/* Dark Mode Variables */
.dark-mode {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --background: #0f172a;
    --surface: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border: #334155;
    --card-bg: #1e293b;
    --hover-bg: #2d3b4f;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;
}

/* Dark mode specific adjustments */
.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.8);
    border-bottom-color: var(--border);
}

.dark-mode .card,
.dark-mode .tool-card,
.dark-mode .category-card {
    background: var(--card-bg);
}

.dark-mode .badge {
    background: var(--surface);
    color: var(--text-secondary);
}

.dark-mode .btn {
    background: var(--surface);
    color: var(--text-secondary);
}

.dark-mode .btn:hover {
    background: var(--hover-bg);
}

.dark-mode .input-area textarea,
.dark-mode .output-area textarea {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text-primary);
}

.dark-mode .search-results {
    background: var(--surface);
    border-color: var(--border);
}

.dark-mode .search-result:hover {
    background: var(--hover-bg);
}

/* Smooth transition for theme toggle */
body, 
.navbar,
.card,
.tool-card,
.category-card,
.btn,
textarea,
input {
    transition: background-color 0.3s ease, 
                border-color 0.3s ease, 
                color 0.3s ease;
}