.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 43, 72, 0.4);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.header {
    background-color: var(--color-bg-light);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.header--scrolled {
    background-color: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(26, 43, 72, 0.06);
}

.header__inner {
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.header__logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-blue-dark);
    text-decoration: none;
}

.header__nav {
    display: flex;
    align-items: center;
}

.header__nav a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: var(--color-text-main);
    font-weight: 500;
    transition: color 0.3s ease;
}

.header__nav a:hover,
.header__nav a.active {
    color: var(--color-orange-accent);
}

.header__toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 100;
}

.header__toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-blue-dark);
    transition: all 0.3s linear;
}

.mobile-menu-hint.scroll-handwriting {
    display: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.header--scrolled .mobile-menu-hint,
.header__toggle.active + .mobile-menu-hint {
    opacity: 0;
    visibility: hidden;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
}

.hero__title,
.hero__subtitle,
.hero__actions {
    opacity: 0;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    animation: hero-zoom-out 1s var(--easing-standard) 0.2s forwards;
}

.hero__subtitle {
    font-size: 1.125rem;
    max-width: 60ch;
    animation: hero-fade-up 0.8s var(--easing-standard) 0.5s forwards;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: hero-fade-up 0.8s var(--easing-standard) 0.7s forwards;
}

.hero__scroll-indicator {
    display: flex;
    flex-direction: row;
    align-items: center;
    align-self: flex-end;
    gap: 1rem;
    margin-top: 3rem;
    text-decoration: none;
    color: var(--color-text-main);
    opacity: 0;
    animation: hero-fade-up 0.8s var(--easing-standard) 0.9s forwards;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.hero__scroll-indicator:hover {
    transform: translateY(3px);
}
.hero__scroll-indicator.is-hidden {
    opacity: 0 !important;
    pointer-events: none;
}

.scroll-handwriting {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Caveat', cursive;
    font-size: 1.5rem;
    font-weight: 400;
    color: #64748b;
    transform: rotate(-3deg);
    transition: color 0.3s ease;
}

.hand-arrow {
    width: 48px;
    height: 48px;
    color: var(--color-orange-accent);
}

.hero__scroll-indicator:hover .scroll-handwriting {
    color: var(--color-text-main);
}

.mouse-icon {
    width: 24px;
    height: 38px;
    border: 2px solid var(--color-text-main);
    border-radius: 12px;
    position: relative;
    display: flex;
    justify-content: center;
    transition: border-color 0.3s ease;
}

.hero__scroll-indicator:hover .mouse-icon {
    border-color: var(--color-orange-accent);
}

.mouse-wheel {
    width: 4px;
    height: 6px;
    background-color: var(--color-text-main);
    border-radius: 2px;
    margin-top: 6px;
    animation: scroll-wheel-anim 2s infinite;
    transition: background-color 0.3s ease;
}

.hero__scroll-indicator:hover .mouse-wheel {
    background-color: var(--color-orange-accent);
}

:is(.bento-grid, .lab-grid) {
    display: grid;
    gap: 1.5rem;
}
.bento-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.lab-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

:is(.bento-card, .temoignage-card, .lab-card) {
    padding: 2rem;
    border-radius: var(--radius-bento);
    will-change: transform, box-shadow;
}

:is(.bento-card, .lab-card) {
    transition: transform var(--transition-speed) var(--easing-standard), 
                box-shadow var(--transition-speed) var(--easing-standard);
}

:is(.bento-card, .lab-card):hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.lab-card:hover .badge {
    transform: scale(1.05) rotate(2deg);
}

.bento-card {
    background-color: var(--color-white);
    box-shadow: var(--shadow-base);
}
.bento-card__title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}
.bento-icon {
    flex-shrink: 0;
}
.bento-card--accent {
    background-color: var(--color-blue-dark);
    color: var(--color-white);
}
.bento-card--accent .bento-card__title {
    color: var(--color-white);
}

.timeline__container {
    position: relative;
    padding-left: 2rem;
    border-left: 3px solid var(--color-orange-accent);
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 2rem;
}

