:root {
    --bg-color: #ffffff;
    --text-primary: #24292e;
    --text-secondary: #586069;
    --accent-border: #eaecef;
    --hover-bg: #f6f8fa;
    --code-bg: #f9f9f9;
    --card-bg: #ffffff;

    /* Syntax Highlighting Colors */
    --color-git: #d73a49;
    --color-command: #005cc5;
    --color-flag: #22863a;
    --color-placeholder: #e36209;
    --color-string: #6f42c1;
    --color-param: #032f62;

    --transition-speed: 0.3s;
}

[data-theme='dark'] {
    --bg-color: #0d1117;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-border: #30363d;
    --hover-bg: #161b22;
    --code-bg: #161b22;
    --card-bg: #0d1117;

    /* Dark Syntax Highlighting */
    --color-git: #ff7b72;
    --color-command: #79c0ff;
    --color-flag: #7ee787;
    --color-placeholder: #ffa657;
    --color-string: #d2a8ff;
    --color-param: #a5d6ff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 5rem 1.5rem;
}

.header {
    margin-bottom: 4rem;
    text-align: left;
}

h1 {
    font-size: 3.25rem;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 0.75rem;
    line-height: 1.1;
    color: var(--text-primary);
}

.subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.1px;
    margin-bottom: 3rem;
}

.intro-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.intro-card {
    background: var(--card-bg);
    border: 1px solid var(--accent-border);
    padding: 1.5rem;
    border-radius: 12px;
}

.intro-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.intro-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.search-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-container {
    flex: 1;
}

#search-input {
    width: 100%;
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    border: 1px solid var(--accent-border);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: all var(--transition-speed) ease;
    outline: none;
}

.secondary-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.secondary-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

#search-input:focus {
    border-color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

#search-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.commands-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.no-results {
    padding: 4rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
}

.command-card {
    background: var(--card-bg);
    border: 1px solid var(--accent-border);
    padding: 2rem;
    border-radius: 12px;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(20px);
}

.command-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.command-card:hover {
    border-color: var(--text-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.command-card p {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 1.25rem;
    letter-spacing: -0.2px;
}

.command-card .code-container {
    background: var(--code-bg);
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--accent-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    position: relative;
    transition: border-color var(--transition-speed);
}

.command-card code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 1.05rem;
    font-weight: 500;
    white-space: nowrap;
    overflow-x: auto;
    flex: 1;
    min-width: 0;
    padding-right: 1rem;
    color: var(--text-primary);
}

.command-card code::-webkit-scrollbar {
    height: 0px;
    display: none;
}

.copy-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 1rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    opacity: 0.4;
}

.copy-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
    opacity: 1;
}

.copy-btn svg {
    width: 18px;
    height: 18px;
}

.copy-btn.copied {
    color: var(--color-flag);
    opacity: 1;
}

.t-git {
    color: var(--color-git);
    font-weight: 600;
}

.t-cmd {
    color: var(--color-command);
    font-weight: 500;
}

.t-flag {
    color: var(--color-flag);
}

.t-placeholder {
    color: var(--color-placeholder);
}

.t-string {
    color: var(--color-string);
}

.t-param {
    color: var(--color-param);
}

.fade-in {
    animation: fadeIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer {
    margin-top: 6rem;
    padding-top: 3rem;
    border-top: 1px solid var(--accent-border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.footer a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}

#theme-toggle {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background: var(--text-primary);
    cursor: pointer;
    padding: 0;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

#theme-toggle:hover {
    transform: scale(1.2);
}

@media (max-width: 600px) {
    h1 {
        font-size: 2.5rem;
    }

    .container {
        padding: 3.5rem 1.25rem;
    }

    .intro-section {
        grid-template-columns: 1fr;
    }

    .search-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .secondary-btn {
        justify-content: center;
    }

    .command-card {
        padding: 1.5rem;
    }

    .command-card code {
        font-size: 0.95rem;
    }
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-border);
    border-radius: 10px;
}

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