:root{
    --beige: #FFF3EB;
    --night-blue: #09244C;
    --main-blue: #2177F9;
    --yellow: #FFE681;
    --grey: #8E8E8E;
    --white: #FFFFFF;
    --space: 8px;
}

body{
    font-family: 'Alexandria', sans-serif;
    font-size: 1rem;
    line-height: 1.25;
}

p{margin-bottom:0;}

header{
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px calc(32px - (1.5rem * .5));
    transition: all 0.3s ease;
}

header.position-fixed{
    background-color: var(--night-blue);
}

header .logo{
    height: 67px;
    transition: all 0.3s ease;
}

header .btn-newsletter{
    color: var(--night-blue);
    background-color: var(--yellow);
    border: none;
    border-radius: 10px;
    font-weight: 900;
    text-transform: uppercase;
    display: block;
    line-height: 1.14;
    padding: 12px;
    font-size: 0.875rem;
    text-decoration: none;
}

header .btn-newsletter:hover{
    background-color: var(--main-blue);
}

.intro-section{
    position: relative;
    color: var(--beige);
    height: 582px;
    padding: 32px 24px;
    overflow: hidden;
}

.intro-section .video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.intro-section .video-background iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 56.25vw; /* 16:9 aspect ratio */
    min-height: 100vh;
    min-width: 177.78vh; /* 16:9 aspect ratio */
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.intro-section .video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.5) 100%);
    z-index: -1;
}

.intro-section .btn-video{
    color: var(--beige);
    background-color: var(--main-blue);
    border: none;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
}

.intro-section .btn-video:hover{
    color: var(--night-blue);
    background-color: var(--yellow);
}

.intro-section .col-intro{
    color: var(--beige);
    position: relative;
    z-index: 1;
}

.intro-section .col-intro h1{
    font-size: 1.875rem;
    font-weight: 900;
    margin-bottom: 4px;
}

.intro-section .col-intro p.subtitle{
    font-weight: 800;
}

.about-section,
.form-section,
.prefooter-section{
    background-color: var(--beige);
}

.about-section{
    padding: 32px 24px;
    color: var(--night-blue);
}

.missions-section{
    background-color: var(--main-blue);
    color: var(--white);
    padding: 40px 0 48px;
    overflow: hidden;
}

.missions-section .missions-intro{
    margin-bottom: 32px;
    padding: 0 8px;
}

.missions-section .missions-intro h2{
    font-size: 1.75rem;
    font-weight: 800;
    font-family: 'Alexandria', sans-serif;
    line-height: 1.15;
    margin-bottom: 16px;
}

.missions-section .missions-intro p{
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.35;
    max-width: 920px;
    margin: 0 auto;
}

.missions-section .swiper-missions{
    padding: 0 16px;
    overflow: visible;
}

.missions-section .swiper-missions .swiper-slide{
    height: auto;
}

.missions-nav{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 28px;
    padding: 0 16px;
    position: relative;
    z-index: 2;
}

.missions-nav-btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 2px solid var(--white);
    border-radius: 50%;
    background-color: transparent;
    color: var(--white);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
    flex-shrink: 0;
}

.missions-nav-btn svg{
    width: 20px;
    height: 20px;
}

.missions-nav-btn:hover:not(:disabled){
    background-color: var(--white);
    color: var(--main-blue);
}

.missions-nav-btn:disabled{
    opacity: 0.35;
    cursor: default;
}

.missions-section .swiper-pagination{
    position: static;
    width: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.missions-section .swiper-pagination .swiper-pagination-bullet{
    height: 12px;
    width: 12px;
    margin: 0 !important;
    border-radius: 50%;
    background-color: transparent;
    border: 2px solid var(--white);
    opacity: 1;
}

.missions-section .swiper-pagination .swiper-pagination-bullet-active{
    background-color: var(--white);
}

