/* VRPadmin PHP - Hlavný CSS štýl */

/* Reset a základné nastavenia */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --secondary-color: #764ba2;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --danger-color: #f56565;
    --info-color: #4299e1;
    --dark-color: #2d3748;
    --light-color: #f7fafc;
    --gray-100: #f7fafc;
    --gray-200: #edf2f7;
    --gray-300: #e2e8f0;
    --gray-400: #cbd5e0;
    --gray-500: #a0aec0;
    --gray-600: #718096;
    --gray-700: #4a5568;
    --gray-800: #2d3748;
    --gray-900: #1a202c;
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
}

.logo svg {
    flex-shrink: 0;
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border-left: 3px solid white;
}

.nav-link svg {
    flex-shrink: 0;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* Top Bar */
.top-bar {
    height: var(--topbar-height);
    background-color: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.sidebar-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--border-radius);
    color: var(--gray-600);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

.page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.user-menu:hover {
    background-color: var(--gray-100);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

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

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--gray-800);
}

.user-role {
    font-size: 12px;
    color: var(--gray-600);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    display: none;
    overflow: hidden;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 12px 16px;
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

.user-dropdown a:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

/* Content Wrapper */
.content-wrapper {
    padding: 24px;
    flex: 1;
}

/* Dashboard Content */
.dashboard-content {
    max-width: 1400px;
    margin: 0 auto;
}

/* Welcome Banner */
.welcome-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: var(--border-radius);
    padding: 24px;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.welcome-text h1 {
    font-size: 28px;
    margin-bottom: 4px;
}

.welcome-text p {
    opacity: 0.9;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.products {
    background-color: rgba(72, 187, 120, 0.1);
    color: var(--success-color);
}

.stat-icon.categories {
    background-color: rgba(66, 153, 225, 0.1);
    color: var(--info-color);
}

.stat-icon.revenue {
    background-color: rgba(237, 137, 54, 0.1);
    color: var(--warning-color);
}

.stat-icon.invoices {
    background-color: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
}

.stat-content h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
}

.stat-content p {
    color: var(--gray-600);
    font-size: 14px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.dashboard-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.dashboard-card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-800);
}

/* Quick Links */
.quick-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background-color: var(--gray-100);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--gray-700);
    transition: var(--transition);
}

.quick-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.quick-link svg {
    opacity: 0.7;
}

.quick-link:hover svg {
    opacity: 1;
}

.quick-link span {
    font-size: 13px;
    font-weight: 500;
}

/* Stock List */
.stock-list {
    margin-bottom: 16px;
}

.stock-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
}

.stock-item:last-child {
    border-bottom: none;
}

.stock-info strong {
    display: block;
    color: var(--gray-800);
}

.stock-category {
    font-size: 12px;
    color: var(--gray-500);
}

.stock-quantity {
    text-align: right;
}

.stock-quantity .quantity {
    display: block;
    font-weight: 600;
    color: var(--danger-color);
}

.stock-quantity .min-stock {
    font-size: 12px;
    color: var(--gray-500);
}

/* Invoice List */
.invoice-list {
    margin-bottom: 16px;
}

.invoice-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
}

.invoice-item:last-child {
    border-bottom: none;
}

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

.invoice-number {
    font-weight: 600;
    color: var(--gray-800);
}

.invoice-date {
    font-size: 12px;
    color: var(--gray-500);
}

.invoice-details {
    text-align: right;
}

.invoice-amount {
    display: block;
    font-weight: 600;
    color: var(--gray-800);
}

.invoice-method {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 12px;
    background-color: var(--gray-200);
    color: var(--gray-600);
}

.invoice-method.cash {
    background-color: rgba(72, 187, 120, 0.1);
    color: var(--success-color);
}

.invoice-method.card {
    background-color: rgba(66, 153, 225, 0.1);
    color: var(--info-color);
}

.invoice-method.transfer {
    background-color: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 24px;
    color: var(--gray-500);
}

.empty-state p {
    margin-top: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--gray-100);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background-color: var(--gray-300);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .welcome-banner {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .quick-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .user-info {
        display: none;
    }
}

@media (max-width: 480px) {
    .quick-links {
        grid-template-columns: 1fr;
    }

    .content-wrapper {
        padding: 16px;
    }
}