/* Theme Variables */
:root {
    /* Dark Theme (Default) */
    --brand-primary: #6366F1;
    --brand-secondary: #22D3EE;
    --brand-accent: #F472B6;
    --bg-dark: #0F172A;
    --bg-card: #1E293B;
    --bg-element: #334155;
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-tertiary: #94A3B8;
    --border-color: #475569;
    --shadow-color: rgba(0, 0, 0, 0.25);
    
    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    --neutral: #9CA3AF;
    
    /* Provider Colors */
    --provider-hetzner: #F43F5E;
    --provider-contabo: #0EA5E9;
    --provider-proxmox: #FBBF24;
    
    /* Animation */
    --transition-speed: 0.3s;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-full: 9999px;
}

/* Light Theme Variables */
body.light-theme {
    --brand-primary: #4F46E5;
    --brand-secondary: #0891B2;
    --brand-accent: #DB2777;
    --bg-dark: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-element: #F1F5F9;
    --text-primary: #0F172A;
    --text-secondary: #334155;
    --text-tertiary: #64748B;
    --border-color: #E2E8F0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Status Colors - Adjusted for light theme */
    --success: #059669;
    --warning: #B45309;
    --error: #B91C1C;
    --info: #2563EB;
    --neutral: #6B7280;
    
    /* Provider Colors - Adjusted for light theme */
    --provider-hetzner: #BE123C;
    --provider-contabo: #0369A1;
    --provider-proxmox: #B45309;
}

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

body {
    font-family: 'Poppins', -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

input {
    font-family: inherit;
}

/* Layout Structure */
.main-wrapper {
    margin-left: 64px;
    min-height: 100vh;
    transition: margin-left var(--transition-speed);
}

/* Collapsed Sidebar */
.collapsed-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 64px;
    background-color: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md) 0;
    z-index: 100;
    transition: width var(--transition-speed);
    box-shadow: 0 0 10px var(--shadow-color);
    overflow: hidden;
}

.collapsed-sidebar.expanded {
    width: 240px;
}

.sidebar-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.logo {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-shape {
    width: 100%;
    height: 100%;
    background-color: var(--brand-primary);
    border-radius: var(--radius-md);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.sidebar-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: color var(--transition-speed);
    opacity: 0;
}

.collapsed-sidebar.expanded .sidebar-toggle {
    opacity: 1;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
}

.sidebar-menu {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    color: var(--text-secondary);
    position: relative;
    transition: color var(--transition-speed), background-color var(--transition-speed);
    margin-bottom: var(--spacing-xs);
}

.menu-item i {
    font-size: 1.25rem;
    width: 40px;
    text-align: center;
    transition: all var(--transition-speed);
}

.menu-text {
    opacity: 0;
    transform: translateX(10px);
    transition: opacity var(--transition-speed), transform var(--transition-speed);
    white-space: nowrap;
}

.collapsed-sidebar.expanded .menu-text {
    opacity: 1;
    transform: translateX(0);
}

.menu-item:hover {
    color: var(--text-primary);
    background-color: var(--bg-element);
}

.menu-item.active {
    color: var(--brand-primary);
}

.menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--brand-primary);
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
}

.menu-item.active:hover {
    background-color: rgba(99, 102, 241, 0.1);
}

/* Tooltips for collapsed sidebar */
.menu-item[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--bg-element);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed);
    z-index: 10;
    white-space: nowrap;
    box-shadow: 0 2px 5px var(--shadow-color);
}

.collapsed-sidebar:not(.expanded) .menu-item:hover::after {
    opacity: 1;
}

.sidebar-bottom {
    width: 100%;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 20px;
    margin: var(--spacing-md) 0;
    position: relative;
}

.theme-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-element);
    transition: .4s;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xs);
}

.theme-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: var(--brand-secondary);
    transition: .4s;
    border-radius: 50%;
}

.theme-toggle input:checked + .theme-slider:before {
    transform: translateX(20px);
    background-color: var(--brand-primary);
}

.theme-slider i {
    font-size: 10px;
    color: var(--text-tertiary);
}

.theme-slider .fa-sun {
    margin-right: auto;
}

.theme-slider .fa-moon {
    margin-left: auto;
}

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    margin-right: var(--spacing-md);
    font-size: 1.25rem;
    color: var(--text-primary);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

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

.search-container {
    position: relative;
}

.search-container input {
    background-color: var(--bg-element);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    width: 220px;
    font-size: 0.875rem;
}

.search-container i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.icon-button {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    background-color: var(--bg-element);
    border-radius: var(--radius-full);
    transition: color var(--transition-speed), background-color var(--transition-speed);
}

.icon-button:hover {
    color: var(--text-primary);
    background-color: rgba(99, 102, 241, 0.1);
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-profile {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: var(--spacing-sm);
}

.profile-dropdown {
    display: flex;
    align-items: center;
    font-weight: 500;
}

.profile-dropdown i {
    margin-left: var(--spacing-xs);
    font-size: 12px;
    color: var(--text-tertiary);
}

/* Content Area */
.content-area {
    padding: var(--spacing-lg);
    max-width: 1800px;
    margin: 0 auto;
}

/* Status Cards */
.status-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 6px var(--shadow-color);
    overflow: hidden;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px var(--shadow-color);
}

.status-card {
    display: flex;
    padding: var(--spacing-lg);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-md);
    color: white;
    font-size: 1.25rem;
}

.server-icon {
    background-color: var(--brand-primary);
}

.cpu-icon {
    background-color: var(--brand-secondary);
}

.memory-icon {
    background-color: var(--brand-accent);
}

.storage-icon {
    background-color: var(--provider-proxmox);
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-xs);
}

