:root {
    --primary: #00ff00;
    --primary-dark: #00cc00;
    --background: #0a0a0a;
    --card-bg: #111;
    --text: #e0e0e0;
    --text-secondary: #aaa;
    --border: #333;
    --linux: #2e7d32;
    --windows: #1565c0;
    --easy: #00c853;
    --medium: #ffab00;
    --hard: #ff6d00;
    --insane: #d50000;
}

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

body {
    font-family: 'Courier New', monospace;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

header {
    background-color: #000;
    padding: 2rem 0;
    text-align: center;
    border-bottom: 1px solid var(--primary);
    margin-bottom: 2rem;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1 {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

h1 i {
    margin-right: 10px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Barra de búsqueda */
.search-container {
    max-width: 100%;
    margin: 0 auto 2rem;
    background-color: #111;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.search-box {
    display: flex;
    align-items: center;
    background-color: #1a1a1a;
    border-radius: 30px;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 255, 0, 0.2);
}

.search-icon {
    color: #666;
    margin-right: 10px;
    font-size: 1rem;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 1rem;
    padding: 0.5rem 0;
    outline: none;
    font-family: 'Courier New', monospace;
}

.search-input::placeholder {
    color: #555;
}

.search-filters {
    display: flex;
    margin-left: 15px;
    gap: 10px;
}

.filter-select {
    background-color: #333;
    color: var(--text);
    border: 1px solid #444;
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    font-family: 'Courier New', monospace;
}

.filter-select:hover {
    border-color: #666;
}

.exact-match {
    display: flex;
    align-items: center;
    margin-top: 1rem;
    margin-left: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

.exact-match input {
    margin-right: 8px;
    accent-color: var(--primary);
}

/* Barra de estadísticas */
.stats-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.machines-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.machines-count i {
    margin-right: 5px;
    color: var(--primary);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sort-select {
    background-color: #333;
    color: var(--text);
    border: 1px solid #444;
    border-radius: 5px;
    padding: 0.3rem 0.6rem;
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    font-family: 'Courier New', monospace;
}

/* Grid de máquinas */
.machines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.machine-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.machine-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.machine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.machine-header h3 {
    color: var(--primary);
    font-size: 1.3rem;
}

.machine-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.ip-address, .os {
    display: flex;
    align-items: center;
    gap: 5px;
}

.ip-address i, .os i {
    font-size: 0.9rem;
}

.os {
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    font-weight: bold;
    font-size: 0.8rem;
}

.os.linux {
    background-color: var(--linux);
    color: white;
}

.os.windows {
    background-color: var(--windows);
    color: white;
}

.difficulty {
    padding: 0.3rem 0.8rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 5px;
}

.difficulty i {
    font-size: 0.8rem;
}

.difficulty.easy {
    background-color: var(--easy);
    color: black;
}

.difficulty.medium {
    background-color: var(--medium);
    color: black;
}

.difficulty.hard {
    background-color: var(--hard);
    color: white;
}

.difficulty.insane {
    background-color: var(--insane);
    color: white;
}

.machine-techniques, .machine-certifications {
    margin-bottom: 1rem;
}

.machine-techniques h4, .machine-certifications h4 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.machine-techniques ul {
    list-style-type: none;
    padding-left: 1.2rem;
}

.machine-techniques li {
    position: relative;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.machine-techniques li:before {
    content: "→";
    position: absolute;
    left: -1.2rem;
    color: var(--primary);
}

.cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cert-badge {
    background-color: #333;
    color: var(--primary);
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    font-size: 0.7rem;
    border: 1px solid var(--primary);
}

.view-writeup {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 1rem;
    padding: 0.6rem 1.2rem;
    background-color: var(--primary);
    color: black;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.view-writeup:hover {
    background-color: var(--primary-dark);
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .search-box {
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
    }
    
    .search-input {
        margin-bottom: 1rem;
    }
    
    .search-filters {
        margin-left: 0;
        flex-direction: column;
    }
    
    .stats-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .machines-grid {
        grid-template-columns: 1fr;
    }
}