/* Login Screen */
#login-screen {
    min-height: 100vh;
    background: var(--bg-primary);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-xl);
}

.logo-container {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.logo svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 10px 20px rgba(139, 92, 246, 0.3));
}

.logo-container h1 {
    font-size: 1.75rem;
    margin-bottom: 8px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.error-message {
    color: var(--error);
    font-size: 0.9rem;
    display: none;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.error-message.show {
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
}

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

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

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

.btn-danger {
    background: var(--error);
    color: white;
    border: none;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-text {
    background: transparent;
    color: var(--accent-primary);
    padding: 8px 16px;
}

.btn-text:hover {
    background: rgba(139, 92, 246, 0.1);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-block {
    width: 100%;
}

/* Dashboard Layout */
#dashboard-screen {
    display: flex;
    min-height: 100vh;
    background: var(--bg-primary);
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-elevated);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    animation: slideIn 0.3s ease;
}

.sidebar-header {
    padding: 32px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-small {
    width: 48px;
    height: 48px;
}

.logo-small svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 8px rgba(139, 92, 246, 0.3));
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--accent-gradient);
    border-radius: 0 3px 3px 0;
    transition: var(--transition);
}

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

.nav-item.active {
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-primary);
}

.nav-item.active::before {
    height: 24px;
}

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

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
}

.sidebar-footer .btn-icon {
    flex: 1;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    padding: 40px;
    background: var(--bg-primary);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 8px;
}

/* Stats Section */
.stats-section {
    margin-bottom: 48px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.stat-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.stat-icon.cpu { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.stat-icon.memory { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.stat-icon.disk { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.stat-icon.uptime { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.stat-icon.docker { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.stat-icon.network { background: rgba(236, 72, 153, 0.15); color: #ec4899; }

.stat-content {
    margin-bottom: 16px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-detail {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.stat-progress {
    margin-top: 16px;
}

.progress-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    transition: width 0.5s ease;
    width: 0%;
}

/* Services Section */
.services-section {
    margin-bottom: 48px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    cursor: pointer;
    display: block;
    position: relative;
}

.service-card::after {
    content: '→';
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 1.5rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.service-card:hover::after {
    opacity: 1;
    transform: translateX(0);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 12px;
}

.service-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-secondary);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.service-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.service-actions .btn {
    flex: 1;
    font-size: 0.9rem;
    padding: 8px 16px;
}

/* Monitoring Cards */
.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.monitoring-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    display: block;
    position: relative;
}

.monitoring-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.monitoring-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.monitoring-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.monitoring-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.status-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-badge.online {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.status-badge.offline {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

/* Activity */
.activity-container {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-height: 600px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.activity-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.activity-icon.success { background: rgba(16, 185, 129, 0.15); }
.activity-icon.info { background: rgba(59, 130, 246, 0.15); }
.activity-icon.warning { background: rgba(251, 191, 36, 0.15); }

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.activity-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.activity-time {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Settings */
.settings-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 24px;
}

.settings-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.settings-card h3 {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.modal-container {
    position: relative;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal-header h3 {
    font-size: 1.25rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}