/*
 * KEC Header — Login / Register bar
 * Linked from includes/header.php
 */

.site-header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
    gap: 1rem;
    position: relative;
}

.site-header .logo {
    flex-shrink: 1;
    min-width: 0;
}

.site-header .header-inner .main-nav {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.site-header .nav-auth {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.75rem;
    padding-left: 0.75rem;
    border-left: 2px solid var(--border, #E5E5E5);
    flex-shrink: 0;
}

.site-header .btn-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    white-space: nowrap;
    min-height: 40px;
    line-height: 1.2;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.site-header .btn-nav-outline {
    border: 2px solid var(--black, #000);
    color: var(--black, #000);
    background: transparent;
}

.site-header .btn-nav-outline:hover,
.site-header .btn-nav-outline.active {
    background: var(--black, #000);
    color: var(--white, #fff);
}

.site-header .btn-nav-primary {
    background: var(--yellow, #FFCC31);
    color: var(--black, #000);
    border: 2px solid var(--yellow, #FFCC31);
    box-shadow: 0 2px 8px rgba(255, 204, 49, 0.35);
}

.site-header .btn-nav-primary:hover {
    background: var(--yellow-hover, #E6B820);
    border-color: var(--yellow-hover, #E6B820);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 204, 49, 0.45);
}

.site-header .btn-nav-primary.active {
    background: var(--black, #000);
    color: var(--yellow, #FFCC31);
    border-color: var(--black, #000);
    box-shadow: none;
}

.site-header .btn-nav-admin {
    background: var(--black, #000);
    color: var(--yellow, #FFCC31);
    border: 2px solid var(--black, #000);
}

.site-header .btn-nav-admin:hover {
    background: var(--black-soft, #1A1A1A);
}

.site-header .nav-user {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted, #444);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 992px) {
    .site-header .main-nav a {
        padding: 0.55rem 0.75rem;
        font-size: 0.85rem;
    }

    .site-header .btn-nav {
        padding: 0.45rem 0.75rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .site-header .logo {
        max-width: 38%;
    }

    .site-header .logo-img {
        max-width: 100%;
    }

    .site-header .header-inner .main-nav {
        margin-left: 0;
    }

    .site-header .nav-auth {
        order: 2;
        margin-left: auto;
        margin-right: 0;
        padding-left: 0;
        border-left: none;
        gap: 0.4rem;
    }

    .site-header .nav-toggle {
        order: 3;
        margin-left: 0.25rem;
        flex-shrink: 0;
    }

    .site-header .btn-nav {
        padding: 0.45rem 0.7rem;
        font-size: 0.78rem;
        min-height: 36px;
    }

    .site-header .nav-user {
        display: none;
    }

    .site-header .btn-nav-admin {
        padding: 0.45rem 0.55rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .site-header .nav-auth {
        gap: 0.3rem;
    }

    .site-header .btn-nav {
        padding: 0.4rem 0.55rem;
        font-size: 0.72rem;
        min-height: 34px;
    }
}

@media (max-width: 360px) {
    .site-header .logo {
        max-width: 32%;
    }

    .site-header .btn-nav-outline {
        padding: 0.4rem 0.5rem;
    }

    .site-header .btn-nav-primary {
        padding: 0.4rem 0.6rem;
    }
}