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

            :root {
                --cream: #F9F7F4;
                --sage: #8B9D83;
                --forest: #4A6741;
                --sky: #A8CACA;
                --academic-blue: #5B8FA3;
                --deep-blue: #2C4A52;
                --earth: #C8B99A;
                --light-sage: #D4E2D4;
            }

            body {
                font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
                background: linear-gradient(135deg, var(--cream) 0%, #FDFCFA 100%);
                color: var(--deep-blue);
                line-height: 1.7;
                overflow-x: hidden;
            }

            /* Fixed Navigation */
            .site-navigation {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                background: rgba(249, 247, 244, 0.95);
                -webkit-backdrop-filter: blur(12px);
                backdrop-filter: blur(12px);
                z-index: 1000;
                padding: 1.2rem 5%;
                box-shadow: 0 2px 20px rgba(75, 103, 65, 0.08);
                border-bottom: 1px solid rgba(139, 157, 131, 0.15);
            }

            .nav-content {
                max-width: 1400px;
                margin: 0 auto;
                display: flex;
                align-items: center;
                gap: 2rem;
                flex-wrap: wrap;
            }

            .nav-name {
                font-size: 1.3rem;
                font-weight: 700;
                color: var(--forest);
                letter-spacing: -0.02em;
                text-decoration: none;
                transition: color 0.3s ease;
            }

            .nav-name:hover {
                color: var(--sage);
            }

            .nav-subtitle {
                font-size: 1.1rem;
                font-weight: 600;
                color: var(--academic-blue);
            }

            .nav-separator {
                color: var(--sage);
                opacity: 0.5;
            }

            .nav-links {
                display: flex;
                gap: 1.8rem;
                list-style: none;
                flex-wrap: wrap;
            }

            .nav-links a {
                text-decoration: none;
                color: var(--academic-blue);
                font-size: 1rem;
                font-weight: 500;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                padding: 0.5rem 1rem;
                border-radius: 8px;
            }

            .nav-links a:hover {
                background: var(--light-sage);
                color: var(--forest);
                transform: translateY(-1px);
            }

            /* Hero Section */
            .hero {
                margin-top: 5rem;
                padding: 6rem 5% 4rem;
                max-width: 1400px;
                margin-left: auto;
                margin-right: auto;
                display: grid;
                grid-template-columns: 1fr 400px;
                gap: 4rem;
                align-items: center;
            }

            .hero-content h1 {
                font-size: 4.5rem;
                font-weight: 800;
                color: var(--forest);
                letter-spacing: -0.03em;
                line-height: 1.1;
                margin-bottom: 1.5rem;
            }

            .hero-emoji {
                font-size: 3.5rem;
                display: inline-block;
                animation: gentle-bounce 3s ease-in-out infinite;
            }

            @keyframes gentle-bounce {

                0%,
                100% {
                    transform: translateY(0);
                }

                50% {
                    transform: translateY(-10px);
                }
            }

            .hero-description {
                font-size: 1.2rem;
                color: var(--academic-blue);
                line-height: 1.8;
                background: rgba(212, 226, 212, 0.3);
                padding: 2rem;
                border-radius: 16px;
                border-left: 4px solid var(--sage);
            }

            .hero-svg {
                width: 400px;
                height: 400px;
            }

            /* Language Selector */
            .lang-selector {
                display: flex;
                gap: 0.5rem;
                margin: 2rem 0;
                justify-content: center;
            }

            .lang-btn {
                padding: 0.7rem 1.5rem;
                background: var(--light-sage);
                border: 2px solid transparent;
                border-radius: 12px;
                color: var(--forest);
                text-decoration: none;
                font-weight: 600;
                transition: all 0.3s ease;
            }

            .lang-btn.active {
                background: var(--forest);
                color: var(--cream);
                border-color: var(--sage);
            }

            .lang-btn:hover {
                transform: translateY(-2px);
                box-shadow: 0 6px 20px rgba(75, 103, 65, 0.15);
            }

            /* Section Styling */
            .content-section {
                max-width: 1400px;
                margin: 4rem auto;
                padding: 0 5%;
            }

            .section-header {
                text-align: center;
                margin-bottom: 3rem;
            }

            .section-title {
                font-size: 2.5rem;
                font-weight: 700;
                color: var(--forest);
                letter-spacing: -0.02em;
                display: inline-block;
                position: relative;
                padding-bottom: 1rem;
            }

            .section-title::after {
                content: '';
                position: absolute;
                bottom: 0;
                left: 50%;
                transform: translateX(-50%);
                width: 60%;
                height: 3px;
                background: linear-gradient(90deg, transparent, var(--sage), transparent);
                border-radius: 2px;
            }

            .year-badge {
                display: inline-block;
                background: linear-gradient(135deg, var(--sage), var(--forest));
                color: white;
                padding: 0.8rem 2rem;
                border-radius: 50px;
                font-size: 1.4rem;
                font-weight: 700;
                margin: 2rem 0 2rem 0;
                box-shadow: 0 4px 15px rgba(75, 103, 65, 0.25);
            }

            .subsection-title {
                font-size: 1.4rem;
                font-weight: 600;
                color: var(--academic-blue);
                margin: 2.5rem 0 1.5rem;
                padding-left: 1rem;
                border-left: 4px solid var(--sage);
            }

            /* Bento Grid Layout */
            .courses-grid {
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
                gap: 2rem;
                margin: 2rem 0;
            }

            .course-card {
                background: white;
                border-radius: 20px;
                overflow: hidden;
                border: 2px solid rgba(139, 157, 131, 0.15);
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                position: relative;
            }

            .course-card a {
                text-decoration: none;
                color: inherit;
                display: block;
            }

            .course-card::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background:
                    radial-gradient(circle at 20% 50%, rgba(139, 157, 131, 0.05) 0%, transparent 50%),
                    radial-gradient(circle at 80% 80%, rgba(168, 202, 202, 0.05) 0%, transparent 50%);
                opacity: 0;
                transition: opacity 0.4s ease;
                pointer-events: none;
            }

            .course-card:hover::before {
                opacity: 1;
            }

            .course-card:hover {
                transform: translateY(-12px) scale(1.02);
                box-shadow: 0 20px 40px rgba(75, 103, 65, 0.2);
                border-color: var(--sage);
                cursor: pointer;
            }

            .course-icon {
                width: 100%;
                height: 200px;
                background: linear-gradient(135deg, var(--light-sage), var(--sky));
                display: flex;
                align-items: center;
                justify-content: center;
                position: relative;
                overflow: hidden;
            }

            .course-icon img {
                width: 100%;
                height: 100%;
                object-fit: contain;
                background: white;
            }

            .course-icon-shape {
                width: 100px;
                height: 100px;
                background: rgba(255, 255, 255, 0.3);
                border-radius: 50% 40% 50% 40%;
                animation: morph 6s ease-in-out infinite;
            }

            @keyframes morph {

                0%,
                100% {
                    border-radius: 50% 40% 50% 40%;
                    transform: rotate(0deg);
                }

                25% {
                    border-radius: 40% 50% 40% 50%;
                    transform: rotate(90deg);
                }

                50% {
                    border-radius: 50% 40% 50% 40%;
                    transform: rotate(180deg);
                }

                75% {
                    border-radius: 40% 50% 40% 50%;
                    transform: rotate(270deg);
                }
            }

            .course-content {
                padding: 2rem;
            }

            .course-title {
                font-size: 1.5rem;
                font-weight: 700;
                color: var(--forest);
                margin-bottom: 0.8rem;
                letter-spacing: -0.01em;
                line-height: 1.3;
            }

            .course-level {
                font-size: 1rem;
                color: var(--academic-blue);
                margin-bottom: 0.5rem;
            }

            /* Event Cards */
            .event-card {
                background: white;
                border-radius: 20px;
                padding: 2rem;
                margin: 1.5rem 0;
                border: 2px solid rgba(139, 157, 131, 0.15);
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                display: grid;
                grid-template-columns: 120px 1fr;
                gap: 2rem;
                align-items: start;
            }

            .event-card:hover {
                transform: translateY(-8px);
                box-shadow: 0 15px 35px rgba(75, 103, 65, 0.15);
                border-color: var(--sage);
            }

            .event-icon {
                width: 120px;
                height: 120px;
                background: linear-gradient(135deg, var(--light-sage), var(--earth));
                border-radius: 20px;
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 3rem;
                animation: gentle-rotate 8s ease-in-out infinite;
            }

            @keyframes gentle-rotate {

                0%,
                100% {
                    transform: rotate(0deg);
                }

                50% {
                    transform: rotate(5deg);
                }
            }

            .event-content h3 {
                font-size: 1.4rem;
                color: var(--forest);
                margin-bottom: 1rem;
                font-weight: 700;
            }

            .event-detail {
                margin: 0.5rem 0;
                color: var(--academic-blue);
                font-size: 1rem;
            }

            .event-detail a {
                color: var(--forest);
                font-weight: 600;
                text-decoration: none;
            }

            .event-detail a:hover {
                color: var(--sage);
                text-decoration: underline;
            }

            .event-label {
                font-weight: 600;
                color: var(--sage);
            }

            .separator {
                height: 2px;
                background: linear-gradient(90deg, transparent, var(--sage), transparent);
                margin: 3rem auto;
                width: 80%;
                border-radius: 2px;
            }

            /* Footer */
            footer {
                background: linear-gradient(135deg, var(--forest), var(--deep-blue));
                color: white;
                padding: 3rem 5%;
                margin-top: 6rem;
                text-align: center;
            }

            .footer-content {
                max-width: 1400px;
                margin: 0 auto;
            }

            footer a {
                color: var(--light-sage);
                text-decoration: none;
                transition: color 0.3s ease;
            }

            footer a:hover {
                color: white;
            }

            .footer-lang {
                margin-bottom: 2rem;
            }

            /* Responsive Design */
            @media (max-width: 1024px) {
                .hero {
                    grid-template-columns: 1fr;
                    gap: 2rem;
                }

                .hero-svg {
                    width: 300px;
                    height: 300px;
                    margin: 0 auto;
                }

                .hero-content h1 {
                    font-size: 3rem;
                }
            }

            @media (max-width: 768px) {
                .nav-content {
                    flex-direction: column;
                    gap: 1rem;
                    align-items: flex-start;
                }

                .nav-links {
                    gap: 0.8rem;
                }

                .hero {
                    padding: 4rem 5% 2rem;
                    margin-top: 8rem;
                }

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

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

                .hero-description {
                    font-size: 1.05rem;
                    padding: 1.5rem;
                }

                .section-title {
                    font-size: 2rem;
                }

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

                .event-card {
                    grid-template-columns: 1fr;
                    gap: 1rem;
                }

                .event-icon {
                    margin: 0 auto;
                }
            }
/* Shared language-version footer */
.language-switcher { margin: 0 auto 1.5rem; }
.language-switcher-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; padding: 0; list-style: none; }
.language-switcher a { display: inline-block; padding: 0.45rem 0.75rem; border: 1px solid currentColor; border-radius: 999px; color: inherit; text-decoration: none; opacity: 0.8; }
.language-switcher a:hover, .language-switcher a:focus-visible, .language-switcher a[aria-current="page"] { opacity: 1; text-decoration: underline; }