/* ==========================================================================
   Design System & Base Styles
   ========================================================================== */

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

:root {
    /* Colors from design system */
    --color-black: #000000;
    --color-charcoal: #1a1a1a;
    --color-white: #ffffff;
    --color-light-gray: #f5f5f5;
    --color-medium-gray: #e0e0e0;
    --color-dark-gray: #333333;
    --color-text-gray: #666666;
    
    /* Typography */
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 48px;
    --font-size-5xl: 64px;
    --font-size-6xl: 96px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    --spacing-5xl: 128px;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-strong: 0 10px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Animation durations */
    --animation-duration-fast: 0.15s;
    --animation-duration-normal: 0.3s;
    --animation-duration-slow: 0.5s;
    --animation-duration-slower: 0.8s;
    --animation-duration-slowest: 1.2s;
    
    /* Easing functions */
    --ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
    --ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Layout properties */
    --header-height: 80px;
    --header-height-mobile: 150px; /* Significantly increased to handle navigation wrapping */
    --header-height-small-mobile: 160px; /* Extra buffer for very small screens */
    --safe-area-top: env(safe-area-inset-top, 0px);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}


/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-black), var(--color-charcoal));
    z-index: 1000;
    transition: width 0.1s ease-out;
}


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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 2rem;
    padding-top: calc(1rem + var(--safe-area-top)); /* Account for notch */
    transform: translateY(-100%);
    animation: slideDown 0.6s ease forwards;
    animation-delay: 0.2s;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-black);
    text-decoration: none;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.4s;
}

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

.nav-links li {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.nav-links li:nth-child(1) { animation-delay: 0.5s; }
.nav-links li:nth-child(2) { animation-delay: 0.6s; }
.nav-links li:nth-child(3) { animation-delay: 0.7s; }
.nav-links li:nth-child(4) { animation-delay: 0.8s; }
.nav-links li:nth-child(5) { animation-delay: 0.9s; }
.nav-links li:nth-child(6) { animation-delay: 1.0s; }

.nav-links a {
    color: var(--color-dark-gray);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-normal);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-black);
    transition: width var(--transition-normal);
}

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

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

/* Section Base Styles */
.section {
    padding: var(--spacing-5xl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--color-black);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
}

.section-dark {
    background: var(--color-black);
    color: var(--color-white);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: rgba(245, 245, 245, 0.20);
    position: relative;
    overflow: hidden;
}

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

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(50px);
    animation: heroSlideUp 1s var(--transition-bounce) forwards;
    animation-delay: 1s;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--color-text-gray);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    animation: heroSlideUp 1s var(--transition-bounce) forwards;
    animation-delay: 1.3s;
    /* Fixed height to prevent layout shifts during typing animation */
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Prevent text wrapping to maintain consistent layout */
    white-space: nowrap;
    overflow: hidden;
    /* Ensure long text doesn't break layout on small screens */
    min-width: 0;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-gray);
    max-width: 600px;
    margin: 0 auto 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: heroSlideUp 1s var(--transition-bounce) forwards;
    animation-delay: 1.6s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    animation: heroButtonIn 1s var(--transition-bounce) forwards;
    animation-delay: 1.9s;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

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

.cta-button:hover::before {
    left: 100%;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 2.5s;
    text-align: center;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--color-text-gray);
    margin: 0 auto 10px;
    animation: bounce 2s infinite;
}


/* About Section */
.about {
    padding: 6rem 2rem;
    background: rgba(255, 255, 255, 0.50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
    margin-top: 3rem;
}

.about-image {
    position: relative;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s var(--transition-smooth);
}

.about-image::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    background: var(--color-black);
    opacity: 0.5;
    z-index: -1;
    transition: transform var(--transition-normal);
    border-radius: var(--border-radius-lg);
}

.about-image:hover::before {
    transform: translate(10px, 10px);
}

.placeholder-image {
    width: 100%;
    height: 400px;
    background: var(--color-light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-gray);
    font-size: 1.1rem;
    transition: transform var(--transition-normal);
}

.profile-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    transition: transform var(--transition-normal);
}

.about-image:hover .placeholder-image {
    transform: translate(-5px, -5px);
}

.about-image:hover .profile-image {
    transform: translate(-5px, -5px);
}

.about-text {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s var(--transition-smooth);
}

.about-text h3 {
    font-size: 1.5rem;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--color-text-gray);
    margin-bottom: 1.5rem;
}

.about-text .highlight {
    color: var(--color-black);
    font-weight: 600;
}

.contact-details {
    background: var(--color-light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-xl);
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.contact-details p {
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-xs);
}

