/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Prevent horizontal scrolling*/
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden; /* Prevent horizontal scrolling*/
    max-width: 100vw; 
}


/* ===== VARIABLES ===== */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --light-text: #f1f5f9;
    --gray-text: #94a3b8;
    --card-bg: #1e293b;
    --border-color: #334155;
    --transition: all 0.3s ease;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-main {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

/* Profile Image */
.hero-profile {
    flex-shrink: 0;
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 20px;
    object-fit: cover;
    border: 3px solid transparent;
    background: linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
                linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color)) border-box;
    box-shadow: 
        0 10px 40px rgba(99, 102, 241, 0.25),
        0 0 0 1px rgba(99, 102, 241, 0.1);
    transition: var(--transition);
    position: relative;
}

.profile-image:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 
        0 15px 50px rgba(99, 102, 241, 0.35),
        0 0 0 1px rgba(99, 102, 241, 0.2);
}

/* 빛나는 효과 추가 */
.hero-profile::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    border-radius: 20px;
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
    filter: blur(15px);
}

.hero-profile:hover::before {
    opacity: 0.6;
}

.hero-text {
    flex: 1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--light-text), var(--gray-text));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-visa {
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--gray-text);
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--light-text);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Social Links */
.hero-social {
    display: flex;
    gap: 1rem;
}

.hero-social a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-text);
    font-size: 1.3rem;
    transition: var(--transition);
}

.hero-social a:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; top: 8px; }
    50% { opacity: 1; top: 16px; }
}

/* ===== SECTION TITLES ===== */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--light-text), var(--gray-text));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-text);
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--darker-bg);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    color: var(--gray-text);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* ===== EXPERIENCE SECTION ===== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--dark-bg);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.timeline-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.timeline-content h4 {
    color: var(--gray-text);
    font-weight: 500;
    margin-bottom: 1rem;
}

.timeline-content p {
    color: var(--gray-text);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Timeline with Small Video Thumbnail */
.timeline-header-with-video {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.timeline-info {
    flex: 1;
    min-width: 0;
}

.timeline-video-small {
    flex-shrink: 0;
    align-self: flex-start;
}

.video-thumbnail-link {
    position: relative;
    display: block;
    width: 120px;
    height: 68px;
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.video-thumbnail-link:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.3);
}

.video-thumbnail-small {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.video-thumbnail-link:hover .video-thumbnail-small {
    filter: brightness(0.8);
}

/* Small Play Button */
.play-button-small {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    background: rgba(255, 0, 0, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    transition: var(--transition);
    pointer-events: none;
}

.video-thumbnail-link:hover .play-button-small {
    background: rgb(255, 0, 0);
    transform: translate(-50%, -50%) scale(1.15);
}

.play-button-small i {
    margin-left: 2px; /* YouTube 아이콘 중앙 정렬 */
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tags span {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.875rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background: var(--darker-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
}

/* Project Image Container */
.project-image-container {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--darker-bg), var(--dark-bg));
    cursor: pointer;
}

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

.project-card:hover .project-image {
    transform: scale(1.08);
    filter: brightness(0.8);
}

/* YouTube Overlay */
.youtube-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 0, 0, 0.85);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.2rem;
    opacity: 0;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: 0 5px 25px rgba(255, 0, 0, 0.4);
}

.project-image-container:hover .youtube-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.youtube-overlay:hover {
    background: rgb(255, 0, 0);
    transform: translate(-50%, -50%) scale(1.15);
    box-shadow: 0 8px 35px rgba(255, 0, 0, 0.6);
}

.youtube-overlay i {
    margin-left: 3px; 
}

/* Project Content */
.project-card > .project-header,
.project-card > h3,
.project-card > p,
.project-card > .tech-tags {
    padding: 0 2rem;
}

.project-card > .project-header {
    padding-top: 2rem;
}

.project-card > .tech-tags {
    padding-bottom: 2rem;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-links a {
    color: var(--gray-text);
    font-size: 1.5rem;
    transition: var(--transition);
}

.project-links a:hover {
    color: var(--primary-color);
    transform: scale(1.2);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.project-period {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.project-card > p:not(.project-period) {
    color: var(--gray-text);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--light-text);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-category h3 i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-items span {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition);
}

.skill-items span:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: scale(1.05);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--darker-bg);
}

.contact-subtitle {
    text-align: center;
    color: var(--gray-text);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: var(--light-text);
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: var(--gray-text);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--primary-color);
}

