/* Abacadome unified campus navigation */
.campus-top {
    background: linear-gradient(180deg, #161b22 0%, #0d1117 100%);
    border-bottom: 1px solid #30363d;
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 9000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.campus-top__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 58px;
    flex-wrap: wrap;
    padding: 8px 0;
}

.campus-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #c9d1d9;
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
}

.campus-logo span {
    background: linear-gradient(90deg, #58a6ff, #a371f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.campus-top .campus-nav {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
}

.campus-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.campus-nav__group {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid #21262d;
    border-radius: 10px;
    margin-right: 4px;
}

.campus-nav__label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #6e7681;
    padding: 0 8px 0 4px;
    font-weight: 700;
    border-right: 1px solid #30363d;
    margin-right: 4px;
}

.campus-nav a {
    color: #8b949e;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 7px 12px;
    border-radius: 8px;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.campus-nav a:hover {
    color: #c9d1d9;
    background: rgba(88, 166, 255, 0.1);
}

.campus-nav a.active {
    color: #58a6ff;
    background: rgba(88, 166, 255, 0.12);
}

.auth-nav-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 6px;
}

#auth-nav-link {
    border: 1px solid #30363d !important;
    color: #8b949e !important;
    padding: 7px 14px !important;
    border-radius: 8px !important;
    font-size: 0.88rem !important;
}

.auth-sign-out {
    border: 1px solid #e34c26;
    background: rgba(227, 76, 38, 0.14);
    color: #ff7b72;
    padding: 7px 12px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    transition: background 0.15s, color 0.15s;
}

.auth-sign-out:hover {
    background: rgba(227, 76, 38, 0.28);
    color: #ffa198;
}

.auth-sign-out:disabled {
    opacity: 0.65;
    cursor: wait;
}

#auth-nav-link[data-auth-state="logged-in"] {
    border-color: #238636 !important;
    color: #3fb950 !important;
    background: rgba(35, 134, 54, 0.12) !important;
}

#auth-nav-link[data-auth-state="logged-out"] {
    border-color: #e34c26 !important;
    color: #ff7b72 !important;
}

@media (max-width: 1024px) {
    .campus-nav__group {
        padding: 3px 6px;
    }
}

@media (max-width: 860px) {
    .campus-top__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    .campus-nav {
        justify-content: flex-end;
        gap: 4px;
    }
    .campus-nav__label {
        display: none;
    }
    .campus-nav__group {
        border: none;
        background: transparent;
        padding: 0;
        margin-right: 0;
    }
}

@media (max-width: 520px) {
    .campus-top {
        padding: 0 12px;
    }
    .campus-logo span {
        display: none;
    }
    .campus-nav a {
        padding: 6px 9px;
        font-size: 0.82rem;
    }
    #auth-nav-link {
        padding: 6px 10px !important;
    }
    .auth-sign-out {
        padding: 6px 10px;
        font-size: 0.82rem;
    }
}