.timeline__item {
    position: relative;
}

.timeline__dot {
    position: absolute;
    left: -2.6rem;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-bg-light);
    border: 4px solid var(--color-orange-accent);
    transition: transform var(--transition-speed) ease, background-color var(--transition-speed) ease;
}

.timeline__item:hover .timeline__dot {
    transform: scale(1.4);
    background-color: var(--color-orange-accent);
}
.timeline__date {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-orange-accent);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
}
.timeline__role {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-blue-dark);
}

.temoignages-wrapper {
    position: relative;
}
.temoignages-carousel {
    overflow: hidden;
    width: 100%;
    padding-bottom: 2rem;
    margin-bottom: -2rem;
    cursor: grab;
    user-select: none;
}
.temoignages-carousel:active {
    cursor: grabbing;
}
.temoignages-track {
    display: flex;
    gap: 2rem;
    transition: transform 0.6s var(--easing-standard);
}
.temoignage-card {
    background-color: var(--color-white);
    border-left: 4px solid var(--color-orange-accent);
    box-shadow: var(--shadow-base);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 0 0 calc(50% - 1rem);
    min-width: 0;
}
.temoignage-card__text {
    font-style: italic;
    margin-bottom: 1.5rem;
}
.temoignage-card__author strong {
    display: block;
    color: var(--color-blue-dark);
}
.temoignage-card__author span {
    font-size: 0.875rem;
    color: #64748b;
}

.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}
.partner-card {
    background-color: var(--color-white);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-btn);
    box-shadow: var(--shadow-base);
    text-decoration: none;
    color: var(--color-text-main);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.125rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    flex: 1 1 auto;
    max-width: 280px;
    transition: transform 0.3s var(--easing-standard), box-shadow 0.3s var(--easing-standard), color 0.3s ease;
}
.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    color: var(--color-orange-accent);
}
.partner-logo {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.6);
    transition: filter 0.3s var(--easing-standard);
}
.partner-card:hover .partner-logo {
    filter: grayscale(0%) opacity(1);
}

.lab-card {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(26, 43, 72, 0.1);
    display: flex;
    flex-direction: column;
}
.lab-card__text {
    flex-grow: 1;
}
.lab-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.lab-card__title {
    font-size: 1.125rem;
    line-height: 1.3;
    margin: 0;
}

.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid #E2E8F0;
}
.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem 0;
}
.action-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.footer__cv-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.footer__socials {
    display: flex;
    gap: 1.5rem;
}
.footer__social-link {
    color: var(--color-text-main);
    transition: color var(--transition-speed) ease, transform 0.2s ease;
}
.footer__social-link:hover {
    color: var(--color-orange-accent);
    transform: translateY(-3px);
}

@media (min-width: 768px) {
    .bento-card--large {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .header__toggle {
        display: flex;
    }
    
    .mobile-menu-hint.scroll-handwriting {
        display: flex;
        position: absolute;
        right: 3.5rem;
        top: 50%;
        transform: translateY(-50%) rotate(15deg);
        font-size: 1.25rem;
    }

    .header__nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: rgba(248, 250, 252, 0.8);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right 0.3s ease-in-out;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 99;
    }

    .header__nav.active {
        right: 0;
    }
    .header__nav a {
        margin: 0;
        font-size: 1.25rem;
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
    }
    .header__nav.active a {
        opacity: 1;
        transform: translateY(0);
    }
    .header__nav.active a:nth-child(1) {
        transition-delay: 0.1s;
    }
    .header__nav.active a:nth-child(2) {
        transition-delay: 0.2s;
    }
    .header__nav.active a:nth-child(3) {
        transition-delay: 0.3s;
    }
    .header__nav.active a:nth-child(4) {
        transition-delay: 0.4s;
    }

    .temoignage-card {
        flex: 0 0 100%;
    }
    .footer__cv-wrapper .hand-arrow {
        transform: rotate(80deg);
    }
    .header__toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .header__toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .header__toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .hero__title {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.5rem;
    }
}