.flip-card{
    display: block;
    width: 100%;
    height: 100%;
    min-height: 280px;
    aspect-ratio: 1 / 1;
    padding: 0;
    border: none;
    background: transparent;
    perspective: 1200px;
    cursor: pointer;
    font: inherit;
    color: inherit;
    text-align: left;
    -webkit-tap-highlight-color: transparent;
}

.flip-card-inner{
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
}

.flip-card.is-flipped .flip-card-inner{
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back{
    position: absolute;
    inset: 0;
    display: flex;
    border-radius: 24px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    overflow: hidden;
}

.flip-card-front{
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    padding: 20px;
    background-color: var(--night-blue);
    background-size: 112% 112%;
    background-position: center;
    background-repeat: no-repeat;
}

.flip-card-front::after{
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(9, 36, 76, 0) 45%, rgba(9, 36, 76, 0.55) 100%);
    pointer-events: none;
}

.flip-card-back{
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 20px;
    padding: 28px 24px 64px;
    background-color: var(--white);
    color: var(--main-blue);
    transform: rotateY(180deg);
}

.flip-card-title{
    position: relative;
    z-index: 1;
    flex: 1;
    text-align: left;
    color: var(--white);
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.2;
}

.flip-card-text{
    display: block;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 800;
    line-height: 1.25;
}

.flip-card-btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    max-width: calc(100% - 48px);
    padding: 10px 16px;
    border-radius: 10px;
    background-color: var(--main-blue);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.flip-card-btn-icon{
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.flip-card-btn:hover{
    background-color: var(--yellow);
    color: var(--night-blue);
}

.flip-card-icon{
    position: absolute;
    z-index: 1;
    right: 16px;
    bottom: 16px;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.form-section{
    padding: 24px calc(24px - (1.5rem * .5)) 32px;
    color: var(--night-blue);
}

.form-section h2{
    font-size: 1.75rem;
    font-weight: 900;
    font-family: 'Roboto', sans-serif;
    line-height: 1.1;
    margin-bottom: 16px;
}

.form-section .col-form{
    margin-top: 32px;
}

.form-section .col-form form{
    background-color: var(--night-blue);
    padding: 24px;
    border-radius: 16px;
    color: var(--white);
    margin: 0 16px;
}

.form-section .col-form form p{
    font-family: 'Roboto', sans-serif;
    font-weight: 900;
    margin-bottom: 24px;
}

.form-section .col-form form label{
    margin-bottom: 8px;
}

.form-section .col-form form input{
    height: 45px;
    background-color: var(--beige);
    border: none;
    border-radius: 5px;
    padding: 14px 11px 16px;
    margin-bottom: 24px;
}

.form-section .col-form form input::placeholder{
    font-size: 0.75rem;
    color: var(--grey);
}

.form-section .col-form form button[type="submit"]{
    color: var(--night-blue);
    background-color: var(--yellow);
    border: none;
    border-radius: 10px;
    margin: calc(32px - 24px) auto 0;
    font-weight: 900;
    text-transform: uppercase;
    height: 45px;
    display: block;
}

.form-section .col-form form button[type="submit"]:hover{
    background-color: var(--main-blue);
}

.polaroids-section{
    background-color: var(--main-blue);
    color: var(--beige);
    padding: 24px calc(32px - (1.5rem * .5)) 32px;
}

.polaroids-section h2{
    font-size: 1.875rem;
    font-weight: 900;
    font-family: 'Roboto', sans-serif;
    margin-bottom: 16px;
}

.polaroids-section p.subtitle{
    margin-bottom: 24px;
}

.polaroids-section .polaroids-container{
    display: none;
}

.polaroids-section .swiper-container .swiper-slide .polaroid{
    display: block;
    margin: 0 auto 8px;
    height: 370px;
}

.polaroids-section .swiper-container{
    position: relative;
    width: 100%;
    overflow: hidden;
    margin-bottom: 40px;
}

.polaroids-section .swiper-container .swiper-slide .bulle{
    color: var(--night-blue);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: center;
    width: fit-content;
    height: 100px;
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 4px;
    margin: 0 auto;
    padding: 0 8px 24px;
}

.polaroids-section .swiper-container .swiper-slide .bulle.bulle-1{
    background-image: url(../img/bulle-3.png);
}

.polaroids-section .swiper-container .swiper-slide .bulle.bulle-4{
    background-image: url(../img/bulle-1-mobile.png);
}

.polaroids-section .swiper-container .swiper-slide .bulle .bulle-quote{
    font-size: 3.75rem;
    line-height: 0.001;
}

.polaroids-section .swiper-container .swiper-slide .bulle .bulle-emoji{
    max-height: 18px;
}

.polaroids-section p.text-socials{
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.polaroids-section .socials-holder{
    gap: 35px;
}

.polaroids-section .social-icon{
    max-height: 40px;
}


.prefooter-section{
    padding: 32px calc(32px - (1.5rem * .5));
    color: var(--night-blue);
}

.prefooter-section h2{
    font-size: 2rem;
    font-weight: 800;
}


footer{
    background-color: var(--night-blue);
    color: var(--beige);
    padding: 32px calc(44px - (1.5rem * .5));
    line-height: 1.5;
}

footer .col-auto{
    flex: 1 1 0;
}

footer .col-auto:not(:last-child){
    margin-bottom: 32px;
}

footer .logo-footer{
    height: 73px;
}

footer .col-social{
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 24px;
}

footer .social-icon{
    max-height: 34px;
}

footer a{
    color: var(--beige);
}

footer a:hover{
    color: var(--yellow);
}

@media screen and (min-width: 768px){

    body{
        font-size: 1.125rem;
    }

    .intro-section{
        height: 482px;
    }

    .intro-section .col-intro h1,
    .missions-section .missions-intro h2,
    .form-section h2,
    .polaroids-section h2,
    .prefooter-section h2{
        font-size: 2.75rem;
    }

    .missions-section .missions-intro p{
        font-size: 1.125rem;
    }

    .flip-card{
        min-height: 320px;
    }

    .flip-card-title{
        font-size: 1.125rem;
    }

    .flip-card-text{
        font-size: 1.25rem;
    }
}

@media screen and (min-width: 992px){

    body{
        font-size: 1.125rem;
    }

    header .btn-newsletter{
        font-size: 1rem;
    }

    .intro-section{
        height: 60vh;
    }

    .intro-section .col-intro{
       padding-top: 80px;
    }

    .intro-section .col-intro h1,
    .missions-section .missions-intro h2,
    .form-section h2,
    .polaroids-section h2,
    .prefooter-section h2{
        line-height: 1.1;
    }

    .missions-section{
        padding: 56px 0 64px;
    }

    .missions-section .missions-intro{
        margin-bottom: 40px;
    }

    .missions-section .swiper-missions{
        padding: 0;
        overflow: hidden;
    }

    .missions-section .swiper-missions .swiper-wrapper{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        transform: none !important;
        width: 100% !important;
    }

    .missions-section .swiper-missions .swiper-slide{
        width: auto !important;
        margin: 0 !important;
    }

    .missions-nav{
        display: none;
    }

    .flip-card{
        min-height: 0;
        aspect-ratio: 1 / 1;
    }

    .flip-card-front,
    .flip-card-back{
        border-radius: 28px;
    }

    .flip-card-front{
        padding: 24px;
    }

    .flip-card-back{
        gap: 24px;
        padding: 32px 28px 72px;
    }

    .flip-card-title{
        font-size: 1.25rem;
        max-width: 80%;
    }

    .flip-card-text{
        font-size: 1.375rem;
    }

    .flip-card-btn{
        font-size: 1rem;
        padding: 12px 20px;
    }

    .flip-card-btn-icon{
        width: 20px;
        height: 20px;
    }

    .flip-card-icon{
        width: 42px;
        height: 42px;
        right: 20px;
        bottom: 20px;
    }

    .polaroids-section .swiper-polaroids{
        display: none;
    }

    .polaroids-section .polaroids-container{
        display: block;
        margin: 40px auto;
    }

    .polaroids-section .polaroids-container .row{
        row-gap: 24px;
    }

    .polaroids-section .polaroids-container .bulle{
        color: var(--night-blue);
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
        width: fit-content;
        height: 100px;
        display: flex;
        align-items: end;
        justify-content: center;
        gap: 4px;
        margin: 0 auto;
        padding: 0 8px 24px;
    }

    .polaroids-section .polaroids-container .bulle .bulle-text{
        font-size: 0.875rem;
        line-height: 1.1;
    }

    .polaroids-section .polaroids-container .bulle .bulle-quote{
        font-size: 3.75rem;
        line-height: 0.001;
    }
    
    .polaroids-section .polaroids-container .bulle .bulle-emoji{
        max-height: 18px;
    }

    .polaroids-section .polaroids-container .bulle.bulle-1{
        background-image: url(../img/bulle-1-desktop.png);
        align-items: center;
    }

    .polaroids-section .polaroids-container .bulle.bulle-2{
        background-image: url(../img/bulle-2-desktop.png);
        align-items: center;
    }

    .polaroids-section .polaroids-container .bulle.bulle-3{
        background-image: url(../img/bulle-3.png);
    }

    .polaroids-section .polaroids-container .bulle.bulle-4{
        background-image: url(../img/bulle-4.png);
        padding-bottom: 12px;
    }

    .polaroids-section .polaroids-container .bulle.bulle-4 .bulle-quote{
        line-height: 0.6;
    }

    .polaroids-section .polaroids-container .bulle.bulle-5{
        background-image: url(../img/bulle-5.png);
    }

    footer{
        font-size: 1rem;
    }
    footer .w-100{
        margin-bottom: 24px;
    }
    footer .col-auto:not(:last-child){
        margin-bottom: 0;
    }
}

@media screen and (min-width: 1200px){
    header .logo {
        height: 98px;
    }
    header.position-fixed .logo{
        height: 52px;
    }
    header .btn-newsletter{
        font-size: 1.125rem;
        padding: 16px;
    }
    .intro-section{
        height: 70vh;
    }
    .intro-section .col-intro{
        padding-top: 60px;
    }
    .intro-section .col-intro h1{
        font-size: 3.75rem;
    }
    .about-section{
        padding: 40px 0;
    }
    .missions-section{
        padding: 64px 0 72px;
    }
    .missions-section .missions-intro h2,
    .form-section h2,
    .polaroids-section h2,
    .prefooter-section h2{
        font-size: 3.25rem;
        line-height: 1;
    }
    .missions-section .missions-intro{
        margin-bottom: 48px;
    }
    .missions-section .missions-intro h2{
        font-weight: 800;
        font-family: 'Alexandria', sans-serif;
        margin-bottom: 24px;
        max-width: 1100px;
        margin-left: auto;
        margin-right: auto;
    }
    .missions-section .missions-intro p{
        font-size: 1.25rem;
        max-width: 980px;
    }
    .missions-section .swiper-missions .swiper-wrapper{
        gap: 28px;
    }
    .flip-card-title{
        font-size: 1.375rem;
    }
    .flip-card-text{
        font-size: 1.5rem;
    }
    .flip-card-icon{
        width: 48px;
        height: 48px;
    }

    .form-section{
        padding: 40px 0;
    }

    .form-section .col-text {
        padding: 0 calc(120px - (1.5rem * .5)) 0 0;
    }
    
    .form-section .col-form {
        margin-top: 0;
    }

    .form-section .col-form form p {
        font-family: 'Alexandria', sans-serif;
        font-weight: 900;
        text-transform: uppercase;
        margin-bottom: 48px;
    }

    .form-section .col-form form input {
        height: 65px;   
    }

    .polaroids-section{
        padding: 40px 0;
    }

    .prefooter-section{
        padding: 40px 0;
    }

    .prefooter-section h2{
        margin-bottom: 16px;
    }

    footer{
        font-size: 0.875rem;
    }

    footer .col-auto{
        flex: 0 0 auto;
    }

    footer .col-auto:not(:last-child){
        margin-bottom: 0;
    }

    footer .col-social{
        gap: 16px;
    }
    footer .social-icon {
        max-height: 20px;
    }

