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

        :root {
            --color1: #5b626c;
            --color2: #a9967c;
            --color3: #381120;
            --color4: #5c4f4b;
            --color5: #838c9a;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--color4);
        }

        .site-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 2rem;
            background-color: var(--color3);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color2);
            letter-spacing: 1px;
        }

        .main-nav ul {
            display: flex;
            list-style-type: none;
            gap: 2rem;
        }

        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }

        .main-nav a:hover {
            color: var(--color2);
        }

        .menu-toggle {
            display: none;
            font-size: 30px;
            cursor: pointer;
            color: var(--color2);
        }

        .mobile-navigation {
            visibility: hidden;
            opacity: 0;
            transform: translateY(-20px);
            transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
            background-color: var(--color4);
            color: white;
            padding: 2rem;
            position: absolute;
            top: 70px;
            right: 0;
            width: 280px;
            z-index: 999;
        }

        .mobile-navigation.active {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
        }

        .mobile-nav-list ul {
            list-style-type: none;
        }

        .mobile-nav-list li {
            margin: 1rem 0;
        }

        .mobile-nav-list a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
        }

        .hero-section {
            min-height: 100vh;
            background: linear-gradient(135deg, var(--color3) 0%, var(--color4) 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background-color: var(--color2);
            opacity: 0.1;
            border-radius: 50%;
            top: -200px;
            right: -200px;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background-color: var(--color1);
            opacity: 0.05;
            border-radius: 50%;
            bottom: -100px;
            left: -100px;
        }

        .decorative-line {
            position: absolute;
            height: 2px;
            background-color: var(--color2);
            opacity: 0.3;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        @media (max-width: 968px) {
            .about-grid {
                grid-template-columns: 1fr;
            }
        }

        .curriculum-layout {
            position: relative;
            padding: 6rem 2rem;
        }

        .curriculum-layout::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--color2);
            opacity: 0.3;
        }

        .curriculum-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            margin-bottom: 4rem;
            position: relative;
        }

        .curriculum-item:nth-child(even) .curriculum-content {
            order: 2;
        }

        .curriculum-item:nth-child(even) .curriculum-visual {
            order: 1;
        }

        @media (max-width: 968px) {
            .curriculum-layout::before {
                display: none;
            }
            .curriculum-item {
                grid-template-columns: 1fr;
            }
            .curriculum-item:nth-child(even) .curriculum-content {
                order: 1;
            }
            .curriculum-item:nth-child(even) .curriculum-visual {
                order: 2;
            }
        }

        .shape-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            position: absolute;
        }

        .shape-square {
            width: 60px;
            height: 60px;
            position: absolute;
            transform: rotate(45deg);
        }

        .zigzag-border {
            position: relative;
        }

        .zigzag-border::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 10px;
            background: repeating-linear-gradient(
                45deg,
                var(--color2),
                var(--color2) 10px,
                transparent 10px,
                transparent 20px
            );
        }

        .contact-notification {
            position: fixed;
            top: 100px;
            right: 2rem;
            background-color: var(--color3);
            color: white;
            padding: 1.5rem 2rem;
            border-radius: 8px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            transform: translateX(400px);
            transition: transform 0.5s ease;
            z-index: 2000;
            max-width: 350px;
        }

        .contact-notification.show {
            transform: translateX(0);
        }

        .process-step {
            position: relative;
            padding: 2rem;
            background-color: white;
            border-left: 4px solid var(--color2);
        }

        .process-step::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 2rem;
            width: 20px;
            height: 20px;
            background-color: var(--color2);
            border-radius: 50%;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }