/* ============================================================
   HEADER
============================================================ */

.site-header {

    position: fixed;

    top: 0;
    left: 0;
    right: 0;

    z-index: 1000;

    width: 100%;

    background:
        var(--header-color);

    border-bottom:
        var(--standard-border);

    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: transform var(--standard-transition);

}

.site-header.header-hidden {
    transform: translateY(-100%);
}


/* ============================================================
   HEADER INNER
============================================================ */

.header-inner {

    display: flex;

    width: 100%;

    height: 145px;

}


/* ============================================================
   LOGO
============================================================ */

.header-logo {

    flex: 0 0 165px;

    width: 165px;

    height: 145px;

    display: flex;

    align-items: center;

    justify-content: center;

    background:
        var(--section-tertiary-color);

    border-right:
        var(--standard-border);

}


.header-logo img {

    width: 130px;

    height: 130px;

    object-fit: contain;

    filter: drop-shadow(0 0 14px rgba(var(--brand-purple-rgb), 0.38));
    transition: transform var(--standard-transition), filter var(--standard-transition);
}

.header-logo:hover img {
    transform: scale(1.05) rotate(-2deg);
    filter: drop-shadow(0 0 18px rgba(var(--brand-purple-rgb), 0.55));

}


/* ============================================================
   RIGHT SIDE
============================================================ */

.header-content {

    flex: 1;

    min-width: 0;

    display: flex;

    flex-direction: column;

}


/* ============================================================
   CLUB NAME
============================================================ */

.header-title {

    flex: 0 0 78px;

    height: 78px;

    display: flex;

    align-items: center;

    padding:
        0
        var(--spacing-xl);

    background:
        linear-gradient(100deg, var(--header-color), var(--section-tertiary-color));

    color:
        var(--light-text);

    font-family:
        var(--body-font);

    min-width: 0;

    overflow: hidden;

    font-size: clamp(22px, 2.8vw, 38px);

    font-weight: 700;

    line-height: 1;

    letter-spacing: 0.01em;

    white-space: nowrap;
    text-overflow: clip;

    text-shadow: 0 2px 10px rgba(var(--brand-purple-rgb), 0.3);

}


/* ============================================================
   NAVIGATION
============================================================ */

.main-navigation {

    flex: 1;

    display: flex;

    align-items: center;

    justify-content: flex-start;

    gap:
        var(--spacing-sm);

    padding:
        8px
        var(--spacing-xl);

    background:
        linear-gradient(100deg, var(--section-dark-color), var(--section-secondary-color));

    border-top: 1px solid rgba(255, 255, 255, 0.06);

}


/* ============================================================
   NAVIGATION BUTTONS
============================================================ */

.main-navigation a {

    flex: 0 0 auto;

    display: inline-flex;

    align-items: center;

    justify-content: center;

    min-height: 40px;

    padding:
        0
        20px;

    background:
        var(--box-secondary-color);

    border:
        2px solid var(--border-color);

    color:
        var(--header-text);

    font-family:
        var(--body-font);

    font-size: 14px;

    font-weight: 800;

    letter-spacing: 0.08em;

    white-space: nowrap;

    transition:
        background var(--fast-transition),
        border-color var(--fast-transition),
        color var(--fast-transition),
        transform var(--fast-transition);

    border-radius: var(--radius-small);

}


.main-navigation a:hover {

    background:
        var(--box-color);

    border-color:
        var(--primary-color);

    color:
        var(--primary-color);

    transform:
        translateY(-2px);

}


/* ============================================================
   JOIN US
============================================================ */

.main-navigation .join-button {

    background:
        var(--button-color);

    border:
        2px solid var(--primary-color);

    color:
        var(--button-text);

}


.main-navigation .join-button:hover {

    background:
        var(--button-hover);

    border-color:
        var(--button-hover);

    color:
        var(--button-text);

}

/* ============================================================
   FOOTER
============================================================ */

