html,
body {
    margin: 0;
    padding: 0;
    background: #050505;
    font-family: Arial, Helvetica, sans-serif;
}

.home-page {
    background: #050505;
    color: #111;
    overflow: hidden;
}

.bt-container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.bt-hero {
    position: relative;
    min-height:72vh;
    max-height:780px;
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-color: #050505;
    color: #fff;
    display: flex;
    align-items: center;
}

.bt-hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(0,0,0,.96) 0%, rgba(0,0,0,.78) 34%, rgba(0,0,0,.28) 68%, rgba(0,0,0,.14) 100%),
        linear-gradient(0deg, rgba(0,0,0,.86) 0%, rgba(0,0,0,.08) 55%, rgba(0,0,0,.32) 100%);
}

.bt-hero__content {
    position: relative;
    z-index: 2;
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding-top: 40px;
}

.bt-kicker {
    color: #ef2f2f;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: .12em;
    font-weight: 900;
    margin: 0 0 12px;
}

.bt-hero h1 {
    margin: 0;
    text-transform: uppercase;
    font-size: clamp(70px, 8.5vw, 132px);
    line-height: .86;
    letter-spacing: -.06em;
    font-weight: 1000;
    color: #fff;
}

.bt-hero h1 span {
    display: block;
    color: #e2382d;
}

.bt-subtitle {
    margin: 28px 0 28px;
    font-size: 21px;
    font-weight: 800;
}

.bt-actions {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
}

.bt-btn {
    min-height: 48px;
    padding: 0 28px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .02em;
}

.bt-btn--red {
    background: #e5352d;
    color: #fff !important;
    box-shadow: 0 12px 30px rgba(229,53,45,.25);
}

.bt-btn--ghost {
    border: 1px solid rgba(255,255,255,.65);
    color: #fff !important;
    background: rgba(0,0,0,.15);
}

.bt-btn--outline {
    border: 1px solid #e5352d;
    color: #e5352d !important;
    background: transparent;
}

.bt-socials {
    position: absolute;
    z-index: 3;
    right: 32px;
    top: 40%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    color: white;
    font-size: 17px;
}

.bt-socials span {
    width: 2px;
    height: 38px;
    background: #e5352d;
}

.bt-section {
    padding: 72px 0;
}

.bt-section--light {
    background: #f7f7f7;
}

.bt-title {
    margin: 0 0 48px;
    text-align: center;
    font-size: 32px;
    line-height: 1;
    font-weight: 1000;
    text-transform: uppercase;
    letter-spacing: -.03em;
}

.bt-title::after {
    content: "";
    display: block;
    width: 54px;
    height: 3px;
    background: #e5352d;
    margin: 18px auto 0;
}

.bt-title--white {
    color: white;
}

.bt-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.bt-card {
    position: relative;
    height: 260px;
    border-radius: 7px;
    overflow: hidden;
    background: #111;
    box-shadow: 0 18px 45px rgba(0,0,0,.18);
}

.bt-card__image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.01);
    transition: transform .35s ease;
}

.bt-card:hover .bt-card__image {
    transform: scale(1.1);
}

.bt-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(0,0,0,.94) 0%, rgba(0,0,0,.42) 55%, rgba(0,0,0,.12) 100%);
}

.bt-card__content {
    position: absolute;
    left: 26px;
    right: 26px;
    bottom: 24px;
    color: white;
    z-index: 2;
}

.bt-card__icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #d8322d;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
}

.bt-card h3 {
    margin: 0 0 8px;
    color: #fff;
    font-size: 24px;
    font-weight: 1000;
    text-transform: uppercase;
}

.bt-card p {
    margin: 0 0 12px;
    color: #ddd;
    font-size: 14px;
}

.bt-card a {
    color: #ff4a3d;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 900;
}

.bt-card--discipline {
    height: 285px;
    border: 1px solid rgba(0, 0, 0, .08);
    border-left: 6px solid var(--card-accent);
    background:
        radial-gradient(circle at 90% 12%, color-mix(in srgb, var(--card-accent) 22%, transparent), transparent 38%),
        linear-gradient(145deg, #171717, #0d0d0d);
    transition: transform .25s ease, box-shadow .25s ease;
}

.bt-card--discipline:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 55px rgba(0, 0, 0, .25);
}

.bt-card--discipline .bt-card__content {
    position: relative;
    inset: auto;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 24px;
}

.bt-card--discipline .bt-card__icon {
    width: 42px;
    height: 42px;
    margin-bottom: 14px;
    background: var(--card-accent);
}

.bt-card--discipline h3 {
    font-size: 21px;
    line-height: 1.08;
}

.bt-card__details {
    display: grid;
    gap: 7px;
    margin: 4px 0 16px;
}

.bt-card__details span {
    display: flex;
    align-items: center;
    gap: 9px;
    color: rgba(255, 255, 255, .72);
    font-size: 13px;
}

.bt-card__details i {
    width: 14px;
    color: var(--card-accent);
    text-align: center;
}

.bt-card--discipline a {
    margin-top: auto;
    color: var(--card-accent);
}

.home-discipline-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 360px;
    padding: 40px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 18px;
    background: #111;
    box-shadow: 0 18px 45px rgba(0, 0, 0, .18);
    transition: transform .35s ease, box-shadow .35s ease;
}

.home-discipline-card::before {
    content: "";
    position: absolute;
    z-index: 1;
    inset: 0 auto 0 0;
    width: 7px;
    background: var(--accent);
    box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 48%, transparent);
    transition: width .35s ease, filter .35s ease;
}

.home-discipline-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, var(--accent), transparent 70%);
    opacity: .15;
    transition: opacity .35s ease;
}

.home-discipline-card > * {
    position: relative;
    z-index: 2;
}

.home-discipline-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, .35), 0 0 28px color-mix(in srgb, var(--accent) 13%, transparent);
}

.home-discipline-card:hover::before {
    width: 9px;
    filter: brightness(1.15);
}

.home-discipline-card h3 {
    margin: 0 0 12px;
    color: #fff;
    font-size: 34px;
    font-weight: 800;
    line-height: 1.12;
}

.home-discipline-description {
    margin: 0 0 16px;
    color: rgba(255, 255, 255, .75);
    line-height: 1.7;
}

.home-discipline-meta {
    display: grid;
    gap: 7px;
    margin: 2px 0 22px;
}

.home-discipline-meta span {
    min-height: 30px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 8px;
    background: rgba(255, 255, 255, .025);
    color: rgba(255, 255, 255, .86);
    font-size: 14px;
}

.home-discipline-meta i {
    width: 20px;
    color: var(--accent);
    font-size: 18px !important;
    text-align: center;
}

.home-discipline-card a {
    margin-top: auto;
    color: var(--accent);
    font-weight: 700;
    text-decoration: none;
    transition: transform .25s ease;
}

.home-discipline-card a:hover {
    transform: translateX(4px);
}

.bt-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: #222;
}

.bt-center {
    text-align: center;
    margin-top: 34px;
}

.bt-club {
    background:
        radial-gradient(circle at 20% 50%, rgba(229,53,45,.22), transparent 28%),
        #050505;
    padding: 72px 0;
    color: white;
}

.bt-club__grid {
    display: grid;
    grid-template-columns: 1.08fr 1fr;
    align-items: center;
    gap: 70px;
}

.bt-club__media img,
.bt-club__media video {
    width: 100%;
    height: 390px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(229,53,45,.18);
}

.bt-club__media .bt-club__logo {
    object-fit: contain;
    object-position: center;
    padding: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.bt-club__text h2 {
    margin: 0 0 22px;
    color: white;
    font-size: 42px;
    font-weight: 900;
    letter-spacing: -.04em;
}

.bt-club__text h2::after {
    content: "";
    display: block;
    width: 54px;
    height: 3px;
    background: #e5352d;
    margin-top: 20px;
}

.bt-club__text p {
    color: #ddd;
    line-height: 1.7;
    margin-bottom: 0;
}

.bt-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin: 34px 0 28px;
}

.bt-values div {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bt-values strong {
    color: #e5352d;
    font-size: 24px;
}

.bt-values span {
    color: white;
    font-weight: 900;
    font-size: 14px;
}

.bt-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr) 1.05fr;
    gap: 24px;
}

.bt-news-card {
    position: relative;
    background: white;
    border-radius: 7px;
    overflow: hidden;
    box-shadow: 0 12px 36px rgba(0,0,0,.09);
}

.bt-news-card__date {
    position: absolute;
    z-index: 2;
    left: 0;
    top: 0;
    width: 58px;
    height: 70px;
    background: #e5352d;
    color: white;
    display: grid;
    place-items: center;
    text-align: center;
    text-transform: uppercase;
}

.bt-news-card__date strong {
    display: block;
    font-size: 22px;
    line-height: 1;
}

.bt-news-card__date span {
    font-size: 11px;
    font-weight: 900;
}

.bt-news-card__image {
    height: 128px;
    background-size: cover;
    background-position: center;
}

.bt-news-card__body {
    padding: 20px;
}

.bt-news-card h3,
.bt-event-card h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 900;
}

.bt-news-card p {
    font-size: 14px;
    color: #555;
}

.bt-news-card a {
    color: #e5352d;
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    text-decoration: none;
}

.bt-event-card {
    background: white;
    border: 1px solid #eee;
    border-radius: 8px;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 30px;
    box-shadow: 0 12px 36px rgba(0,0,0,.04);
}

.bt-event-card__icon {
    width: 68px;
    height: 68px;
    border: 1px solid #e5352d;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #e5352d;
    margin-bottom: 12px;
}

.bt-event-card p {
    color: #e5352d;
    text-transform: uppercase;
    font-weight: 900;
    font-size: 12px;
    margin: 0;
}

.bt-event-card span {
    color: #e5352d;
    font-weight: 700;
    margin-bottom: 20px;
}

.bt-professors {
    background:
        linear-gradient(0deg, rgba(0,0,0,.95), rgba(0,0,0,.95)),
        url('/images/accueil/champion.jpg');
    background-size: cover;
    background-position: center;
    padding: 60px 0;
}

.bt-prof-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 22px;
}

.bt-prof-card {
    background: #101010;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 8px;
    overflow: hidden;
}

.bt-prof-card__image {
    height: 170px;
    background-size: cover;
    background-position: center top;
}

.bt-prof-card__body {
    position: relative;
    padding: 18px;
    color: white;
}

.bt-prof-card h3 {
    font-size: 15px;
    text-transform: uppercase;
    margin: 0 0 6px;
    font-weight: 900;
}

.bt-prof-card p {
    margin: 0;
    color: #bbb;
    font-size: 12px;
}

.bt-prof-card span {
    position: absolute;
    right: 16px;
    top: 18px;
    background: #e5352d;
    color: white;
    width: 23px;
    height: 23px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 900;
}

.bt-planning {
    background: linear-gradient(135deg, #8e120d, #e5352d);
    color: white;
    padding: 46px 0;
}

.bt-planning__grid {
    display: grid;
    grid-template-columns: 1.2fr repeat(3, 1fr) 1.2fr;
    gap: 26px;
    align-items: center;
}

.bt-planning h2 {
    margin: 0;
    color: white;
    font-size: 24px;
    text-transform: uppercase;
    font-weight: 1000;
}

.bt-day {
    border-left: 1px solid rgba(255,255,255,.25);
    padding-left: 22px;
}

.bt-day h3 {
    text-transform: uppercase;
    font-size: 15px;
    font-weight: 900;
    margin-bottom: 12px;
}

.bt-day p,
.bt-day span {
    display: block;
    color: white;
    font-size: 13px;
    margin: 0 0 5px;
}

.bt-planning__button {
    text-align: right;
}

@media (max-width: 1000px) {
    .bt-cards,
    .bt-club__grid,
    .bt-news-grid,
    .bt-prof-grid,
    .bt-planning__grid {
        grid-template-columns: 1fr;
    }

    .bt-socials {
        display: none;
    }

    .bt-hero {
        min-height: 80vh;
    }

    .bt-hero h1 {
        font-size: 64px;
    }

    .bt-values {
        grid-template-columns: 1fr;
    }

    .bt-planning__button {
        text-align: left;
    }
}
.bt-planning {
    background: linear-gradient(135deg, #8e120d, #e5352d);
    color: white;
    padding: 54px 0 62px;
}

.bt-planning-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 28px;
    margin-bottom: 34px;
}

.bt-planning-header h2 {
    margin: 0;
    color: white;
    font-size: 30px;
    text-transform: uppercase;
    font-weight: 1000;
    letter-spacing: -.03em;
}

.bt-schedule-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.bt-schedule-day {
    background: rgba(0, 0, 0, .18);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 8px;
    padding: 20px 18px;
    min-height: 190px;
}

.bt-schedule-day h3 {
    text-transform: uppercase;
    font-size: 15px;
    font-weight: 900;
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, .2);
}

.bt-schedule-course {
    display: flex;
    gap: 10px;
    align-items: baseline;
    margin-bottom: 12px;
}

.bt-schedule-course span {
    color: #fff;
    font-weight: 900;
    font-size: 13px;
    opacity: .9;
    white-space: nowrap;
}

.bt-schedule-course p {
    margin: 0;
    color: white;
    font-size: 13px;
    line-height: 1.35;
}

@media (max-width: 1000px) {
    .bt-planning-header {
        flex-direction: column;
        align-items: flex-start;
    }

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

@media (max-width: 600px) {
    .bt-schedule-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .bt-container {
        width: min(100% - 32px, 560px);
    }

    .bt-hero {
        min-height: 72vh;
        background-position: center top;
    }

    .bt-hero__content {
        padding-top: 40px;
    }

    .bt-hero h1 {
        font-size: clamp(54px, 17vw, 82px);
        line-height: .88;
    }

    .bt-subtitle {
        font-size: 16px;
        max-width: 280px;
    }

    .bt-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .bt-btn {
        width: 100%;
        max-width: 280px;
    }

    .bt-socials {
        display: none;
    }

    .bt-section {
        padding: 48px 0;
    }

    .bt-title {
        font-size: 26px;
        margin-bottom: 32px;
    }

    .bt-cards,
    .bt-news-grid,
    .bt-prof-grid {
        grid-template-columns: 1fr;
    }

    .bt-card {
        height: 230px;
    }

    .bt-club {
        padding: 52px 0;
    }

    .bt-club__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .bt-club__media img,
    .bt-club__media video {
        height: 240px;
    }

    .bt-club__text h2 {
        font-size: 30px;
    }

    .bt-values {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .bt-prof-card__image {
        height: 230px;
    }

    .bt-planning {
        padding: 46px 0;
    }

    .bt-planning-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .bt-planning-header h2 {
        font-size: 28px;
    }

    .bt-schedule-grid {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        padding-bottom: 14px;
        scroll-snap-type: x mandatory;
    }

    .bt-schedule-day {
        min-width: 240px;
        scroll-snap-align: start;
    }

    .bt-schedule-grid::-webkit-scrollbar {
        height: 6px;
    }

    .bt-schedule-grid::-webkit-scrollbar-thumb {
        background: rgba(255,255,255,.45);
        border-radius: 999px;
    }
}

.bt-socials a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
    text-decoration: none;
    transition: color .25s ease, transform .25s ease;
}

.bt-socials a:hover,
.bt-socials a:focus-visible {
    color: #e5352d;
    transform: translateY(-2px) scale(1.08);
}