:root {
    /* Couleurs */
    --navy-900: #0b2545;
    --navy-800: #14335c;
    --navy-700: #1c4173;
    --gold-600: #a8792f;
    --gold-500: #c39a4d;
    --bg: #f6f7fa;
    --surface: #ffffff;
    --ink: #1c2230;
    --slate: #5b6478;
    --line: #e2e5ec;
    --cream: #ece7dc;

    /* Typo */
    --font-display: 'Fraunces', serif;
    --font-body: 'Inter', sans-serif;

    /* Ombres / rayons */
    --shadow-sm: 0 1px 2px rgba(11, 37, 69, .06), 0 1px 1px rgba(11, 37, 69, .04);
    --shadow-md: 0 8px 24px rgba(11, 37, 69, .10);
    --radius-sm: 6px;
    --radius-md: 12px;
}

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

body {
    background-color: var(--bg);
    font-family: var(--font-body);
    font-size: 1.15rem;
    color: var(--ink);
}

a {
    color: inherit;
}

/*     HEADER   */

#main-header {
    color: #dbe2ee;
    background-color: var(--navy-900);
    position: sticky;
    top: 0;
    z-index: 20;
    box-shadow: var(--shadow-sm);
}

#main-header #navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1140px;
    padding: 0 3rem;
    margin: 0 auto;
    position: relative;
    color: #dbe2ee;
}

#navbar #logo {
    display: flex;
    align-items: center;
    gap: .55rem;
    font-size: 1.55rem;
    font-weight: 600;
    letter-spacing: -.01em;
    margin: .6rem 0;
    text-decoration: none;
    color: #fff;
}

#navbar #logo .logo-mark {
    display: inline-flex;
    width: 1.9rem;
    height: 1.9rem;
    flex-shrink: 0;
}

#navbar #logo .logo-mark svg {
    width: 100%;
    height: 100%;
}

#nav-menu-btn {
    display: none;
}

#nav-menu-btn #nav-btn-check {
    display: none;
}

#nav-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.1rem;
    align-items: center;
    height: 3rem;
}

#nav-menu li a {
    display: inline-block;
    text-decoration: none;
    color: inherit;
    font-size: .98rem;
    font-weight: 500;
    letter-spacing: .01em;
    border-bottom: 2px solid transparent;
    padding-bottom: .2rem;
    transition: color .2s ease, border-color .2s ease;
}

#nav-menu li a:hover, #nav-menu li a:focus-visible, #nav-menu li a.active {
    color: var(--gold-500);
    border-bottom-color: var(--gold-500);
    outline: none;
}

#nav-menu li a.cta-link {
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 999px;
    padding: .4rem 1rem;
}

#nav-menu li a.cta-link:hover, #nav-menu li a.cta-link:focus-visible {
    border-color: var(--gold-500);
}

/*  END HEADER    */

/*  Universal Style     */
h1, h2, h3, #logo {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -.01em;
    color: var(--navy-900);
}

#main-home .container h1, #main-contact h1, #main-about .container h1 {
    font-size: 2.4em;
    line-height: 1.15;
}

#main-home h2, #main-contact h2, #main-about h2 {
    font-size: 1.6em;
}

#main-home h3, #main-contact h3, #main-about h3 {
    font-size: 1.2em;
}

p {
    line-height: 1.65;
    color: var(--ink);
}

.eyebrow {
    display: inline-block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--gold-600);
    margin-bottom: .6rem;
}

.content-section, .container {
    max-width: 1140px;
    padding: 2rem 3rem;
    margin: 0 auto;
}

.container {
    padding-block: 0;
}
/*  end Universal style   */

/*    MAIN   */

main {
    padding: 0 0 60px;
}

/* --- Accueil : hero --- */
#main-home .hero {
    background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
    color: #eef1f7;
    position: relative;
    overflow: hidden;
}

#main-home .hero .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
    position: relative;
    z-index: 2;
}

#main-home .hero h1 {
    color: #fff;
    max-width: 640px;
}

#main-home .hero p {
    max-width: 560px;
    color: #c7d0e2;
    margin-top: 1.1rem;
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: .95rem;
    padding: .8rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--gold-500);
    color: var(--navy-900);
}

.btn-primary:hover {
    background-color: var(--gold-600);
}

.btn-ghost {
    color: #fff;
    border-color: rgba(255, 255, 255, .35);
}

.btn-ghost:hover {
    border-color: #fff;
}

.btn:focus-visible {
    outline: 2px solid var(--gold-500);
    outline-offset: 2px;
}

.hero-pattern {
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    width: 46%;
    opacity: .5;
    z-index: 1;
    pointer-events: none;
}

@media (max-width: 900px) {
    .hero-pattern {
        width: 70%;
        opacity: .3;
    }
}

/* --- Accueil : services --- */
.section-services {
    background-color: var(--bg);
}

.section-services .content-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.section-services .section-head {
    max-width: 640px;
    margin-bottom: 2.5rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 1.8rem 1.6rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .2s ease, transform .2s ease;
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-card .icon {
    width: 2.6rem;
    height: 2.6rem;
    color: var(--gold-600);
    margin-bottom: 1rem;
    display: inline-block;
}

.service-card .icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    margin-bottom: .5rem;
    font-size: 1.15rem;
}

.service-card p {
    font-size: .96rem;
    color: var(--slate);
}

/* --- Accueil : chiffres clés --- */
.section-stats {
    background: linear-gradient(120deg, var(--navy-900), var(--navy-700));
    color: #fff;
}

.section-stats .content-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    padding-top: 3rem;
    padding-bottom: 3rem;
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.4rem;
    color: var(--gold-500);
    display: block;
}

.stat-label {
    font-size: .92rem;
    color: #c7d0e2;
    margin-top: .3rem;
}

/*   A Propos   */
#main-about .container {
    text-align: left;
    padding-top: 3.5rem;
    padding-bottom: 1rem;
}

#main-about .container p {
    max-width: 680px;
    color: var(--slate);
    margin-top: .7rem;
}

#main-about .section {
    line-height: 1.65;
}

#main-about .intro .content-section {
    max-width: 760px;
}

.special-paragraph {
    text-indent: 2rem;
}

.special-paragraph:first-letter {
    font-family: var(--font-display);
    font-weight: 600;
    font-style: normal;
    font-size: 2.2rem;
    color: var(--navy-900);
}

#main-about .section + .section {
    margin-top: .5rem;
}

.section.members {
    color: #eef1f7;
    background-color: var(--navy-900);
}

.section.members .content-section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
}

.section.members h2 {
    color: #fff;
}

.section.members > .content-section > p {
    color: #c7d0e2;
    max-width: 560px;
}

.section.members .member-list {
    max-width: 100%;
    margin: 2.2rem auto 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.member-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .9rem;
    min-width: 220px;
    width: 25%;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, .14);
    background-color: rgba(255, 255, 255, .04);
    padding: 2.2rem 1.5rem;
    transition: transform .3s ease, background-color .3s ease;
    text-align: center;
}

.member-item:hover {
    transform: translateY(-4px);
    background-color: rgba(255, 255, 255, .07);
}

.member-item .picture {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background-color: var(--gold-500);
    color: var(--navy-900);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
}

.member-item .member-name {
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    color: #fff;
}

.member-item .member-role {
    font-size: .88rem;
    text-align: center;
    color: var(--gold-500);
    margin-top: .1rem;
}
/*   End A Propos   */

/*      CONTACT     */
#main-contact {
    min-height: 100vh;
}

#main-contact .container {
    padding-top: 3.5rem;
    padding-bottom: .5rem;
}

#main-contact .container p {
    color: var(--slate);
    max-width: 560px;
    margin-top: .6rem;
}

#main-contact .content-section {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding-top: 2.5rem;
}

.section .form-container {
    flex: 1;
    color: #eef1f7;
    background-color: var(--navy-900);
    border-radius: var(--radius-md);
    padding: 2.5rem 2.2rem;
    min-width: 300px;
    box-shadow: var(--shadow-md);
}

.form-container h2 {
    color: #fff;
}

.form-container #form {
    margin-top: 1.2rem;
}

.section .infos-container {
    flex: 1;
    padding: 2.5rem 2.2rem;
    min-width: 300px;
}

.infos-container .infos-list {
    margin-top: 1.3rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    row-gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: .9rem;
    align-items: flex-start;
}

.info-item .icon {
    width: 1.4rem;
    height: 1.4rem;
    color: var(--gold-600);
    flex-shrink: 0;
    margin-top: .2rem;
}

.info-item .icon svg {
    width: 100%;
    height: 100%;
}

.info-item h3 {
    font-size: 1rem;
    color: var(--navy-900);
}

.info-item p {
    color: var(--slate);
    font-size: .96rem;
}

.infos-list a {
    text-decoration: none;
    color: inherit;
}

.infos-list a:hover {
    text-decoration: underline;
    text-decoration-color: var(--gold-600);
}

#main-contact #form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

#form .group-form {
    display: flex;
    flex-direction: column;
    row-gap: .35rem;
}

.group-form .field-name {
    font-size: .92rem;
    font-weight: 600;
    color: #c7d0e2;
}

.group-form .field, .group-form .msg-field {
    font-family: var(--font-body);
    font-size: 1rem;
    padding: .6rem .7rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, .2);
    background-color: rgba(255, 255, 255, .06);
    color: #fff;
    transition: border-color .2s ease, background-color .2s ease;
}

.group-form .field::placeholder, .group-form .msg-field::placeholder {
    color: #93a0b9;
}

