/* Reset and base styles */
:root {
    /* Dark theme (default) */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --accent-primary: #60a5fa;
    --accent-secondary: #a855f7;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Theme toggle */
.theme-toggle {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .theme-toggle-light,
[data-theme="light"] .theme-toggle-dark {
    display: none;
}

/* Header styles */
header {
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Main content styles */
.main-content {
    background-color: var(--bg-secondary);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0px 4px 10px rgba(0, 0, 139, 0.8); /* Dark blue shadow */
}


/* Control panel styles */
.control-panel {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #22c55e;
    color: white;
}

.btn-primary:hover {
    background-color: #16a34a;
}

.btn-primary.logging {
    background-color: #ef4444;
}

.btn-primary.logging:hover {
    background-color: #dc2626;
}

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

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

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

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

/* Status indicator styles */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.status-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background-color: var(--text-secondary);
    transition: background-color 0.3s ease;
}

.status-dot.active {
    background-color: #22c55e;
    animation: pulse 2s infinite;
}

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

.status-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Panels container styles */
.panels-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.panel {
    background-color: var(--bg-primary);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.panel h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Textarea styles */
textarea {
    width: 100%;
    height: 300px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    resize: none;
    transition: border-color 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Log display styles */
.log-display {
    height: 300px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    padding-right: 0.5rem;
}

.log-entry {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.log-entry:last-child {
    border-bottom: none;
}

/* Educational note styles */
.educational-note {
    background-color: var(--bg-primary);
    border-radius: 0.75rem;
    padding: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.educational-note strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Info section styles */
.info-section {
    background-color: var(--bg-secondary);
    border-radius: 1rem;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 6px -1px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.info-section h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.info-section h2:first-child {
    margin-top: 0;
}

.info-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.info-section ul {
    list-style-type: none;
    margin-bottom: 1.5rem;
}

.info-section li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.info-section li::before {
    content: "•";
    color: var(--accent-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Footer styles */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}