:root {
    --color-primary: #e67e22;
    --color-primary-dark: #d35400;
    --color-primary-light: #fef5e8;
    --color-primary-bg: #f9fbfd;
    --color-header-bg: #0b2b3b;
    --color-header-text: #ffffff;
    --color-header-hover: #f0b27a;
    --color-text-primary: #1e2a3e;
    --color-text-secondary: #4a5b6e;
    --color-text-light: #7f8c8d;
    --color-bg-main: #ffffff;
    --color-bg-secondary: #f5f7fa;
    --color-border: #eef2f5;
    --color-input-border: #dce4ec;
    --color-shadow-light: rgba(0,0,0,0.05);
    --color-shadow-medium: rgba(0,0,0,0.08);
    --color-shadow-dark: rgba(0,0,0,0.12);
    --color-danger: #dc3545;
    --color-danger-dark: #c82333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Roboto', system-ui, sans-serif;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 24px;
    width: 100%;
}

/* ========== АНИМАЦИИ ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== МЕНЮ С БУРГЕРОМ ========== */
.menu {
    background: var(--color-header-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px var(--color-shadow-medium);
    flex-wrap: wrap;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
}
.logo img { height: 40px; }
.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-header-text);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}
.nav a {
    color: var(--color-header-text);
    text-decoration: none;
    font-weight: 500;
    padding: 18px 0;
    transition: 0.2s;
    border-bottom: 2px solid transparent;
}
.nav a:hover {
    border-bottom-color: var(--color-primary);
    transform: translateY(-2px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255,255,255,0.2);
    padding: 6px 16px;
    border-radius: 40px;
    color: var(--color-header-text);
}
.user-info a {
    color: var(--color-header-text);
    text-decoration: none;
}

.burger {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--color-header-text);
    cursor: pointer;
    padding: 10px;
}

@media (max-width: 768px) {
    .menu {
        padding: 0 20px;
    }
    .burger {
        display: block;
    }
    .burger:hover {
        display: block;
        background: none;
        box-shadow: none;
    }
    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: var(--color-header-bg);
        margin: 0 -20px;
        padding: 0 20px;
    }
    .nav.active {
        display: flex;
    }
    .nav a {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,255,255,0.2);
    }
    .nav a:hover {
        transform: none;
    }
    .user-info {
        display: none;
    }
}

/* ========== КАРТОЧКИ ========== */
.card {
    background: var(--color-bg-main);
    border-radius: 28px;
    box-shadow: 0 4px 12px var(--color-shadow-light);
    padding: 28px 32px;
    margin-bottom: 30px;
    transition: 0.3s;
    animation: fadeInUp 0.5s ease-out;
}
.card:hover {
    box-shadow: 0 12px 24px var(--color-shadow-medium);
    transform: translateY(-3px);
}

/* ========== ВКЛАДКИ ========== */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 8px;
    flex-wrap: wrap;
}
.tab-link {
    background: none;
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: 40px;
    font-weight: 500;
    text-decoration: none;
    transition: 0.2s;
    font-size: 0.95rem;
}
.tab-link:hover {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}
.tab-link.active {
    background: var(--color-primary);
    color: white;
}

/* ========== ТАБЛИЦЫ ========== */
.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-main);
    border-radius: 20px;
    overflow: hidden;
}
.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.table th {
    background: var(--color-header-bg);
    color: var(--color-header-text);
    font-weight: 600;
}
.table tbody tr:hover {
    background: var(--color-primary-bg);
}

/* ========== КНОПКИ ========== */
.btn, .btn-small, button, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: white;
    padding: 8px 20px;
    border-radius: 40px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: 0.2s;
}
.btn-small { padding: 4px 12px; font-size: 0.8rem; }
.btn:hover, .btn-small:hover, button:hover, input[type="submit"]:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230,126,34,0.3);
}
.btn-danger { background: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger-dark); }

