/* JasonHandWriting Font Import - 使用可靠的 CDN */
@font-face {
  font-family: "JasonHandwriting2-Regular";
  src: url(https://cdn.jsdelivr.net/gh/max32002/JasonHandWritingFonts@20240409/webfont/JasonHandwriting2-Regular.woff2) format("woff2");
}

@import url('https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&display=swap');

/* 如果 JasonHandWriting 字體檔案可用，可以使用以下 @font-face */
/*
@font-face {
    font-family: 'JasonHandWriting2';
    src: url('./fonts/JasonHandWriting2.woff2') format('woff2'),
         url('./fonts/JasonHandWriting2.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}
*/

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

:root {
    /* Color Palette - 簡約質感 */
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #6c757d;
    --accent-blue: #007bff;
    --accent-blue-hover: #0056b3;
    --white: #ffffff;
    
    /* Typography */
    --font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --handwriting-font: 'Kalam', 'Caveat', 'Dancing Script', cursive;
    --jason-handwriting: 'JasonHandwriting2-Regular', 'Ma Shan Zheng', 'JasonHandWriting2', 'Kalam', 'Caveat', 'Noto Sans TC', cursive;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--primary-black);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--medium-gray);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo .logo-img {
    height: 45px;
    width: auto;
    max-width: 200px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
    height: 100%;
}

.nav-item {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-black);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    display: flex;
    align-items: center;
    height: 100%;
    font-size: var(--font-size-base);
    line-height: 1.2;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 25px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-blue);
    transition: var(--transition-fast);
}

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

/* Mobile Navigation */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-black);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    position: relative;
    padding-top: 70px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    min-height: calc(100vh - 140px);
}

.hero-greeting {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-title {
    margin-bottom: var(--spacing-xl);
}

.hero-title-main {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-title-sub {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 400;
    color: var(--dark-gray);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.hero-description {
    font-family: var(--jason-handwriting);
    font-size: var(--font-size-2xl);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
    font-weight: 400;
    letter-spacing: 0.8px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1s forwards;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.2s forwards;
}

.hero-animation {
    width: 350px;
    height: 350px;
    background: var(--white);
    border-radius: 12px;
    position: relative;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--medium-gray);
    overflow: hidden;
}

/* 瀏覽器頂部欄 */
.hero-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background: linear-gradient(135deg, var(--light-gray), var(--medium-gray));
    border-bottom: 1px solid var(--dark-gray);
}

/* 瀏覽器按鈕 */
.hero-animation::after {
    content: '';
    position: absolute;
    top: 12px;
    left: 15px;
    width: 16px;
    height: 16px;
    background: #ff5f57;
    border-radius: 50%;
    box-shadow: 
        25px 0 0 #ffbd2e,
        50px 0 0 #28ca42;
}

/* 瀏覽器地址欄 */
.browser-address-bar {
    position: absolute;
    top: 50px;
    left: 15px;
    right: 15px;
    height: 32px;
    background: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: 6px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.address-input {
    font-size: 12px;
    color: var(--dark-gray);
}

.protocol {
    color: var(--dark-gray);
    opacity: 0.7;
}

.domain {
    color: var(--accent-blue);
    font-weight: 500;
}

/* 瀏覽器內容區域 */
.browser-content {
    position: absolute;
    top: 95px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    background: var(--light-gray);
    border-radius: 4px;
    overflow: hidden;
}

/* 導航模擬 */
.content-header {
    height: 40px;
    background: var(--white);
    border-bottom: 1px solid var(--medium-gray);
    display: flex;
    align-items: center;
    padding: 0 15px;
}

.nav-simulation {
    display: flex;
    gap: 20px;
}

.nav-item {
    width: 40px;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 4px;
    animation: pulse 2s ease-in-out infinite;
}

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

.nav-item:nth-child(3) {
    animation-delay: 0.6s;
}

/* 內容主體模擬 */
.content-body {
    padding: 20px 15px;
}

.hero-section-sim {
    margin-bottom: 20px;
}

.title-sim {
    width: 80%;
    height: 12px;
    background: var(--accent-blue);
    border-radius: 6px;
    margin-bottom: 8px;
    opacity: 0.8;
}

.subtitle-sim {
    width: 60%;
    height: 8px;
    background: var(--dark-gray);
    border-radius: 4px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.button-sim {
    width: 50px;
    height: 20px;
    background: var(--accent-blue);
    border-radius: 10px;
    opacity: 0.9;
}

/* 功能卡片模擬 */
.features-sim {
    display: flex;
    gap: 8px;
}

.feature-card {
    flex: 1;
    height: 60px;
    background: var(--white);
    border-radius: 6px;
    border: 1px solid var(--medium-gray);
    position: relative;
    animation: slideUp 3s ease-in-out infinite;
}

.feature-card:nth-child(2) {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) {
    animation-delay: 1s;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 2px;
    opacity: 0.7;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 18px;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--medium-gray);
    border-radius: 1px;
}

/* 動畫效果 */
@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scaleX(1);
    }
    50% {
        opacity: 1;
        transform: scaleX(1.1);
    }
}

@keyframes slideUp {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-2px);
        opacity: 1;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease-out 1.5s forwards;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border: 2px solid var(--accent-blue);
    border-top: none;
    border-right: none;
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-black);
    border-color: var(--primary-black);
}

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

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid var(--medium-gray);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-blue);
}

.service-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: var(--spacing-xs) 0;
    color: var(--dark-gray);
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* About Section */
.about-principles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.principle {
    text-align: center;
    padding: var(--spacing-xl);
}

.principle h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-md);
}

.principle p {
    color: var(--dark-gray);
    line-height: 1.6;
}

.about-usp {
    background-color: var(--light-gray);
    padding: var(--spacing-2xl);
    border-radius: 12px;
    border-left: 4px solid var(--accent-blue);
}

.about-usp h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-lg);
}

.about-usp ul {
    list-style: none;
}

.about-usp li {
    padding: var(--spacing-sm) 0;
    color: var(--dark-gray);
}

/* Portfolio Section */
.portfolio {
    background-color: var(--light-gray);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.portfolio-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    height: 200px;
    background-color: var(--medium-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-gray);
    font-weight: 500;
    overflow: hidden;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.portfolio-content {
    padding: var(--spacing-xl);
}

.portfolio-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-sm);
}

.portfolio-type {
    font-size: var(--font-size-sm);
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.portfolio-description {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.result-tag {
    display: inline-block;
    background-color: var(--accent-blue);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--primary-black);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--medium-gray);
    border-radius: 8px;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.contact-info {
    padding-left: var(--spacing-xl);
}

.contact-item {
    margin-bottom: var(--spacing-xl);
}

.contact-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-md);
}

.contact-item p {
    color: var(--dark-gray);
    line-height: 1.6;
}

.contact-item ol {
    color: var(--dark-gray);
    padding-left: var(--spacing-lg);
}

.contact-item li {
    margin-bottom: var(--spacing-sm);
}

/* Line 官方帳號按鈕樣式 */
.line-contact {
    margin-top: var(--spacing-lg);
}

.line-contact h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--spacing-md);
}

.line-btn {
    display: block;
    text-decoration: none;
    background: linear-gradient(135deg, #00B900, #00C300);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
}

.line-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #00A000, #00B200);
}

.line-btn-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.line-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.line-text {
    display: flex;
    flex-direction: column;
    color: white;
}

.line-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.line-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Footer */
.footer {
    background-color: var(--primary-black);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo .logo-img {
    height: 45px;
    width: auto;
    max-width: 200px;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--medium-gray);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--secondary-black);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--medium-gray);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(-45deg);
    }
    40% {
        transform: translateY(-10px) rotate(-45deg);
    }
    60% {
        transform: translateY(-5px) rotate(-45deg);
    }
}

@keyframes slideInFromLeft {
    0% {
        transform: translateX(-100%);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes menuItemSlideIn {
    0% {
        transform: translateX(-20px);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Medium screens - 中等螢幕調整 */
@media (max-width: 1024px) {
    .hero-container {
        gap: var(--spacing-xl);
    }
    
    .hero-animation {
        width: 300px;
        height: 300px;
    }
    
    .hero-description {
        font-size: var(--font-size-xl);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.9) 100%);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        padding: var(--spacing-xl) 0;
        height: auto;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
        gap: 0;
        border-right: 1px solid rgba(0, 123, 255, 0.1);
    }

