/* =========================================================
   INSTITUT MUSICAL CONGOLAIS — CERTIFICATION IMC
   STYLE FIDÈLE À L'IDENTITÉ VISUELLE IMC
========================================================= */


/* =========================================================
   1. RESET
========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;

    font-family: Arial, Helvetica, sans-serif;

    background: #ffffff;

    color: #111111;

    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
}


/* =========================================================
   2. EN-TÊTE
========================================================= */

.site-header {
    width: 100%;

    background: #ffffff;

    position: relative;

    z-index: 1000;

    border-bottom: 1px solid #eeeeee;
}

.header-inner {
    width: min(1100px, 90%);

    min-height: 105px;

    margin: 0 auto;

    display: flex;

    align-items: center;

    justify-content: space-between;
}


/* LOGO */

.site-header .logo {
    display: block;
}

.site-header .logo img {
    width: 160px;

    max-width: 45vw;

    height: auto;

    display: block;
}


/* =========================================================
   3. BOUTON MENU
========================================================= */

.site-header .menu-btn {
    border: none;

    background: #55BFEF;

    color: #ffffff;

    padding: 12px 24px;

    border-radius: 6px;

    font-size: 14px;

    font-weight: 800;

    cursor: pointer;

    transition: 0.25s ease;
}

.site-header .menu-btn:hover {
    background: #3CAEDC;

    transform: translateY(-1px);
}

.site-header .menu-btn:active {
    transform: translateY(0);
}


/* =========================================================
   4. MENU PRINCIPAL
========================================================= */

.main-menu {
    display: none;

    width: min(320px, 90%);

    margin: 15px auto 0;

    background: #ffffff;

    border: 1px solid #eeeeee;

    border-radius: 8px;

    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);

    padding: 8px 0;

    overflow: hidden;
}

.main-menu.active {
    display: block;
}


/* LIENS */

.main-menu .menu-link {
    display: block;

    width: 100%;

    padding: 14px 20px;

    color: #111111;

    background: #ffffff;

    font-size: 15px;

    font-weight: 600;

    transition: 0.2s ease;
}

.main-menu .menu-link:hover {
    background: #F3FAFD;

    color: #55BFEF;
}


/* BOUTONS DÉROULANTS */

.main-menu .menu-dropdown-button {
    width: 100%;

    display: flex;

    align-items: center;

    justify-content: space-between;

    padding: 14px 20px;

    border: none;

    background: #ffffff;

    color: #111111;

    font-size: 15px;

    font-weight: 600;

    text-align: left;

    cursor: pointer;

    transition: 0.2s ease;
}

.main-menu .menu-dropdown-button:hover {
    background: #F3FAFD;

    color: #55BFEF;
}


/* FLÈCHE */

.arrow {
    font-size: 18px;

    line-height: 1;

    transition: transform 0.25s ease;
}

.arrow.open {
    transform: rotate(180deg);
}


/* SOUS-MENUS */

.submenu {
    display: none;

    background: #F7FBFD;

    border-top: 1px solid #eeeeee;

    border-bottom: 1px solid #eeeeee;
}

.submenu.active {
    display: block;
}

.submenu a {
    display: block;

    padding: 12px 20px 12px 35px;

    color: #444444;

    font-size: 14px;

    font-weight: 500;

    transition: 0.2s ease;
}

.submenu a:hover {
    background: #EAF8FE;

    color: #55BFEF;
}


/* =========================================================
   5. HERO CERTIFICATION
========================================================= */

