/* ===================================
   CSS Variables & Reset
=================================== */
:root {
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #14b8a6;
    --ai-purple: #a855f7;
    --ai-blue: #06b6d4;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --card-bg: #1e293b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--darker-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* ===================================
   Navigation
=================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(2, 6, 23, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

.nav-menu a:hover {
    color: var(--primary-color);
}

.btn-contact {
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    border-radius: 0.5rem;
    font-weight: 600;
}

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

.btn-contact::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===================================
   Hero Section
=================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    opacity: 0.15;
}

.hero-gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.4) 0%, transparent 50%);
    animation: gradientShift 10s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    background: linear-gradient(to right, rgba(2, 6, 23, 0.9), rgba(2, 6, 23, 0.4));
}

.hero-content {
    max-width: 800px;
    padding: 2rem 0;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.main-title {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

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

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

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 0.5rem;
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ===================================
   Section Styles
=================================== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ===================================
   About Section
=================================== */
.about-section {
    background: var(--dark-bg);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.about-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
}

.about-image {
    border-radius: 1rem;
    overflow: hidden;
    aspect-ratio: 1;
}

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

.about-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about-tagline {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
}

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

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

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

.credential-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.credential-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.credential-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.credential-detail,
.credential-period,
.credential-gpa {
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.cert-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.cert-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-secondary);
}

.cert-list i {
    font-size: 1rem;
    color: var(--success-color);
}

/* Contact Badge */
.contact-badge {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 0.5rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.contact-badge i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.contact-badge a {
    color: var(--primary-color);
    transition: var(--transition);
}

.contact-badge a:hover {
    text-decoration: underline;
}

/* Career Timeline */
.career-section {
    margin-top: 3rem;
}

.career-section h4 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--primary-color);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
    padding-left: 2rem;
}

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

.timeline-item {
    position: relative;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 1.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--dark-bg);
}

.timeline-year {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 0.3rem;
    margin-bottom: 0.8rem;
}

.timeline-content h5 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-role {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.timeline-achievements {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-achievements li {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.timeline-achievements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.credential-extra {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

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

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

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.skill-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.skill-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.4rem 0.8rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 0.3rem;
    font-size: 0.9rem;
}

/* Value Proposition */
.value-proposition {
    margin-top: 4rem;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 1rem;
    border: 2px solid var(--border-color);
}

.value-proposition h3 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--primary-color);
}

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

.value-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 0.8rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: var(--transition);
}

.value-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.value-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.value-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===================================
   References Section
=================================== */
.references-section {
    background: var(--dark-bg);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.5rem;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

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

.reference-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.reference-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

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

.reference-content {
    padding: 1.5rem;
}

.reference-category {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border-radius: 0.3rem;
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
}

.reference-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.reference-client {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.reference-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.reference-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.reference-tech .tag {
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
}

.reference-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.reference-duration {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.reference-link {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.reference-link:hover {
    color: var(--accent-color);
}

/* ===================================
   Reviews Section
=================================== */
.reviews-container {
    max-width: 1000px;
    margin: 0 auto;
}

.overall-rating {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 1rem;
}

.rating-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.rating-stars {
    font-size: 2rem;
    color: var(--warning-color);
    margin: 1rem 0;
}

.rating-count {
    color: var(--text-secondary);
}

.reviews-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.review-author h4 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.review-company {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.review-stars {
    color: var(--warning-color);
    font-size: 1.2rem;
}

.review-course {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.review-comment {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.review-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.add-review-section {
    text-align: center;
    padding-top: 2rem;
}

/* ===================================
   Contact Section
=================================== */
.contact-section {
    background: var(--dark-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    height: fit-content;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.contact-item h4 {
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-bg);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.required {
    color: var(--danger-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

/* ===================================
   Footer
=================================== */
.footer {
    background: var(--darker-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* ===================================
   Modal
=================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 1rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h3 {
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-content form {
    padding: 2rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.modal-actions .btn {
    flex: 1;
}

.star-rating {
    display: flex;
    gap: 0.5rem;
    font-size: 2rem;
    cursor: pointer;
}

.star-rating i {
    color: var(--border-color);
    transition: var(--transition);
}

.star-rating i.active,
.star-rating i:hover {
    color: var(--warning-color);
}

/* ===================================
   Loading State
=================================== */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* ===================================
   Responsive Design
=================================== */
@media (max-width: 1024px) {
    .about-card {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--darker-bg);
        flex-direction: column;
        padding: 2rem;
        transform: translateX(-100%);
        transition: var(--transition);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .main-title {
        font-size: 2.5rem;
    }
    
    .name {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .references-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        min-height: 600px;
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .skill-card,
    .reference-card {
        padding: 1.5rem;
    }
}