/* ========================================
   PANEL ADMINISTRATIVO - ULTRA PROFESIONAL
   100% Optimizado para Móvil - Mobile First
   ======================================== */

/* Variables CSS - Paleta Profesional */
:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #e94560;
    --accent-light: #ff6b6b;
    --accent-dark: #c73e54;
    
    --bg-light: #f8f9fa;
    --bg-cream: #faf8f5;
    --card-bg: #ffffff;
    
    --text-dark: #1a1a2e;
    --text-medium: #4a4a6a;
    --text-light: #8a8a9a;
    --text-white: #ffffff;
    
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    --shadow-soft: 0 4px 15px rgba(26, 26, 46, 0.06);
    --shadow-medium: 0 8px 25px rgba(26, 26, 46, 0.1);
    
    --border-radius: 14px;
    --border-radius-lg: 20px;
    --border-light: 1px solid rgba(26, 26, 46, 0.06);
    
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

/* Reset y Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 15px;
    -webkit-text-size-adjust: 100%;
}

@media (min-width: 375px) {
    html {
        font-size: 16px;
    }
}

body {
    font-family: var(--font-primary);
    background: var(--bg-light);
    min-height: 100vh;
    min-height: -webkit-fill-available;
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.hidden {
    display: none !important;
}

/* ========================================
   LOGIN SCREEN
   ======================================== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, #fdfbfb 0%, #f5f3f0 50%, #ebe7e2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--spacing-md);
}

.login-container {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    width: 100%;
    max-width: 340px;
    box-shadow: var(--shadow-medium);
    text-align: center;
}

@media (min-width: 375px) {
    .login-container {
        max-width: 360px;
        padding: var(--spacing-xl) var(--spacing-xl);
    }
}

.login-container.shake {
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.login-logo {
    margin-bottom: var(--spacing-xl);
}

.login-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 375px) {
    .login-icon {
        font-size: 4rem;
    }
}

.login-logo h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.15rem;
}

@media (min-width: 375px) {
    .login-logo h1 {
        font-size: 1.8rem;
        margin-bottom: 0.2rem;
    }
}

.login-logo p {
    font-size: 0.85rem;
    color: var(--text-light);
}

@media (min-width: 375px) {
    .login-logo p {
        font-size: 0.9rem;
    }
}

.login-field {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.login-field label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
}

@media (min-width: 375px) {
    .login-field label {
        font-size: 0.9rem;
        margin-bottom: 0.6rem;
    }
}

.login-field input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
    text-align: center;
}

@media (min-width: 375px) {
    .login-field input {
        padding: 1.1rem 1.2rem;
        font-size: 1.1rem;
    }
}

.login-field input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

@media (min-width: 375px) {
    .btn-login {
        padding: 1.1rem;
        font-size: 1rem;
    }
}

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

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

.login-error {
    background: #fff5f5;
    color: #c53030;
    padding: 0.8rem;
    border-radius: 10px;
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    font-weight: 600;
}

@media (min-width: 375px) {
    .login-error {
        padding: 0.9rem;
        font-size: 0.9rem;
    }
}

.back-to-menu {
    display: inline-block;
    margin-top: var(--spacing-lg);
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

@media (min-width: 375px) {
    .back-to-menu {
        font-size: 0.9rem;
    }
}

.back-to-menu:hover {
    color: var(--accent-color);
}

/* ========================================
   MOBILE HEADER
   ======================================== */
#admin-panel {
    padding-top: 60px;
    padding-bottom: 75px;
}

@media (min-width: 375px) {
    #admin-panel {
        padding-top: 65px;
        padding-bottom: 80px;
    }
}

.mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--card-bg);
    border-bottom: var(--border-light);
    z-index: 100;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 375px) {
    .mobile-header {
        height: 65px;
        padding: 0 var(--spacing-lg);
    }
}

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

.header-left .logo-icon {
    font-size: 1.6rem;
}

@media (min-width: 375px) {
    .header-left .logo-icon {
        font-size: 1.8rem;
    }
}

.header-left h1 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .header-left h1 {
        font-size: 1.3rem;
    }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

@media (min-width: 375px) {
    .header-right {
        gap: 0.4rem;
    }
}

.btn-refresh,
.btn-menu-link,
.btn-logout {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
    text-decoration: none;
    background: var(--bg-light);
    color: var(--text-medium);
}

@media (min-width: 375px) {
    .btn-refresh,
    .btn-menu-link,
    .btn-logout {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
}

.btn-refresh:hover,
.btn-menu-link:hover {
    background: #eee;
}

.btn-logout {
    background: var(--accent-color);
    color: white;
}

.btn-logout:hover {
    background: var(--accent-dark);
}

/* ========================================
   BOTTOM NAVIGATION
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background: var(--card-bg);
    border-top: var(--border-light);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 var(--spacing-xs);
}