.site-footer {
    padding: 44px var(--page-padding) 0;
    background:
        linear-gradient(135deg, rgba(5, 5, 5, 0.96), rgba(var(--brand-purple-rgb), 0.22)),
        var(--carbon-weave-background);
    border-top: 1px solid var(--border-color);
    color: var(--footer-text);
}

.footer-top,
.footer-bottom {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: minmax(240px, 1.6fr) repeat(2, minmax(140px, 1fr));
    gap: var(--spacing-2xl);
    padding-bottom: 44px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.brand-logo {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    color: var(--accent-green);
    font-family: var(--display-font);
    font-size: 38px;
    font-weight: 900;
}

.footer-brand strong,
.footer-brand span {
    display: block;
}

.footer-brand strong {
    font-family: var(--display-font);
    font-size: 34px;
    letter-spacing: 0.08em;
}

.footer-brand span,
.footer-kicker {
    color: var(--accent-gray);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.footer-column h4 {
    margin: 0 0 8px;
    color: var(--accent-green);
    font-size: 11px;
    letter-spacing: 0.16em;
}

.footer-column a {
    color: var(--light-secondary-text);
    font-size: 13px;
    transition: color var(--fast-transition), transform var(--fast-transition);
}

.footer-column a:hover {
    color: var(--primary-light);
    transform: translateX(3px);
}

.footer-sponsors {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 30px var(--page-padding);
    background:
        linear-gradient(110deg, rgba(8, 8, 8, 0.88), rgba(var(--brand-purple-rgb), 0.28)),
        var(--carbon-weave-background);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.footer-sponsors-inner {
    display: flex;
    width: 100%;
    max-width: var(--content-width);
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    margin: 0 auto;
}

.footer-sponsors-heading h2 {
    margin: 4px 0 0;
    font-family: var(--body-font);
    font-size: clamp(22px, 2.5vw, 32px);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.footer-kicker {
    margin: 0;
}

.sponsor-logo-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: var(--spacing-sm);
}

.sponsor-logo-list a {
    display: grid;
    min-width: 170px;
    min-height: 78px;
    padding: 12px 18px;
    place-items: center;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-medium);
    transition: transform var(--fast-transition), box-shadow var(--fast-transition);
}

.sponsor-logo-list a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-small);
}

.sponsor-logo {
    width: auto;
    max-width: 190px;
    max-height: 52px;
    object-fit: contain;
}

.sponsor-logo[alt="SOLIDWORKS"] {
    width: 190px;
    height: 52px;
    object-fit: cover;
}

.sponsor-empty {
    margin: 0;
    color: var(--muted-text);
    font-size: 12px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: 18px 0;
    color: var(--muted-text);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

/* ============================================================
   MOBILE
============================================================ */

@media (max-width: 800px) {

    .header-inner {

        height: 115px;

    }


    .header-logo {

        flex: 0 0 105px;

        width: 105px;

        height: 115px;

    }


    .header-logo img {

        width: 90px;

        height: 90px;

    }


    .header-title {

        flex: 0 0 60px;

        height: 60px;

        padding:
            0
            var(--spacing-md);

        font-size: clamp(10px, 3.1vw, 21px);
        letter-spacing: 0;

    }


    .main-navigation {

        overflow-x: auto;

        padding:
            5px
            var(--spacing-md);

        gap:
            6px;

        scrollbar-width: none;

    }


    .main-navigation::-webkit-scrollbar {

        display: none;

    }


    .main-navigation a {

        min-height: 38px;

        padding:
            0
            14px;

        font-size: 11px;

    }

    .site-footer {
        padding-right: var(--page-padding-mobile);
        padding-left: var(--page-padding-mobile);
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand,
    .footer-sponsors {
        grid-column: 1 / -1;
    }

    .footer-sponsors-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .sponsor-logo-list {
        justify-content: flex-start;
        margin-top: var(--spacing-lg);
    }

    .sponsor-logo-list a {
        min-width: min(170px, calc(50% - var(--spacing-xs)));
        flex: 1 1 140px;
    }

    .footer-bottom {
        display: block;
    }

    .footer-bottom span {
        display: block;
        margin-top: var(--spacing-xs);
    }

}