.contact-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
}

.contact-cta p {
    color: var(--gray-text);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

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

.footer p {
    color: var(--gray-text);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--gray-text);
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary-color);
    transform: scale(1.2);
}
/* ===== RESPONSIVE ===== */

/* Tablet & Medium Screens */
@media (max-width: 968px) {
    .hero-main {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-description {
        text-align: center;
    }

    .profile-image {
        width: 160px;
        height: 160px;
    }

    .hero-title {
        font-size: 3rem;
    }
}

/* Mobile & Small Screens */
@media (max-width: 768px) {
    /* Hero Section - Prevent Navbar overlay*/
    .hero {
        padding-top: 80px;
        min-height: calc(100vh - 80px);
    }

    /* Navbar mobile ver */
    .navbar .container {
        padding: 0.75rem 1rem; 
    }

    .logo {
        font-size: 1.2rem;
        white-space: nowrap;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 60px; 
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.3);
        padding: 2rem 0;
        z-index: 999;
    }

    .nav-links.active {
        left: 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1rem;
        padding: 0 1rem; 
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        padding: 0 1rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .profile-image {
        width: 140px;
        height: 140px;
    }

    .hero-social {
        justify-content: center;
    }

    /* 2. Experience*/
    .timeline::before {
        left: 10px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-dot {
        left: 1px;
    }

    .timeline-content h3 {
        font-size: 1.3rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    .timeline-content h4 {
        font-size: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .timeline-content {
        padding: 1.5rem;
    }

    /* Timeline video mobile */
    .timeline-header-with-video {
        flex-direction: column;
        gap: 1rem;
    }

    .video-thumbnail-link {
        width: 100%;
        max-width: 280px;
        height: auto;
        aspect-ratio: 16 / 9;
    }

    .play-button-small {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }

    /* 3. Projects - mobile */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 0.5rem;
    }

    .project-card {
        margin: 0 auto;
        max-width: 100%;
    }

    .project-image-container {
        height: 200px;
    }

    .project-card > .project-header,
    .project-card > h3,
    .project-card > p,
    .project-card > .tech-tags {
        padding: 0 1.5rem;
    }

    .project-card > .project-header {
        padding-top: 1.5rem;
    }

    .project-card > .tech-tags {
        padding-bottom: 1.5rem;
    }

    .project-card h3 {
        font-size: 1.3rem;
    }

    /* Skills mobile*/
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* Contact mobile */
    .contact-content {
        grid-template-columns: 1fr;
    }

    /* 4. Footer - prevent cut*/
    .footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1rem;
    }

    .footer p {
        font-size: 0.9rem;
    }

    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }

    /* Section padding shorter*/
    section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
        padding: 0 1rem;
    }

    .section-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .container {
        padding: 0 1.5rem;
    }
}

/* Extra Small Screens */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding-top: 70px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-visa {
        font-size: 0.85rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .hero-social a {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 0.75rem 1.5rem;
    }

    /* Experience mini*/
    .timeline-content h3 {
        font-size: 1.2rem;
    }

    .timeline-content h4 {
        font-size: 0.9rem;
    }

    .timeline-content p {
        font-size: 0.95rem;
    }

    .tech-tags span {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
    }

    /* Projects mini */
    .projects-grid {
        grid-template-columns: 1fr;
        padding: 0;
    }

    .project-card > .project-header,
    .project-card > h3,
    .project-card > p,
    .project-card > .tech-tags {
        padding: 0 1rem;
    }

    .project-card > .project-header {
        padding-top: 1rem;
    }

    .project-card > .tech-tags {
        padding-bottom: 1rem;
    }

    .project-icon {
        font-size: 2rem;
    }

    .project-links a {
        font-size: 1.3rem;
    }

    /* Video thumbnail mini*/
    .video-thumbnail-link {
        max-width: 100%;
    }

    /* Skills mini*/
    .skill-category {
        padding: 1.5rem;
    }

    .skill-category h3 {
        font-size: 1.1rem;
    }

    .skill-items span {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    /* Contact mini*/
    .contact-item i {
        font-size: 1.5rem;
    }

    .contact-item h4 {
        font-size: 1rem;
    }

    .contact-item a {
        font-size: 0.9rem;
    }

    /* Footer mini*/
    .social-links a {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

/* Very Small Screens */
@media (max-width: 360px) {
    .logo {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .timeline-content h3 {
        font-size: 1.1rem;
    }

    .project-card h3 {
        font-size: 1.2rem;
    }
}