:root {
    --neo-black: #000000;
    --neo-white: #FFFFFF;
    --neo-yellow: #FFD700;
    --neo-pink: #FF6B9D;
    --neo-blue: #00D4FF;
    --neo-green: #00FF85;
    --neo-purple: #B388FF;
    --neo-red: #FF4757;
    --neo-shadow: 6px 6px 0px #000000;
    --neo-shadow-hover: 4px 4px 0px #000000;
}

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

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    font-family: 'Sora', sans-serif;
    background-color: var(--neo-white);
    color: var(--neo-black);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.neo-card {
    background: var(--neo-white);
    border: 4px solid var(--neo-black);
    box-shadow: var(--neo-shadow);
    transition: all 0.2s ease;
    padding: 2rem;
}

.neo-card:hover {
    box-shadow: var(--neo-shadow-hover);
    transform: translate(2px, 2px);
}

.neo-btn {
    background: var(--neo-white);
    border: 4px solid var(--neo-black);
    color: var(--neo-black);
    font-weight: 900;
    padding: 12px 24px;
    text-transform: uppercase;
    box-shadow: 5px 5px 0px var(--neo-black);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.neo-btn:hover {
    box-shadow: 3px 3px 0px var(--neo-black);
    transform: translate(2px, 2px);
    color: var(--neo-black);
}

.neo-btn:active {
    box-shadow: 1px 1px 0px var(--neo-black);
    transform: translate(4px, 4px);
}

.neo-btn-primary {
    background: var(--neo-yellow);
}

.neo-btn-danger {
    background: var(--neo-red);
    color: var(--neo-white);
}

.neo-btn-success {
    background: var(--neo-green);
}

.neo-btn-info {
    background: var(--neo-blue);
}

.neo-input {
    border: 4px solid var(--neo-black);
    padding: 12px;
    font-size: 16px;
    width: 100%;
    background: var(--neo-white);
    box-shadow: 4px 4px 0px var(--neo-black);
    transition: all 0.2s ease;
}

.neo-input:focus {
    outline: none;
    box-shadow: 2px 2px 0px var(--neo-black);
    transform: translate(2px, 2px);
}

.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--neo-white);
    border-right: 6px solid var(--neo-black);
    padding: 2rem 1rem;
    z-index: 1000;
    overflow-y: auto;
}

.admin-sidebar-toggle {
    display: none;
    position: fixed;
    left: 20px;
    bottom: 20px;
    width: 60px;
    height: 60px;
    background: var(--neo-yellow);
    border: 4px solid var(--neo-black);
    border-radius: 50%;
    box-shadow: var(--neo-shadow);
    z-index: 1001;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.admin-sidebar.collapsed {
    transform: translateX(-100%);
}

.content-with-sidebar {
    margin-left: 280px;
    transition: margin-left 0.3s ease;
}

.content-with-sidebar.full-width {
    margin-left: 0;
}

.sidebar-header {
    margin-bottom: 2rem;
}

.sidebar-header h2 {
    font-weight: 900;
    font-size: 1.5rem;
    text-transform: uppercase;
    border: 4px solid var(--neo-black);
    padding: 1rem;
    background: var(--neo-white);
    box-shadow: 4px 4px 0px var(--neo-black);
}

.sidebar-menu {
    list-style: none;
    padding: 0;
}

.sidebar-menu-item {
    margin-bottom: 1rem;
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--neo-white);
    border: 4px solid var(--neo-black);
    color: var(--neo-black);
    text-decoration: none;
    font-weight: 700;
    box-shadow: 4px 4px 0px var(--neo-black);
    transition: all 0.2s ease;
    text-transform: uppercase;
}

.sidebar-menu-link:hover {
    box-shadow: 2px 2px 0px var(--neo-black);
    transform: translate(2px, 2px);
    background: var(--neo-black);
    color: var(--neo-white);
}

.sidebar-menu-link.active {
    background: var(--neo-black);
    color: var(--neo-white);
}

.sidebar-menu-link i {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

.main-content {
    padding: 2rem;
    min-height: 100vh;
}

.neo-navbar {
    background: var(--neo-black);
    border-bottom: 4px solid var(--neo-black);
    padding: 0.5rem 2rem;
}

.neo-navbar .navbar-brand {
    font-weight: 900;
    font-size: 1.25rem;
    color: var(--neo-white);
    text-transform: uppercase;
    border: 3px solid var(--neo-white);
    padding: 0.25rem 0.75rem;
    background: var(--neo-black);
}

