/* CSS Variables for Apple-style Dark Mode */
:root {
    --bg-color: #000000;
    --surface-color: #1c1c1e; /* Apple dark mode card color */
    --surface-color-hover: #2c2c2e;
    --text-primary: #f5f5f7; /* Apple text color */
    --text-secondary: #86868b;
    --accent-color: #0a84ff; /* Apple blue */
    --accent-color-hover: #007aff;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0a84ff, #5e5ce6);
    
    /* Shadows */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-normal: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1); /* Apple-like easing */
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utility Classes */
.text-center { text-align: center; }
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Navigation (Glassmorphism) */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(28, 28, 30, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

#navbar.scrolled {
    padding: 10px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    transition: padding var(--transition-normal);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

/* Layout */
main {
    padding-top: 80px; /* Offset for fixed nav */
}

.section {
    padding: 100px 20px;
}

.section-container {
    max-width: 1000px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 40px;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px; /* Apple pill shape */
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    transform: scale(1.05);
    background-color: #ffffff;
}

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

.btn-secondary:hover {
    background-color: var(--surface-color-hover);
    transform: scale(1.05);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.hero-content {
    max-width: 1000px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 15px;
}

.hero-image-container {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.hero-image {
    width: 350px;
    height: 350px;
    object-fit: cover;
    border-radius: 50%; /* Circular profile pic */
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* About Section */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    max-width: 800px;
}

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.skill-tag {
    background-color: var(--surface-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.skill-tag:hover {
    transform: translateY(-2px);
    background-color: var(--surface-color-hover);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--surface-color);
    border-radius: 24px; /* Apple-like rounded corners */
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    background-color: var(--surface-color-hover);
}

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

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.project-info {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tech span {
    font-size: 0.8rem;
    color: var(--accent-color);
    background-color: rgba(10, 132, 255, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

.project-link {
    font-weight: 600;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
}

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

/* Contact Section */
.contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
}

.contact-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-actions {
    margin-bottom: 50px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Footer */
footer {
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Reveal Animations */
.section-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.section-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
        gap: 30px;
    }
    
    .hero-image-container {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-image {
        width: 250px;
        height: 250px;
    }
    
    .nav-links {
        display: none; /* In a real app, you'd add a hamburger menu here */
    }
}