/* Base styles */
:root {
    --primary: #0066FF;
    --primary-light: #0066FF;
    --dark: #1f2937;
    --gray: #4b5563;
    --light: #f3f4f6;
    --white: #ffffff;
    --bg-dark: #111827;
    --panel-dark: #1f2937;
    --text-dark: #e5e7eb;
    --transition-speed: 0.3s;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
    --border-radius-sm: 0.75rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --container-width: 72rem;
}

[data-theme="dark"] {
    --primary: #1e40af;
    --primary-light: #2563eb;
    --dark: #e5e7eb;
    --gray: #9ca3af;
    --light: #374151;
    --white: #111827;
    --bg-dark: #111827;
    --panel-dark: #1f2937;
    --text-dark: #e5e7eb;
}

/* Base styles */
body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary);
    color: var(--dark);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-speed) ease,
                color var(--transition-speed) ease;
}

/* Common animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes rainbow {
    from { background-position: 0% 50%; }
    to { background-position: 200% 50%; }
}

/* Common transitions */
.transition-base {
    transition: all var(--transition-speed) ease;
}

/* Layout */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    background: var(--primary);
}

.section-content {
    max-width: var(--container-width);
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1),
                transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: opacity, transform;
}

.section-content.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation */
.nav-container {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    background-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    position: relative;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo img {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    margin-left: auto;
    margin-right: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--white);
    transition: width var(--transition-speed) ease;
}

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

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-menu span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--white);
    border-radius: 3px;
    transition: all var(--transition-speed) ease;
}

.hamburger-menu.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.hamburger-menu.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--white);
    font-size: 1.25rem;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-speed) ease;
    position: relative;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.theme-toggle input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-toggle i {
    position: absolute;
    transition: opacity var(--transition-speed) ease;
    font-size: 21px;
}

.theme-toggle .fa-sun { 
    opacity: 0; 
}

.theme-toggle .fa-moon { 
    opacity: 1; 
}

[data-theme="dark"] .theme-toggle .fa-sun { 
    opacity: 1; 
}

[data-theme="dark"] .theme-toggle .fa-moon { 
    opacity: 0; 
}

/* Hero Section */
.hero {
    padding: 0;
    background: var(--primary);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.hero-content {
    max-width: var(--container-width);
    width: 100%;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.hero-title {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: var(--spacing-lg) 0;
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    will-change: opacity, transform;
}

.hero-subtitle {
    font-size: clamp(1rem, 4vw, 1.75rem);
    color: var(--white);
    opacity: 0;
    margin: var(--spacing-lg) 0;
    animation: fadeIn 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.2s forwards;
    will-change: opacity, transform;
    max-width: min(90%, 700px);
    line-height: 1.4;
    font-family: 'Source Code Pro', monospace;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-shadow: var(--shadow-sm);
}

.cta-button {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    font-weight: bold;
    transition: all var(--transition-speed) ease;
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.4s forwards;
    will-change: opacity, transform;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* About Section */
.about-container {
    width: 100%;
    margin-bottom: var(--spacing-xl);
}

.about-content {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.about-text-container {
    flex: 1;
    max-width: 800px;
}

.about-text {
    line-height: 1.6;
}

.headshot-container {
    flex-shrink: 0;
    width: 300px;
    height: 300px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.skills-section {
    width: 100%;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--light);
}

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skill-tag {
    background-color: var(--light);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 9999px;
    font-size: 0.9rem;
    color: var(--dark);
    transition: all var(--transition-speed) ease;
}

.skill-tag:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.project-card {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: all var(--transition-speed) ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1),
                transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: opacity, transform;
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-content {
    padding: var(--spacing-lg);
    position: relative;
}

.project-logo {
    height: 48px;
    width: auto;
    position: absolute;
    top: 2.5rem;
    right: var(--spacing-lg);
    opacity: 0.7;
    filter: brightness(0) saturate(100%) invert(48%) sepia(90%) saturate(2644%) hue-rotate(199deg) brightness(103%) contrast(107%);
    transition: all var(--transition-speed) ease;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--spacing-xs);
    padding-right: 60px;
}

.project-subtitle {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.project-description {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

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

.project-tag {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 9999px;
    font-size: 0.875rem;
    transition: all var(--transition-speed) ease;
}

.project-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 106, 255, 0.2);
}

/* Education Section */
.education-item {
    border-left: 4px solid #006aff;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1),
                transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: opacity, transform;
}

.education-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.education-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: var(--spacing-xs);
}

.education-degree {
    color: #4b5563;
    margin-bottom: var(--spacing-xs);
}

.education-date {
    color: #6b7280;
    margin-bottom: var(--spacing-md);
}

.education-description {
    color: #4b5563;
    line-height: 1.6;
}

/* Contact Section */
.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-speed) ease;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1),
                transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: opacity, transform;
}

.contact-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.contact-text {
    font-size: 1.2rem;
    color: var(--dark);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.linkedin-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: #0077B5;
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--shadow-md);
}

.linkedin-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    background-color: #006396;
}

.linkedin-button::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19 0h-14c-2.761 0-5 2.239-5 5v14c0 2.761 2.239 5 5 5h14c2.762 0 5-2.239 5-5v-14c0-2.761-2.238-5-5-5zm-11 19h-3v-11h3v11zm-1.5-12.268c-.966 0-1.75-.79-1.75-1.764s.784-1.764 1.75-1.764 1.75.79 1.75 1.764-.783 1.764-1.75 1.764zm13.5 12.268h-3v-5.604c0-3.368-4-3.113-4 0v5.604h-3v-11h3v1.765c1.396-2.586 7-2.777 7 2.476v6.759z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.social-link {
    color: white;
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