@media (min-width: 375px) {
    .bottom-nav {
        height: 70px;
        padding: 0 var(--spacing-sm);
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    padding: var(--spacing-sm) var(--spacing-sm);
    color: var(--text-light);
    text-decoration: none;
    transition: all var(--transition-normal);
    border-radius: 10px;
    min-width: 60px;
}

@media (min-width: 375px) {
    .nav-item {
        gap: 0.2rem;
        padding: var(--spacing-sm) var(--spacing-md);
        min-width: 70px;
    }
}

.nav-icon {
    font-size: 1.2rem;
}

@media (min-width: 375px) {
    .nav-icon {
        font-size: 1.3rem;
    }
}

.nav-text {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

@media (min-width: 375px) {
    .nav-text {
        font-size: 0.65rem;
    }
}

.nav-item.active {
    color: var(--accent-color);
    background: rgba(233, 69, 96, 0.08);
}

.nav-item:active {
    transform: scale(0.95);
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    padding: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

@media (min-width: 375px) {
    .main-content {
        padding: var(--spacing-lg);
    }
}

.section {
    display: none;
}

.section.active {
    display: block;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 375px) {
    .section-title {
        gap: 0.6rem;
        margin-bottom: 1.2rem;
    }
}

.section-title h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .section-title h2 {
        font-size: 1.4rem;
    }
}

.date-badge {
    font-size: 0.7rem;
    color: var(--text-light);
    background: var(--card-bg);
    padding: 0.35rem 0.7rem;
    border-radius: 20px;
    border: var(--border-light);
}

@media (min-width: 375px) {
    .date-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
}

/* ========================================
   STATS CARDS
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
    margin-bottom: var(--spacing-md);
}

@media (min-width: 375px) {
    .stats-grid {
        gap: 0.8rem;
        margin-bottom: 1.2rem;
    }
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    text-align: center;
}

@media (min-width: 375px) {
    .stat-card {
        padding: 1.2rem;
    }
}

.stat-card.accent {
    background: var(--primary-color);
}

.stat-card.accent .stat-info h3,
.stat-card.accent .stat-info p {
    color: var(--text-white);
}

.stat-card.accent .stat-info p {
    opacity: 0.7;
}

.stat-info h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 0.15rem;
}

@media (min-width: 375px) {
    .stat-info h3 {
        font-size: 1.5rem;
        margin-bottom: 0.2rem;
    }
}

.stat-info p {
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 500;
}

@media (min-width: 375px) {
    .stat-info p {
        font-size: 0.75rem;
    }
}

/* ========================================
   CHARTS
   ======================================== */
.chart-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 375px) {
    .chart-card {
        padding: 1.2rem;
        margin-bottom: 1rem;
    }
}

.chart-card h3 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .chart-card h3 {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
}

.chart-container {
    height: 160px;
    position: relative;
}

@media (min-width: 375px) {
    .chart-container {
        height: 180px;
    }
}

/* ========================================
   ORDERS LIST
   ======================================== */
.recent-orders-card,
.products-stats-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
}

@media (min-width: 375px) {
    .recent-orders-card,
    .products-stats-card {
        padding: 1.2rem;
    }
}

.recent-orders-card h3,
.products-stats-card h3 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .recent-orders-card h3,
    .products-stats-card h3 {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
}

.orders-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

@media (min-width: 375px) {
    .orders-list {
        gap: 0.6rem;
    }
}

.order-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 0.75rem;
}

@media (min-width: 375px) {
    .order-card {
        padding: 0.9rem;
    }
}

.order-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.order-info {
    display: flex;
    flex-direction: column;
}

.order-number {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--accent-color);
}

@media (min-width: 375px) {
    .order-number {
        font-size: 0.9rem;
    }
}

.order-customer {
    font-size: 0.75rem;
    color: var(--text-light);
}

@media (min-width: 375px) {
    .order-customer {
        font-size: 0.8rem;
    }
}

.order-total {
    font-weight: 800;
    font-size: 1rem;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .order-total {
        font-size: 1.1rem;
    }
}

.order-card-details {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.3rem;
    padding-top: var(--spacing-sm);
    border-top: 1px dashed #e0e0e0;
}

@media (min-width: 375px) {
    .order-card-details {
        gap: 0.4rem;
    }
}

.table-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 600;
}

@media (min-width: 375px) {
    .table-badge {
        padding: 0.25rem 0.6rem;
        font-size: 0.7rem;
    }
}

