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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1d1d1f;
    background-color: #ffffff;
    overflow-x: hidden;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Container */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 60px;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Splash Screen */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.splash-content {
    text-align: center;
    color: white;
}

.logo-animation {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 24px;
}

.letter {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 48px;
    font-weight: 700;
    opacity: 0;
    animation: letterFadeIn 0.8s ease forwards;
}

.letter:nth-child(2) {
    animation-delay: 0.3s;
}

.splash-text {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.loading-bar {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 1px;
    margin: 0 auto;
    overflow: hidden;
}

.loading-progress {
    height: 100%;
    background: white;
    border-radius: 1px;
    width: 0;
    animation: loadingProgress 1.5s ease-in-out 1s forwards;
}

/* Navigation */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 250, 250, 0.95) 100%);
    backdrop-filter: saturate(180%) blur(32px);
    -webkit-backdrop-filter: saturate(180%) blur(32px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    z-index: 9999;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Mobile Navigation Menu */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    cursor: pointer;
    z-index: 10001;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: #000;
    margin: 3px 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-radius: 2px;
}

.nav-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 36px;
    font-weight: 600;
    color: #1d1d1f;
    position: relative;
}

.logo-text {
    background: linear-gradient(135deg, #000000, #333333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.logo-text:hover {
    background: linear-gradient(135deg, #333333, #000000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #333333;
    font-weight: 400;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    padding: 8px 16px;
    border-radius: 8px;
    letter-spacing: 0.3px;
}

.nav-link:hover {
    color: #000000;
    background: rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #000000, #333333);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateX(-50%);
    border-radius: 1px;
}

.nav-link:hover::after {
    width: 60%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: #1d1d1f;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 80px;
    background:
        radial-gradient(circle at 20% 30%, rgba(0, 0, 0, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 0, 0, 0.02) 0%, transparent 50%),
        linear-gradient(135deg, #ffffff 0%, #f8f8f8 50%, #f0f0f0 100%);
    position: relative;
    overflow: hidden;
    z-index: 1;
    margin-bottom: 0;
    isolation: isolate;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='0.015'%3E%3Ccircle cx='40' cy='40' r='1'/%3E%3Ccircle cx='20' cy='20' r='0.5'/%3E%3Ccircle cx='60' cy='60' r='0.5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 1;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.01) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.7;
    animation: float 20s linear infinite;
}

.hero-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 60px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 120px;
    align-items: center;
    position: relative;
    z-index: auto;
}

.hero-text {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.3s forwards;
}

.hero-greeting {
    display: block;
    font-size: 28px;
    font-weight: 300;
    color: #666666;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero-name {
    display: block;
    font-size: 72px;
    font-weight: 200;
    color: #000000;
    margin-bottom: 20px;
    letter-spacing: -2px;
    line-height: 0.9;
}

.hero-subtitle {
    font-size: 26px;
    font-weight: 300;
    color: #333333;
    margin-bottom: 32px;
    letter-spacing: 0.3px;
}

.hero-description {
    font-size: 18px;
    color: #666666;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 540px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-primary, .btn-secondary {
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: white;
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
}

.btn-secondary {
    background: transparent;
    color: #000000;
    border: 2px solid #000000;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: #000000;
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: -1;
}

.btn-secondary:hover::before {
    width: 100%;
}

.btn-secondary:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* Hero Visual */
.hero-visual {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.floating-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(24px);
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(0, 0, 0, 0.08);
    animation: float 6s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.card-dots {
    display: flex;
    gap: 8px;
}

.card-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
}

.card-dots span:nth-child(2) {
    background: #ffbd2e;
}

.card-dots span:nth-child(3) {
    background: #27ca3f;
}

.card-content {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 14px;
    line-height: 1.6;
}

.code-line {
    margin-bottom: 8px;
}

.code-indent {
    padding-left: 20px;
}

.code-keyword {
    color: #000000;
    font-weight: 500;
}

.code-variable {
    color: #333333;
}

.code-operator {
    color: #666666;
}

.code-string {
    color: #000000;
}

.code-function {
    color: #333333;
}

/* Section Styling */
section {
    padding: 80px 0;
    position: relative;
}

section:not(.hero-section) {
    z-index: 100;
    position: relative;
    background: #ffffff;
}

.section-header {
    text-align: center;
    margin-bottom: 100px;
    padding: 0 20px;
    position: relative;
}

.section-header::before {
    content: '';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.15) 50%, transparent 100%);
}

.section-title {
    font-size: 56px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 24px;
    color: #1d1d1f;
    letter-spacing: -0.03em;
    line-height: 1.05;
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.section-subtitle {
    font-size: 22px;
    font-weight: 400;
    text-align: center;
    color: #4a4a4a;
    margin-bottom: 80px;
    line-height: 1.4;
    letter-spacing: 0.5px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.3) 50%, transparent 100%);
    border-radius: 1px;
}

/* About Section */
.about-section {
    background: #ffffff;
    padding: 120px 0;
    position: relative;
    z-index: 100;
    margin-top: -2px;
    clear: both;
    overflow: hidden;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.15);
    isolation: isolate;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.08) 20%, rgba(0, 0, 0, 0.12) 50%, rgba(0, 0, 0, 0.08) 80%, transparent 100%);
}

.about-section::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -20%;
    width: 40%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    transform: rotate(-15deg);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-text p {
    font-size: 18px;
    line-height: 1.8;
    color: #333333;
    margin-bottom: 28px;
    font-weight: 300;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 200;
    color: #000000;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #666666;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-image {
    display: flex;
    justify-content: center;
}

.profile-image {
    width: 320px;
    height: 320px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15), 0 4px 16px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    transition: none;
}

.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(240, 240, 240, 0.2) 100%);
    border-radius: 32px;
    z-index: -1;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.about-actions {
    margin-top: 32px;
}

.resume-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    padding: 18px 36px;
}

/* Experience Section */
.experience-section {
    padding: 120px 0;
    background: #fafafa;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.experience-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.08) 20%, rgba(0, 0, 0, 0.12) 50%, rgba(0, 0, 0, 0.08) 80%, transparent 100%);
}

.experience-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.06) 20%, rgba(0, 0, 0, 0.1) 50%, rgba(0, 0, 0, 0.06) 80%, transparent 100%);
}

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

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.08) 50%, rgba(0, 0, 0, 0.05) 100%);
    border-radius: 1.5px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    padding-left: 80px;
}

.timeline-marker {
    position: absolute;
    left: 24px;
    top: 24px;
    width: 14px;
    height: 14px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.08), 0 6px 20px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.experience-card {
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 250, 250, 0.9) 100%),
        white;
    border-radius: 12px;
    padding: 40px;
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.06);
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.experience-card:hover {
    transform: translateY(-2px);
    box-shadow:
        0 8px 40px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.experience-header h3 {
    font-size: 20px;
    font-weight: 500;
    color: #000000;
    letter-spacing: 0.2px;
}

.experience-period {
    font-size: 14px;
    color: #666666;
    font-weight: 400;
    background: #f5f5f5;
    padding: 6px 16px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}

.experience-card h4 {
    font-size: 16px;
    color: #999999;
    font-weight: 400;
    margin-bottom: 24px;
    letter-spacing: 0.2px;
}

.experience-highlights {
    list-style: none;
    margin-bottom: 24px;
}

.experience-highlights li {
    font-size: 16px;
    color: #333333;
    margin-bottom: 14px;
    position: relative;
    padding-left: 20px;
    font-weight: 300;
    line-height: 1.6;
}

.experience-highlights li::before {
    content: '•';
    color: #000000;
    position: absolute;
    left: 0;
    font-weight: normal;
}

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: #f0f0f0;
    color: #333333;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* Projects Section */
.projects-section {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.projects-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.1) 20%, rgba(0, 0, 0, 0.15) 50%, rgba(0, 0, 0, 0.1) 80%, transparent 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.project-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 250, 250, 0.8) 100%);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: none;
}

.project-card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.project-image {
    height: 220px;
    overflow: hidden;
    background: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: none;
}

.project-content {
    padding: 32px;
}

.project-content h3 {
    font-size: 24px;
    font-weight: 500;
    color: #000000;
    margin-bottom: 16px;
    letter-spacing: 0.2px;
}

.project-content p {
    font-size: 16px;
    color: #666666;
    line-height: 1.7;
    margin-bottom: 24px;
    font-weight: 300;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.feature-tag {
    background: #f0f0f0;
    color: #333333;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.2px;
}

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #000000;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    font-size: 16px;
}

