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

:root {
    /* Light mode colors */
    --bg-color: #ffffff;
    --text-color: #333333;
    --header-bg: #f8f9fa;
    --border-color: #e9ecef;
    --menu-bg: #ffffff;
    --menu-shadow: rgba(0, 0, 0, 0.1);
    --button-hover: #f0f0f0;
    --accent-color: #007bff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
}

body.dark-mode {
    /* Dark mode colors */
    --bg-color: #1a1a1a;
    --text-color: #e4e4e4;
    --header-bg: #2d2d2d;
    --border-color: #404040;
    --menu-bg: #2d2d2d;
    --menu-shadow: rgba(0, 0, 0, 0.3);
    --button-hover: #3d3d3d;
    --accent-color: #4dabf7;
    --success-color: #51cf66;
    --danger-color: #ff6b6b;
    --warning-color: #ffd43b;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px; /* Increased base font size by ~1.3x from default 12px */
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Hidden utility class */
.hidden {
    display: none !important;
}

/* Disabled utility class */
.disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

/* Button styles */
.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), #0056b3);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px; /* Increased from 14px */
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    padding: 10px 22px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px; /* Increased from 14px */
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--accent-color), #0056b3);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.2);
}

.btn-link {
    background: none;
    border: none;
    color: var(--accent-color);
    text-decoration: underline;
    cursor: pointer;
    padding: 8px 12px;
    font-size: 16px; /* Increased from default */
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-link:hover {
    background-color: rgba(0, 123, 255, 0.1);
    text-decoration: none;
}

/* Form styles */
.form-group {
    margin-bottom: 18px; /* Increased from 15px */
}

.form-group label {
    display: block;
    margin-bottom: 8px; /* Increased from 5px */
    font-weight: 600; /* Increased from 500 */
    font-size: 16px; /* Added explicit size */
    color: var(--text-color);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px; /* Increased from 8px 12px */
    border: 2px solid var(--border-color);
    border-radius: 6px; /* Increased from 4px */
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 16px; /* Increased from 14px */
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
    transform: translateY(-1px);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px; /* Increased from 15px */
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.required {
    color: var(--danger-color);
}

.input-feedback {
    font-size: 14px; /* Increased from 12px */
    margin-top: 8px; /* Increased from 5px */
    font-weight: 500;
}

/* Message display */
#message-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
}

#message-display {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px var(--menu-shadow);
    transition: all 0.3s ease;
}

/* Status indicators */
.status-connected {
    color: var(--success-color);
}

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

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

/* Responsive design */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .header-center span {
        display: none;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease;
}

.slide-in {
    animation: slideIn 0.3s ease;
}

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

.status-error {
    color: var(--danger-color);
    font-weight: bold;
}

.input-feedback.warning {
    color: var(--warning-color);
}
.input-feedback.success {
    color: var(--success-color);
}
.input-feedback.error {
    color: var(--danger-color);
}