:root {
    /* Dark Theme (Default) */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #22d3ee;
    --glass-blur: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --input-bg: rgba(255, 255, 255, 0.05);
    --code-bg: rgba(0, 0, 0, 0.3);
    --code-text: #a5b4fc;
}

[data-theme="light"] {
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(0, 0, 0, 0.1);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --accent-color: #0891b2;
    --input-bg: #ffffff;
    --glass-blur: 10px;
    --code-bg: #f1f5f9;
    --code-text: #4338ca;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem;
    line-height: 1.5;
}

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

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #818cf8, #22d3ee);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto 2rem;
}

#search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    backdrop-filter: blur(var(--glass-blur));
    transition: var(--transition);
}

#search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 9999px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.command-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(var(--glass-blur));
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    opacity: 0.5;
}

.card-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-gradient);
    background-attachment: fixed;
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Card Actions */
.card-actions {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: var(--transition);
}

.card:hover .card-actions {
    opacity: 1;
}

.action-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 6px;
    padding: 0.4rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.action-btn.delete:hover {
    background: #ef4444;
}

.command-box {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Fira Code', 'Monaco', monospace;
    font-size: 0.85rem;
    color: var(--code-text);
    margin-bottom: 1rem;
    word-break: break-all;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.copy-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--primary-color);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.copy-btn:hover {
    background: var(--primary-hover);
}

.copy-btn.copied {
    background: #10b981;
}

@media (max-width: 640px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }
}