/* КОД ДЛЯ styles.css */
:root {
    --primary-color: #4a69bd;
    --secondary-color: #6a89cc;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
}

header {
    background-color: var(--dark-color);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
}

nav button, .io-buttons button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

nav button:hover, .io-buttons button:hover {
    background-color: var(--primary-color);
}

nav button.active {
    background-color: var(--primary-color);
    font-weight: bold;
}

main {
    padding: 2rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

h2 {
    color: var(--primary-color);
}

/* Таблицы */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    box-shadow: 0 2px 4px var(--shadow-color);
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: #f2f2f2;
}

td .action-btn {
    background: none;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    cursor: pointer;
    margin-right: 5px;
}
td .action-btn:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* Сворачиваемые блоки */
.collapsible {
    background-color: white;
    margin-bottom: 1rem;
    border-radius: 5px;
    box-shadow: 0 2px 4px var(--shadow-color);
    overflow: hidden;
}

.collapsible-header {
    background-color: #f8f9fa;
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.collapsible-header:hover {
    background-color: #e9ecef;
}

.collapsible-header h3 {
    margin: 0;
}

.collapsible-header .arrow {
    transition: transform 0.3s ease;
}

.collapsible-header.open .arrow {
    transform: rotate(90deg);
}

.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1rem;
}

.collapsible-content-inner {
    padding: 1rem 0;
}

.collapsible-content h4 {
    margin-top: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* Модальные окна */
#modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    z-index: 101;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 {
    margin-top: 0;
}

.modal.hidden, #modal-backdrop.hidden {
    display: none;
}

.modal-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: flex-end;
}

.modal-actions button {
    padding: 0.5rem 1rem;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    margin-left: 0.5rem;
}

.modal-actions button[type="submit"] {
    background-color: var(--primary-color);
    color: white;
}

.modal-actions button.close-modal-btn {
    background-color: #ccc;
}

/* Формы */
form label {
    display: block;
    margin-top: 1rem;
    margin-bottom: 0.25rem;
    font-weight: bold;
}

form input[type="text"],
form input[type="number"],
form input[type="date"],
form input[type="password"],
form textarea,
form select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-sizing: border-box;
}

form textarea {
    min-height: 80px;
    resize: vertical;
}

/* Дашборд */
.dashboard-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

#dashboard-components, #dashboard-locations {
    background-color: white;
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.dashboard-full-width {
    grid-column: 1 / -1;
}

/* Остатки внутри товара */
.product-stock-summary {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 5px;
    flex-wrap: wrap;
}
.product-stock-summary div {
    text-align: center;
}
.product-stock-summary .stock-label {
    font-size: 0.9em;
    color: #6c757d;
}
.product-stock-summary .stock-value {
    font-size: 1.2em;
    font-weight: bold;
}

/* Стили для Модального окна входа (используются в login.html) */
#login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f8f9fa;
    z-index: 200;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background-color: white;
    padding: 2rem 3rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

#login-form label {
    display: block;
    margin-bottom: 0.5rem;
    text-align: left;
}
#login-form input {
    width: 100%;
    margin-bottom: 1rem;
}
#login-form button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.error-message {
    color: #d9534f;
    margin-top: 1rem;
    min-height: 1em;
}