(--color-text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    gap: 6px;
    align-items: center;
}

.unread-dot {
    background: var(--color-error);
    color: white;
    border-radius: 10px;
    padding: 0 6px;
    font-size: 11px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

/* ?????? ?????? - ???????? ??? */
.seller-chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.seller-chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    gap: 16px;
}

.seller-chat-empty p {
    font-size: 16px;
}

.seller-chat-active {
    flex: 1;
    display: none;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.seller-chat-active-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    flex-shrink: 0;
}

.chat-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.chat-info span {
    font-size: 13px;
    color: var(--color-text-light);
}

.chat-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: #f0f0f0;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: #e0e0e0;
}

.seller-chat-messages {
    flex: 1 1 auto;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    background: #f8f9fa;
    min-height: 0;
}

.chat-empty-messages,
.chat-loading,
.chat-error {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-light);
}

.seller-chat-input {
    padding: 16px 20px;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 12px;
    background: white;
    flex-shrink: 0;
}

.seller-chat-input textarea {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 10px 16px;
    font-family: inherit;
    font-size: 14px;
    resize: none;
    max-height: 120px;
    outline: none;
    transition: var(--transition);
}

.seller-chat-input textarea:focus {
    border-color: var(--color-primary);
}

.btn-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-send:hover {
    background: var(--color-primary-dark);
    transform: scale(1.1);
}

/* ????????? */
.message {
    display: flex;
    margin-bottom: 12px;
    animation: messageSlideIn 0.3s ease-out;
}

.message.own {
    justify-content: flex-end;
}

.message.other {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 70%;
    padding: 10px 14px;
    border-radius: 16px;
    word-wrap: break-word;
}

.message.own .message-bubble {
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.other .message-bubble {
    background: white;
    color: var(--color-text);
    border-bottom-left-radius: 4px;
}

.message-text {
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 4px;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
}

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

/* ???????????? */
@media (max-width: 900px) {
    .seller-chats-container {
        width: 100%;
        height: 100vh;
        max-height: none;
        border-radius: 0;
    }
    
    .seller-chats-sidebar {
        width: 100%;
        max-width: 400px;
    }
    
    .seller-chat-panel {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: white;
        transform: translateX(100%);
        transition: transform 0.3s;
    }
    
    .seller-chat-panel.show {
        transform: translateX(0);
    }
}

/* === CONFIRM MODAL === */
.confirm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20000;
    animation: fadeIn 0.2s ease-out;
}

.confirm-modal {
    background: white;
    border-radius: 16px;
    padding: 24px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease-out;
}

.confirm-modal h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
}

.confirm-modal p {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 20px;
    line-height: 1.5;
}

.confirm-modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.confirm-modal-buttons button {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-confirm {
    background: var(--color-error);
    color: white;
}

.btn-confirm:hover {
    background: #d32f2f;
}

.btn-cancel {
    background: #f0f0f0;
    color: var(--color-text);
}

.btn-cancel:hover {
    background: #e0e0e0;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Mobile-only elements === */
.mobile-only {
    display: none !important;
}

/* === Mobile Adaptations for Chat === */
@media (max-width: 768px) {
    .mobile-only {
        display: inline-flex !important;
    }
    
    /* Chat modal покупателя */
    .chat-modal.active {
        display: flex !important;
    }
    
    .chat-container {
        width: 100vw !important;
        height: 100vh !important;
        height: 100dvh !important; /* Dynamic viewport height для мобильных */
        max-width: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        margin: 0 !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    .chat-header {
        padding: 12px 16px !important;
        border-radius: 0 !important;
        flex-shrink: 0 !important;
    }
    
    .chat-messages {
        padding: 16px 12px !important;
        flex: 1 1 auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        min-height: 0 !important;
        -webkit-overflow-scrolling: touch !important;
    }
    
    .chat-input-area {
        padding: 12px !important;
        border-radius: 0 !important;
        flex-shrink: 0 !important;
        position: relative !important;
        bottom: 0 !important;
    }
    
    .chat-message {
        max-width: 85% !important;
        font-size: 15px !important;
    }
    
    /* Seller chats modal */
    .seller-chats-modal.active {
        display: flex !important;
    }
    
    .seller-chats-container {
        width: 100vw !important;
        height: 100vh !important;
        height: 100dvh !important; /* Dynamic viewport height */
        max-width: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        flex-direction: column !important;
        display: flex !important;
    }
    
    .seller-chats-sidebar {
        width: 100% !important;
        max-width: 100% !important;
        border-right: none !important;
        border-bottom: 1px solid var(--color-border);
        flex-shrink: 0 !important;
    }
    
    .seller-chat-panel {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    /* Скрываем панель чата когда чат не выбран */
    .seller-chat-panel:not(.show) {
        display: none !important;
    }
    
    /* Показываем только панель когда чат выбран */
    .seller-chat-panel.show {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        z-index: 10001 !important;
        transform: translateX(0) !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    /* Seller chat active внутри панели */
    .seller-chat-active {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important;
    }
    
    .seller-chat-active-header {
        flex-shrink: 0 !important;
    }
    
    .seller-chat-messages {
        flex: 1 1 auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        min-height: 0 !important;
        -webkit-overflow-scrolling: touch !important;
    }
    
    .seller-chat-input {
        flex-shrink: 0 !important;
        position: relative !important;
    }
    
    /* Улучшаем кнопки */
    .chat-item {
        padding: 16px !important;
        min-height: 72px;
    }
    
    .chat-group-header {
        padding: 14px 16px !important;
        min-height: 56px;
    }
    
    /* Улучшаем touch-таргеты */
    button, .btn, .chat-item, .chat-group-header {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    /* Float button для чатов */
    .seller-chats-float-btn {
        bottom: 20px !important;
        right: 20px !important;
        width: 56px !important;
        height: 56px !important;
        font-size: 24px;
    }
    
    .unread-badge-float {
        top: -4px !important;
        right: -4px !important;
        min-width: 22px !important;
        height: 22px !important;
        font-size: 12px !important;
    }
}

@media (max-width: 480px) {
    /* Еще меньшие экраны */
    .chat-header h3 {
        font-size: 16px !important;
    }
    
    .chat-header .product-name {
        font-size: 13px !important;
    }
    
    .chat-message {
        font-size: 14px !important;
        padding: 10px 14px !important;
    }
    
    .seller-chats-header h2 {
        font-size: 18px !important;
    }
    
    .chat-item-name {
        font-size: 15px !important;
    }
    
    .chat-item-message {
        font-size: 13px !important;
    }
}