.social-link:hover {
    color: #006aff;
}

/* Typing Container */
.typing-container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
    position: relative;
    overflow: visible;
    min-height: 8rem;
}

#dynamic-text {
    text-align: center;
    white-space: pre-wrap;
    font-size: clamp(2rem, 8vw, 6rem);
    line-height: 1.2;
    transition: all var(--transition-speed) ease;
    max-width: 90%;
    position: relative;
    display: inline-block;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--white);
    z-index: 1002;
    transition: width 0.1s ease;
}

.scroll-progress.rainbow {
    background: linear-gradient(
        90deg,
        #ff0000,
        #ff7f00,
        #ffff00,
        #00ff00,
        #0000ff,
        #4b0082,
        #8f00ff
    );
    background-size: 200% 100%;
    animation: rainbow 2s linear infinite;
}

/* Dark Mode Styles */
[data-theme="dark"] .section { 
    background: var(--bg-dark); 
}

[data-theme="dark"] .section-content { 
    background: var(--panel-dark);
    color: var(--text-dark);
}

[data-theme="dark"] .project-card {
    background: var(--panel-dark);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .project-title { 
    color: var(--text-dark); 
}

[data-theme="dark"] .project-subtitle,
[data-theme="dark"] .project-description { 
    color: var(--gray); 
}

[data-theme="dark"] .skill-tag {
    background: var(--light);
    color: var(--text-dark);
}

[data-theme="dark"] .skill-tag:hover {
    background: var(--primary);
    color: var(--white);
}

[data-theme="dark"] .education-item {
    background: var(--panel-dark);
    border-left-color: var(--primary);
}

[data-theme="dark"] .education-title { 
    color: var(--text-dark); 
}

[data-theme="dark"] .education-degree,
[data-theme="dark"] .education-description { 
    color: var(--gray); 
}

[data-theme="dark"] .contact-content {
    background: var(--panel-dark);
    color: var(--text-dark);
}

[data-theme="dark"] .contact-text { 
    color: var(--text-dark); 
}

[data-theme="dark"] .footer { 
    background-color: var(--bg-dark); 
}

/* Mobile Styles */
@media screen and (max-width: 768px) {
    .nav-content {
        padding: var(--spacing-md);
        height: 64px;
    }

    .hamburger-menu {
        display: flex;
        position: absolute;
        left: var(--spacing-md);
        z-index: 1001;
    }

    .nav-logo {
        margin: 0 auto;
    }

    .nav-links {
        margin: 0;
        position: fixed;
        inset: 0;
        width: 100vw;
        height: 100vh;
        background-color: var(--primary);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        transition: all var(--transition-speed) ease;
        padding: 0;
        z-index: 1000;
        visibility: hidden;
        opacity: 0;
    }

    .theme-toggle {
        position: absolute;
        right: var(--spacing-md);
        top: 50%;
        transform: translateY(-50%);
        z-index: 1001;
    }

    .nav-link {
        font-size: 1.5rem;
        color: var(--white);
        text-align: center;
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        padding: var(--spacing-sm) 0;
        margin: 0;
        opacity: 0;
        transform: translateX(-50px);
        transition: none;
    }

    .nav-links.nav-active {
        left: 0;
        visibility: visible;
        opacity: 1;
    }

    .nav-links.nav-active .nav-link {
        opacity: 0;
        transform: translateX(-50px);
    }

    .nav-links.nav-active .nav-link:nth-child(1) { animation: navLinkFade 0.3s ease forwards 0.1s; }
    .nav-links.nav-active .nav-link:nth-child(2) { animation: navLinkFade 0.3s ease forwards 0.2s; }
    .nav-links.nav-active .nav-link:nth-child(3) { animation: navLinkFade 0.3s ease forwards 0.3s; }
    .nav-links.nav-active .nav-link:nth-child(4) { animation: navLinkFade 0.3s ease forwards 0.4s; }

    .hero {
        padding-top: 6rem;
    }

    .hero-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .about-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .about-text-container {
        max-width: 100%;
    }

    .headshot-container {
        width: 200px;
        height: 200px;
        margin: 0 auto;
    }

    .section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .section-content {
        padding: var(--spacing-lg);
    }

    .typing-container {
        padding: 0 var(--spacing-xs);
        min-height: 6rem;
    }

    #dynamic-text {
        font-size: clamp(1.5rem, 6vw, 4rem);
        max-width: 95%;
    }
}

@media screen and (max-width: 480px) {
    .typing-container {
        padding: 0 var(--spacing-xs);
        min-height: 4rem;
    }

    #dynamic-text {
        font-size: clamp(1.25rem, 5vw, 3rem);
        max-width: 100%;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin: var(--spacing-md) 0;
        max-width: min(80%, 300px);
    }

    .cta-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

.typing-text {
    position: relative;
    display: inline-block;
}

.typing-text::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 0;
    height: 100%;
    width: 2px;
    background-color: var(--white);
    animation: blink 0.54s infinite;
    
}

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

/* Dark mode cursor color */
[data-theme="dark"] .typing-text::after {
    background-color: var(--panel-dark);
}