/* ========== ФОРМЫ ========== */
input, select, textarea {
    width: 100%;
    padding: 10px 14px;
    margin: 8px 0;
    border: 1px solid var(--color-input-border);
    border-radius: 16px;
    transition: 0.2s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(230,126,34,0.1);
}
label {
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-top: 12px;
    display: block;
}

/* ========== СТАТИСТИКА (ДАШБОРД) ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}
.stat-card {
    background: linear-gradient(135deg, var(--color-header-bg) 0%, #1a4155 100%);
    padding: 28px 20px;
    border-radius: 32px;
    text-align: center;
    color: white;
    transition: 0.3s;
}
.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px var(--color-shadow-dark);
}
.stat-card span {
    font-size: 40px;
    font-weight: bold;
    display: block;
    margin: 12px 0;
}

/* ========== КАРТОЧКИ ЗАЯВОК (leads.php) ========== */
.leads-filter {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.filter-btn {
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    padding: 6px 16px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 500;
    transition: 0.2s;
}
.filter-btn.active, .filter-btn:hover {
    background: var(--color-primary);
    color: white;
}
.leads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 24px;
}
.lead-card {
    background: var(--color-bg-main);
    border-radius: 24px;
    box-shadow: 0 4px 12px var(--color-shadow-light);
    overflow: hidden;
    transition: 0.2s;
}
.lead-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px var(--color-shadow-medium);
}
.card-header {
    background: var(--color-primary-bg);
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}
.card-header h3 {
    margin: 0;
    color: var(--color-primary-dark);
}
.card-body {
    padding: 16px 20px;
}
.info-row {
    display: flex;
    margin-bottom: 10px;
    font-size: 0.9rem;
    gap: 12px;
}
.info-label {
    width: 110px;
    font-weight: 600;
    color: var(--color-text-secondary);
}
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-top: 10px;
}
.status-new { background: #e9ecef; color: #6c757d; }
.status-development { background: #cce5ff; color: #004085; }
.status-completed { background: #d4edda; color: #155724; }
.card-actions {
    padding: 12px 20px;
    background: var(--color-primary-bg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ========== ОПИСАНИЕ ПРОЕКТА (project.php info) ========== */
.project-info-card {
    background: var(--color-bg-main);
    border-radius: 28px;
    padding: 24px 28px;
    margin-bottom: 28px;
    box-shadow: 0 4px 12px var(--color-shadow-light);
}
.project-info-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    margin-bottom: 24px;
}
.project-info-item {
    flex: 1;
    min-width: 180px;
}
.project-info-item .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}
.project-info-item .value {
    font-size: 1rem;
    font-weight: 500;
    background: var(--color-primary-bg);
    padding: 8px 12px;
    border-radius: 16px;
    display: inline-block;
}
.description-box {
    background: var(--color-primary-bg);
    border-left: 4px solid var(--color-primary);
    border-radius: 20px;
    padding: 18px 22px;
    margin-top: 16px;
}

/* ========== КОММЕНТАРИИ ========== */
.comment {
    background: var(--color-primary-bg);
    border-left: 4px solid var(--color-primary);
    border-radius: 20px;
    padding: 16px 20px;
    margin: 16px 0;
    transition: 0.2s;
}
.comment:hover {
    transform: translateX(6px);
    background: var(--color-bg-main);
}

/* ========== ЧАТ (НОВЫЙ СТИЛЬ) ========== */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 500px;
    border: 1px solid var(--color-border);
    border-radius: 24px;
    overflow: hidden;
    background: var(--color-bg-main);
}
.chat-messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: var(--color-bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.chat-bubble {
    max-width: 75%;
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    line-height: 1.4;
    word-wrap: break-word;
}
.chat-bubble.staff {
    align-self: flex-start;
    background: var(--color-primary-bg);
    border-bottom-left-radius: 4px;
    color: var(--color-text-primary);
}
.chat-bubble.client {
    align-self: flex-end;
    background: var(--color-primary-light);
    border-bottom-right-radius: 4px;
    color: var(--color-text-primary);
}
.chat-bubble .sender {
    font-weight: bold;
    font-size: 0.7rem;
    margin-bottom: 4px;
    color: var(--color-primary-dark);
}
.chat-bubble .time {
    font-size: 0.6rem;
    color: var(--color-text-light);
    margin-left: 8px;
}
.chat-input-area {
    padding: 12px;
    background: white;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 12px;
    align-items: flex-end;
}
.chat-input-area textarea {
    flex: 1;
    margin: 0;
    resize: vertical;
    border-radius: 20px;
}
.chat-send-btn {
    background: var(--color-primary);
    border: none;
    border-radius: 40px;
    padding: 8px 20px;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}
.chat-send-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

