/* Salesforce Lightning Design System Inspired CSS */
:root {
    --color-brand: #0176d3;
    --color-brand-dark: #014486;
    --color-background: #f3f3f3;
    --color-background-alt: #ffffff;
    --color-border: #dddbda;
    --color-text: #080707;
    --color-text-weak: #706e6b;
    --color-success: #2e844a;
    --color-warning: #fe9339;
    --color-error: #c23934;
    --color-info: #0176d3;
    --spacing-xx-small: 0.25rem;
    --spacing-x-small: 0.5rem;
    --spacing-small: 0.75rem;
    --spacing-medium: 1rem;
    --spacing-large: 1.5rem;
    --spacing-x-large: 2rem;
    --border-radius-small: 0.125rem;
    --border-radius-medium: 0.25rem;
    --shadow-default: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-elevated: 0 2px 8px rgba(0, 0, 0, 0.16);
}

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

body {
    font-family: 'Salesforce Sans', Arial, sans-serif;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-background);
}

/* Global Header */
.slds-global-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3rem;
    background-color: var(--color-background-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--spacing-medium);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-default);
}

.slds-global-header__item {
    display: flex;
    align-items: center;
}

.slds-global-header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-small);
    font-weight: 600;
    color: var(--color-brand);
}

.slds-global-header__logo i {
    font-size: 1.5rem;
}

.slds-header-title {
    font-size: 1rem;
    font-weight: 600;
}

.slds-global-header__item_search {
    flex: 1;
    max-width: 600px;
    margin: 0 var(--spacing-large);
}

.slds-global-actions {
    display: flex;
    gap: var(--spacing-small);
    align-items: center;
}

.slds-global-actions__item {
    display: flex;
    align-items: center;
}

/* Container */
.slds-container {
    display: flex;
    height: calc(100vh - 3rem);
}

/* Navigation */
.slds-nav-vertical {
    width: 240px;
    background-color: var(--color-background-alt);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--spacing-medium);
}

.slds-nav-vertical__section {
    margin-bottom: var(--spacing-large);
}

.slds-nav-vertical__title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-weak);
    margin-bottom: var(--spacing-small);
    padding: 0 var(--spacing-small);
}

.slds-nav-vertical ul {
    list-style: none;
}

.slds-nav-vertical__item {
    margin-bottom: 2px;
}

.slds-nav-vertical__action {
    display: flex;
    align-items: center;
    gap: var(--spacing-small);
    padding: var(--spacing-small) var(--spacing-medium);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--border-radius-medium);
    transition: all 0.15s;
}

.slds-nav-vertical__action:hover {
    background-color: var(--color-background);
    color: var(--color-brand);
}

.slds-nav-vertical__item.slds-is-active .slds-nav-vertical__action {
    background-color: var(--color-brand);
    color: white;
    font-weight: 600;
}

.slds-nav-vertical__action i {
    width: 1.25rem;
    text-align: center;
}

/* Main Content */
.slds-main-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-large);
}

/* Page Header */
.slds-page-header {
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-medium);
    padding: var(--spacing-large);
    margin-bottom: var(--spacing-large);
    box-shadow: var(--shadow-default);
}

.slds-page-header__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slds-page-header__title {
    display: flex;
    align-items: center;
    gap: var(--spacing-medium);
}

.slds-page-header__title h1 {
    font-size: 1.5rem;
    font-weight: 300;
}

.slds-page-header__icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-brand);
    color: white;
    border-radius: var(--border-radius-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.slds-page-header__actions {
    display: flex;
    gap: var(--spacing-small);
}

/* Buttons */
.slds-button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    background-color: white;
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-x-small);
}

.slds-button:hover {
    background-color: var(--color-background);
    box-shadow: var(--shadow-default);
}

.slds-button_brand {
    background-color: var(--color-brand);
    color: white;
    border-color: var(--color-brand);
}

.slds-button_brand:hover {
    background-color: var(--color-brand-dark);
}

.slds-button_icon {
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slds-button_destructive {
    background-color: var(--color-error);
    color: white;
    border-color: var(--color-error);
}

/* Cards */
.slds-card {
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-medium);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-default);
    margin-bottom: var(--spacing-medium);
}

.slds-card__header {
    padding: var(--spacing-medium) var(--spacing-large);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slds-card__header-title {
    font-size: 1rem;
    font-weight: 600;
}

.slds-card__body {
    padding: var(--spacing-large);
}

.slds-card__footer {
    padding: var(--spacing-medium) var(--spacing-large);
    border-top: 1px solid var(--color-border);
}

