@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@300..700&display=swap');

:root {
    --background-color: #e0e4e9;
    --main-background: #ffffff;
    --text-color: #000000;
    --title-color: #0066ff;
    --card-background: #80adf1;
    --card-border: #000000;
    --card-hover-bg: #000000;
    --card-hover-text: #0066ff;
    --nav-background: rgba(255, 255, 255, 0.95);
    --footer-background: #2d2d2d;
    --footer-text: #ffffff;
}

[data-theme="dark"] {
    --background-color: #1a1a1a;
    --main-background: #2d2d2d;
    --text-color: #ffffff;
    --title-color: #4d94ff;
    --card-background: #404040;
    --card-border: #ffffff;
    --card-hover-bg: #ffffff;
    --card-hover-text: #0066ff;
    --nav-background: rgba(45, 45, 45, 0.95);
    --footer-background: #1a1a1a;
    --footer-text: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fira Code', monospace;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navigation Styles */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--nav-background);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--title-color);
    text-decoration: none;
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

.logo::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background: linear-gradient(to right, var(--title-color), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.logo:hover::after {
    transform: scaleX(1);
}

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

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--title-color), transparent);
    border-radius: 50px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-links a:hover {
    color: var(--title-color);
    transform: translateY(-2px);
}

.nav-links a:hover::before {
    opacity: 0.1;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Dark Mode Toggle Styles */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 50px;
    background: rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.theme-switch-wrapper:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: scale(1.05);
}

.theme-switch {
    display: inline-block;
    height: 34px;
    position: relative;
    width: 60px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #ccc;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 26px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 26px;
    border-radius: 50%;
}

.slider:after {
    content: "☀️";
    font-size: 16px;
    position: absolute;
    top: 8px;
    left: 8px;
    transition: .4s;
}

input:checked + .slider:after {
    content: "🌙";
    left: 36px;
}

input:checked + .slider {
    background-color: #0066ff;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    text-align: center;
    background-color: var(--main-background);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    font-size: 3.5rem;
    color: var(--title-color);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    background: linear-gradient(45deg, var(--title-color), #4d94ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    opacity: 0.9;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.8;
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    background: linear-gradient(45deg, var(--title-color), #4d94ff);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.cta-button:hover::before {
    transform: translateX(100%);
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background-color: var(--background-color);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: 
        radial-gradient(circle at 0% 0%, rgba(0, 102, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(0, 102, 255, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.features h2 {
    text-align: center;
    color: var(--title-color);
    margin-bottom: 3rem;
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.features h2::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 3px;
    bottom: -10px;
    left: 20%;
    background: linear-gradient(to right, transparent, var(--title-color), transparent);
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.feature-card {
    background-color: var(--card-background);
    padding: 2.5rem;
    border-radius: 20px;
    border: 2px solid var(--card-border);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.feature-card:hover::before {
    transform: translateX(100%);
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    background-color: var(--card-hover-bg);
    color: var(--card-hover-text);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.feature-card h3 {
    color: var(--title-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.feature-card p {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
}

/* Footer */
footer {
    background-color: var(--footer-background);
    color: var(--footer-text);
    padding: 4rem 2rem 1rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--title-color), transparent);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.footer-section h3 {
    color: var(--title-color);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
    position: relative;
    display: inline-block;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(to right, var(--title-color), transparent);
    border-radius: 2px;
}

.footer-section a {
    color: var(--footer-text);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: all 0.3s ease;
    opacity: 0.8;
}

.footer-section a:hover {
    color: var(--title-color);
    opacity: 1;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--nav-background);
        padding: 1rem;
        text-align: center;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        animation: slideDown 0.3s ease-out;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links a {
        width: 100%;
        padding: 1rem;
        border-radius: 10px;
    }

    .mobile-menu-btn {
        display: block;
    }

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

    .tagline {
        font-size: 1.4rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .features h2 {
        font-size: 2rem;
    }

    .feature-card {
        padding: 2rem;
    }
}