/* Experience Section */
.experience {
    background: rgba(245, 245, 245, 0.5);
    padding: 6rem 2rem;
}

.timeline {
    position: relative;
    margin-top: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-medium-gray);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s var(--transition-smooth);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: calc(50% + 2rem);
    text-align: left;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: calc(50% + 2rem);
    text-align: left;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--color-black);
    border-radius: 50%;
    transform: translateX(-50%);
    transition: all var(--transition-normal);
}

.timeline-item:hover .timeline-marker {
    transform: translateX(-50%) scale(1.5);
    background: var(--color-white);
    box-shadow: 0 0 0 4px var(--color-black);
}

.timeline-content {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.timeline-date {
    color: var(--color-black);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--color-text-gray);
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-description {
    color: var(--color-text-gray);
    line-height: 1.6;
}

.timeline-description ul {
    margin-top: 0.5rem;
    padding-left: 1rem;
}

.timeline-description li {
    margin-bottom: 0.5rem;
}


/* Projects Section */
.projects {
    background: rgba(245, 245, 245, 0.5);
    padding: 6rem 2rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.project-image {
    width: 100%;
    height: 200px;
    background: var(--color-medium-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-gray);
    font-size: 1rem;
    overflow: hidden;
    position: relative;
}

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

.project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover .project-image::after {
    opacity: 1;
}

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

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.project-category {
    color: var(--color-text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--color-text-gray);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Publications Section */
.publications {
    padding: 6rem 2rem;
    background: rgba(255, 255, 255, 0.5);
}

.publication-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
}

.publication-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.publication-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.publication-citation {
    background: var(--color-light-gray);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-gray);
}

.publication-abstract {
    margin-bottom: 1.5rem;
}

.publication-abstract h4 {
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.publication-abstract p {
    color: var(--color-text-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.download-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-normal);
}

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

/* Contact Section */
.contact {
    background: rgba(26, 26, 26, 0.7);
    color: var(--color-white);
    padding: 6rem 2rem;
    text-align: center;
}

.contact .section-title {
    color: var(--color-white);
}

.contact-form {
    max-width: 600px;
    margin: 3rem auto 0;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
}

.form-group {
    margin-bottom: 2rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-white);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-white);
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    color: var(--color-white);
    transition: border-bottom-color var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--color-white);
    border-bottom-width: 2px;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

.submit-btn {
    background: var(--color-white);
    color: var(--color-charcoal);
    border: none;
    padding: 1rem 3rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--color-black);
    border-radius: 50%;
    transition: all var(--transition-normal);
    transform: translate(-50%, -50%);
}

.submit-btn:hover::before {
    width: 300px;
    height: 300px;
}

.submit-btn:hover {
    color: var(--color-white);
    transform: translateY(-2px);
}

.submit-btn span {
    position: relative;
    z-index: 1;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    list-style: none;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-white);
    color: var(--color-charcoal);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Social Icon SVGs */
.social-icon {
    width: 22px;
    height: 22px;
    fill: currentColor;
    transition: all var(--transition-normal);
}

/* Animations */
@keyframes slideDown {
    to { transform: translateY(0); }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroSlideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroButtonIn {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Scroll Reveal Classes */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-smooth),
                transform 0.8s var(--transition-smooth);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 1 !important;
    transform: translateX(0) !important;
}

.reveal-right {
    opacity: 1 !important;
    transform: translateX(0) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        padding: 1rem;
        padding-top: calc(1rem + var(--safe-area-top));
    }
    
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    /* Responsive adjustments for hero subtitle on mobile */
    .hero-subtitle {
        height: 2.8rem;
        font-size: clamp(1rem, 4vw, 1.4rem);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 3rem;
        margin-right: 0;
        text-align: left;
    }
    
    .timeline-marker {
        left: 1rem;
    }
    
    /* Ensure timeline items are visible on mobile even if scroll animation doesn't trigger */
    .timeline-item {
        opacity: 1 !important;
        transform: translateY(0) !important;
        animation: none; /* Disable any conflicting animations */
    }
    
    /* Ensure experience section itself is visible on mobile */
    .experience.scroll-reveal {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
    
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Extra small screens - ensure very long titles still fit */
@media (max-width: 480px) {
    .hero-subtitle {
        height: 2.5rem;
        font-size: clamp(0.9rem, 5vw, 1.2rem);
        /* Allow slight padding for very tight spaces */
        padding: 0 var(--spacing-sm);
    }
    