.hero-small {
    width: 100%;

    padding: 75px 7% 70px;

    background: #ffffff;

    text-align: center;

    position: relative;

    overflow: hidden;
}

.hero-small::before {
    content: "🏆";

    position: absolute;

    top: 35px;

    right: 8%;

    font-size: 65px;

    opacity: 0.10;
}

.hero-small::after {
    content: "🎵";

    position: absolute;

    bottom: 15px;

    left: 8%;

    font-size: 48px;

    opacity: 0.08;
}

.hero-small-content {
    max-width: 760px;

    margin: 0 auto;

    position: relative;

    z-index: 2;
}

.hero-small h1 {
    margin-bottom: 20px;

    color: #111111;

    font-size: clamp(36px, 7vw, 60px);

    line-height: 1.1;

    font-weight: 800;
}

.hero-small h1::before {
    content: "🏅 ";

    color: #F9B233;

    font-size: 0.55em;

    vertical-align: middle;
}

.hero-small p {
    max-width: 700px;

    margin: 0 auto;

    color: #444444;

    font-size: 18px;

    line-height: 1.7;
}


/* =========================================================
   6. CONTENEUR
========================================================= */

.content-container {
    width: min(1100px, 90%);

    margin: 0 auto;
}


/* =========================================================
   7. TITRES DE SECTIONS
========================================================= */

.certification-intro h2,
.certification-levels h2,
.thresholds-section h2,
.methodology-section h2,
.platforms-section h2,
.proofs-section h2,
.fees-section h2,
.request-section h2,
.export-section h2 {
    margin-bottom: 15px;

    color: #111111;

    font-size: clamp(26px, 4vw, 38px);

    line-height: 1.2;

    font-weight: 800;
}

.certification-intro h2::after,
.certification-levels h2::after,
.thresholds-section h2::after,
.methodology-section h2::after,
.platforms-section h2::after,
.proofs-section h2::after,
.fees-section h2::after,
.export-section h2::after {
    content: "";

    display: block;

    width: 48px;

    height: 4px;

    margin-top: 10px;

    background: #55BFEF;

    border-radius: 5px;
}

.section-intro {
    max-width: 720px;

    margin-bottom: 35px;

    color: #555555;

    font-size: 16px;

    line-height: 1.7;
}


/* =========================================================
   8. INTRODUCTION
========================================================= */

.certification-intro {
    padding: 75px 0;

    background: #F7FBFD;
}

.certification-intro .content-container {
    max-width: 900px;
}

.certification-intro p {
    margin-bottom: 16px;

    color: #444444;

    font-size: 17px;

    line-height: 1.8;
}

.certification-intro p:last-child {
    margin-bottom: 0;
}

.certification-intro p:first-of-type {
    padding-left: 18px;

    border-left: 4px solid #55BFEF;
}


/* =========================================================
   9. NIVEAUX DE CERTIFICATION
========================================================= */

.certification-levels {
    padding: 75px 0;

    background: #ffffff;
}

.levels-grid {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 20px;
}

.level-card {
    position: relative;

    min-height: 230px;

    padding: 30px 25px;

    background: #ffffff;

    border: 1px solid #eeeeee;

    border-radius: 12px;

    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);

    transition: transform 0.25s ease,
                box-shadow 0.25s ease;
}

.level-card:hover {
    transform: translateY(-5px);

    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.09);
}


/* BARRE SUPÉRIEURE */

.level-card::before {
    content: "";

    position: absolute;

    top: 0;
    left: 0;

    width: 100%;

    height: 5px;

    border-radius: 12px 12px 0 0;
}

.level-card.silver::before {
    background: #9EA7AD;
}

.level-card.gold::before {
    background: #F9B233;
}

.level-card.platinum::before {
    background: #55BFEF;
}

.level-card.diamond::before {
    background: #E53935;
}


/* ICÔNE */

.level-icon {
    margin-bottom: 18px;

    font-size: 30px;

    color: #F9B233;
}

.level-card.silver .level-icon {
    color: #8B949A;
}

.level-card.platinum .level-icon {
    color: #55BFEF;
}

.level-card.diamond .level-icon {
    color: #E53935;
}

.level-card h3 {
    margin-bottom: 12px;

    font-size: 24px;

    line-height: 1.2;
}

.level-card.silver h3 {
    color: #727B81;
}

.level-card.gold h3 {
    color: #C58A00;
}

.level-card.platinum h3 {
    color: #299BCB;
}

.level-card.diamond h3 {
    color: #D52E2E;
}

.level-card p {
    color: #555555;

    font-size: 14px;

    line-height: 1.7;
}


/* =========================================================
   10. SEUILS
========================================================= */