.project-link:hover {
    color: #666666;
}

/* Skills Section */
.skills-section {
    padding: 120px 0;
    background: #f8f8f8;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.skills-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.08) 20%, rgba(0, 0, 0, 0.12) 50%, rgba(0, 0, 0, 0.08) 80%, transparent 100%);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.skill-category {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 248, 248, 0.7) 100%);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: none;
}

.skill-category h3 {
    font-size: 20px;
    font-weight: 400;
    color: #000000;
    margin-bottom: 24px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 248, 248, 0.8) 100%);
    color: #1d1d1f;
    padding: 10px 18px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid rgba(0, 0, 0, 0.12);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    letter-spacing: 0.3px;
    transition: none;
}

.skill-tag:hover {
    background: linear-gradient(135deg, rgba(250, 250, 250, 0.95) 0%, rgba(240, 240, 240, 0.9) 100%);
    color: #000000;
    border-color: rgba(0, 0, 0, 0.15);
}

/* Contact Section */
.contact-section {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.08) 20%, rgba(0, 0, 0, 0.12) 50%, rgba(0, 0, 0, 0.08) 80%, transparent 100%);
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 250, 250, 0.8) 100%);
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: none;
}

.contact-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.contact-details {
    flex: 1;
}

.contact-details h4 {
    font-size: 18px;
    font-weight: 500;
    color: #000000;
    margin-bottom: 6px;
    letter-spacing: 0.2px;
}

.contact-details a {
    color: #666666;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.2s ease;
    font-size: 16px;
}

.contact-details a:hover {
    color: #000000;
}


/* Footer */
.footer {
    background: #000000;
    color: white;
    padding: 60px 0;
    border-top: 1px solid #333333;
}

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

.footer-text p {
    color: #999999;
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.3px;
}

.footer-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 300;
    transition: color 0.2s ease;
    font-size: 12px;
    letter-spacing: 0.3px;
}

.footer-link:hover {
    color: #cccccc;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes loadingProgress {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 80px;
        text-align: center;
    }

    .hero-name {
        font-size: 56px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 80px;
        text-align: center;
    }

    .about-stats {
        justify-content: center;
    }

    .section-title {
        font-size: 48px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .nav-content {
        padding: 0 24px;
        height: 60px;
    }

    .nav-logo {
        font-size: 28px;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 60px;
        gap: 8px;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        overflow-y: auto;
        z-index: 9998;
    }

    .nav-links.active {
        transform: translateX(0);
        display: flex;
    }

    .nav-link {
        font-size: 18px;
        padding: 16px 32px;
        width: 100%;
        text-align: left;
        border-radius: 0;
    }

    .nav-link:hover {
        background: rgba(0, 0, 0, 0.03);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* Hero Section Mobile */
    .hero-section {
        padding: 100px 0 60px;
        min-height: auto;
        margin-top: 60px;
        z-index: 1;
        position: relative;
        isolation: isolate;
    }

    .hero-content {
        gap: 40px;
    }

    .hero-name {
        font-size: 42px;
        line-height: 1.2;
    }

    .hero-greeting {
        font-size: 20px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-description {
        font-size: 16px;
        line-height: 1.6;
    }

    .hero-visual {
        display: none;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        padding: 16px 24px;
        font-size: 16px;
    }

    /* Section Headers Mobile */
    .section-title {
        font-size: 36px;
        margin-bottom: 16px;
    }

    .section-subtitle {
        font-size: 18px;
        margin-bottom: 48px;
    }

    .section-header {
        margin-bottom: 60px;
    }

    /* About Section Mobile */
    .about-section {
        padding: 80px 0;
        background: #ffffff;
        z-index: 100;
        position: relative;
        box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.2);
        margin-top: -2px;
        isolation: isolate;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-text p {
        font-size: 16px;
        text-align: left;
    }

    .about-image {
        order: -1;
        display: flex;
        justify-content: center;
    }

    .profile-image {
        width: 200px;
        height: 200px;
        margin: 0 auto;
    }

    .about-actions {
        text-align: center;
    }

    /* Experience Section Mobile */
    .experience-section {
        padding: 80px 0;
    }

    .timeline-item {
        padding-left: 50px;
        margin-bottom: 40px;
    }

    .experience-timeline::before {
        left: 15px;
    }

    .timeline-marker {
        left: 9px;
        width: 12px;
        height: 12px;
    }