.neo-navbar .nav-link {
    color: var(--neo-white);
    border: 3px solid var(--neo-black);
    padding: 0.5rem 1rem;
    margin: 0 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: background 0.2s ease, color 0.2s ease;
    background: var(--neo-black);
}

.neo-navbar .nav-link:hover {
    background: var(--neo-white);
    color: var(--neo-black);
}

.neo-navbar span.nav-link {
    cursor: default;
}

.neo-navbar span.nav-link:hover {
    background: var(--neo-black);
    color: var(--neo-white);
}

.neo-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.neo-table th,
.neo-table td {
    border: 3px solid var(--neo-black);
    padding: 1rem;
    text-align: left;
}

.neo-table thead {
    background: var(--neo-yellow);
    font-weight: 900;
    text-transform: uppercase;
}

.neo-table tbody tr {
    background: var(--neo-white);
    transition: background 0.2s ease;
}

.neo-table tbody tr:hover {
    background: var(--neo-blue);
}

.neo-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--neo-white);
    border: 3px solid var(--neo-black);
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 3px 3px 0px var(--neo-black);
}

.neo-badge-admin {
    background: var(--neo-red);
    color: var(--neo-white);
}

.neo-badge-user {
    background: var(--neo-green);
}

.neo-form-group {
    margin-bottom: 1.5rem;
}

.neo-form-label {
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
    text-transform: uppercase;
}

@media (max-width: 992px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 2000;
    }

    .admin-sidebar.show {
        transform: translateX(0);
    }

    .admin-sidebar-toggle {
        display: flex;
    }

    .content-with-sidebar {
        margin-left: 0;
    }

    .neo-hero h1 {
        font-size: 2rem;
    }

    .neo-card {
        padding: 1rem;
    }

    .neo-table {
        font-size: 0.85rem;
    }

    .neo-table th,
    .neo-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 576px) {
    .neo-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .sidebar-menu-link {
        font-size: 0.85rem;
        padding: 0.75rem;
    }

    .neo-hero {
        padding: 2rem 1rem;
    }

    .neo-hero h1 {
        font-size: 1.5rem;
    }
}

.neo-hero {
    padding: 4rem 2rem;
    text-align: center;
    background: var(--neo-pink);
    border: 6px solid var(--neo-black);
    box-shadow: 10px 10px 0px var(--neo-black);
    margin-bottom: 2rem;
}

.neo-hero h1 {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 1rem;
    color: var(--neo-white);
    text-shadow: 4px 4px 0px var(--neo-black);
}

.neo-hero p {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--neo-white);
}

.text-bold {
    font-weight: 900;
}

.text-upper {
    text-transform: uppercase;
}

.neo-footer {
    background: var(--neo-black);
    color: var(--neo-white);
    padding: 2rem;
    border-top: 6px solid var(--neo-black);
    margin-top: 4rem;
    text-align: center;
    font-weight: 700;
}

.neo-footer a {
    color: var(--neo-yellow);
    text-decoration: none;
    font-weight: 900;
    border-bottom: 3px solid var(--neo-yellow);
    transition: all 0.2s ease;
}

.neo-footer a:hover {
    color: var(--neo-white);
    border-bottom-color: var(--neo-white);
}

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--neo-white);
    border: 3px solid var(--neo-black);
}

::-webkit-scrollbar-thumb {
    background: var(--neo-yellow);
    border: 3px solid var(--neo-black);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neo-pink);
}

::selection {
    background: var(--neo-yellow);
    color: var(--neo-black);
}

::-moz-selection {
    background: var(--neo-yellow);
    color: var(--neo-black);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.neo-pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes glitch {
    0% {
        text-shadow: 2px 2px var(--neo-red), -2px -2px var(--neo-blue);
    }
    25% {
        text-shadow: -2px -2px var(--neo-red), 2px 2px var(--neo-blue);
    }
    50% {
        text-shadow: 2px -2px var(--neo-red), -2px 2px var(--neo-blue);
    }
    75% {
        text-shadow: -2px 2px var(--neo-red), 2px -2px var(--neo-blue);
    }
    100% {
        text-shadow: 2px 2px var(--neo-red), -2px -2px var(--neo-blue);
    }
}

.neo-glitch {
    animation: glitch 1s ease-in-out infinite;
}

.neo-hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.neo-hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 8px 8px 0px var(--neo-black);
}