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

.status-detail {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
}

.status-detail .running {
    color: var(--success);
}

.status-detail .stopped {
    color: var(--neutral);
}

.progress-bar {
    height: 6px;
    background-color: var(--bg-element);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--spacing-xs);
}

.progress {
    height: 100%;
    background-color: var(--brand-primary);
    border-radius: var(--radius-full);
}

/* Main Content Grid */
.main-content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

/* Server List Card */
.server-list-card {
    height: auto;
}

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

.card-title {
    font-size: 1.125rem;
    margin: 0;
}

.card-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.server-list {
    padding: var(--spacing-md);
}

.server-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    transition: background-color var(--transition-speed);
}

.server-item:hover {
    background-color: var(--bg-element);
}

.server-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: var(--spacing-md);
}

.server-status.running {
    background-color: var(--success);
}

.server-status.warning {
    background-color: var(--warning);
}

.server-status.stopped {
    background-color: var(--neutral);
}

.server-info {
    flex: 1;
}

.server-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.server-details {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.server-metrics {
    display: flex;
    gap: var(--spacing-md);
    margin-right: var(--spacing-md);
}

.metric {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.metric-value {
    font-size: 0.875rem;
    font-weight: 600;
}

.server-menu-btn {
    color: var(--text-tertiary);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-speed);
}

.server-menu-btn:hover {
    background-color: var(--bg-element);
    color: var(--text-primary);
}

/* Right Sidebar */
.right-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Quick Actions Card */
.quick-actions-card {
    padding: var(--spacing-lg);
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-element);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    transition: all var(--transition-speed);
}

.action-btn i {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.action-btn span {
    font-size: 0.75rem;
    text-align: center;
}

.action-btn:hover {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--brand-primary);
}

/* Alerts Card */
.alert-list {
    padding: var(--spacing-md);
}

.alert-item {
    display: flex;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-speed);
}

.alert-item:hover {
    filter: brightness(1.05);
}

.alert-item.critical {
    background-color: rgba(239, 68, 68, 0.1);
}

.alert-item.warning {
    background-color: rgba(245, 158, 11, 0.1);
}

.alert-item.info {
    background-color: rgba(59, 130, 246, 0.1);
}

.alert-icon {
    margin-right: var(--spacing-md);
    font-size: 1.25rem;
}

.alert-item.critical .alert-icon {
    color: var(--error);
}

.alert-item.warning .alert-icon {
    color: var(--warning);
}

.alert-item.info .alert-icon {
    color: var(--info);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-size: 0.875rem;
    margin-bottom: 2px;
}

.alert-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.alert-time {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.btn i {
    margin-right: var(--spacing-xs);
}

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

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-text {
    color: var(--brand-primary);
    background: transparent;
}

.btn-text:hover {
    background-color: rgba(99, 102, 241, 0.1);
}

/* Mobile Styles */
@media (max-width: 1200px) {
    .status-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .main-content-grid {
        grid-template-columns: 1fr;
    }
    
    .search-container input {
        width: 150px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .collapsed-sidebar {
        transform: translateX(-100%);
        width: 240px;
    }
    
    .collapsed-sidebar.mobile-visible {
        transform: translateX(0);
    }
    
    .menu-text {
        opacity: 1;
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .main-wrapper.sidebar-open {
        transform: translateX(240px);
    }
    
    .status-cards {
        grid-template-columns: 1fr;
    }
    
    .user-name {
        display: none;
    }
    
    .search-container {
        display: none;
    }
}

/* Modal Styles */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px var(--shadow-color);
    transform: translateY(20px);
    transition: transform 0.3s;
}

.modal-backdrop.active .modal {
    transform: translateY(0);
}

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

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all var(--transition-speed);
}

.close-btn:hover {
    background-color: var(--bg-element);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.form-section {
    margin-bottom: var(--spacing-lg);
}

.form-section label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-section input[type="text"],
.form-section select {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--bg-element);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-section input[type="text"]::placeholder {
    color: var(--text-tertiary);
}

.provider-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.provider-selector select {
    flex: 1;
}

.provider-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
}

.provider-icon.hetzner {
    background-color: var(--provider-hetzner);
}

.provider-icon.contabo {
    background-color: var(--provider-contabo);
}

.provider-icon.proxmox {
    background-color: var(--provider-proxmox);
}

/* Card-based selection */
.plan-cards,
.os-cards {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.plan-cards {
    grid-template-columns: repeat(3, 1fr);
}

.os-cards {
    grid-template-columns: repeat(4, 1fr);
}

.plan-card input[type="radio"],
.os-card input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.plan-card,
.os-card {
    cursor: pointer;
    position: relative;
}

.plan-card-content,
.os-card-content {
    background-color: var(--bg-element);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 2px solid var(--bg-element);
    transition: all var(--transition-speed);
}

.plan-card input[type="radio"]:checked + .plan-card-content,
.os-card input[type="radio"]:checked + .os-card-content {
    border-color: var(--brand-primary);
    background-color: rgba(99, 102, 241, 0.1);
}

.plan-card:hover .plan-card-content,
.os-card:hover .os-card-content {
    transform: translateY(-2px);
}

.plan-icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--spacing-sm);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.plan-details h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.plan-details ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.plan-details ul li {
    margin-bottom: 2px;
}

.plan-price {
    font-weight: 600;
    color: var(--brand-primary);
}

.os-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.os-icon {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--brand-primary);
}

.os-name {
    font-size: 0.75rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    gap: var(--spacing-md);
}

.btn-secondary {
    background-color: var(--bg-element);
    color: var(--text-primary);
}

.btn-secondary:hover {
    filter: brightness(1.1);
}

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

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