.thresholds-section {
    padding: 75px 0;

    background: #F7F7F7;
}

.threshold-columns {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 25px;
}

.threshold-box {
    padding: 30px;

    background: #ffffff;

    border: 1px solid #eeeeee;

    border-radius: 12px;

    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
}

.threshold-box:first-child {
    border-top: 5px solid #55BFEF;
}

.threshold-box:last-child {
    border-top: 5px solid #F9B233;
}

.threshold-box h3 {
    margin-bottom: 22px;

    font-size: 25px;

    line-height: 1.2;
}

.threshold-box:first-child h3 {
    color: #55BFEF;
}

.threshold-box:last-child h3 {
    color: #D89A0A;
}

.threshold-row {
    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 15px;

    padding: 14px 0;

    border-bottom: 1px solid #eeeeee;
}

.threshold-row:last-child {
    border-bottom: none;
}

.threshold-name {
    color: #333333;

    font-size: 14px;

    font-weight: 700;
}

.threshold-row strong {
    font-size: 15px;

    font-weight: 800;
}

.threshold-box:first-child .threshold-row strong {
    color: #299BCB;
}

.threshold-box:last-child .threshold-row strong {
    color: #C58A00;
}


/* =========================================================
   11. MÉTHODOLOGIE
========================================================= */

.methodology-section {
    padding: 75px 0;

    background: #ffffff;
}

.methodology-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 20px;
}

.method-card {
    position: relative;

    min-height: 145px;

    padding: 30px 25px 25px;

    background: #F7FBFD;

    border: 1px solid #eeeeee;

    border-radius: 12px;

    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);

    transition: 0.25s ease;
}

.method-card:hover {
    transform: translateY(-4px);

    border-color: #55BFEF;

    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.07);
}

.method-number {
    position: absolute;

    top: -10px;
    left: 20px;

    width: 30px;
    height: 30px;

    display: flex;

    align-items: center;
    justify-content: center;

    border-radius: 50%;

    background: #55BFEF;

    color: #ffffff;

    font-size: 13px;

    font-weight: 800;
}

.method-card:nth-child(2) .method-number,
.method-card:nth-child(4) .method-number,
.method-card:nth-child(6) .method-number {
    background: #F9B233;

    color: #111111;
}

.method-card p {
    color: #444444;

    font-size: 15px;

    line-height: 1.7;
}

.method-card strong {
    color: #111111;
}


/* =========================================================
   12. PLATEFORMES
========================================================= */

.platforms-section {
    padding: 75px 0;

    background: #F7FBFD;
}

.platforms-grid {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 20px;
}

.platform-card {
    min-height: 180px;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    padding: 25px;

    background: #ffffff;

    border: 1px solid #eeeeee;

    border-radius: 12px;

    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);

    transition: 0.25s ease;
}

.platform-card:hover {
    transform: translateY(-5px);

    border-color: #55BFEF;

    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.platform-logo {
    width: 85px;
    height: 85px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-bottom: 15px;
}

.platform-logo img {
    max-width: 75px;
    max-height: 75px;

    width: auto;
    height: auto;

    object-fit: contain;
}

.platform-card p {
    color: #222222;

    font-size: 14px;

    font-weight: 700;

    text-align: center;
}


/* =========================================================
   13. PREUVES
========================================================= */