    .experience-card {
        padding: 24px;
    }

    .experience-card h3 {
        font-size: 18px;
    }

    .experience-card h4 {
        font-size: 14px;
    }

    .experience-highlights {
        font-size: 14px;
    }

    .experience-tags {
        flex-wrap: wrap;
    }

    /* Projects Section Mobile */
    .projects-section {
        padding: 80px 0;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .project-card {
        border-radius: 12px;
    }

    .project-content {
        padding: 24px;
    }

    .project-content h3 {
        font-size: 20px;
    }

    .project-content p {
        font-size: 14px;
    }

    /* Skills Section Mobile */
    .skills-section {
        padding: 80px 0;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .skill-category {
        padding: 24px;
    }

    .skill-category h3 {
        font-size: 16px;
        margin-bottom: 16px;
    }

    .skill-tags {
        gap: 8px;
    }

    .skill-tag {
        font-size: 12px;
        padding: 8px 14px;
    }

    /* Contact Section Mobile */
    .contact-section {
        padding: 80px 0;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .contact-item {
        padding: 20px;
        flex-direction: row;
        gap: 16px;
    }

    .contact-icon {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }

    .contact-details h4 {
        font-size: 14px;
    }

    .contact-details a {
        font-size: 14px;
    }

    /* Footer Mobile */
    .footer {
        padding: 40px 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-text p {
        font-size: 11px;
    }

    .footer-link {
        font-size: 11px;
    }

    /* General Mobile Adjustments */
    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-content {
        padding: 0 16px;
        height: 56px;
    }

    .nav-logo {
        font-size: 24px;
    }

    .logo-text {
        padding: 6px 12px;
    }

    .nav-links {
        top: 56px;
        padding-top: 40px;
    }

    .nav-link {
        font-size: 16px;
        padding: 14px 24px;
    }

    /* Hero Section Small Mobile */
    .hero-section {
        padding: 80px 0 40px;
        margin-top: 56px;
        z-index: 1;
        position: relative;
        isolation: isolate;
    }

    .hero-name {
        font-size: 32px;
    }

    .hero-greeting {
        font-size: 18px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-description {
        font-size: 15px;
    }

    .btn-primary, .btn-secondary {
        padding: 14px 20px;
        font-size: 15px;
    }

    /* Section Headers Small Mobile */
    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    /* About Section Small Mobile */
    .about-section {
        padding: 60px 0;
        background: #ffffff;
        z-index: 100;
        position: relative;
        box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.2);
        margin-top: -2px;
        isolation: isolate;
    }

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

    .about-text p {
        font-size: 15px;
    }

    /* Experience Section Small Mobile */
    .experience-section {
        padding: 60px 0;
    }

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

    .experience-timeline::before {
        left: 12px;
    }

    .timeline-marker {
        left: 7px;
        width: 10px;
        height: 10px;
    }

    .experience-card {
        padding: 20px;
    }

    .experience-card h3 {
        font-size: 16px;
    }

    .experience-card h4 {
        font-size: 13px;
    }

    .experience-highlights {
        font-size: 13px;
    }

    .experience-period {
        font-size: 12px;
    }

    .tag {
        font-size: 11px;
        padding: 6px 10px;
    }

    /* Projects Section Small Mobile */
    .projects-section {
        padding: 60px 0;
    }

    .project-content {
        padding: 20px;
    }

    .project-content h3 {
        font-size: 18px;
    }

    .project-content p {
        font-size: 13px;
    }

    .feature-tag {
        font-size: 11px;
        padding: 6px 10px;
    }

    .project-link {
        font-size: 14px;
    }

    /* Skills Section Small Mobile */
    .skills-section {
        padding: 60px 0;
    }

    .skill-category {
        padding: 20px;
    }

    .skill-category h3 {
        font-size: 14px;
    }

    .skill-tag {
        font-size: 11px;
        padding: 6px 12px;
    }

    /* Contact Section Small Mobile */
    .contact-section {
        padding: 60px 0;
    }

    .contact-item {
        padding: 16px;
    }

    .contact-icon {
        width: 44px;
        height: 44px;
        font-size: 16px;
        border-radius: 12px;
    }

    .contact-details h4 {
        font-size: 13px;
    }

    .contact-details a {
        font-size: 13px;
    }

    /* Footer Small Mobile */
    .footer {
        padding: 32px 0;
    }

    /* General Small Mobile */
    section {
        padding: 40px 0;
    }
}