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

body {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a0f0f 100%);
    color: #e0e0e0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: grid;
    grid-template-areas:
        "header"
        "nav"
        "main"
        "footer";
    grid-template-rows: auto auto 1fr auto;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

code {
    background-color: rgba(139, 0, 0, 0.2);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    color: #ff9999;
}

/* Header */
.site-header {
    grid-area: header;
    background: linear-gradient(135deg, #2a0000 0%, #8B0000 100%);
    padding: 2rem 1rem;
    text-align: center;
    border-bottom: 3px solid #a52a2a;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.site-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: 3px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    color: #fff;
}

/* Nav */
.site-nav {
    grid-area: nav;
    background-color: rgba(20, 10, 10, 0.95);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem;
    border-bottom: 2px solid #5a0000;
    backdrop-filter: blur(10px);
}

/* Hamburger menu button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.menu-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: #ff9999;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-6px, -6px);
}

.site-nav ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.8rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.site-nav a {
    display: block;
    padding: 0.9rem 0.5rem;
    background: linear-gradient(135deg, #5a0000 0%, #3d0000 100%);
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid rgba(139, 0, 0, 0.4);
    font-size: clamp(0.85rem, 2vw, 1rem);
}

.site-nav a:hover {
    background: linear-gradient(135deg, #8B0000 0%, #6a0000 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(139, 0, 0, 0.5);
}

/* Main Content */
.content-grid {
    grid-area: main;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 1.5rem 1rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.category-section {
    background: linear-gradient(135deg, rgba(20, 10, 10, 0.6) 0%, rgba(10, 5, 5, 0.8) 100%);
    border: 1px solid rgba(139, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
}

.category-section h2 {
    color: #ff9999;
    border-bottom: 2px solid #8B0000;
    padding-bottom: 0.7rem;
    margin-bottom: 1.5rem;
    font-size: clamp(1.3rem, 3vw, 1.8rem);
}

.command-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.2rem;
}

.command-list li {
    background: linear-gradient(135deg, rgba(30, 10, 10, 0.4) 0%, rgba(20, 5, 5, 0.3) 100%);
    padding: 1.2rem;
    border-radius: 8px;
    border-left: 4px solid #8B0000;
    transition: all 0.3s ease;
    border: 1px solid rgba(139, 0, 0, 0.25);
}

.command-list li:hover {
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(50, 15, 15, 0.5) 0%, rgba(30, 10, 10, 0.4) 100%);
    box-shadow: 0 6px 16px rgba(139, 0, 0, 0.4);
    border-left-color: #cd5c5c;
}

.command-list h3 {
    color: #ffcccc;
    font-family: 'Courier New', monospace;
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    margin-bottom: 0.6rem;
    font-weight: 600;
}

.command-list p {
    color: #cccccc;
    line-height: 1.6;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

/* Footer */
.site-footer {
    grid-area: footer;
    background: linear-gradient(135deg, #1a0f0f 0%, #0a0a0a 100%);
    padding: 2rem 1rem;
    text-align: center;
    border-top: 2px solid #5a0000;
    color: #999;
    font-size: clamp(0.85rem, 2vw, 1rem);
}

/* Responsive breakpoints */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
        position: relative;
        z-index: 102;
    }

    .site-nav ul {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 280px;
        max-width: 70%;
        background: linear-gradient(135deg, rgba(20, 10, 10, 0.98) 0%, rgba(10, 5, 5, 0.98) 100%);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        display: grid;
        grid-template-columns: 1fr;
        grid-auto-rows: min-content;
        row-gap: 1rem;
        padding: 3.5rem 0.8rem 1rem 0.8rem;
        margin: 0;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
        border-right: 2px solid #5a0000;
        overflow-y: auto;
    }

    .site-nav ul.active {
        transform: translateX(0);
    }

    .site-nav li {
        margin: 0;
        padding: 0;
    }

    .site-nav a {
        padding: 0.7rem 0.9rem;
        font-size: 0.95rem;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .site-header {
        padding: 1.5rem 0.8rem;
    }

    .site-nav {
        padding: 0.8rem;
    }

    .content-grid {
        padding: 1rem 0.8rem;
        gap: 1.5rem;
    }

    .category-section {
        padding: 1.2rem;
    }

    .command-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .command-list li {
        padding: 1rem;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .site-header {
        padding: 1.5rem 1rem;
    }

    .content-grid {
        padding: 1.2rem 1rem;
        gap: 1.5rem;
    }

    .category-section {
        padding: 1.3rem;
    }

    .command-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .site-nav ul {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .content-grid {
        padding: 1.5rem;
    }

    .command-list {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (min-width: 1025px) {
    .content-grid {
        padding: 2rem;
    }

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