/* ==========================================================================
   JIM Student Theme — Header
   ========================================================================== */

/* ── Utility bar ── */
.jim-utility-bar {
    background: var(--jim-surface);
    border-bottom: 1px solid var(--jim-border);
    font-size: .8125rem;
}

.jim-utility-bar__inner {
    max-width: var(--jim-max-width);
    margin-inline: auto;
    padding: var(--jim-sp-1) var(--jim-content-padding);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--jim-sp-4);
}

.jim-utility-bar a {
    color: var(--jim-navy);
    font-weight: 600;
}

.jim-utility-bar a:hover {
    color: var(--jim-teal);
}

/* Language dropdown */
.jim-language {
    position: relative;
}

.jim-language summary {
    cursor: pointer;
    list-style: none;
    color: var(--jim-navy);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.jim-language summary::-webkit-details-marker {
    display: none;
}

.jim-language[open] ul {
    display: block;
}

.jim-language ul {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--jim-white);
    border: 1px solid var(--jim-border);
    border-radius: var(--jim-radius-sm);
    box-shadow: var(--jim-shadow-md);
    z-index: 100;
    list-style: none;
    margin: 4px 0 0;
    padding: var(--jim-sp-1) 0;
    min-width: 140px;
}

.jim-language li a {
    display: block;
    padding: var(--jim-sp-2) var(--jim-sp-4);
    color: var(--jim-text);
}

.jim-language li a:hover {
    background: var(--jim-surface);
    color: var(--jim-teal);
}

/* ── Main header ── */
.jim-header {
    background: var(--jim-white);
    padding: var(--jim-sp-3) 0;
    border-bottom: 1px solid var(--jim-border);
    position: relative;
    z-index: 50;
}

.jim-header__inner {
    max-width: var(--jim-max-width);
    margin-inline: auto;
    padding-inline: var(--jim-content-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--jim-sp-4);
}

/* Logo group */
.jim-header__brand {
    display: flex;
    align-items: center;
    gap: var(--jim-sp-4);
    flex-shrink: 0;
}

.jim-header__logo-uin {
    display: flex;
    align-items: center;
    gap: var(--jim-sp-3);
}

.jim-header__logo-uin img {
    height: 42px;
    max-height: 44px;
    width: auto;
    object-fit: contain;
}

.jim-header__uin-text {
    font-size: .75rem;
    font-weight: 600;
    color: var(--jim-navy);
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: .02em;
}

.jim-header__divider {
    width: 1px;
    height: 40px;
    background: var(--jim-border);
}

.jim-header__logo-jim {
    display: flex;
    align-items: center;
    gap: var(--jim-sp-3);
}

.jim-header__jim-mark {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--jim-teal);
    letter-spacing: -.02em;
    line-height: 1;
}

.jim-header__jim-text {
    font-size: .75rem;
    color: var(--jim-navy);
    line-height: 1.3;
}

.jim-header__jim-text strong {
    display: block;
    font-weight: 600;
}

/* Motto */
.jim-header__motto {
    font-size: .75rem;
    font-style: italic;
    color: var(--jim-emerald);
    font-weight: 500;
    white-space: nowrap;
}

/* Right actions */
.jim-header__actions {
    display: flex;
    align-items: center;
    gap: var(--jim-sp-3);
    flex-shrink: 0;
}

.jim-header__search-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--jim-sp-2);
    color: var(--jim-navy);
    transition: color var(--jim-duration) var(--jim-ease);
    border-radius: var(--jim-radius-sm);
}

.jim-header__search-btn:hover {
    color: var(--jim-teal);
}

.jim-header__search-btn svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.jim-header__login,
.jim-header__register {
    font-size: .8125rem;
    font-weight: 600;
    padding: var(--jim-sp-2) var(--jim-sp-4);
    border-radius: var(--jim-radius-sm);
    transition: all var(--jim-duration) var(--jim-ease);
}

.jim-header__login {
    color: var(--jim-navy);
    border: 1px solid var(--jim-border);
    background: var(--jim-white);
}

.jim-header__login:hover {
    border-color: var(--jim-teal);
    color: var(--jim-teal);
}

.jim-header__register {
    color: var(--jim-white);
    background: var(--jim-navy);
    border: 1px solid var(--jim-navy);
}

.jim-header__register:hover {
    background: var(--jim-navy-deep);
    border-color: var(--jim-navy-deep);
}

/* ── Mobile toggle ── */
.jim-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--jim-sp-2);
    color: var(--jim-navy);
}

.jim-mobile-toggle svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}