/* ===== RESET & VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #00d4ff;
    --secondary-color: #0099ff;
    --accent-color: #00ffcc;
    --dark-bg: #0a0e27;
    --darker-bg: #050814;
    --card-bg: #121838;
    --text-light: #ffffff;
    --text-gray: #a0aec0;
    --danger: #ff4757;
    --warning: #ffa502;
    --success: #2ed573;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-cyber: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    --gradient-dark: linear-gradient(180deg, #0a0e27 0%, #050814 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 212, 255, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 212, 255, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--darker-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cyber);
    transition: var(--transition-normal);
}

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

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 153, 255, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(0,212,255,0.3)"/></svg>');
    background-size: 50px 50px;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 2rem;
}

.hero h1 {
    font-size: 5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.glitch {
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% {
        transform: translate(0);
    }
    92% {
        transform: translate(-2px, 2px);
    }
    94% {
        transform: translate(2px, -2px);
    }
    96% {
        transform: translate(-2px, -2px);
    }
    98% {
        transform: translate(2px, 2px);
    }
}

.hero h2 {
    font-size: 2rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--gradient-cyber);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-glow);
    border: 2px solid transparent;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.4);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 24px;
    }
}

/* ===== SECTION COMMON STYLES ===== */
section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--dark-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.about-text h3 {
    color: var(--primary-color);
    margin: 1.5rem 0 1rem;
    font-size: 1.5rem;
}

.about-text p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.stat-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-gray);
}

/* ===== THREATS SECTION ===== */
.threats {
    background: var(--darker-bg);
}

.threats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.threat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.threat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-cyber);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.threat-card:hover::before {
    transform: scaleX(1);
}

.threat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.threat-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.threat-card h3 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.threat-card p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.threat-level {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    margin-top: 1rem;
}

.threat-level.critical {
    background: rgba(255, 71, 87, 0.2);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.threat-level.high {
    background: rgba(255, 165, 2, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.threat-level.medium {
    background: rgba(46, 213, 115, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

/* ===== BEST PRACTICES SECTION ===== */
.practices {
    background: var(--dark-bg);
}

.practices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.practice-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition-normal);
    position: relative;
}

.practice-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.practice-number {
    position: absolute;
    top: -15px;
    right: 20px;
    font-size: 4rem;
    font-weight: bold;
    color: rgba(0, 212, 255, 0.1);
}

.practice-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.practice-card h3 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.practice-card p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.practice-card ul {
    list-style: none;
    margin-top: 1rem;
}

.practice-card ul li {
    color: var(--text-gray);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.practice-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===== VIDEO SECTION ===== */
.video-section {
    background: var(--darker-bg);
}

.video-container {
    max-width: 900px;
    margin: 0 auto 2rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.video-placeholder {
    background: var(--card-bg);
    padding: 4rem 2rem;
    text-align: center;
    border: 2px dashed rgba(0, 212, 255, 0.3);
}

.video-placeholder i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.video-placeholder p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.video-placeholder code {
    display: block;
    background: var(--darker-bg);
    padding: 1rem;
    border-radius: 8px;
    color: var(--accent-color);
    font-size: 0.85rem;
    margin-top: 1rem;
    text-align: left;
    overflow-x: auto;
}

.video-description {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.video-description h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.video-description p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ===== GLOSSARY SECTION ===== */
.glossary {
    background: var(--dark-bg);
}

.glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.glossary-term {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition-normal);
}

.glossary-term:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.glossary-term h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.glossary-term p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--darker-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.author-info {
    text-align: center;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.author-avatar i {
    font-size: 6rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.author-info h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.author-title {
    color: var(--accent-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.author-bio {
    color: var(--text-gray);
    line-height: 1.7;
    margin: 1.5rem 0;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-cyber);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-normal);
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.project-info {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.project-info h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.project-info ul {
    list-style: none;
}

.project-info ul li {
    color: var(--text-gray);
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.project-info ul li:last-child {
    border-bottom: none;
}

.project-info ul li i {
    color: var(--primary-color);
}

.cta-container {
    margin-top: 2rem;
    text-align: center;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.footer p {
    color: var(--text-gray);
    margin: 0.5rem 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .threats-grid,
    .practices-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }