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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #2c2c2c 0%, #1a1a1a 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.logo img {
    height: 50px;
    width: auto;
}

/* Hamburger Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-menu a:hover {
    color: #000;
    background: rgba(0, 0, 0, 0.1);
}

/* Main Content */
main {
    margin-top: 80px;
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

.content-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 3rem;
    margin: 2rem auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    max-width: 800px;
}

.content-section.hidden {
    display: none;
}

h1 {
    color: #333;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

h2 {
    color: #000;
    font-size: 1.8rem;
    margin: 2rem 0 1rem 0;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 0.5rem;
}

h3 {
    color: #555;
    font-size: 1.3rem;
    margin: 1.5rem 0 0.5rem 0;
}

p {
    margin-bottom: 1rem;
    text-align: justify;
}

ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

.contact-info {
    background: linear-gradient(135deg, #333, #000);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 2rem 0;
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0.5rem 0;
    }

    .content-section {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    nav {
        padding: 1rem;
    }
}

/* Smooth scrolling and animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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