/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Orange and Cream Theme Color Palette */
    --bg-primary: #FFF8F0;  /* Warm cream background */
    --bg-secondary: #FFF5E6;  /* Lighter cream */
    --bg-tertiary: #FFEFD5;  /* Accent cream */
    --text-primary: #2C1810;  /* Dark brown text */
    --text-secondary: #5D4E37;  /* Medium brown */
    --text-muted: #8B7355;  /* Light brown */
    --accent-primary: #FF6B35;  /* Vibrant orange */
    --accent-secondary: #FF8C42;  /* Lighter orange */
    --accent-tertiary: #FFA947;  /* Golden orange */
    --border-color: #E8D5C4;  /* Soft border */
    --shadow-light: rgba(255, 107, 53, 0.1);  /* Orange shadow */
    --shadow-dark: rgba(44, 24, 16, 0.15);  /* Brown shadow */
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

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

/* AI-inspired animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 140, 66, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 169, 71, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 10%, rgba(255, 107, 53, 0.04) 0%, transparent 50%);
    z-index: -2;
    animation: floatBackground 20s ease-in-out infinite;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(255, 107, 53, 0.03) 35px, rgba(255, 107, 53, 0.03) 70px),
        repeating-linear-gradient(-45deg, transparent, transparent 35px, rgba(255, 140, 66, 0.02) 35px, rgba(255, 140, 66, 0.02) 70px);
    z-index: -1;
    opacity: 0.5;
    animation: meshMove 30s linear infinite;
}

@keyframes floatBackground {
    0%, 100% { transform: scale(1) rotate(0deg); }
    33% { transform: scale(1.05) rotate(1deg); }
    66% { transform: scale(0.95) rotate(-1deg); }
}

@keyframes meshMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(70px, 70px); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Neural Network Background Pattern */
@keyframes neuralPulse {\n    0%, 100% { opacity: 0.3; }\n    50% { opacity: 0.6; }\n}\n\n.neural-bg {\n    position: fixed;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    z-index: -3;\n    opacity: 0.4;\n    background-image: \n        radial-gradient(circle at 25% 25%, rgba(255, 107, 53, 0.15) 2px, transparent 2px),\n        radial-gradient(circle at 75% 75%, rgba(255, 140, 66, 0.15) 2px, transparent 2px),\n        radial-gradient(circle at 50% 50%, rgba(255, 169, 71, 0.1) 1px, transparent 1px);\n    background-size: 50px 50px, 50px 50px, 25px 25px;\n    animation: neuralPulse 8s ease-in-out infinite;\n}\n\n/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 248, 240, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: var(--transition-normal);
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: var(--transition-normal);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255, 140, 66, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 20%, rgba(255, 169, 71, 0.08) 0%, transparent 30%);
    pointer-events: none;
    animation: pulseGradient 8s ease-in-out infinite;
}

@keyframes pulseGradient {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    min-height: 100vh;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.accent {
    color: var(--accent-primary);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(255, 107, 53, 0.2));
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
}

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

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.2);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.code-animation {
    width: 300px;
    height: 200px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 248, 240, 0.9));
    border-radius: var(--radius-xl);
    border: 2px solid var(--accent-primary);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
}

.code-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.2), transparent);
    animation: scan 3s infinite;
}

.code-line {
    height: 16px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-tertiary));
    border-radius: var(--radius-sm);
    opacity: 0;
    animation: typewriter 2s infinite;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.code-line:nth-child(1) { width: 80%; animation-delay: 0s; }
.code-line:nth-child(2) { width: 60%; animation-delay: 0.5s; }
.code-line:nth-child(3) { width: 90%; animation-delay: 1s; }
.code-line:nth-child(4) { width: 40%; animation-delay: 1.5s; }

@keyframes scan {
    0% { left: -100%; }
    100% { left: 100%; }
}

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

/* Section Styles */
.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.skills {
    margin-top: var(--spacing-2xl);
}

.skills h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.skill-tag {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 140, 66, 0.05));
    color: var(--accent-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: 1px solid rgba(255, 107, 53, 0.3);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.2);
}

/* Projects Section */
.projects {
    padding: var(--spacing-3xl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 240, 0.95));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.1);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-tertiary));
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.2);
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(255, 245, 230, 1));
}

.project-header {
    margin-bottom: var(--spacing-lg);
}

.project-header h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: linear-gradient(135deg, rgba(255, 140, 66, 0.15), rgba(255, 169, 71, 0.1));
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

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

.project-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Expertise Section */
.expertise {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.expertise-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 240, 0.95));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.08);
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 107, 53, 0.2);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(255, 245, 230, 1));
}

.expertise-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.expertise-card h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.expertise-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: var(--font-size-sm);
}

/* Innovation Section */
.innovation {
    padding: var(--spacing-3xl) 0;
}

.innovation-content {
    max-width: 1000px;
    margin: 0 auto;
}

.innovation-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.highlight-card {
    background: linear-gradient(135deg, rgba(255, 140, 66, 0.08), rgba(255, 169, 71, 0.05));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 107, 53, 0.2);
    transition: var(--transition-normal);
    position: relative;
}

.highlight-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.15);
    background: linear-gradient(135deg, rgba(255, 140, 66, 0.12), rgba(255, 169, 71, 0.08));
}

.highlight-card h3 {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
}

.highlight-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.contact-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
    max-width: 500px;
    margin: 0 auto;
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 248, 240, 0.9));
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-normal);
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.08);
}

.contact-link:hover {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    color: white;
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.25);
}

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

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-top: 2px solid var(--accent-primary);
    box-shadow: 0 -2px 10px rgba(255, 107, 53, 0.1);
}

.footer p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: 0 10px 27px var(--shadow-dark);
        border-top: 1px solid var(--border-color);
        padding: var(--spacing-lg) 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .code-animation {
        width: 250px;
        height: 150px;
    }

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

    .interests-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .contact-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .hero-container {
        padding: 0 var(--spacing-md);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .contact-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .fade-in {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }
}