:root {
    --primary-color: #2ECC71;
    --secondary-color: #27AE60;
    --text-color: #E1E1E1;
    --bg-color: #121212;
    --dark-surface: #1E1E1E;
    --darker-surface: #181818;
    --white: #ffffff;
    --danger-color: #e74c3c;
    --gradient: linear-gradient(135deg, #2ECC71, #27AE60);
    --card-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

nav {
    background-color: var(--dark-surface);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    position: relative;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo img {
    height: 60px;
    width: auto;
}

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

.menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

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

.burger-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

main {
    margin-top: 0;
    min-height: calc(100vh - 160px);
}

.hero {
    text-align: center;
    padding: 6rem 1rem;
    background: var(--gradient);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero::before {
    display: none;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.hero-description {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.app-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.store-badge img {
    height: 45px;
    width: auto;
    transition: transform 0.3s ease;
    filter: brightness(0) invert(1);
}

.store-badge:hover img {
    transform: scale(1.05);
    opacity: 0.9;
}

.app-preview {
    margin-top: 2rem;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
}

.app-preview::before {
    display: none;
}

.app-preview img {
    max-width: 500px;
    height: auto;
    mix-blend-mode: multiply;
    filter: contrast(1) brightness(1);
    z-index: 2;
}

.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

.features {
    padding: 6rem 1rem;
    background: var(--darker-surface);
}

.feature {
    background: var(--dark-surface);
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.feature:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature p {
    color: var(--text-color);
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.feature-preview {
    margin-top: 2rem;
}

.feature-preview img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.05);
}

.cta {
    background: var(--darker-surface);
    padding: 6rem 1rem;
    text-align: center;
    color: var(--white);
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

footer {
    background: var(--dark-surface);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 4rem 0;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    opacity: 0.9;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    opacity: 0.9;
    transition: color 0.3s ease;
}

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

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

.social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: color 0.3s;
    opacity: 0.8;
    text-decoration: none;
}

.social-links a:hover {
    color: var(--primary-color);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 2rem;
    text-align: center;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
    
    .feature {
        padding: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .app-preview img {
        max-width: 380px;
    }
    
    .app-badges {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .logo img {
        height: 50px;
    }
    
    .store-badge img {
        height: 40px;
    }

    .burger-menu {
        display: block;
    }

    .menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--dark-surface);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        border-top: 1px solid rgba(255,255,255,0.1);
        box-shadow: var(--card-shadow);
    }

    .menu.active {
        display: flex;
    }

    .menu a {
        width: 100%;
        text-align: center;
        padding: 0.5rem;
    }

    .menu a:hover {
        background: rgba(46, 204, 113, 0.1);
        border-radius: 4px;
    }
}

.delete-account-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--dark-surface);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255,255,255,0.05);
}

.warning-box {
    background-color: rgba(255, 243, 205, 0.1);
    border: 1px solid rgba(255, 243, 205, 0.2);
    padding: 1.5rem;
    border-radius: 4px;
    margin: 2rem 0;
    color: #ffeeba;
}

.warning-box ul {
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.delete-form {
    margin-top: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--darker-surface);
    color: var(--text-color);
}

.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

.delete-button {
    background-color: var(--danger-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.delete-button:hover {
    background-color: #c0392b;
}

.message {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 2rem;
    border-radius: 4px;
    color: var(--white);
    font-weight: 500;
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
}

.message.success {
    background-color: var(--primary-color);
}

.message.error {
    background-color: var(--danger-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.launch-screen {
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    padding: 2rem;
    overflow: hidden;
}

.launch-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6rem;
}

.launch-text {
    flex: 0.8;
    color: var(--white);
    text-align: left;
}

.launch-text h1 {
    font-size: 5.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.launch-description {
    font-size: 1.8rem;
    opacity: 0.9;
    max-width: 500px;
    line-height: 1.6;
}

.launch-preview {
    flex: 1.2;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.launch-preview img {
    max-width: 600px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.2));
}

.app-badges {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

.store-badge img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
    filter: brightness(0) invert(1);
}

.store-badge:hover img {
    transform: scale(1.05);
    opacity: 0.9;
}

@media (max-width: 1200px) {
    .launch-preview img {
        max-width: 500px;
    }
    
    .launch-text h1 {
        font-size: 4.5rem;
    }
    
    .launch-description {
        font-size: 1.6rem;
    }
}

@media (max-width: 1024px) {
    .launch-content {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }

    .launch-text {
        text-align: center;
    }

    .launch-text h1 {
        font-size: 4rem;
    }

    .launch-description {
        margin: 0 auto;
        font-size: 1.4rem;
    }
}

@media (max-width: 768px) {
    .launch-text h1 {
        font-size: 3.2rem;
    }

    .launch-description {
        font-size: 1.2rem;
    }

    .launch-preview img {
        max-width: 400px;
    }
}

@media (max-width: 480px) {
    .launch-preview img {
        max-width: 320px;
    }
    
    .launch-text h1 {
        font-size: 2.8rem;
    }
}