.datetime {
    font-size: 0.65rem;
    color: var(--text-light);
}

@media (min-width: 375px) {
    .datetime {
        font-size: 0.7rem;
    }
}

.order-card-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: var(--spacing-sm);
}

@media (min-width: 375px) {
    .order-card-items {
        gap: 0.3rem;
    }
}

.order-card-items span {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    background: rgba(233, 69, 96, 0.08);
    color: var(--accent-color);
    border-radius: 10px;
    font-size: 0.6rem;
    font-weight: 500;
}

@media (min-width: 375px) {
    .order-card-items span {
        padding: 0.2rem 0.5rem;
        font-size: 0.65rem;
    }
}

/* ========================================
   SEARCH SECTION - NUEVO
   ======================================== */
.search-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 375px) {
    .search-card {
        padding: var(--spacing-lg);
    }
}

.search-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
}

.search-input {
    flex: 1;
    padding: 0.9rem var(--spacing-md);
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    font-size: 0.9rem;
    font-family: var(--font-primary);
    background: var(--bg-light);
    transition: all var(--transition-normal);
}

@media (min-width: 375px) {
    .search-input {
        padding: 1rem var(--spacing-md);
        font-size: 1rem;
    }
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: white;
}

.search-input::placeholder {
    color: var(--text-light);
}

.btn-search {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    border: none;
    background: var(--accent-color);
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 375px) {
    .btn-search {
        width: 52px;
        height: 52px;
        font-size: 1.2rem;
    }
}

.btn-search:hover {
    background: var(--accent-dark);
}

.btn-search:active {
    transform: scale(0.95);
}

.search-tips {
    margin-top: var(--spacing-sm);
    text-align: center;
}

.search-tips span {
    font-size: 0.7rem;
    color: var(--text-light);
}

@media (min-width: 375px) {
    .search-tips span {
        font-size: 0.75rem;
    }
}

.quick-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.quick-filter-btn {
    flex: 1;
    min-width: 70px;
    padding: 0.6rem var(--spacing-sm);
    background: var(--card-bg);
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-primary);
}

@media (min-width: 375px) {
    .quick-filter-btn {
        padding: 0.7rem var(--spacing-md);
        font-size: 0.8rem;
    }
}

.quick-filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: transparent;
}

.quick-filter-btn:active {
    transform: scale(0.97);
}

.search-results-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border-radius: 10px;
    border: var(--border-light);
}

#search-results-count {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-medium);
}

@media (min-width: 375px) {
    #search-results-count {
        font-size: 0.85rem;
    }
}

/* ========================================
   FILTERS
   ======================================== */
.filters-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-soft);
}

@media (min-width: 375px) {
    .filters-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
}

.filter-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 375px) {
    .filter-row {
        gap: 0.6rem;
        margin-bottom: 0.6rem;
    }
}

.filter-input,
.filter-select {
    flex: 1;
    padding: 0.7rem;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 0.85rem;
    font-family: var(--font-primary);
    background: var(--bg-light);
}

@media (min-width: 375px) {
    .filter-input,
    .filter-select {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
}

.filter-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.btn-filter {
    width: 100%;
    padding: 0.8rem;
    background: var(--primary-color);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

@media (min-width: 375px) {
    .btn-filter {
        padding: 0.9rem;
        font-size: 0.9rem;
    }
}

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

/* ========================================
   REPORT TABS
   ======================================== */
.report-tabs {
    display: flex;
    gap: 0.3rem;
    margin-bottom: var(--spacing-md);
}

@media (min-width: 375px) {
    .report-tabs {
        gap: 0.4rem;
        margin-bottom: 1rem;
    }
}

.report-tab {
    flex: 1;
    padding: 0.7rem 0.4rem;
    background: var(--card-bg);
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-medium);
    transition: all var(--transition-normal);
}

@media (min-width: 375px) {
    .report-tab {
        padding: 0.8rem 0.5rem;
        font-size: 0.8rem;
    }
}

.report-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: transparent;
}

/* ========================================
   REPORT CARD
   ======================================== */
.report-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (min-width: 375px) {
    .report-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
}

.report-card h4 {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 0.6rem;
    font-weight: 600;
}

@media (min-width: 375px) {
    .report-card h4 {
        font-size: 0.9rem;
        margin-bottom: 0.8rem;
    }
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 300px;
}

@media (min-width: 375px) {
    .report-table {
        min-width: 320px;
    }
}

.report-table th,
.report-table td {
    padding: 0.5rem 0.3rem;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.7rem;
}

@media (min-width: 375px) {
    .report-table th,
    .report-table td {
        padding: 0.6rem 0.4rem;
        font-size: 0.75rem;
    }
}

.report-table th {
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-light);
}

