/* ========================================
   JUMAVI - Sistema de Gestión
   Mobile-first CSS with View Transitions
   Paleta: Violeta, Turquesa, Coral
   ======================================== */

/* CSS Variables */
:root {
    /* Primary Colors */
    --primary: #6B46C1;
    --primary-dark: #553C9A;
    --primary-light: #9F7AEA;
    
    /* Secondary Colors */
    --secondary: #0D9488;
    --secondary-dark: #0F766E;
    --secondary-light: #2DD4BF;
    
    /* Accent Colors */
    --accent: #F97316;
    --accent-dark: #EA580C;
    --accent-light: #FB923C;
    
    /* Neutral Colors */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --border: #E2E8F0;
    
    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    /* Layout */
    --header-height: 56px;
    --nav-height: 64px;
    --sidebar-width: 280px;
}

/* View Transitions */
@view-transition {
    navigation: auto;
}

::view-transition-old(root) {
    animation: 0.2s ease-out fade-out;
}

::view-transition-new(root) {
    animation: 0.2s ease-in fade-in;
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.menu-toggle {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-name {
    font-size: 0.875rem;
    display: none;
}

@media (min-width: 480px) {
    .user-name {
        display: inline;
    }
}

.btn-logout {
    color: white;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background-color 0.2s;
}

.btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 200;
    transition: left 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    height: var(--header-height);
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.sidebar-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-nav {
    padding: var(--spacing-md);
}

.sidebar-nav .nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all 0.2s;
}

.sidebar-nav .nav-item:hover {
    background-color: var(--bg-primary);
    color: var(--primary);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-md);
    padding-top: calc(var(--header-height) + var(--spacing-md));
    padding-bottom: calc(var(--nav-height) + var(--spacing-md) + env(safe-area-inset-bottom));
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--nav-height) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.625rem;
    font-weight: 500;
    gap: 2px;
    transition: color 0.2s;
    min-width: 60px;
}

.bottom-nav .nav-item svg {
    width: 22px;
    height: 22px;
}

.bottom-nav .nav-item:hover,
.bottom-nav .nav-item.active {
    color: var(--primary);
}

.bottom-nav .nav-item-center {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    margin-top: -20px;
    box-shadow: var(--shadow-lg);
}

.bottom-nav .nav-item-center svg {
    width: 24px;
    height: 24px;
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert-success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #6EE7B7;
}

.alert-error {
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FCA5A5;
}

.alert-warning {
    background-color: #FEF3C7;
    color: #92400E;
    border: 1px solid #FCD34D;
}

.alert-info {
    background-color: #DBEAFE;
    color: #1E40AF;
    border: 1px solid #93C5FD;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    min-height: 44px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: var(--border);
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--error), #DC2626);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    min-height: 52px;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    transition: border-color 0.2s, box-shadow 0.2s;
    min-height: 44px;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(107, 70, 193, 0.1);
}

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

.form-error {
    color: var(--error);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

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

.card-body {
    padding: var(--spacing-sm) 0;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 640px) {
    .kpi-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.kpi-icon.primary {
    background-color: rgba(107, 70, 193, 0.1);
    color: var(--primary);
}

.kpi-icon.secondary {
    background-color: rgba(13, 148, 136, 0.1);
    color: var(--secondary);
}

.kpi-icon.accent {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--accent);
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.kpi-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    white-space: nowrap;
}

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

/* Table Responsive - Cards on Mobile */
.table-responsive {
    width: 100%;
}

/* Hide table header on mobile */
.table thead {
    display: none;
}

/* Transform table rows into cards on mobile */
.table tbody {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.table tr {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    border: none;
}

.table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Center align actions on mobile */
.table td.text-right {
    justify-content: center;
}

.table td.text-right::before {
    display: none;
}

/* Show table layout on desktop */
@media (min-width: 768px) {
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table thead {
        display: table-header-group;
    }

    .table tbody {
        display: table-row-group;
        gap: 0;
    }

    .table tr {
        display: table-row;
        background: transparent;
        border: none;
        border-radius: 0;
        padding: 0;
        box-shadow: none;
    }

    .table td {
        display: table-cell;
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: 1px solid var(--border);
    }

    .table td::before {
        display: none;
    }

    .table td.text-right {
        justify-content: flex-end;
    }

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

/* Button Outline */
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

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

/* Button Warning */
.btn-warning {
    background: linear-gradient(135deg, var(--warning), #D97706);
    color: white;
}

.btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo h1 {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 700;
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* Error Page */
.error-page {
    text-align: center;
    padding: var(--spacing-xl);
}

.error-icon {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.error-title {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.error-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.error-message {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.error-details {
    list-style: none;
    text-align: left;
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.error-details li {
    color: var(--error);
    font-size: 0.875rem;
    padding: var(--spacing-xs) 0;
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: #D1FAE5;
    color: #065F46;
}

.badge-warning {
    background-color: #FEF3C7;
    color: #92400E;
}

.badge-error {
    background-color: #FEE2E2;
    color: #991B1B;
}

.badge-info {
    background-color: #DBEAFE;
    color: #1E40AF;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
}

.empty-state h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-primary { color: var(--primary); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }

/* Loading Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Page Header */
.page-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 640px) {
    .page-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .action-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .action-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    border: 1px solid var(--border);
    transition: all 0.2s;
    min-height: 120px;
}

.action-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.action-card svg {
    width: 32px;
    height: 32px;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.action-card span {
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
}

/* List Items */
.list-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-md);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}

.list-item:hover {
    border-color: var(--primary-light);
    background-color: var(--bg-primary);
}

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.list-item-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.list-item-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* KPI Alert State */
.kpi-alert {
    border-color: var(--warning);
    background-color: #FEF3C7;
}

.kpi-icon.warning {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

/* Summary Row */
.summary-row {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.summary-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.summary-value {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Alert Card */
.card-alert {
    border-color: var(--error);
    border-width: 2px;
}

.card-alert .card-header {
    border-bottom-color: rgba(239, 68, 68, 0.2);
}

.text-error {
    color: var(--error);
}

/* Alert List */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.alert-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.15);
}

.alert-item-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.alert-item-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.alert-item-stock {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Badge Error */
.badge-error {
    background-color: #FEE2E2;
    color: #991B1B;
}

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .action-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    border: 1px solid var(--border);
    transition: all 0.2s;
    min-height: 100px;
}

.action-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
    background: var(--bg-card);
}

.action-card svg {
    width: 28px;
    height: 28px;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.action-card span {
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}

/* Empty State Small */
.empty-state-sm {
    padding: var(--spacing-lg);
}

.empty-state-sm svg {
    width: 32px;
    height: 32px;
    color: var(--text-muted);
}

.empty-state-sm p {
    margin: 0;
    font-size: 0.875rem;
}

/* Utility: Margin Top Small */
.mt-sm {
    margin-top: var(--spacing-sm);
}

/* Utility: Margin Top Extra Small */
.mt-xs {
    margin-top: var(--spacing-xs);
}