    /* Extra space for GoL panel if navigation wraps on very small screens */
    .nav-links {
        flex-wrap: wrap;
    }
    
    /* Ensure timeline items are visible on small screens */
    .timeline-item {
        opacity: 1 !important;
        transform: translateY(0) !important;
        animation: none; /* Disable any conflicting animations */
    }
    
    /* Ensure experience section itself is visible on small screens */
    .experience.scroll-reveal {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
}

/* No JavaScript fallback - ensure timeline items and experience section are visible */
.no-js .timeline-item,
.no-js .experience.scroll-reveal {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   Conway's Game of Life Background
   ========================================================================== */

/* Game of Life Canvas - Positioned as subtle background */
#gameCanvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none; /* Canvas should not intercept pointer events */
    background: transparent;
    opacity: 1.0;
}

/* Game of Life Panel - Top-left floating panel */
.gol-panel {
    position: fixed;
    top: calc(var(--header-height) + var(--safe-area-top));
    left: 2rem;
    z-index: 500; /* Increased to ensure visibility above background elements */
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    box-shadow: var(--shadow-lg);
    min-width: 240px;
    max-width: 280px;
    opacity: 0.9;
    transition: all var(--transition-normal), border-radius var(--transition-normal), min-width var(--transition-normal), max-width var(--transition-normal);
}

/* Pill-shaped collapsed state */
.gol-panel.collapsed {
    border-radius: 50px;
    min-width: 200px;
    max-width: 250px;
}

.gol-panel:hover {
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
}

/* Panel Header with Toggle */
.gol-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    user-select: none;
}

.gol-panel-header h4 {
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin: 0;
}

.gol-toggle-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50px;
    transition: all var(--transition-fast);
    font-size: var(--font-size-base);
    line-height: 1;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.gol-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

.gol-toggle-icon {
    transition: transform var(--transition-normal);
}

.gol-panel.collapsed .gol-toggle-icon {
    transform: rotate(180deg);
}

/* Panel Content */
.gol-panel-content {
    padding: 0 var(--spacing-md) var(--spacing-sm);
    transition: max-height var(--transition-normal), 
                opacity var(--transition-normal), 
                padding var(--transition-normal),
                transform var(--transition-normal);
    overflow: hidden;
    max-height: 500px; /* Set a reasonable max-height for expanded state */
    opacity: 1;
    transform: translateY(0);
}

.gol-panel.collapsed .gol-panel-content {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    transform: translateY(-10px);
}

/* Statistics Section */
.gol-stats {
    margin-bottom: var(--spacing-md);
}

.gol-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    padding: 2px 0;
}

.gol-stat-label {
    color: var(--color-medium-gray);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.gol-stat-value {
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: 'SF Mono', Consolas, monospace;
}

/* Controls Section */
.gol-controls {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.gol-control-button {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(26, 26, 26, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal), box-shadow var(--transition-normal);
    font-size: var(--font-size-xs);
    font-weight: 500;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.gol-control-button:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3), 0 0 40px rgba(255, 255, 255, 0.1);
}

.gol-control-button:active {
    transform: translateY(0px) scale(0.98);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2), 0 0 30px rgba(255, 255, 255, 0.05);
}

/* Section Titles */
.gol-section-title {
    display: block;
    color: var(--color-medium-gray);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

/* Patterns Section */
.gol-patterns {
    margin-bottom: var(--spacing-md);
}

.gol-pattern-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
}

.gol-pattern-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(32, 178, 170, 0.2);
    border: 1px solid rgba(32, 178, 170, 0.4);
    color: var(--color-white);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal), box-shadow var(--transition-normal);
    font-size: 10px;
    font-weight: 500;
    font-family: inherit;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.gol-pattern-button:hover {
    background: rgba(32, 178, 170, 0.4);
    border-color: rgba(32, 178, 170, 0.6);
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(32, 178, 170, 0.5), 0 0 40px rgba(32, 178, 170, 0.3);
}

.gol-pattern-button:active {
    transform: translateY(0px) scale(0.98);
    box-shadow: 0 0 15px rgba(32, 178, 170, 0.4), 0 0 30px rgba(32, 178, 170, 0.2);
}

/* Info Section */
.gol-info p {
    color: var(--color-medium-gray);
    font-size: 10px;
    line-height: 1.3;
    margin-bottom: 2px;
}

.gol-info p:last-child {
    margin-bottom: 0;
}

/* Responsive adjustments for Game of Life elements */
@media (max-width: 768px) {
    .gol-panel {
        left: 1rem;
        right: 1rem;
        min-width: auto;
        max-width: none;
        top: calc(var(--header-height-mobile) + var(--safe-area-top) + 0.25rem);
    }
    
    .gol-panel.collapsed {
        left: 1rem;
        right: auto;
        min-width: 180px;
        max-width: 220px;
        top: calc(var(--header-height-mobile) + var(--safe-area-top) + 0.25rem);
    }
    
    .gol-panel-header {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .gol-panel-content {
        padding: 0 var(--spacing-sm) var(--spacing-xs);
    }
    
    .gol-pattern-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xs);
    }
    
    .gol-controls {
        flex-direction: column;
        gap: 2px;
    }
    
    .gol-control-button {
        flex: none;
        font-size: 10px;
        padding: 2px var(--spacing-xs);
    }
}

/* Additional mobile breakpoints for Game of Life positioning */
@media (max-width: 480px) {
    .gol-panel { /* Extra buffer for very small screens */
        left: 0.5rem;
        right: 0.5rem;
    }
    
    .gol-panel.collapsed {
        left: 0.5rem;
        min-width: 160px;
        max-width: 200px;
    }
}

@media (min-width: 481px) and (max-width: 667px) {
    .gol-panel {
        top: calc(var(--header-height-mobile) + var(--safe-area-top) + 0.5rem); /* Medium mobile screens with buffer */
    }
    
    .gol-panel.collapsed {
        top: calc(var(--header-height-mobile) + var(--safe-area-top) + 0.5rem);
    }
}

/* iPhone Pro Max and similar large mobile screens */
@media (min-width: 668px) and (max-width: 768px) {
    .gol-panel {
        top: calc(var(--header-height-mobile) + var(--safe-area-top)); /* Standard mobile height for larger phones */
    }
    
    .gol-panel.collapsed {
        top: calc(var(--header-height-mobile) + var(--safe-area-top));
    }
}

/* Landscape orientation on mobile - header might be more compact */
@media (max-width: 768px) and (orientation: landscape) {
    .gol-panel {
        top: calc(100px + var(--safe-area-top)); /* Conservative space for landscape with potential wrapping */
    }
    
    .gol-panel.collapsed {
        top: calc(100px + var(--safe-area-top));
    }
}

/* Accessibility - Reduced motion for Game of Life */
@media (prefers-reduced-motion: reduce) {
    #gameCanvas {
        opacity: 0.15;
    }
}

/* Hide Game of Life elements when in high contrast mode */
@media (prefers-contrast: high) {
    #gameCanvas,
    .gol-panel {
        display: none;
    }
}

/* Privacy Policy Styles */
.privacy-policy-container {
    min-height: 100vh;
    padding-top: calc(var(--header-height) + 2rem);
    position: relative;
    z-index: 10;
}

.privacy-policy-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.privacy-policy-header {
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: var(--spacing-lg);
}

.privacy-policy-header h1 {
    color: var(--color-black);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.last-updated {
    color: var(--color-gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.intro {
    font-size: var(--font-size-lg);
    color: var(--color-dark-gray);
    margin: 0;
}

.table-of-contents {
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.table-of-contents h2 {
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.table-of-contents ol {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.table-of-contents li {
    margin-bottom: var(--spacing-xs);
}

.table-of-contents a {
    color: var(--color-dark-gray);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.table-of-contents a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

.privacy-section {
    margin-bottom: var(--spacing-2xl);
    scroll-margin-top: calc(var(--header-height) + 2rem);
}

.privacy-section h2 {
    color: var(--color-black);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.privacy-section h3 {
    color: var(--color-dark-gray);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.privacy-section p {
    margin-bottom: var(--spacing-md);
    color: var(--color-dark-gray);
}

.privacy-section ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.privacy-section li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark-gray);
}

.privacy-section a {
    color: var(--color-accent);
    text-decoration: none;
}

.privacy-section a:hover {
    text-decoration: underline;
}

.contact-info {
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.privacy-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-accent);
    text-align: center;
}

.back-to-portfolio {
    display: inline-block;
    background: var(--color-dark-gray);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    text-decoration: none;
    margin-top: var(--spacing-md);
    transition: all var(--transition-normal);
}

.back-to-portfolio:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Mobile responsive for privacy policy */
@media (max-width: 768px) {
    .privacy-policy-container {
        padding-top: calc(var(--header-height-mobile) + 1rem);
    }
    
    .privacy-policy-content {
        margin: var(--spacing-md) var(--spacing-sm);
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .table-of-contents {
        padding: var(--spacing-md);
    }
    
    .table-of-contents ol {
        padding-left: var(--spacing-md);
    }
}