@media (min-width: 375px) {
    .report-table th {
        font-size: 0.65rem;
    }
}

.report-table tfoot td {
    font-weight: 700;
    background: var(--bg-light);
}

.report-table .amount {
    color: var(--accent-color);
    font-weight: 700;
}

/* ========================================
   PRODUCTS STATS
   ======================================== */
.products-stats-card {
    margin-bottom: var(--spacing-md);
}

.products-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

@media (min-width: 375px) {
    .products-grid {
        gap: 0.8rem;
    }
}

.product-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: var(--spacing-md);
}

@media (min-width: 375px) {
    .product-card {
        padding: 1rem;
    }
}

.product-card h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.15rem;
}

@media (min-width: 375px) {
    .product-card h4 {
        font-size: 0.95rem;
        margin-bottom: 0.2rem;
    }
}

.product-card .category {
    font-size: 0.7rem;
    color: var(--text-light);
    margin-bottom: 0.6rem;
}

@media (min-width: 375px) {
    .product-card .category {
        font-size: 0.75rem;
        margin-bottom: 0.8rem;
    }
}

.product-card .stats-row {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.product-card .stat-item {
    text-align: center;
    flex: 1;
    padding: var(--spacing-sm);
    background: var(--card-bg);
    border-radius: 10px;
}

@media (min-width: 375px) {
    .product-card .stat-item {
        padding: 0.6rem;
    }
}

.product-card .stat-item .number {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--text-dark);
}

@media (min-width: 375px) {
    .product-card .stat-item .number {
        font-size: 1rem;
    }
}

.product-card .stat-item .label {
    font-size: 0.55rem;
    color: var(--text-light);
    font-weight: 500;
}

@media (min-width: 375px) {
    .product-card .stat-item .label {
        font-size: 0.6rem;
    }
}

/* ========================================
   EXPORT BUTTONS
   ======================================== */
.export-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

@media (min-width: 375px) {
    .export-buttons {
        gap: 0.6rem;
    }
}

.btn-export {
    flex: 1;
    padding: 0.8rem;
    background: var(--primary-color);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
}

@media (min-width: 375px) {
    .btn-export {
        padding: 0.9rem;
        font-size: 0.85rem;
    }
}

.btn-export.secondary {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 2px solid #e8e8e8;
}

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

/* ========================================
   TOAST
   ======================================== */
.toast {
    position: fixed;
    top: 75px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.3rem;
    border-radius: 25px;
    box-shadow: var(--shadow-medium);
    z-index: 2000;
    animation: toastIn 0.3s ease;
    font-size: 0.85rem;
    font-weight: 600;
    max-width: calc(100% - 30px);
    text-align: center;
}

@media (min-width: 375px) {
    .toast {
        top: 80px;
        padding: 0.9rem 1.5rem;
        font-size: 0.9rem;
    }
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ========================================
   EMPTY STATE
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--text-light);
}

.empty-state p {
    font-size: 0.85rem;
}

@media (min-width: 375px) {
    .empty-state p {
        font-size: 0.9rem;
    }
}

/* ========================================
   RESPONSIVE - TABLETS Y DESKTOP
   ======================================== */
@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .chart-container {
        height: 220px;
    }
    
    .main-content {
        max-width: 700px;
    }
    
    .quick-filters {
        flex-wrap: nowrap;
    }
}

@media (min-width: 1024px) {
    #admin-panel {
        padding-top: 75px;
        padding-bottom: 90px;
    }
    
    .mobile-header {
        height: 75px;
        padding: 0 var(--spacing-xl);
    }
    
    .bottom-nav {
        height: 80px;
    }
    
    .nav-item {
        flex-direction: row;
        gap: var(--spacing-sm);
        padding: 0.6rem 1.2rem;
    }
    
    .nav-text {
        font-size: 0.8rem;
    }
    
    .main-content {
        max-width: 900px;
        padding: var(--spacing-xl);
    }
}

/* Print Styles */
@media print {
    .mobile-header,
    .bottom-nav,
    .export-buttons,
    .filters-card,
    .report-tabs,
    .login-screen,
    .search-card,
    .quick-filters {
        display: none !important;
    }
    
    body {
        padding: 0;
        background: white;
    }
    
    #admin-panel {
        padding: 0;
    }
    
    .main-content {
        max-width: 100%;
        padding: 0;
    }
    
    .section {
        display: block !important;
    }
}

/* Safe area para iPhone X+ */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .bottom-nav {
        padding-bottom: env(safe-area-inset-bottom);
        height: calc(70px + env(safe-area-inset-bottom));
    }
    
    #admin-panel {
        padding-bottom: calc(80px + env(safe-area-inset-bottom));
    }
}