/* ========== ФУТЕР ========== */
.footer {
    background: var(--color-header-bg);
    color: var(--color-header-text);
    text-align: center;
    padding: 24px;
    margin-top: 40px;
}

/* ========== АДАПТИВНОСТЬ ========== */
@media (max-width: 992px) {
    .main-content {
        margin: 20px auto;
        padding: 0 16px;
    }
    .card {
        padding: 20px;
    }
    .leads-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .project-info-grid {
        flex-direction: column;
        gap: 16px;
    }
    .table th, .table td {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    .btn, button, input[type="submit"] {
        padding: 6px 14px;
    }
    .chat-container {
        height: 400px;
    }
    .chat-bubble {
        max-width: 85%;
    }
}
@media (max-width: 480px) {
    .main-content {
        padding: 0 12px;
    }
    .card {
        padding: 16px;
    }
    .lead-card {
        margin: 0;
    }
    .info-label {
        width: 90px;
    }
}

@media (max-width: 768px) {
    .time-only {
        display: none;
    }
    .table-wrapper {
        position: relative;
        padding-bottom: 8px;
    }
    .table-wrapper::after {
        content: '↔️ Листайте вправо →';
        display: block;
        text-align: center;
        font-size: 0.7rem;
        color: var(--color-text-light);
        margin-top: 8px;
    }
    .table {
        font-size: 0.7rem;
        min-width: 200px;
    }
    .table th, .table td {
        padding: 8px 10px;
        white-space: nowrap;
    }

    /* Таблица ПРОЕКТОВ – скрываем ID и Тип */
    .table-projects th:nth-child(1),
    .table-projects td:nth-child(1),
    .table-projects th:nth-child(3),
    .table-projects td:nth-child(3) {
        display: none;
    }

    /* Таблица ЭТАПОВ – скрываем Прогресс и Действия */
    .table-stages th:nth-child(5),
    .table-stages td:nth-child(5),
    .table-stages th:nth-child(6),
    .table-stages td:nth-child(6) {
        display: none;
    }

    /* Таблица ДОКУМЕНТОВ – скрываем колонку "Загрузил" (3-й столбец) */
    .table-documents th:nth-child(3),
    .table-documents td:nth-child(3) {
        display: none;
    }
    .table-users th:nth-child(1),
    .table-users td:nth-child(1){
        display: none;
    }
}
/* Страницы входа и регистрации — центрирование */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--color-bg-secondary);
    padding: 20px;
}

.auth-card {
    background: var(--color-bg-main);
    padding: 40px 32px;
    border-radius: 28px;
    box-shadow: 0 8px 24px var(--color-shadow-dark);
    width: 420px;
    max-width: 90%;
    text-align: center;
}

.auth-card h2 {
    color: var(--color-primary);
    margin-bottom: 24px;
}

.auth-card input {
    width: 100%;
    padding: 12px 16px;
    margin: 8px 0;
    border: 1px solid var(--color-input-border);
    border-radius: 40px;
    font-size: 1rem;
}

.auth-card button {
    width: 100%;
    margin-top: 20px;
    justify-content: center;
}

.auth-card a {
    color: var(--color-primary);
    text-decoration: none;
}

.auth-card a:hover {
    text-decoration: underline;
}

.error, .success {
    text-align: center;
}