* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Nanum Gothic', sans-serif;
    font-weight: 300;
}

:root {
    --bg-primary: #111111;
    --bg-secondary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --accent: #00ff88;
    --accent-dim: #00cc6a;
}

body {
    font-family: 'Nanum Gothic', sans-serif;
    font-weight: 300;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    min-height: 100vh;
    background: linear-gradient(135deg, #001a0f 0%, #0a0a0a 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loading-content h2 {
    color: #ffffff;
    font-size: 32px;
    margin-bottom: 30px;
    font-weight: 700;
    letter-spacing: 4px;
    font-family: 'Space Mono', monospace;
}

.progress-bar {
    width: 300px;
    height: 8px;
    background: #f0f0f0;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto 15px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00cc6a, #00ff88);
    background-size: 200% 100%;
    border-radius: 10px;
    width: 0%;
    transition: width 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.6);
    animation: shimmer 2s linear infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.progress-text {
    color: #666;
    font-size: 16px;
    font-weight: 500;
}
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, #00ff88, #00cc6a);
    width: 0%;
    z-index: 9998;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #00ff88;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top:hover {
    background: #00cc6a;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 255, 136, 0.6);
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top svg {
    color: #fff;
}

.cursor-trail {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid #00ff88;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.15s ease;
    z-index: 9997;
    mix-blend-mode: difference;
}

.cursor-trail.active {
    opacity: 0.6;
}

@keyframes trail-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.3;
    }
}

.cursor-trail.pulse {
    animation: trail-pulse 1s ease-in-out infinite;
}

body.light-mode {
    --bg-primary: #ffffff;
    --bg-secondary: #f0f0f0;
    --text-primary: #00a86b;
    --text-secondary: #333333;
    --accent: #00a86b;
    --accent-dim: #008756;
}

body.light-mode .hero h1.fade-in {
    color: #000000;
}

.theme-toggle-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
}
.navbar {
    background-color: var(--bg-secondary);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #333;
    transition: transform 0.3s ease-in-out;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.highlight {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 50%, var(--accent) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite, text-glow 2s ease-in-out infinite alternate;
    display: inline-block;
    position: relative;
}

body:not(.light-mode) .highlight {
    filter: drop-shadow(0 0 8px var(--accent)) drop-shadow(0 0 12px var(--accent-dim));
}

body.light-mode .highlight {
    background: linear-gradient(135deg, #00d977 0%, #00a86b 50%, #008756 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0_2px_4px_rgba(0,168,107,0.3));
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes text-glow {
    from {
        filter: brightness(1) drop-shadow(0 0 5px var(--accent-dim));
    }
    to {
        filter: brightness(1.2) drop-shadow(0 0 15px var(--accent));
    }
}

body.light-mode .highlight {
    animation: gradient-shift 3s ease infinite, light-glow 2s ease-in-out infinite alternate;
}

@keyframes light-glow {
    from {
        filter: drop-shadow(0 2px 4px rgba(0, 168, 107, 0.3)) brightness(1);
    }
    to {
        filter: drop-shadow(0 4px 8px rgba(0, 168, 107, 0.5)) brightness(1.15);
    }
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--accent);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s;
}

.btn:hover {
    background-color: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 255, 136, 0.3);
}

.projects {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.projects h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--accent);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #333;
    text-decoration: none;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-content {
    padding: 1.5rem;
}

.project-title p{
    font-size: 25px;
    margin-bottom: 0.5rem;
    color: #00a86b !important;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background-color: var(--bg-primary);
    color: var(--accent);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    border: 1px solid var(--accent);
}

.skills {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.skills h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
    position: relative;
    z-index: 1;
}

.skills h2::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 1rem auto 2rem;
}

.skills-categorized-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

.skill-category {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 2rem 2.5rem;
    border-radius: 15px;
    border: 2px solid rgba(0, 255, 136, 0.2);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 255, 136, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dim));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 12px 35px rgba(0, 255, 136, 0.2), 0 0 0 1px rgba(0, 255, 136, 0.3);
}

.skill-category:hover::before {
    transform: scaleX(1);
}

.skill-category-software {
    border: 3px solid var(--accent);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05) 0%, var(--bg-primary) 50%, var(--bg-secondary) 100%);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.15), 0 0 0 1px rgba(0, 255, 136, 0.15);
    transform: scale(1.05);
    z-index: 2;
}

.skill-category-software::before {
    transform: scaleX(1);
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dim));
}

.skill-category-software:hover {
    transform: scale(1.08) translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 255, 136, 0.2), 0 0 0 2px rgba(0, 255, 136, 0.25);
}

.skill-category-software h3 {
    color: var(--accent);
    text-shadow: 0 0 5px rgba(0, 255, 136, 0.3);
    font-size: 1.8rem;
}

.skill-category h3 {
    color: var(--accent);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(0, 255, 136, 0.3);
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 1px;
    position: relative;
}

.skill-item {
    margin-bottom: 2rem;
    position: relative;
}

.skill-item:last-child {
    margin-bottom: 0;
}

.skill-name {
    margin-bottom: 0.8rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-percentage {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 400;
    margin-left: 0.5rem;
}

.skill-bar {
    background-color: rgba(0, 0, 0, 0.3);
    height: 12px;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.skill-progress {
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-dim) 50%, var(--accent) 100%);
    background-size: 200% 100%;
    height: 100%;
    border-radius: 10px;
    transition: width 1s ease;
    position: relative;
    animation: progress-shine 2s ease-infinite;
}

@keyframes progress-shine {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.navbar.hidden {
    transform: translateY(-100%);
    box-shadow: none;
}

.mini-toolbar {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mini-toolbar.show {
    opacity: 1;
    visibility: visible;
}

.mini-toolbar a {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 24px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: relative;
    background: var(--accent);
    color: var(--bg-primary);
}

.mini-toolbar a:hover {
    transform: scale(1.2) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.mini-toolbar a::before {
    content: attr(data-tooltip);
    position: absolute;
    right: 70px;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.mini-toolbar a:hover::before {
    opacity: 1;
}

.mini-toolbar-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    font-size: 24px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: relative;
    background: var(--accent);
    color: var(--bg-primary);
    padding: 0;
}

.mini-toolbar-btn:hover {
    transform: scale(1.2) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.mini-toolbar-btn::before {
    content: attr(data-tooltip);
    position: absolute;
    right: 70px;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.mini-toolbar-btn:hover::before {
    opacity: 1;
}

.mini-toolbar-btn svg {
    width: 24px;
    height: 24px;
}

footer {
    background-color: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid #333;
}

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

.fade-in {
    animation: fadeIn 1s ease-out;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .nav-links {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .project-grid {
        grid-template-columns: 1fr;
    }

    .image-with-caption {
        width: 100%;
    }

    .skills-categorized-container {
        flex-direction: column;
        align-items: center;
    }

    .skill-category {
        width: 100%;
        max-width: none;
    }

    .about-grid {
        gap: 2rem;
    }

    .about-text h2 {
        font-size: 2rem;
    }

    .timeline-content {
        width: calc(100% - 50px);
        margin-left: 50px;
    }

    .timeline-dot {
        left: 15px;
    }

    .timeline::after {
        left: 15px;
    }

    .contact-grid {
        gap: 2rem;
    }

    .mini-toolbar {
        right: 15px;
        gap: 10px;
    }

    .mini-toolbar a,
    .mini-toolbar-btn {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
}

.about-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 4rem 0;
}

.about-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.about-content {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.about-grid {
    display: flex;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.about-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    display: flex;
    align-items: center;
}

.hello-gif {
    width: 40px;
    height: 40px;
    margin-left: 10px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.coding-thought-link {
    display: inline-block;
    margin-top: 1.5rem;
    font-size: 1.2rem;
    color: var(--accent);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: underline;
    text-decoration-color: transparent;
    font-weight: 500;
}

.coding-thought-link:hover {
    color: var(--accent-dim);
    text-decoration-color: var(--accent-dim);
    transform: translateX(5px);
}

.coding-thought-section {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.coding-thought-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.coding-thought-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.2;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 1rem;
}

.coding-thought-text {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.coding-thought-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.coding-thought-text p:last-child {
    margin-bottom: 0;
}

body.light-mode .coding-thought-title {
    color: var(--text-primary);
    border-bottom-color: var(--accent);
}

.experience {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.experience h2, .interests h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--accent);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--accent);
    top: 0;
    bottom: 0;
    left: 30px;
    opacity: 0.3;
}

.timeline-item {
    padding: 0;
    position: relative;
    background-color: inherit;
    width: 100%;
    margin-bottom: 3rem;
    padding-left: 0;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    height: 20px;
    width: 20px;
    background-color: var(--accent);
    position: absolute;
    border-radius: 50%;
    z-index: 2;
    left: 30px;
    transform: translateX(-50%);
    top: 1.5rem;
    box-shadow: 0 0 0 4px var(--bg-secondary), 0 0 0 6px var(--accent);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: 30px;
    transform: translateX(-50%);
}

.timeline-content {
    padding: 25px 35px;
    background-color: var(--bg-primary);
    position: relative;
    border-radius: 10px;
    border: 1px solid #333;
    width: calc(100% - 80px);
    margin-left: 80px;
    margin-right: 0;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.15);
    border-color: var(--accent);
}

.timeline-content h3,
.interest-card h3,
.method-content h3 {
    color: var(--text-primary);
}

.timeline-date {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.timeline-content p {
    color: var(--text-secondary);
}

.interests {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.interest-card {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #333;
    transition: transform 0.3s, box-shadow 0.3s;
}

.interest-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
}

.interest-icon {
    margin-bottom: 1rem;
    color: var(--accent);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.interest-icon img {
    max-height: 100%;
    max-width: 60px;
    border-radius: 40%;
}

