* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-links a:hover {
    background-color: rgba(255,255,255,0.1);
}

.page {
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-top: 20px;
}

.active {
    display: block;
}

.search-form {
    text-align: center;
    margin: 50px 0;
}

.search-form h1 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 1.8rem;
}

.search-input {
    padding: 12px 20px;
    width: 300px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.search-input:focus {
    outline: none;
    border-color: #3498db;
}

.search-btn {
    padding: 12px 24px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-left: 10px;
    transition: background-color 0.3s;
}

.search-btn:hover {
    background-color: #2980b9;
}

.order-info {
    margin-top: 20px;
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    flex-wrap: wrap;
    gap: 15px;
}

.order-number {
    font-size: 1.5rem;
    color: #2c3e50;
    flex: 1;
    min-width: 250px;
}

.back-btn {
    padding: 10px 20px;
    background-color: #95a5a6;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 14px;
}

.back-btn:hover {
    background-color: #7f8c8d;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

tr:hover {
    background-color: #f8f9fa;
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-issued {
    background-color: #3498db;
    color: white;
}

.status-prepared {
    background-color: #f39c12;
    color: white;
}

.status-sent {
    background-color: #2ecc71;
    color: white;
}

.status-delivered {
    background-color: #27ae60;
    color: white;
}

.status-draft {
    background-color: #95a5a6;
    color: white;
}

.err {
    padding-top: 20px;
    color: #e74c3c;
    text-align: center;
    font-weight: 500;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Контейнер для штрих-кода */
.barcode-container {
    margin: 25px 0;
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.barcode-container p {
    margin-bottom: 15px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 1.1rem;
}

#barcode {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* Адаптивность для планшетов */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    nav {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .nav-links {
        display: flex;
        gap: 10px;
    }

    .nav-links a {
        margin-left: 0;
        margin: 0 5px;
    }

    .search-form {
        margin: 30px 0;
    }

    .search-form h1 {
        font-size: 1.5rem;
        margin-bottom: 25px;
    }

    .search-input {
        width: 100%;
        max-width: 400px;
        margin-bottom: 12px;
        margin-left: 0;
        margin-right: 0;
    }

    .search-btn {
        width: 100%;
        max-width: 400px;
        margin-left: 0;
        margin-top: 5px;
    }

    .page {
        padding: 15px;
        margin-top: 15px;
    }

    .order-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .order-number {
        font-size: 1.3rem;
        min-width: auto;
        width: 100%;
    }

    .back-btn {
        align-self: stretch;
        text-align: center;
        padding: 12px;
    }

    /* Адаптивная таблица с горизонтальным скроллом */
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }

    th, td {
        padding: 10px 12px;
        min-width: 120px;
    }

    .barcode-container {
        margin: 20px 0;
        padding: 15px;
    }

    .barcode-container p {
        font-size: 1rem;
    }
}

/* Адаптивность для мобильных телефонов */
@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .logo {
        font-size: 1.3rem;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }

    .nav-links a {
        margin: 2px 0;
        padding: 8px 12px;
        text-align: center;
        background-color: rgba(255,255,255,0.1);
    }

    .search-form {
        margin: 20px 0;
    }

    .search-form h1 {
        font-size: 1.3rem;
        margin-bottom: 20px;
        line-height: 1.4;
    }

    .page {
        padding: 12px;
        margin-top: 12px;
    }

    .order-number {
        font-size: 1.2rem;
        word-break: break-word;
    }

    th, td {
        padding: 8px 10px;
        font-size: 14px;
        min-width: 100px;
    }

    /* Альтернативный вариант таблицы для очень маленьких экранов */
    @media (max-width: 360px) {
        table {
            display: flex;
            flex-direction: column;
        }

        thead {
            display: none;
        }

        tbody, tr {
            display: flex;
            flex-direction: column;
            border: 1px solid #ddd;
            border-radius: 6px;
            margin-bottom: 10px;
            padding: 10px;
        }

        td {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 5px;
            border-bottom: 1px solid #eee;
            white-space: normal;
            min-width: auto;
        }

        td::before {
            content: attr(data-label);
            font-weight: 600;
            margin-right: 10px;
            color: #2c3e50;
            flex: 1;
        }

        td:last-child {
            border-bottom: none;
        }

        .status-badge {
            flex-shrink: 0;
        }
    }

    .barcode-container {
        margin: 15px 0;
        padding: 12px;
    }

    .barcode-container p {
        font-size: 0.95rem;
        margin-bottom: 12px;
    }

    footer {
        padding: 15px;
        margin-top: 30px;
        font-size: 0.85rem;
    }
}

/* Улучшение для очень маленьких экранов */
@media (max-width: 320px) {
    .search-form h1 {
        font-size: 1.2rem;
    }

    .order-number {
        font-size: 1.1rem;
    }

    th, td {
        padding: 6px 8px;
        font-size: 13px;
    }

    .status-badge {
        font-size: 0.8rem;
        padding: 3px 6px;
    }
}

/* Предотвращение масштабирования полей ввода в iOS */
@media (max-width: 768px) {
    input, select, textarea {
        font-size: 16px;
    }
}

/* Плавные переходы для интерактивных элементов */
.search-btn, .back-btn, .nav-links a {
    transition: all 0.3s ease;
}

/* Улучшение читаемости на мобильных */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }
}