.group-form .field:focus-visible, .group-form .msg-field:focus-visible {
    outline: none;
    border-color: var(--gold-500);
    background-color: rgba(255, 255, 255, .1);
}

.group-form select.field option {
    background-color: var(--navy-800);
    color: #fff;
}

.group-form .msg-field {
    resize: vertical;
    min-height: 6rem;
    line-height: 1.4;
}

#form #btn {
    font-family: var(--font-body);
    font-size: .96rem;
    font-weight: 600;
    padding: .75rem 1.4rem;
    margin-top: .6rem;
    border: none;
    border-radius: var(--radius-sm);
    background-color: var(--gold-500);
    color: var(--navy-900);
    cursor: pointer;
    transition: background-color .2s ease;
    align-self: flex-start;
}

#form #btn:hover {
    background-color: var(--gold-600);
}

#form #btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}
/*      End CONTACT     */
/*  END MAIN */

/*  FOOTER */

footer {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #081a33;
    color: #93a0b9;
    padding: 1.4rem 1.5rem;
    margin: 0 auto;
    font-size: .85em;
}

/*  END FOOTER*/

/* Mise en forme pour les versions mobiles */
@media (max-width: 600px) {
    body {
        font-size: 1rem;
    }

    #navbar #logo {
        font-size: 1.2rem;
    }

    #main-header #navbar {
        padding: 0 1.5rem;
    }

    /* Menu Hamburger   */
    #nav-menu-btn {
        display: block;
        cursor: pointer;
    }

    #nav-menu-btn .nav-menu-icon {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 26px;
        height: 17px;
        cursor: pointer;
    }

    .nav-menu-icon span {
        display: block;
        height: 3px;
        border-radius: 3px;
        background-color: #dbe2ee;
        transition: all .3s ease;
    }

    #nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        position: absolute;
        top: 100%;
        right: 0;
        max-width: 0;
        height: auto;
        overflow: hidden;
        background-color: var(--navy-900);
        transition: all .5s ease;
    }

    #nav-menu li a {
        padding: .6rem 2rem;
        width: 100%;
        white-space: nowrap;
    }

    #nav-menu li a.cta-link {
        border-radius: 0;
        border: none;
        border-top: 1px solid rgba(255, 255, 255, .12);
    }

    #nav-menu li a:hover, #nav-menu li a:focus-visible, #nav-menu li a.active {
        color: var(--navy-900);
        background-color: var(--gold-500);
        border-bottom-color: transparent;
    }

    #nav-btn-check:checked ~ .nav-menu-icon span:first-child {
        transform: translateY(7px) rotate(45deg);
    }

    #nav-btn-check:checked ~ .nav-menu-icon span:nth-child(2) {
        opacity: 0;
    }

    #nav-btn-check:checked ~ .nav-menu-icon span:last-child {
        transform: translateY(-7px) rotate(-45deg);
    }

    #navbar:has(#nav-btn-check:checked) #nav-menu {
        max-width: 220px;
    }
    /* end Menu Hamburger*/

    /*  Universal Styles for Mobile   */
    #main-home .container h1, #main-contact h1, #main-about .container h1 {
        font-size: 1.7em;
        margin-bottom: .5rem;
    }

    #main-home h2, #main-contact h2, #main-about h2 {
        font-size: 1.35em;
        margin-bottom: .2rem;
    }

    #main-home h3, #main-contact h3, #main-about h3 {
        font-size: 1.1em;
        margin-bottom: 0;
    }

    .content-section, .container {
        padding: 0 1.5rem;
    }
    /*  end Universal style for Mobile  */

    /*     Home Page    */
    #main-home .hero .container {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .section-services .content-section,
    .section-stats .content-section {
        padding-top: 2.5rem;
        padding-bottom: 2.5rem;
    }

    /*   A Propos   */
    #main-about .content-section {
        padding: 1.5rem 1.5rem 2rem;
        line-height: 1.5;
    }

    .section.members .content-section {
        padding: 2.5rem 1.5rem;
    }

    .member-item {
        row-gap: 1rem;
        min-width: 200px;
        padding: 1.6rem 1rem;
    }

    .member-item .picture {
        width: 72px;
        height: 72px;
        font-size: 1.2rem;
    }

    .member-item .member-name {
        font-size: 1rem;
    }

    .member-item .member-role {
        font-size: .8rem;
    }

    /*      Contact Page     */
    #main-contact .container h1 {
        margin-bottom: 1rem;
    }

    #main-contact .form-container {
        gap: 1rem;
        border-radius: 8px;
        padding: 1.6rem 1.5rem;
    }

    #form #btn {
        width: 100%;
        align-self: stretch;
        text-align: center;
    }

    #main-contact .infos-list {
        row-gap: 1.1rem;
    }
    /*   footer for Mobile   */
    footer {
        font-size: .8em;
    }
    /*   end footer for Mobile*/
}