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

:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #4cc9f0;
    --warning-color: #f72585;
    --danger-color: #e63946;
    --dark-color: #2b2d42;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
    color: var(--light-color);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
}

/* Header Styles */
.app-header {
    background: rgba(43, 45, 66, 0.9);
    padding: 1rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo i {
    font-size: 2rem;
    color: var(--success-color);
}

.logo h1 {
    font-weight: 700;
    font-size: 1.8rem;
    background: linear-gradient(90deg, #4cc9f0, #4361ee);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--gray-color);
}

.status-dot.ready {
    background-color: var(--success-color);
}

.status-dot.pinging {
    background-color: var(--primary-color);
    animation: pulse 1.5s infinite;
}

.status-dot.error {
    background-color: var(--danger-color);
}

.app-version {
    font-size: 0.85rem;
    color: var(--gray-color);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Card Styles */
.input-card, .stats-card, .visualization-card, .history-card {
    background: rgba(43, 45, 66, 0.8);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.input-card h2, .stats-card h2, .visualization-card h2, .history-card h2 {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--light-color);
    font-size: 1.4rem;
}

/* Input Section */
.input-group {
    margin-bottom: 1.2rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--light-color);
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.3);
}

.input-with-history {
    position: relative;
}

.history-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(43, 45, 66, 0.95);
    border-radius: var(--border-radius);
    margin-top: 0.25rem;
    max-height: 200px;
    overflow-y: auto;
    z-index: 10;
    display: none;
}

.history-dropdown.show {
    display: block;
}

.history-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.history-item:hover {
    background: rgba(67, 97, 238, 0.2);
}

.settings-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Button Styles */
.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #c1121f;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--light-color);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--light-color);
}

/* Graph Section */
.visualization-card {
    margin: 2rem 0;
}

.graph-container {
    height: 250px;
    width: 100%;
    position: relative;
}

/* History Section */
.history-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.history-filter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.history-filter select {
    padding: 0.5rem;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.history-table-container {
    overflow-x: auto;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
}

.history-table th,
.history-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.history-table th {
    background: rgba(0, 0, 0, 0.3);
    font-weight: 600;
    color: var(--success-color);
}

.history-table tbody tr {
    transition: var(--transition);
}

.history-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

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

.status-failed {
    color: var(--danger-color);
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 1.5rem;
    background: rgba(43, 45, 66, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: auto;
}

.app-footer p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--gray-color);
}

.app-footer i {
    color: var(--danger-color);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    background: var(--dark-color);
    color: white;
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease, fadeOut 0.5s ease 2.5s forwards;
    min-width: 300px;
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

.toast i {
    font-size: 1.2rem;
}

.toast.success i {
    color: var(--success-color);
}

.toast.error i {
    color: var(--danger-color);
}

.toast.warning i {
    color: var(--warning-color);
}

/* Animations */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .settings-row {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .history-controls {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
}