/* Reset and base styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --text-color: #333;
    --bg-color: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --mobile-menu-bg: #ffffff;
    --mobile-menu-border: rgba(255, 255, 255, 0.3);
    --mobile-menu-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary-color: #64b5f6;
    --secondary-color: #1a237e;
    --accent-color: #ff5252;
    --text-color: #ffffff;
    --bg-color: #121212;
    --card-bg: rgba(30, 30, 30, 0.7);
    --glass-bg: rgba(0, 0, 0, 0.2);
    --glass-border: rgba(255, 255, 255, 0.1);
    --mobile-menu-bg: #121212;
    --mobile-menu-border: rgba(255, 255, 255, 0.1);
    --mobile-menu-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    /*background: var(--glass-bg); */
    /*backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);*/
    /*border-bottom: 1px solid var(--glass-border);*/
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

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

.nav-links li {
    margin: 0 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #2c3e50;
    margin: 5px;
    transition: all 0.3s ease;
}

.nav-links.nav-active {
    display: flex !important;
    flex-direction: column !important;
    position: absolute !important;
    right: 0 !important;
    top: 70px !important;
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    width: 100% !important;
    align-items: center !important;
    padding: 2rem 0 !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    transform-origin: top !important;
    transform: scaleY(0) !important;
    opacity: 0 !important;
    transition: transform 0.3s ease, opacity 0.3s ease !important;
    pointer-events: none !important;
}

[data-theme="dark"] .nav-links.nav-active {
    background: rgba(18, 18, 18, 0.85) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3) !important;
}

.nav-links.nav-active.active {
    transform: scaleY(1) !important;
    opacity: 1 !important;
    pointer-events: all !important;
}

.nav-links li {
    margin: 1rem 0;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-links.active li {
    opacity: 1;
    transform: translateY(0);
}

/* Reverse animations for closing */
.nav-links:not(.active) li {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-links li:nth-child(1) { transition-delay: 0.1s; }
.nav-links li:nth-child(2) { transition-delay: 0.2s; }
.nav-links li:nth-child(3) { transition-delay: 0.3s; }
.nav-links li:nth-child(4) { transition-delay: 0.4s; }
.nav-links li:nth-child(5) { transition-delay: 0.5s; }

/* Reverse delays for closing */
.nav-links:not(.active) li:nth-child(1) { transition-delay: 0s; }
.nav-links:not(.active) li:nth-child(2) { transition-delay: 0s; }
.nav-links:not(.active) li:nth-child(3) { transition-delay: 0s; }
.nav-links:not(.active) li:nth-child(4) { transition-delay: 0s; }
.nav-links:not(.active) li:nth-child(5) { transition-delay: 0s; }

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
    transition: transform 0.3s ease;
}

.toggle .line2 {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
    transition: transform 0.3s ease;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0 1rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><path fill="%23FFFFFF" d="M44.7,-76.4C58.8,-69.2,71.8,-59.1,79.6,-45.8C87.4,-32.5,90,-16.3,89.4,-0.3C88.8,15.7,85,31.3,77.1,45.2C69.2,59.1,57.2,71.2,43.1,77.6C29,84,14.5,84.7,-0.7,85.9C-15.9,87.1,-31.8,88.8,-45.6,82.4C-59.4,76,-71.2,61.5,-79.1,45.6C-87,29.7,-91,12.3,-89.8,-4.4C-88.6,-21.1,-82.2,-37.2,-71.8,-49.9C-61.4,-62.6,-47,-71.9,-32.3,-77.2C-17.6,-82.5,-2.6,-83.8,11.2,-79.9C25,-76,38.5,-66.9,44.7,-76.4Z" transform="translate(100 100)" /></svg>') no-repeat center center;
    opacity: 0.1;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #64b5f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Services Section */
.services {
    padding: 5rem 5%;
    background-color: var(--bg-color);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.service-card:nth-child(1) {
    grid-column: 1 / 3;
    grid-row: 1;
}

.service-card:nth-child(2) {
    grid-column: 3;
    grid-row: 1 / 3;
}

.service-card:nth-child(3) {
    grid-column: 1;
    grid-row: 2;
}

.service-card:nth-child(4) {
    grid-column: 2;
    grid-row: 2;
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.service-card p {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.9;
}

/* Portfolio Section */
.portfolio {
    padding: 5rem 5%;
    background: var(--bg-color);
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition: all 0.3s ease;
}

.portfolio-item img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.portfolio-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    bottom: 0;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

/* About Section */
.about {
    padding: 5rem 5%;
    background: var(--bg-color);
}

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.skills {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

.skills h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.skills ul {
    list-style: none;
}

.skills li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    transition: transform 0.3s ease;
}

.skills li:hover {
    transform: translateX(10px);
}

.skills li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Contact Section */
.contact {
    padding: 5rem 5%;
    background: var(--bg-color);
}

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

.contact-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    font-size: 1rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-color);
    transition: all 0.3s ease;
    box-shadow: var(--glass-shadow);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.info-item:hover {
    transform: translateX(10px);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: white;
    padding: 2rem 5%;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

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

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

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

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: rotate(180deg);
}

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

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .burger {
        display: block;
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .service-card:nth-child(1),
    .service-card:nth-child(2),
    .service-card:nth-child(3),
    .service-card:nth-child(4) {
        grid-column: 1;
        grid-row: auto;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}