.proofs-section {
    padding: 75px 0;

    background: #ffffff;
}

.proofs-list {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 15px;
}

.proof-item {
    display: flex;

    align-items: flex-start;

    gap: 14px;

    padding: 18px 20px;

    background: #F7FBFD;

    border: 1px solid #eeeeee;

    border-radius: 10px;

    transition: 0.2s ease;
}

.proof-item:hover {
    border-color: #55BFEF;

    background: #F3FAFD;
}

.proof-item span {
    flex: 0 0 auto;

    width: 24px;
    height: 24px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-top: 1px;

    border-radius: 50%;

    background: #55BFEF;

    color: #ffffff;

    font-size: 12px;

    font-weight: 800;
}

.proof-item p {
    color: #444444;

    font-size: 14px;

    line-height: 1.6;
}


/* =========================================================
   14. NOTE DE VÉRIFICATION
========================================================= */

.verification-note {
    margin-top: 25px;

    padding: 22px 25px;

    background: #FFF8E8;

    border-left: 5px solid #F9B233;

    border-radius: 10px;
}

.verification-note strong {
    display: block;

    margin-bottom: 7px;

    color: #A87500;

    font-size: 15px;
}

.verification-note strong::before {
    content: "🔎 ";

}

.verification-note p {
    color: #555555;

    font-size: 14px;

    line-height: 1.7;
}


/* =========================================================
   15. FRAIS
========================================================= */

.fees-section {
    padding: 75px 0;

    background: #F7F7F7;
}

.fees-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 25px;

    margin-bottom: 30px;
}

.fee-card {
    padding: 30px;

    background: #ffffff;

    border: 1px solid #eeeeee;

    border-radius: 12px;

    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);

    text-align: center;

    transition: 0.25s ease;
}

.fee-card:hover {
    transform: translateY(-4px);
}

.fee-card:first-child {
    border-top: 5px solid #55BFEF;
}

.fee-card:last-child {
    border-top: 5px solid #F9B233;
}

.fee-card h3 {
    margin-bottom: 10px;

    color: #111111;

    font-size: 22px;
}

.fee-price {
    margin-bottom: 10px;

    color: #55BFEF;

    font-size: 38px;

    line-height: 1;

    font-weight: 800;
}

.fee-card:last-child .fee-price {
    color: #D89A0A;
}

.fee-card p {
    color: #666666;

    font-size: 14px;
}


/* =========================================================
   16. ARTISTES AFFILIÉS
========================================================= */

.affiliated-note {
    padding: 28px 30px;

    background: #F3FAF6;

    border: 1px solid #D8EEE1;

    border-left: 5px solid #16834B;

    border-radius: 12px;
}

.affiliated-note h3 {
    margin-bottom: 12px;

    color: #16834B;

    font-size: 22px;
}

.affiliated-note h3::before {
    content: "✅ ";

}

.affiliated-note p {
    margin-bottom: 10px;

    color: #444444;

    font-size: 15px;

    line-height: 1.7;
}

.affiliated-note p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   17. DEMANDE DE CERTIFICATION
========================================================= */

.request-section {
    padding: 80px 0;

    background: #55BFEF;

    color: #ffffff;

    text-align: center;

    position: relative;

    overflow: hidden;
}

.request-section::before {
    content: "🏆";

    position: absolute;

    top: 25px;
    left: 8%;

    font-size: 70px;

    opacity: 0.12;
}

.request-section::after {
    content: "🎵";

    position: absolute;

    right: 8%;
    bottom: 15px;

    font-size: 65px;

    opacity: 0.12;
}

.request-section .content-container {
    position: relative;

    z-index: 2;
}

.request-section h2 {
    color: #ffffff;

    margin-bottom: 15px;
}

.request-section h2::after {
    display: none;
}

.request-section p {
    max-width: 650px;

    margin: 0 auto 25px;

    color: rgba(255, 255, 255, 0.92);

    font-size: 16px;
}

.request-button {
    display: inline-flex;

    align-items: center;

    justify-content: center;

    padding: 13px 25px;

    background: #ffffff;

    color: #111111;

    border-radius: 6px;

    font-size: 13px;

    font-weight: 800;

    transition: 0.25s ease;
}

.request-button::before {
    content: "📩";

    margin-right: 8px;
}

.request-button:hover {
    background: #F9B233;

    color: #111111;

    transform: translateY(-2px);
}


/* =========================================================
   18. CERTIFICATIONS EXPORT
========================================================= */

.export-section {
    padding: 75px 0;

    background: #ffffff;
}

.export-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 20px;
}

.export-card {
    display: block;

    min-height: 210px;

    padding: 30px;

    border-radius: 12px;

    transition: 0.25s ease;
}

.export-card:hover {
    transform: translateY(-5px);
}

.export-card:first-child {
    background: #F3FAFD;

    border: 1px solid #D8EFF9;

    border-top: 5px solid #55BFEF;
}

.export-card:last-child {
    background: #FFF4F4;

    border: 1px solid #F1D5D5;

    border-top: 5px solid #E53935;
}

.export-card h3 {
    margin-bottom: 15px;

    font-size: 22px;

    line-height: 1.3;
}

.export-card:first-child h3 {
    color: #299BCB;
}

.export-card:last-child h3 {
    color: #D52E2E;
}

.export-card p {
    margin-bottom: 20px;

    color: #555555;

    font-size: 14px;

    line-height: 1.7;
}

.export-card span {
    font-size: 13px;

    font-weight: 800;
}

.export-card:first-child span {
    color: #299BCB;
}

.export-card:last-child span {
    color: #D52E2E;
}


/* =========================================================
   19. BAS DE PAGE
========================================================= */

.imc-bottom {
    padding: 35px 20px;

    background: #111111;

    color: #ffffff;

    text-align: center;
}

.imc-bottom h3 {
    margin-bottom: 7px;

    color: #ffffff;

    font-size: 14px;

    font-weight: 800;

    letter-spacing: 1px;
}

.imc-bottom .motto {
    margin-bottom: 10px;

    color: #F9B233;

    font-size: 14px;
}

.imc-bottom p {
    color: #AAAAAA;

    font-size: 12px;
}


/* =========================================================
   20. TABLETTE
========================================================= */

@media (max-width: 850px) {

    .levels-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .methodology-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .proofs-list {
        grid-template-columns: 1fr;
    }

}


/* =========================================================
   21. MOBILE
========================================================= */

@media (max-width: 650px) {

    .header-inner {
        width: 90%;

        min-height: 90px;
    }

    .site-header .logo img {
        width: 140px;
    }

    .site-header .menu-btn {
        padding: 10px 20px;

        font-size: 12px;
    }


    .hero-small {
        padding: 65px 6% 60px;
    }

    .hero-small h1 {
        font-size: 36px;
    }

    .hero-small p {
        font-size: 16px;
    }


    .certification-intro,
    .certification-levels,
    .thresholds-section,
    .methodology-section,
    .platforms-section,
    .proofs-section,
    .fees-section,
    .export-section {
        padding: 60px 0;
    }


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

    .level-card {
        min-height: auto;
    }


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


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


    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }


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


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


    .threshold-box,
    .fee-card,
    .export-card {
        padding: 25px 20px;
    }


    .content-container {
        width: 88%;
    }

}


/* =========================================================
   22. PETITS ÉCRANS
========================================================= */

@media (max-width: 400px) {

    .site-header .logo img {
        width: 125px;
    }

    .hero-small h1 {
        font-size: 32px;
    }

    .platforms-grid {
        gap: 12px;
    }

    .platform-card {
        min-height: 155px;

        padding: 18px 10px;
    }

    .platform-logo {
        width: 70px;
        height: 70px;
    }

    .platform-logo img {
        max-width: 60px;
        max-height: 60px;
    }

    .threshold-row {
        gap: 10px;
    }

    .threshold-row strong {
        text-align: right;
    }

}