.interest-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.interest-card p {
    color: var(--text-secondary);
}

.contact-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 4rem 0;
}

.contact-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.contact-content {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.contact-grid {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #333;
}

.contact-form-container {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #333;
}

.contact-form-container h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--accent);
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: bold;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #555;
    border-radius: 5px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.3);
}

.contact-form textarea {
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--accent);
    text-align: center;
}

.contact-methods {
    display: grid;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #444;
}

.method-icon {
    font-size: 1.8rem;
    color: var(--accent);
    width: 40px;
    text-align: center;
}

.method-icon img {
    max-width: 100%;
    height: auto;
}

.method-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.method-content a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.method-content a:hover {
    color: var(--accent);
}

.location {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    text-align: center;
}

.location h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--accent);
}

.location-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .about-grid, .contact-grid {
        flex-direction: column;
    }

    .timeline::after {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 0;
        padding-right: 0;
    }

    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px;
        margin-right: 0;
    }

    .timeline-dot {
        left: 20px;
        transform: translateX(-50%);
    }

    .timeline-item:nth-child(even) .timeline-dot {
        left: 20px;
        transform: translateX(-50%);
    }

    .coding-thought-title {
        font-size: 2rem;
    }

    .coding-thought-text {
        font-size: 1rem;
    }

    .skills h2 {
        font-size: 2rem;
    }

    .skill-category {
        min-width: 100%;
        padding: 1.5rem;
    }

    .skill-category h3 {
        font-size: 1.3rem;
    }

    .skill-name {
        font-size: 1rem;
    }

    .skill-category-software {
        transform: scale(1);
    }

    .skill-category-software:hover {
        transform: translateY(-5px);
    }

    .skill-category-software h3 {
        font-size: 1.5rem;
    }
}

.project-detail-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 4rem 0;
}

.project-detail-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.project-detail-content {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.project-detail-image {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}

.project-detail-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.project-detail-image a:hover img {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 255, 136, 0.4);
}

.project-detail-text {
    max-width: 900px;
    margin: 0 auto;
    color: var(--text-secondary);
}

.project-detail-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    text-align: center;
}

.project-detail-text h3 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.project-detail-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.project-detail-text .tech-stack {
    justify-content: center;
    margin-bottom: 2rem;
}

.download-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    text-align: center;
}

.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.download-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.attachment-list {
    list-style: none;
    padding: 0;
    margin-top: 1.5rem;
}

.attachment-list li {
    margin-bottom: 0.8rem;
}

.attachment-list li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.attachment-list li a:hover {
    color: var(--accent-dim);
    text-decoration: underline;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.flash-messages {
    margin: 1rem auto;
    max-width: 1200px;
    padding: 0 20px;
}

.flash-success {
    background-color: #28a745;
    color: white;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.flash-error {
    background-color: #dc3545;
    color: white;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.project-detail-image {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-bottom: 3rem;
}

.image-with-caption {
    margin: 0;
    text-align: center;
    width: calc(50% - 20px);
    background-color: #1f1f1f;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #333;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-with-caption:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 255, 136, 0.2);
}

.image-with-caption img {
    max-width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 4px;
    display: block;
}

.image-with-caption figcaption {
    margin-top: 12px;
    font-size: 0.95em;
    color: var(--text-secondary);
    padding: 5px 0;
    font-style: italic;
}

body.light-mode .image-with-caption {
    background-color: #F0F0F0;
}

body.light-mode .image-with-caption figcaption {
    color: #000000;
}

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: auto;
    padding: 0;
    border: 1px solid #333;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    min-height: auto;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    overflow: hidden;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-primary);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.8rem;
    color: var(--accent);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    line-height: 1;
}

.modal-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2.5rem 3rem;
    flex: 1;
    overflow-y: auto;
    min-height: 200px;
}

.modal-body h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-weight: 700;
    word-wrap: break-word;
}

.modal-body p {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--text-secondary);
    margin: 0;
    word-wrap: break-word;
    white-space: pre-wrap;
}

@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .modal-header {
        padding: 1rem 1.5rem;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .modal-body h1 {
        font-size: 2rem;
    }

    .modal-body p {
        font-size: 1rem;
    }
}

.tech-tag {
    position: relative;
    cursor: pointer;
}

.tech-tag[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.9em;
    white-space: nowrap;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: 1px solid #333;
}

.tech-tag[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

.tech-tag[data-tooltip]::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: var(--bg-secondary) transparent transparent transparent;
    z-index: 11;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.tech-tag[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
}

body.light-mode .tech-tag[data-tooltip]::after {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: #ccc;
}

body.light-mode .tech-tag[data-tooltip]::before {
    border-top-color: var(--bg-secondary);
}

body.light-mode .cursor-trail {
    mix-blend-mode: normal;
    border-color: var(--accent);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #000;
    margin-bottom: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.video-container iframe,
.video-container object,
.video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}