:root {
    --primary-color: #6e78ff;
    --primary-dark: #5a63d6;
    --secondary-color: #2a2d3e;
    --text-color: #e0e0e0;
    --light-text: #f5f5f5;
    --dark-bg: #13151f;
    --darker-bg: #0c0d14;
    --terminal-bg: #0d1026;
    --accent-color: #a78bfa;
    --highlight-color: #8b5cf6;
    --border-color: rgba(110, 120, 255, 0.2);
    --border-radius: 6px;
    --box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto Mono', 'Courier New', monospace;
    line-height: 1.6;
    background-color: var(--dark-bg);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative; 
}

.container {
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
    margin: 0 auto;
    position: static; 
}

/* Header Styles */
.header-bar {
    background-color: var(--darker-bg);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky; 
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    position: relative; 
}

.logo::after {
    content: "v3.0";
    position: absolute; 
    top: -10px;
    right: -30px;
    background-color: var(--highlight-color);
    color: var(--light-text);
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 0.6rem;
    font-weight: bold;
}

.logo-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo-link:hover {
    color: var(--accent-color);
}

.top-nav {
    display: flex;
    gap: 25px;
}

.top-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    position: relative; 
}

.top-nav a::after {
    content: "";
    position: absolute; 
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.top-nav a:hover {
    color: var(--primary-color);
}

.top-nav a:hover::after {
    width: 100%;
}

.top-nav a.active::after {
    width: 100%;
}

.admin-link {
    background-color: rgba(110, 120, 255, 0.1);
    padding: 5px 15px !important;
}

.admin-link:hover {
    background-color: rgba(110, 120, 255, 0.2);
}

.main-container {
    flex: 1;
    padding-top: 50px;
    padding-bottom: 50px;
}

.hero {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

h1::before {
    content: "// ";
    color: var(--accent-color);
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 30px;
    opacity: 0.9;
}

.description {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 50px;
    color: var(--text-color);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Terminal Design */
.terminal-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 60px;
}

.terminal {
    width: 100%;
    max-width: 800px;
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: var(--terminal-bg);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}

.terminal-header {
    background-color: var(--secondary-color);
    padding: 10px 15px;
    color: #aaa;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-content {
    padding: 20px 25px;
    color: var(--light-text);
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.8;
    min-height: 250px;
    position: relative; 
    padding-bottom: 40px; 
}

.terminal-content::after {
    content: "Type 'help' for available commands";
    position: absolute; 
    bottom: 10px;
    right: 20px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

.terminal-content p {
    margin-bottom: 10px;
    color: var(--light-text);
}

.terminal-content p::first-letter {
    font-size: 1.05em;
    font-weight: bold;
    color: var(--highlight-color);
}

.cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background-color: var(--primary-color);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}


.button-container {
    margin: 30px 0;
}

.button {
    display: inline-block;
    padding: 12px 40px;
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    position: relative; 
    z-index: 1;
}

.button::before {
    content: "";
    position: absolute; 
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--highlight-color);
    border-radius: 30px;
    z-index: -1;
    transform: scale(0.5, 0.5);
    opacity: 0;
    transition: var(--transition);
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.25);
}

.button:hover::before {
    transform: scale(1, 1);
    opacity: 1;
}


.content-section {
    background-color: rgba(110, 120, 255, 0.05);
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 50px;
    border: 1px solid var(--border-color);
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    position: sticky; 
    top: 70px;
    background-color: var(--dark-bg);
    z-index: 50;
}

h2::before {
    content: "// ";
    color: var(--accent-color);
    font-weight: bold;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--light-text);
}

p {
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.7;
}


.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.card {
    background-color: var(--terminal-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative; 
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.card-header {
    background-color: rgba(110, 120, 255, 0.1);
    padding: 15px 20px;
}

.card-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.card-body {
    padding: 20px;
}

.card-body p::before {
    content: "$ ";
    color: var(--primary-color);
    font-weight: bold;
}


pre {
    background-color: var(--darker-bg);
    border-radius: var(--border-radius);
    padding: 15px;
    margin: 15px 0;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

code {
    font-family: 'Roboto Mono', 'Courier New', monospace;
    color: var(--light-text);
    font-size: 0.85rem;
    line-height: 1.5;
}


.topics-section {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.topic {
    background-color: rgba(110, 120, 255, 0.05);
    padding: 25px;
    padding-left: 30px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative; 
}

.topic::before {
    content: "";
    position: absolute; 
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-color);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.topic:hover {
    background-color: rgba(110, 120, 255, 0.08);
    transform: translateY(-3px);
}

.topic h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.topic h3 a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Security Indicators */
.security-indicator {
    display: inline-block;
    padding: 5px 10px;
    border-radius: var(--border-radius);
    margin-top: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.command-example {
    margin-top: 15px;
}


footer {
    background-color: var(--darker-bg);
    padding: 25px 0;
    text-align: center;
    margin-top: auto;
}

footer p {
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 0;
}


.back-to-top {
    position: fixed; 
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: var(--light-text);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    z-index: 99;
    opacity: 0.8;
    transition: var(--transition);
}

.back-to-top:hover {
    opacity: 1;
    transform: translateY(-5px);
}

.back-to-top::before {
    content: "↑";
    font-size: 1.5rem;
}


.terminal-input {
    background-color: transparent;
    border: none;
    color: var(--light-text);
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.95rem;
    outline: none;
    padding: 0 5px;
    margin-left: 5px;
    width: 70%;
    position: relative; 
}

.terminal-message {
    background-color: rgba(13, 16, 38, 0.5);
    border: 1px solid var(--border-color);
    color: var(--light-text);
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.95rem;
    resize: vertical;
    min-height: 100px;
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    outline: none;
}

.terminal-button {
    background-color: var(--primary-color);
    border: none;
    color: var(--light-text);
    padding: 8px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-family: 'Roboto Mono', 'Courier New', monospace;
    margin-top: 10px;
    transition: var(--transition);
    position: relative; /* Added positioning */
    overflow: hidden;
}

.terminal-button::before {
    content: "";
    position: absolute; 
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.terminal-button:hover {
    background-color: var(--highlight-color);
    transform: translateY(-2px);
}

.terminal-button:hover::before {
    left: 100%;
}

.terminal-form p {
    margin-bottom: 15px;
}


::selection {
    background-color: var(--primary-color);
    color: var(--light-text);
}


@media (max-width: 768px) {
    .terminal {
        max-width: 95%;
    }
    
    .terminal-content {
        font-size: 0.85rem;
        padding: 15px;
    }
    
    .content-section {
        padding: 25px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .cards-grid, 
    .topics-section {
        grid-template-columns: 1fr;
    }
    
    .top-nav {
        gap: 15px;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .top-nav {
        width: 100%;
        justify-content: center;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .button {
        padding: 10px 30px;
        font-size: 0.9rem;
    }
    
    .content-section {
        padding: 20px;
    }
}