/**
 * SMT ERP - Global styles (minimal)
 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--bg-color);
    background-image: var(--gradient-page);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-light);
}

img {
    max-width: 100%;
    display: block;
}

/* Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition);
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.page-content {
    flex: 1;
    width: 100%;
    max-width: none;
    padding: 1.5rem 1.25rem 2rem;
}

.page-header {
    margin-bottom: 1.75rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--text-muted);
    margin-top: 0.2rem;
    font-size: 0.9rem;
}

/* Breadcrumbs */
.breadcrumbs ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
}

.breadcrumbs li {
    display: flex;
    align-items: center;
    color: var(--text-muted);
}

.breadcrumbs li:not(:last-child)::after {
    content: '›';
    margin-left: 0.35rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.breadcrumbs li:last-child span {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1.25rem;
    padding-bottom: 0;
    border-bottom: none;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text-primary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.form-group input[readonly] {
    background: var(--bg-subtle);
    color: var(--text-secondary);
    cursor: default;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.form-hint a {
    color: var(--primary);
    font-weight: 500;
}

.input-with-btn {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.input-with-btn select,
.input-with-btn input {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.15rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--secondary);
    box-shadow: none;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-accent {
    background: var(--accent);
    color: var(--secondary);
    box-shadow: none;
}

.btn-accent:hover:not(:disabled) {
    background: var(--accent-dark);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-subtle);
    border-color: var(--border-color);
}

.btn-icon {
    padding: 0.45rem;
    min-width: 36px;
    min-height: 36px;
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin: 0 -0.25rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 0.85rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.data-table th {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: transparent;
}

.data-table tbody tr {
    transition: background var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-subtle);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.empty-state {
    text-align: center;
    padding: 3.5rem 1.5rem;
    color: var(--text-muted);
}

.empty-state p {
    font-size: 0.9rem;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 72px;
    right: 1.25rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.toast {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    font-size: 0.85rem;
    font-weight: 500;
    min-width: 260px;
    max-width: 360px;
    pointer-events: auto;
    animation: toastIn 0.25s ease;
    border: 1px solid;
}

.toast-success {
    background: #f4f8f6;
    color: #3d5c4e;
    border-color: #c5d9ce;
}

.toast-error {
    background: #faf4f5;
    color: #7a4a52;
    border-color: #e0c5ca;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Loading */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* Sidebar overlay */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Footer */
.app-footer {
    padding: 1rem 2rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-light);
    background: var(--card-bg);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
    }

    body.sidebar-collapsed .main-content {
        margin-left: 0;
    }

    .page-content {
        padding: 3.5rem 0.75rem 1.5rem;
    }
}

@media (max-width: 640px) {
    .page-content {
        padding: 3.25rem 0.5rem 1.25rem;
    }
    .page-header h1 {
        font-size: 1.25rem;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}