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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

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

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    height: 50px;
}

.logo img {
    height: 100%;
    width: auto;
}

.logo span {
    margin-left: 0.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    position: relative;
}

.nav-links a:hover {
    opacity: 0.8;
    background: rgba(255,255,255,0.1);
}

.nav-links a.active {
    color: #ff6b35;
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: #ff6b35;
    border-radius: 2px;
}

.auth-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.login-btn, .signup-btn {
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.login-btn {
    background: #ff6b35;
    color: white;
}

.signup-btn {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.login-btn:hover {
    background: #ff8c5a;
    transform: translateY(-2px);
}

.signup-btn:hover {
    background: white;
    color: #1e3c72;
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    transition: all 0.3s;
    border-radius: 3px;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    padding: 5rem 2rem 2rem;
    transition: right 0.3s ease;
    z-index: 1000;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu li {
    margin: 1.5rem 0;
}

.mobile-menu a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    display: block;
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
}

.mobile-menu a:hover {
    background: rgba(255,255,255,0.1);
}

.mobile-menu a.active {
    background: rgba(255,107,53,0.3);
    color: #ff6b35;
    font-weight: 600;
}

.mobile-menu a.active::after {
    content: '✓';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #ff6b35;
    font-weight: bold;
    font-size: 1.1rem;
}

.hero {
    background: linear-gradient(rgba(30,60,114,0.9), rgba(42,82,152,0.9)), url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%23e3f2fd" width="1200" height="600"/><circle fill="%231e3c72" opacity="0.1" cx="200" cy="150" r="80"/><circle fill="%232a5298" opacity="0.1" cx="1000" cy="400" r="120"/><path fill="%23bbdefb" opacity="0.3" d="M0 300 Q300 200 600 350 Q900 450 1200 300 L1200 600 L0 600 Z"/></svg>');
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 2rem;
    margin-top: 70px;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
}

.hero-content h1 {
    font-size: clamp(1.8rem, 4.2vw, 3.2rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-content p {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    margin: 0 auto 2.5rem;
    max-width: 800px;
    display: block;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.cta-primary {
    background: #ff6b35;
    color: white;
}

.cta-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.cta-secondary:hover {
    background: white;
    color: #1e3c72;
}

.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: #1e3c72;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    text-align: center;
    transition: all 0.3s;
    border-top: 4px solid #ff6b35;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    color: #ff6b35;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e3c72;
}

.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}

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

footer {
    background: #1a1a1a;
    color: white;
    text-align: center;
    padding: 2rem;
}

@media (max-width: 1200px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
    }

    .auth-buttons {
        gap: 0.3rem;
    }

    .login-btn, .signup-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

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

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

@media (max-width: 478px) {
    .hero {
        padding: 5rem 2rem 2rem 2rem;
    }
}

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

.feature-card {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card:nth-child(2), .developer-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3), .developer-card:nth-child(3) { animation-delay: 0.4s; }
.feature-card:nth-child(4) { animation-delay: 0.6s; }