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

:root {
    /* Apple-Inspired Color Palette */
    --primary-color: #007AFF;
    --primary-hover: #0056CC;
    --secondary-color: #5856D6;
    --secondary-hover: #4F46E5;
    --accent-color: #FF9500;
    --accent-hover: #E6850E;
    --success-color: #34C759;
    --warning-color: #FF3B30;
    
    /* Apple UI Neutral Colors */
    --background-primary: #FFFFFF;
    --background-secondary: #F2F2F7;
    --background-tertiary: #E5E5EA;
    --background-quaternary: #D1D1D6;
    
    /* Apple UI Text Colors */
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-tertiary: #C7C7CC;
    --text-quaternary: #E5E5EA;
    
    /* Apple UI Border Colors */
    --border-light: #E5E5EA;
    --border-medium: #D1D1D6;
    --border-dark: #C7C7CC;
    
    /* Apple UI Gradients */
    --gradient-primary: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    --gradient-secondary: linear-gradient(135deg, #F2F2F7 0%, #E5E5EA 100%);
    --gradient-accent: linear-gradient(135deg, #FF9500 0%, #FF3B30 100%);
    
    /* 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;
    
    /* 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;
    
    /* Apple UI Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand .brand-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

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

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

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

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

.nav-socials {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    background: var(--background-tertiary);
    color: var(--text-secondary);
    transition: var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.social-icon {
    width: 20px;
    height: 20px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: var(--spacing-3xl);
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 50%, var(--background-tertiary) 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    text-align: center;
    width: 100%;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-greeting {
    display: block;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

.hero-name {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}



/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    min-height: 48px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #0056CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--background-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--background-quaternary);
    transform: translateY(-2px);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text {
    padding-right: var(--spacing-xl);
}

.about-paragraph {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.highlight {
    color: var(--primary-color);
    font-weight: 600;
}

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

.about-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

/* Experience Section */
.experience {
    padding: var(--spacing-3xl) 0;
    background: var(--background-tertiary);
}

.experience-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.experience-card {
    background: var(--background-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.experience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.experience-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.company-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--background-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.experience-title .position {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.experience-title .company {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.experience-title .location {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.experience-list {
    list-style: none;
    padding-left: 0;
}

.experience-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.experience-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: var(--font-size-lg);
}

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

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

.project-card {
    background: var(--background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.project-card:hover .project-screenshot {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-xl);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.project-tech {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.project-link:hover {
    color: #0056CC;
}

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

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

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

.contact-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0;
    background: var(--text-primary);
    color: white;
    text-align: center;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }
    
    .hero {
        min-height: 100vh;
        padding-top: 100px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .about-text {
        padding-right: 0;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding-top: 100px;
        min-height: 100vh;
    }
    
    .hero-name {
        font-size: var(--font-size-4xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .experience-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-name {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .experience-card {
        padding: var(--spacing-lg);
    }
    
    .project-content {
        padding: var(--spacing-lg);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Focus states for accessibility */
.btn:focus,
.nav-link:focus,
.social-link:focus,
.project-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Light mode only - Apple-inspired design */