/* Grid */
.slds-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-medium);
}

.slds-col {
    flex: 1;
    min-width: 0;
}

.slds-col_padded {
    padding: var(--spacing-small);
}

.slds-size_1-of-2 {
    flex: 0 0 calc(50% - var(--spacing-medium) / 2);
}

.slds-size_1-of-3 {
    flex: 0 0 calc(33.333% - var(--spacing-medium) * 2 / 3);
}

.slds-size_1-of-4 {
    flex: 0 0 calc(25% - var(--spacing-medium) * 3 / 4);
}

/* Form Elements */
.slds-form-element {
    margin-bottom: var(--spacing-medium);
}

.slds-form-element__label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xx-small);
    color: var(--color-text);
}

.slds-form-element__control {
    position: relative;
}

.slds-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    background-color: white;
    font-size: 0.875rem;
    transition: all 0.15s;
}

.slds-input:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px rgba(1, 118, 211, 0.1);
}

.slds-input-has-icon_left .slds-input {
    padding-left: 2.5rem;
}

.slds-input__icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-weak);
}

.slds-select {
    width: 100%;
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    background-color: white;
    font-size: 0.875rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23514F4D' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
}

.slds-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    background-color: white;
    font-size: 0.875rem;
    font-family: inherit;
    resize: vertical;
    min-height: 5rem;
}

/* Table */
.slds-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.slds-table thead {
    background-color: var(--color-background);
}

.slds-table th {
    padding: var(--spacing-small) var(--spacing-medium);
    text-align: left;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-text-weak);
    border-bottom: 2px solid var(--color-border);
}

.slds-table td {
    padding: var(--spacing-small) var(--spacing-medium);
    border-bottom: 1px solid var(--color-border);
}

.slds-table tbody tr:hover {
    background-color: var(--color-background);
}

.slds-table__action-link {
    color: var(--color-brand);
    text-decoration: none;
    cursor: pointer;
}

.slds-table__action-link:hover {
    text-decoration: underline;
}

/* Badge */
.slds-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.slds-badge_success {
    background-color: #d4edda;
    color: #155724;
}

.slds-badge_warning {
    background-color: #fff3cd;
    color: #856404;
}

.slds-badge_error {
    background-color: #f8d7da;
    color: #721c24;
}

.slds-badge_info {
    background-color: #d1ecf1;
    color: #0c5460;
}

.slds-badge_light {
    background-color: #f0f0f0;
    color: #333;
}

/* Avatar */
.slds-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: var(--color-brand);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Modal */
.slds-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.slds-modal.slds-fade-in-open {
    display: flex;
}

.slds-modal__container {
    background-color: white;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-elevated);
    max-width: 50rem;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.slds-modal__header {
    padding: var(--spacing-large);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slds-modal__title {
    font-size: 1.25rem;
    font-weight: 300;
}

.slds-modal__close {
    width: 2rem;
    height: 2rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-text-weak);
}

.slds-modal__content {
    padding: var(--spacing-large);
    overflow-y: auto;
}

.slds-modal__footer {
    padding: var(--spacing-large);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-small);
}

/* Utilities */
.slds-m-top_small { margin-top: var(--spacing-small); }
.slds-m-top_medium { margin-top: var(--spacing-medium); }
.slds-m-top_large { margin-top: var(--spacing-large); }
.slds-m-bottom_small { margin-bottom: var(--spacing-small); }
.slds-m-bottom_medium { margin-bottom: var(--spacing-medium); }
.slds-m-bottom_large { margin-bottom: var(--spacing-large); }
.slds-p-around_small { padding: var(--spacing-small); }
.slds-p-around_medium { padding: var(--spacing-medium); }
.slds-p-around_large { padding: var(--spacing-large); }

.slds-text-align_center { text-align: center; }
.slds-text-align_right { text-align: right; }

.slds-hide { display: none; }
.slds-show { display: block; }

/* Loading Spinner */
.slds-spinner-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.slds-spinner-container.slds-show {
    display: flex;
}

.slds-spinner {
    width: 2rem;
    height: 2rem;
    border: 0.25rem solid var(--color-border);
    border-top-color: var(--color-brand);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toolbar */
.slds-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-medium);
    background-color: white;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-medium);
}

.slds-toolbar__left,
.slds-toolbar__right {
    display: flex;
    gap: var(--spacing-small);
    align-items: center;
}