    @media screen and (min-width: 1600px){
        body,
        header .btn-newsletter{
            font-size: 1.438rem;
        }
        .container{
            max-width: calc(1920px - (135px * 2));
        }
        header .container{
            max-width: calc(1920px - (60px * 2));
        }
        header .logo{
            height: 128px;
        }
        header.position-fixed .logo{
            height: 81px;
        }
        header .btn-newsletter{
            height: 81px;
            padding: 16px 24px;
        }
        .intro-section .col-intro{
            padding-top: 50px;
        }
        .intro-section .col-intro h1{
            font-size: 5.25rem;
        }
        .about-section,
        .missions-section{
            padding: 64px 0;
        }
        .missions-section .missions-intro h2,
        .form-section h2,
        .polaroids-section h2,
        .prefooter-section h2{
            font-size: 4.75rem;
            font-weight: 800;
            font-family: 'Alexandria', sans-serif;
        }
        .missions-section .missions-intro{
            margin-bottom: 56px;
        }
        .missions-section .missions-intro h2{
            margin-bottom: 28px;
            max-width: 1400px;
        }
        .missions-section .missions-intro p{
            font-size: 1.438rem;
            max-width: 1100px;
        }
        .missions-section .swiper-missions .swiper-wrapper{
            gap: 32px;
        }
        .flip-card{
            aspect-ratio: 1 / 1;
        }
        .flip-card-front,
        .flip-card-back{
            border-radius: 32px;
        }
        .flip-card-title{
            font-size: 1.75rem;
        }
        .flip-card-text{
            font-size: 1.75rem;
        }
        .flip-card-btn{
            font-size: 1.125rem;
            padding: 14px 24px;
        }
        .flip-card-icon{
            width: 50px;
            height: 50px;
            right: 24px;
            bottom: 24px;
        }

        .form-section{
            padding: 80px 0;
        }

        .form-section h2{
            margin-bottom: 32px;
        }

        .form-section .col-form form {
            padding: 64px 
        }
        .form-section .col-form form label {
            font-size: 1.563rem;
            font-weight: 900;
            margin-bottom: 12px;
        }
        .form-section .col-form form input {
            height: 112px;
            font-size: 1.563rem;
            padding: 24px;
            margin-bottom: 24px;
            border-radius: 10px;
        }

        .form-section .col-form form input::placeholder {
            font-size: 1.563rem;
        }
        
        .form-section .col-form form button[type="submit"] {
            font-size: 1.438rem;
            margin: 50px auto 0;
            height: 81px;
            padding: 0 40px;
        }

        .polaroids-section{
            padding: 64px 0;
        }

        .polaroids-section .container {
            max-width: calc(1920px - (72px * 2));
        }

        .polaroids-section p.subtitle{
            margin-bottom: 72px;
        }
        .polaroids-section .polaroids-container {
            margin: 72px auto;
        }

        .polaroids-section .polaroids-container .bulle .bulle-text {
            font-size: 1.438rem;        
        }
        .polaroids-section .polaroids-container .bulle {            
            height: 150px;
            padding: 0 24px 32px
        }
        .polaroids-section .polaroids-container .bulle .bulle-quote {
            font-size: 5rem;
        }
        .polaroids-section .polaroids-container .bulle.bulle-4 {
            padding-bottom: 24px;
        }
        .polaroids-section .polaroids-container .bulle .bulle-emoji {
            max-height: 24px;
        }

        .polaroids-section p.text-socials {
            margin-bottom: 40px;
        }

        .polaroids-section .socials-holder {
            gap: 64px;
        }

        .polaroids-section .social-icon{
            max-height: 74px;
        }

        .prefooter-section{
            padding: 64px 0 80px;
        }
        
        footer{
            font-size: 1rem;
        }

        footer .social-icon {
            max-height: 24px;
        }
    }
}