:root {
    --primary-color: #000000;
    --accent-color: #2196f3;
    --text-color: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --bg-overlay: rgba(0, 0, 0, 0.9);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.8;
    overflow-x: hidden;
    font-weight: var(--font-weight-regular);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Background Slideshow */
.background-slideshow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.background-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.background-slide.active {
    opacity: 0.3;
    background-color: black;
}


/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    opacity: 1;
}

p {
    margin: 0;
    font-size: 16px;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    opacity: 1;
}

/* Entrance Riddle */
.entrance-riddle {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.entrance-riddle.hidden {
    opacity: 0;
    pointer-events: none;
}

.riddle-box {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-overlay);
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.riddle-box h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-black);
    color: var(--accent-color);
}

.riddle-text {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-light);
    max-width: 800px;
    line-height: 1.4;
}

.riddle-options {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    max-width: 800px;
}

.riddle-options button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1.25rem;
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition-standard);
    min-width: 200px;
    font-weight: var(--font-weight-medium);
}

.riddle-options button:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

/* Main Content */
.content-container {
    min-height: 100vh;
    opacity: 0;
    transition: var(--transition-standard);
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.content-container.active {
    opacity: 1;
}

/* Bento Grid Layout */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.bento-box {
    background: linear-gradient(
        145deg,
        rgba(33, 150, 243, 0.05) 0%,
        rgba(33, 150, 243, 0.02) 100%
    );
    border: 1px solid rgba(33, 150, 243, 0.1);
    border-radius: 24px;
    padding: var(--spacing-lg);
    transition: var(--transition-standard);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.bento-box:hover {
    transform: translateY(-4px) scale(1.02);
    background: linear-gradient(
        145deg,
        rgba(33, 150, 243, 0.1) 0%,
        rgba(33, 150, 243, 0.05) 100%
    );
    box-shadow: 
        0 8px 32px rgba(33, 150, 243, 0.1),
        0 4px 8px rgba(0, 0, 0, 0.1);
}

.bento-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: var(--transition-standard);
}

.bento-box:hover::before {
    opacity: 1;
}

.bento-box::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 2px;
    background: linear-gradient(
        145deg,
        transparent,
        transparent,
        rgba(33, 150, 243, 0.3)
    );
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-standard);
}

.bento-box:hover::after {
    opacity: 1;
}

.bento-box.large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-box.medium {
    grid-column: span 2;
}

.bento-box h2 {
    font-size: clamp(1.5rem, 2vw, 2rem);
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.bento-box p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.bento-box .achievements {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.bento-box .achievements li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.bento-box .achievements li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: var(--font-weight-bold);
    opacity: 0.8;
    transition: var(--transition-standard);
}

.bento-box:hover .achievements li::before {
    opacity: 1;
    transform: translateX(2px);
}

.bento-box .company {
    color: var(--accent-color);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.bento-box .duration {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

@media (max-width: 1200px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-box.large,
    .bento-box.medium {
        grid-column: span 1;
        grid-row: span 1;
    }
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-black);
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    opacity: 1;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    background: #000000;
}

.scrolling-grid {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    height: 100vh;
    overflow: hidden;
    max-width: 1400px;
    margin: 0 auto;
}

.grid-column {
    flex: 1;
    min-width: 280px;
    overflow: hidden;
    position: relative;
}

.column-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    animation: scrollUp 180s linear infinite;
    will-change: transform;
}

.grid-column:nth-child(even) .column-content {
    animation: scrollDown 180s linear infinite;
}

.grid-column:nth-child(3) .column-content {
    animation-delay: -45s;
}

.grid-column:nth-child(4) .column-content {
    animation-delay: -90s;
}

.grid-column img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(1.4) contrast(1.2);
}

.grid-column img:hover {
    transform: scale(1.03);
    filter: brightness(1.5) contrast(1.3);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

@keyframes scrollUp {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-50%);
    }
}

@keyframes scrollDown {
    0% {
        transform: translateY(-50%);
    }
    100% {
        transform: translateY(0);
    }
}

.hero-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    transition: opacity 0.5s ease;
}

.mega-text {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: var(--font-weight-black);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    opacity: 0;
    animation: textReveal 1s ease forwards 0.5s;
}

.pronunciation {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: textReveal 1s ease forwards 0.8s;
}

.gradient-text {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--accent-color);
    text-shadow: 2px 2px 8px #000000;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    opacity: 0;
    animation: textReveal 1s ease forwards 1.1s;
}

.hero-content .lead-text {
    font-size: clamp(1rem, 2vw, 1.25rem);
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-color);
    text-shadow: 2px 2px 8px #000000;
    opacity: 0;
    animation: textReveal 1s ease forwards 1.4s;
}

@keyframes textReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-bold);
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
    opacity: 1;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.skill-tags span {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(33, 150, 243, 0.1);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition-standard);
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
}

.skill-tags span:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline .glass-card {
    background: rgba(33, 150, 243, 0.05);
    border: 1px solid rgba(33, 150, 243, 0.2);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-standard);
}

.timeline .glass-card:hover {
    transform: translateX(10px);
    background: rgba(33, 150, 243, 0.1);
}

.timeline h3 {
    color: #FFFFFF;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    text-shadow: 2px 2px 8px #000000;
    opacity: 1;
}

.timeline .company {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    font-size: 16px;
}

.timeline .duration {
    color: #FFFFFF;
    font-size: 16px;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 8px #000000;
}

.timeline ul {
    list-style: none;
}

.timeline li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
    opacity: 1;
    font-size: 16px;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px #000000;
}

.timeline li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* Canvas Section */
.create {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    background: #000000;
    padding: var(--spacing-lg) 0;
}

.create .section-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.create .section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.canvas-container {
    background: #F5F5F5;
    padding: var(--spacing-md);
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.canvas-tools {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.color-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.color-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-standard);
    padding: 0;
}

.color-btn:hover {
    transform: scale(1.1);
}

.color-btn.active {
    box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--accent-color);
}

.action-buttons {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

.action-buttons button {
    padding: var(--spacing-xs) var(--spacing-md);
    background: #000000;
    border: none;
    color: white;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-standard);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.action-buttons button:hover {
    background: #333333;
    transform: translateY(-2px);
}

#drawing-canvas {
    width: 100%;
    height: 400px;
    background: #FFFFFF;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    background: #000000;
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-top: var(--spacing-lg);
}

footer .section-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.social-link {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: var(--transition-standard);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--accent-color);
    border-radius: 50px;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.social-link:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
        --spacing-sm: 0.75rem;
        --spacing-xs: 0.375rem;
    }

    .section-content {
        padding: var(--spacing-md) 0;
    }

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

    .timeline .glass-card {
        margin-left: var(--spacing-xs);
        margin-right: var(--spacing-xs);
    }

    .canvas-tools {
        flex-direction: column;
        align-items: stretch;
    }

    .canvas-tools input[type="color"] {
        width: 100%;
        height: 40px;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}