/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #121212;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-green: #00ff41;
    --accent-red: #ff0040;
    --accent-blue: #00d4ff;
    --accent-purple: #9d4edd;
    --border-color: #2a2a2a;
    --shadow: rgba(0, 0, 0, 0.5);
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.2rem;
}

.logo {
    color: var(--accent-green);
    font-family: var(--font-mono);
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-green);
    transition: width 0.3s ease;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.grid-overlay {
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.greeting {
    font-size: 1.2rem;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.name {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title {
    font-size: 2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background-color: var(--accent-green);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 65, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-green);
    border: 2px solid var(--accent-green);
}

.btn-secondary:hover {
    background-color: var(--accent-green);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.hero-terminal {
    background-color: var(--bg-tertiary);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 10px 40px var(--shadow);
}

.terminal-header {
    background-color: var(--bg-secondary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red {
    background-color: var(--accent-red);
}

.terminal-dot.yellow {
    background-color: #ffaa00;
}

.terminal-dot.green {
    background-color: var(--accent-green);
}

.terminal-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: var(--accent-green);
    margin-right: 0.5rem;
}

.command {
    color: var(--text-primary);
}

.output-text {
    color: var(--accent-blue);
}

.cursor {
    color: var(--accent-green);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background-color: var(--accent-green);
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -4px;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--accent-green);
    border-bottom: 2px solid var(--accent-green);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-number {
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 1.5rem;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background-color: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
}

.about-list {
    list-style: none;
    margin: 1.5rem 0;
}

.about-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.about-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-size: 1.2rem;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 10px;
    border: 2px solid var(--accent-green);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 255, 65, 0.2);
}

/* ============================================
   Skills Section
   ============================================ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background-color: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 65, 0.1);
}

.skill-category-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-green);
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.skill-bar {
    height: 8px;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    border-radius: 4px;
    transition: width 1s ease;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-2px);
}

.certifications {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: 5px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.cert-item:hover {
    border-color: var(--accent-green);
    transform: translateX(5px);
}

.cert-icon {
    font-size: 1.5rem;
}

.cert-info {
    display: flex;
    flex-direction: column;
}

.cert-name {
    font-weight: 600;
    color: var(--accent-green);
}

.cert-org {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ============================================
   Projects Section
   ============================================ */
.projects {
    background-color: var(--bg-secondary);
}

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

.project-card {
    background-color: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-green);
    box-shadow: 0 10px 30px rgba(0, 255, 65, 0.2);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon {
    font-size: 2rem;
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.project-link {
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

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

.project-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-green);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tag {
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 5px;
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    min-width: 300px;
    justify-content: center;
}

.contact-method:hover {
    border-color: var(--accent-green);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0, 255, 65, 0.2);
}

.contact-method svg {
    color: var(--accent-green);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.heart {
    color: var(--accent-red);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        padding: 2rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .name {
        font-size: 2.5rem;
    }

    .title {
        font-size: 1.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .contact-method {
        min-width: auto;
        width: 100%;
    }
}