/* Sistema de Ferretería - Estilo Visual Basic Moderno */

:root {
    /* Colores estilo VB */
    --vb-primary: #0078D4;
    --vb-primary-dark: #005A9E;
    --vb-success: #107C10;
    --vb-danger: #E81123;
    --vb-warning: #FFB900;
    --vb-info: #00B7C3;
    --vb-purple: #8764B8;
    
    /* Grises VB */
    --vb-bg: #F3F3F3;
    --vb-border: #D1D1D1;
    --vb-text: #1F1F1F;
    --vb-text-secondary: #605E5C;
    --vb-white: #FFFFFF;
    --vb-light: #FAFAFA;
    
    /* Sombras tipo VB */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 2px 4px rgba(0,0,0,0.12);
    --shadow-lg: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-btn: 0 2px 4px rgba(0,0,0,0.2);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--vb-bg);
    color: var(--vb-text);
    line-height: 1.6;
}

/* === LOGIN PAGE === */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--vb-primary) 0%, var(--vb-info) 100%);
}

.login-container {
    background: var(--vb-white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--vb-border);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: var(--vb-primary);
    font-size: 32px;
    margin-bottom: 8px;
    font-weight: 600;
}

.login-header p {
    color: var(--vb-text-secondary);
    font-size: 14px;
}

.login-form {
    margin-top: 20px;
}

.login-footer {
    margin-top: 20px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--vb-border);
}

.login-footer small {
    color: var(--vb-text-secondary);
}

/* === FORM ELEMENTS === */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--vb-text);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--vb-border);
    border-radius: 4px;
    font-size: 14px;
    background-color: var(--vb-white);
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--vb-primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

.form-control:disabled {
    background-color: var(--vb-bg);
    cursor: not-allowed;
}

select.form-control {
    cursor: pointer;
}

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

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    box-shadow: var(--shadow-btn);
    gap: 8px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.25);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--vb-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--vb-primary-dark);
}

.btn-success {
    background-color: var(--vb-success);
    color: white;
}

.btn-success:hover {
    background-color: #0E6A0E;
}

.btn-danger {
    background-color: var(--vb-danger);
    color: white;
}

.btn-danger:hover {
    background-color: #C50F1F;
}

.btn-warning {
    background-color: var(--vb-warning);
    color: var(--vb-text);
}

.btn-warning:hover {
    background-color: #E6A700;
}

.btn-info {
    background-color: var(--vb-info);
    color: white;
}

.btn-info:hover {
    background-color: #009CA8;
}

.btn-secondary {
    background-color: var(--vb-text-secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: #4A4A4A;
}

.btn-block {
    width: 100%;
}

.btn-large {
    padding: 16px 28px;
    font-size: 16px;
    min-width: 180px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-icon {
    font-size: 20px;
}

/* === ALERTS === */
.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-error {
    background-color: #FEF0F1;
    border-color: var(--vb-danger);
    color: var(--vb-danger);
}

.alert-success {
    background-color: #DFF6DD;
    border-color: var(--vb-success);
    color: var(--vb-success);
}

.alert-warning {
    background-color: #FFF4CE;
    border-color: var(--vb-warning);
    color: #8A6D00;
}

.alert-info {
    background-color: #E1F5FE;
    border-color: var(--vb-info);
    color: #006974;
}

/* === MAIN LAYOUT === */
.main-container {
    display: flex;
    min-height: 100vh;
    padding-top: 60px;
}

.content-area {
    flex: 1;
    margin-left: 250px;
    padding: 30px;
}

/* === HEADER === */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--vb-white);
    border-bottom: 2px solid var(--vb-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--vb-primary);
    text-decoration: none;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info {
    text-align: right;
}

.user-name {
    font-weight: 600;
    color: var(--vb-text);
    font-size: 14px;
}

.user-role {
    font-size: 12px;
    color: var(--vb-text-secondary);
    text-transform: uppercase;
}

/* === SIDEBAR === */
.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    width: 250px;
    height: calc(100vh - 60px);
    background: var(--vb-white);
    border-right: 1px solid var(--vb-border);
    overflow-y: auto;
    box-shadow: var(--shadow-md);
}

.sidebar-nav {
    list-style: none;
    padding: 10px 0;
}

.nav-item {
    margin: 2px 10px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--vb-text);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--vb-bg);
    color: var(--vb-primary);
}

.nav-link.active {
    background-color: var(--vb-primary);
    color: white;
}

.nav-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

/* === PAGE HEADER === */
.page-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--vb-border);
}

.page-header h1 {
    color: var(--vb-primary);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 5px;
}

.page-header p {
    color: var(--vb-text-secondary);
    font-size: 14px;
}

/* === DASHBOARD === */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--vb-white);
    border-radius: 8px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid var(--vb-border);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 48px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: rgba(255,255,255,0.9);
}

.card-blue .stat-icon {
    background-color: rgba(0, 120, 212, 0.1);
}

.card-red .stat-icon {
    background-color: rgba(232, 17, 35, 0.1);
}

.card-green .stat-icon {
    background-color: rgba(16, 124, 16, 0.1);
}

.card-purple .stat-icon {
    background-color: rgba(135, 100, 184, 0.1);
}

.stat-info h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--vb-text);
    margin-bottom: 4px;
}

.stat-info p {
    font-size: 14px;
    color: var(--vb-text-secondary);
}

.dashboard-actions {
    background: var(--vb-white);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 30px;
    border: 1px solid var(--vb-border);
    box-shadow: var(--shadow-md);
}

.dashboard-actions h2 {
    color: var(--vb-text);
    font-size: 20px;
    margin-bottom: 20px;
    font-weight: 600;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.alert-section {
    background: var(--vb-white);
    border-radius: 8px;
    padding: 24px;
    border: 1px solid var(--vb-border);
    box-shadow: var(--shadow-md);
}

.alert-section h2 {
    color: var(--vb-text);
    font-size: 20px;
    margin-bottom: 20px;
    font-weight: 600;
}

/* === TABLES === */
.table-container {
    overflow-x: auto;
    background: var(--vb-white);
    border-radius: 4px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background-color: var(--vb-primary);
    color: white;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--vb-border);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--vb-border);
}

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

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

.text-center {
    text-align: center !important;
}

.text-right {
    text-align: right !important;
}

/* === BADGES === */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
}

.badge-success {
    background-color: var(--vb-success);
    color: white;
}

.badge-danger {
    background-color: var(--vb-danger);
    color: white;
}

.badge-warning {
    background-color: var(--vb-warning);
    color: var(--vb-text);
}

.badge-info {
    background-color: var(--vb-info);
    color: white;
}

.badge-secondary {
    background-color: var(--vb-text-secondary);
    color: white;
}

/* === MODAL === */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    animation: fadeIn 0.2s;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--vb-white);
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--vb-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: var(--vb-primary);
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--vb-text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.modal-close:hover {
    background-color: var(--vb-bg);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--vb-border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* === TOOLBAR === */
.toolbar {
    background: var(--vb-white);
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--vb-border);
    box-shadow: var(--shadow-sm);
    gap: 15px;
    flex-wrap: wrap;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-box {
    position: relative;
    min-width: 250px;
}

.search-box input {
    padding-left: 36px;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--vb-text-secondary);
}

/* === CARD === */
.card {
    background: var(--vb-white);
    border-radius: 8px;
    border: 1px solid var(--vb-border);
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--vb-border);
    font-weight: 600;
    color: var(--vb-text);
    font-size: 16px;
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--vb-border);
    background-color: var(--vb-light);
}

/* === GRID === */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .content-area {
        margin-left: 0;
        padding: 15px;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .action-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}