    .nav-menu.active {
        left: 0;
        animation: slideInFromLeft 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-item {
        width: 100%;
        height: auto;
        margin: 0;
        padding: 0;
        position: relative;
        transition: all 0.3s ease;
        transform: translateX(-20px);
        opacity: 0;
    }

    .nav-menu.active .nav-item {
        animation: menuItemSlideIn 0.4s ease forwards;
    }

    .nav-menu.active .nav-item:nth-child(1) { animation-delay: 0.1s; }
    .nav-menu.active .nav-item:nth-child(2) { animation-delay: 0.15s; }
    .nav-menu.active .nav-item:nth-child(3) { animation-delay: 0.2s; }
    .nav-menu.active .nav-item:nth-child(4) { animation-delay: 0.25s; }
    .nav-menu.active .nav-item:nth-child(5) { animation-delay: 0.3s; }

    .nav-item::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        width: 0;
        height: 100%;
        background: linear-gradient(90deg, var(--accent-blue), #4dabf7);
        transition: width 0.3s ease;
        z-index: -1;
    }

    .nav-item:hover::before {
        width: 100%;
    }

    .nav-item::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 60%;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(0, 123, 255, 0.15), transparent);
    }

    .nav-item:last-child::after {
        display: none;
    }

    .nav-link {
        width: 100%;
        height: auto;
        padding: var(--spacing-lg) var(--spacing-2xl);
        font-size: var(--font-size-lg);
        font-weight: 500;
        display: block;
        text-align: center;
        position: relative;
        transition: all 0.3s ease;
        border-radius: 0;
    }

    .nav-link::after {
        display: none;
    }

    .nav-link:hover {
        color: var(--white);
        background-color: transparent;
        transform: translateY(-2px);
        text-shadow: 0 2px 10px rgba(255, 255, 255, 0.3);
    }

    .nav-link::before {
        content: '→';
        position: absolute;
        left: var(--spacing-lg);
        top: 50%;
        transform: translateY(-50%) translateX(-15px);
        opacity: 0;
        transition: all 0.3s ease;
        color: var(--white);
        font-weight: bold;
        font-size: 0.9em;
    }

    .nav-item:hover .nav-link::before {
        transform: translateY(-50%) translateX(0);
        opacity: 1;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
        padding: var(--spacing-sm);
        border-radius: 8px;
        transition: all 0.3s ease;
        background-color: transparent;
    }

    .hamburger:hover {
        background-color: var(--light-gray);
        transform: scale(1.05);
    }

    .hamburger.active {
        background-color: var(--accent-blue);
    }

    .hamburger.active .bar {
        background-color: var(--white);
    }

    /* Mobile menu overlay */
    .nav-menu::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: linear-gradient(135deg, rgba(0, 123, 255, 0.05) 0%, rgba(0, 0, 0, 0.15) 100%);
        backdrop-filter: blur(10px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: -1;
    }

    .nav-menu.active::before {
        opacity: 1;
        visibility: visible;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-title-main {
        font-size: var(--font-size-3xl);
    }

    .hero-description {
        font-size: var(--font-size-xl);
        line-height: 1.7;
        letter-spacing: 0.6px;
    }

    .hero-animation {
        width: 300px;
        height: 300px;
    }

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

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

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .contact-info {
        padding-left: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-principles {
        grid-template-columns: 1fr;
    }

    .browser-address-bar {
        top: 35px;
        left: 10px;
        right: 10px;
        height: 24px;
        padding: 0 8px;
    }

    .address-input {
        font-size: 10px;
    }

    .browser-content {
        top: 70px;
        left: 10px;
        right: 10px;
        bottom: 10px;
    }

    .content-header {
        height: 30px;
        padding: 0 10px;
    }

    .nav-simulation .nav-item {
        width: 25px;
        height: 6px;
    }

    .content-body {
        padding: 15px 10px;
    }

    .feature-card {
        height: 45px;
    }
}

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

    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .nav-logo .logo-img {
        height: 35px;
        max-width: 160px;
    }

    .hero-container {
        padding: 0 var(--spacing-md);
    }

    .hero-title-main {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .service-card,
    .about-usp {
        padding: var(--spacing-lg);
    }

    .footer-logo .logo-img {
        height: 35px;
        max-width: 160px;
    }
}